trying to compile for windows, but not tested
This commit is contained in:
Alexsandro Percy
parent
4ea68bf425
commit
775a20424a
1
.gitignore
vendored
1
.gitignore
vendored
@ -1,2 +1 @@
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recorded.ogg
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compile_win.sh
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1
ptt_talk_src/compile_win.sh
Executable file
1
ptt_talk_src/compile_win.sh
Executable file
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x86_64-w64-mingw32-g++ ptt_talk.cpp audio_rec_play.cpp sine.cpp -static-libgcc -static-libstdc++ -lportaudio -lws2_32 -lm -pthread -o win_version/ptttalk.exe
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360
ptt_talk_src/mingw.thread.h
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360
ptt_talk_src/mingw.thread.h
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/**
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* @file mingw.thread.h
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* @brief std::thread implementation for MinGW
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* (c) 2013-2016 by Mega Limited, Auckland, New Zealand
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* @author Alexander Vassilev
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*
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* @copyright Simplified (2-clause) BSD License.
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* You should have received a copy of the license along with this
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* program.
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*
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* This code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* @note
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* This file may become part of the mingw-w64 runtime package. If/when this happens,
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* the appropriate license will be added, i.e. this code will become dual-licensed,
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* and the current BSD 2-clause license will stay.
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*/
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#ifndef WIN32STDTHREAD_H
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#define WIN32STDTHREAD_H
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#if !defined(__cplusplus) || (__cplusplus < 201103L)
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#error A C++11 compiler is required!
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#endif
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// Use the standard classes for std::, if available.
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#include <thread>
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#include <cstddef> // For std::size_t
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#include <cerrno> // Detect error type.
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#include <exception> // For std::terminate
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#include <system_error> // For std::system_error
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#include <functional> // For std::hash
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#include <tuple> // For std::tuple
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#include <chrono> // For sleep timing.
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#include <memory> // For std::unique_ptr
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#include <iosfwd> // Stream output for thread ids.
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#include <utility> // For std::swap, std::forward
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#include "mingw_tread/mingw.invoke.h"
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#if (defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR))
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#pragma message "The Windows API that MinGW-w32 provides is not fully compatible\
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with Microsoft's API. We'll try to work around this, but we can make no\
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guarantees. This problem does not exist in MinGW-w64."
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#include <windows.h> // No further granularity can be expected.
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#else
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#include <synchapi.h> // For WaitForSingleObject
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#include <handleapi.h> // For CloseHandle, etc.
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#include <sysinfoapi.h> // For GetNativeSystemInfo
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#include <processthreadsapi.h> // For GetCurrentThreadId
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#endif
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#include <process.h> // For _beginthreadex
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#ifndef NDEBUG
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#include <cstdio>
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#endif
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#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0501)
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#error To use the MinGW-std-threads library, you will need to define the macro _WIN32_WINNT to be 0x0501 (Windows XP) or higher.
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#endif
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// Instead of INVALID_HANDLE_VALUE, _beginthreadex returns 0.
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namespace mingw_stdthread
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{
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namespace detail
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{
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template<std::size_t...>
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struct IntSeq {};
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template<std::size_t N, std::size_t... S>
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struct GenIntSeq : GenIntSeq<N-1, N-1, S...> { };
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template<std::size_t... S>
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struct GenIntSeq<0, S...> { typedef IntSeq<S...> type; };
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// Use a template specialization to avoid relying on compiler optimization
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// when determining the parameter integer sequence.
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template<class Func, class T, typename... Args>
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class ThreadFuncCall;
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// We can't define the Call struct in the function - the standard forbids template methods in that case
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template<class Func, std::size_t... S, typename... Args>
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class ThreadFuncCall<Func, detail::IntSeq<S...>, Args...>
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{
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static_assert(sizeof...(S) == sizeof...(Args), "Args must match.");
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using Tuple = std::tuple<typename std::decay<Args>::type...>;
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typename std::decay<Func>::type mFunc;
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Tuple mArgs;
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public:
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ThreadFuncCall(Func&& aFunc, Args&&... aArgs)
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: mFunc(std::forward<Func>(aFunc)),
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mArgs(std::forward<Args>(aArgs)...)
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{
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}
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void callFunc()
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{
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detail::invoke(std::move(mFunc), std::move(std::get<S>(mArgs)) ...);
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}
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};
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// Allow construction of threads without exposing implementation.
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class ThreadIdTool;
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} // Namespace "detail"
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class thread
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{
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public:
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class id
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{
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DWORD mId = 0;
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friend class thread;
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friend class std::hash<id>;
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friend class detail::ThreadIdTool;
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explicit id(DWORD aId) noexcept : mId(aId){}
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public:
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id (void) noexcept = default;
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friend bool operator==(id x, id y) noexcept {return x.mId == y.mId; }
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friend bool operator!=(id x, id y) noexcept {return x.mId != y.mId; }
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friend bool operator< (id x, id y) noexcept {return x.mId < y.mId; }
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friend bool operator<=(id x, id y) noexcept {return x.mId <= y.mId; }
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friend bool operator> (id x, id y) noexcept {return x.mId > y.mId; }
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friend bool operator>=(id x, id y) noexcept {return x.mId >= y.mId; }
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template<class _CharT, class _Traits>
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friend std::basic_ostream<_CharT, _Traits>&
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operator<<(std::basic_ostream<_CharT, _Traits>& __out, id __id)
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{
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if (__id.mId == 0)
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{
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return __out << "(invalid std::thread::id)";
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}
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else
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{
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return __out << __id.mId;
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}
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}
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};
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private:
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static constexpr HANDLE kInvalidHandle = nullptr;
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static constexpr DWORD kInfinite = 0xffffffffl;
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HANDLE mHandle;
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id mThreadId;
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template <class Call>
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static unsigned __stdcall threadfunc(void* arg)
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{
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std::unique_ptr<Call> call(static_cast<Call*>(arg));
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call->callFunc();
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return 0;
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}
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static unsigned int _hardware_concurrency_helper() noexcept
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{
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SYSTEM_INFO sysinfo;
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// This is one of the few functions used by the library which has a nearly-
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// equivalent function defined in earlier versions of Windows. Include the
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// workaround, just as a reminder that it does exist.
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#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0501)
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::GetNativeSystemInfo(&sysinfo);
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#else
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::GetSystemInfo(&sysinfo);
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#endif
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return sysinfo.dwNumberOfProcessors;
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}
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public:
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typedef HANDLE native_handle_type;
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id get_id() const noexcept {return mThreadId;}
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native_handle_type native_handle() const {return mHandle;}
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thread(): mHandle(kInvalidHandle), mThreadId(){}
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thread(thread&& other)
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:mHandle(other.mHandle), mThreadId(other.mThreadId)
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{
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other.mHandle = kInvalidHandle;
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other.mThreadId = id{};
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}
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thread(const thread &other)=delete;
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template<class Func, typename... Args>
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explicit thread(Func&& func, Args&&... args) : mHandle(), mThreadId()
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{
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using ArgSequence = typename detail::GenIntSeq<sizeof...(Args)>::type;
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using Call = detail::ThreadFuncCall<Func, ArgSequence, Args...>;
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auto call = new Call(
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std::forward<Func>(func), std::forward<Args>(args)...);
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unsigned id_receiver;
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auto int_handle = _beginthreadex(NULL, 0, threadfunc<Call>,
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static_cast<LPVOID>(call), 0, &id_receiver);
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if (int_handle == 0)
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{
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mHandle = kInvalidHandle;
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int errnum = errno;
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delete call;
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// Note: Should only throw EINVAL, EAGAIN, EACCES
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throw std::system_error(errnum, std::generic_category());
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} else {
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mThreadId.mId = id_receiver;
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mHandle = reinterpret_cast<HANDLE>(int_handle);
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}
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}
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bool joinable() const {return mHandle != kInvalidHandle;}
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// Note: Due to lack of synchronization, this function has a race condition
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// if called concurrently, which leads to undefined behavior. The same applies
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// to all other member functions of this class, but this one is mentioned
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// explicitly.
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void join()
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{
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using namespace std;
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if (get_id() == id(GetCurrentThreadId()))
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throw system_error(make_error_code(errc::resource_deadlock_would_occur));
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if (mHandle == kInvalidHandle)
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throw system_error(make_error_code(errc::no_such_process));
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if (!joinable())
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throw system_error(make_error_code(errc::invalid_argument));
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WaitForSingleObject(mHandle, kInfinite);
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CloseHandle(mHandle);
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mHandle = kInvalidHandle;
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mThreadId = id{};
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}
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~thread()
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{
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if (joinable())
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{
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#ifndef NDEBUG
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std::printf("Error: Must join() or detach() a thread before \
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destroying it.\n");
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#endif
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std::terminate();
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}
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}
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thread& operator=(const thread&) = delete;
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thread& operator=(thread&& other) noexcept
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{
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if (joinable())
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{
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#ifndef NDEBUG
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std::printf("Error: Must join() or detach() a thread before \
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moving another thread to it.\n");
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#endif
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std::terminate();
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}
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swap(std::forward<thread>(other));
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return *this;
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}
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void swap(thread&& other) noexcept
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{
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std::swap(mHandle, other.mHandle);
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std::swap(mThreadId.mId, other.mThreadId.mId);
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}
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static unsigned int hardware_concurrency() noexcept
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{
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static unsigned int cached = _hardware_concurrency_helper();
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return cached;
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}
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void detach()
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{
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if (!joinable())
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{
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using namespace std;
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throw system_error(make_error_code(errc::invalid_argument));
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}
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if (mHandle != kInvalidHandle)
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{
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CloseHandle(mHandle);
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mHandle = kInvalidHandle;
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}
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mThreadId = id{};
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}
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};
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namespace detail
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{
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class ThreadIdTool
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{
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public:
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static thread::id make_id (DWORD base_id) noexcept
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{
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return thread::id(base_id);
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}
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};
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} // Namespace "detail"
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namespace this_thread
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{
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inline thread::id get_id() noexcept
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{
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return detail::ThreadIdTool::make_id(GetCurrentThreadId());
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}
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inline void yield() noexcept {Sleep(0);}
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template< class Rep, class Period >
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void sleep_for( const std::chrono::duration<Rep,Period>& sleep_duration)
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{
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static constexpr DWORD kInfinite = 0xffffffffl;
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using namespace std::chrono;
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using rep = milliseconds::rep;
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rep ms = duration_cast<milliseconds>(sleep_duration).count();
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while (ms > 0)
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{
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constexpr rep kMaxRep = static_cast<rep>(kInfinite - 1);
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auto sleepTime = (ms < kMaxRep) ? ms : kMaxRep;
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Sleep(static_cast<DWORD>(sleepTime));
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ms -= sleepTime;
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}
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}
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template <class Clock, class Duration>
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void sleep_until(const std::chrono::time_point<Clock,Duration>& sleep_time)
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{
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sleep_for(sleep_time-Clock::now());
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}
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}
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} // Namespace mingw_stdthread
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namespace std
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{
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// Because of quirks of the compiler, the common "using namespace std;"
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// directive would flatten the namespaces and introduce ambiguity where there
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// was none. Direct specification (std::), however, would be unaffected.
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// Take the safe option, and include only in the presence of MinGW's win32
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// implementation.
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#if defined(__MINGW32__ ) && !defined(_GLIBCXX_HAS_GTHREADS)
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using mingw_stdthread::thread;
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// Remove ambiguity immediately, to avoid problems arising from the above.
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//using std::thread;
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namespace this_thread
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{
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using namespace mingw_stdthread::this_thread;
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}
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#elif !defined(MINGW_STDTHREAD_REDUNDANCY_WARNING) // Skip repetition
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#define MINGW_STDTHREAD_REDUNDANCY_WARNING
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#pragma message "This version of MinGW seems to include a win32 port of\
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pthreads, and probably already has C++11 std threading classes implemented,\
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based on pthreads. These classes, found in namespace std, are not overridden\
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by the mingw-std-thread library. If you would still like to use this\
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implementation (as it is more lightweight), use the classes provided in\
|
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namespace mingw_stdthread."
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#endif
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// Specialize hash for this implementation's thread::id, even if the
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// std::thread::id already has a hash.
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template<>
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struct hash<mingw_stdthread::thread::id>
|
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{
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typedef mingw_stdthread::thread::id argument_type;
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typedef size_t result_type;
|
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size_t operator() (const argument_type & i) const noexcept
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{
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return i.mId;
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}
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};
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}
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#endif // WIN32STDTHREAD_H
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564
ptt_talk_src/mingw_tread/mingw.condition_variable.h
Normal file
564
ptt_talk_src/mingw_tread/mingw.condition_variable.h
Normal file
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/**
|
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* @file condition_variable.h
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* @brief std::condition_variable implementation for MinGW
|
||||
*
|
||||
* (c) 2013-2016 by Mega Limited, Auckland, New Zealand
|
||||
* @author Alexander Vassilev
|
||||
*
|
||||
* @copyright Simplified (2-clause) BSD License.
|
||||
* You should have received a copy of the license along with this
|
||||
* program.
|
||||
*
|
||||
* This code is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
* @note
|
||||
* This file may become part of the mingw-w64 runtime package. If/when this happens,
|
||||
* the appropriate license will be added, i.e. this code will become dual-licensed,
|
||||
* and the current BSD 2-clause license will stay.
|
||||
*/
|
||||
|
||||
#ifndef MINGW_CONDITIONAL_VARIABLE_H
|
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#define MINGW_CONDITIONAL_VARIABLE_H
|
||||
|
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#if !defined(__cplusplus) || (__cplusplus < 201103L)
|
||||
#error A C++11 compiler is required!
|
||||
#endif
|
||||
// Use the standard classes for std::, if available.
|
||||
#include <condition_variable>
|
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|
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#include <cassert>
|
||||
#include <chrono>
|
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#include <system_error>
|
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|
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#include <sdkddkver.h> // Detect Windows version.
|
||||
#if (WINVER < _WIN32_WINNT_VISTA)
|
||||
#include <atomic>
|
||||
#endif
|
||||
#if (defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR))
|
||||
#pragma message "The Windows API that MinGW-w32 provides is not fully compatible\
|
||||
with Microsoft's API. We'll try to work around this, but we can make no\
|
||||
guarantees. This problem does not exist in MinGW-w64."
|
||||
#include <windows.h> // No further granularity can be expected.
|
||||
#else
|
||||
#if (WINVER < _WIN32_WINNT_VISTA)
|
||||
#include <windef.h>
|
||||
#include <winbase.h> // For CreateSemaphore
|
||||
#include <handleapi.h>
|
||||
#endif
|
||||
#include <synchapi.h>
|
||||
#endif
|
||||
|
||||
#include "mingw.mutex.h"
|
||||
#include "mingw.shared_mutex.h"
|
||||
|
||||
#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0501)
|
||||
#error To use the MinGW-std-threads library, you will need to define the macro _WIN32_WINNT to be 0x0501 (Windows XP) or higher.
|
||||
#endif
|
||||
|
||||
namespace mingw_stdthread
|
||||
{
|
||||
#if defined(__MINGW32__ ) && !defined(_GLIBCXX_HAS_GTHREADS)
|
||||
enum class cv_status { no_timeout, timeout };
|
||||
#else
|
||||
using std::cv_status;
|
||||
#endif
|
||||
namespace xp
|
||||
{
|
||||
// Include the XP-compatible condition_variable classes only if actually
|
||||
// compiling for XP. The XP-compatible classes are slower than the newer
|
||||
// versions, and depend on features not compatible with Windows Phone 8.
|
||||
#if (WINVER < _WIN32_WINNT_VISTA)
|
||||
class condition_variable_any
|
||||
{
|
||||
recursive_mutex mMutex {};
|
||||
std::atomic<int> mNumWaiters {0};
|
||||
HANDLE mSemaphore;
|
||||
HANDLE mWakeEvent {};
|
||||
public:
|
||||
using native_handle_type = HANDLE;
|
||||
native_handle_type native_handle()
|
||||
{
|
||||
return mSemaphore;
|
||||
}
|
||||
condition_variable_any(const condition_variable_any&) = delete;
|
||||
condition_variable_any& operator=(const condition_variable_any&) = delete;
|
||||
condition_variable_any()
|
||||
: mSemaphore(CreateSemaphoreA(NULL, 0, 0xFFFF, NULL))
|
||||
{
|
||||
if (mSemaphore == NULL)
|
||||
throw std::system_error(GetLastError(), std::generic_category());
|
||||
mWakeEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
|
||||
if (mWakeEvent == NULL)
|
||||
{
|
||||
CloseHandle(mSemaphore);
|
||||
throw std::system_error(GetLastError(), std::generic_category());
|
||||
}
|
||||
}
|
||||
~condition_variable_any()
|
||||
{
|
||||
CloseHandle(mWakeEvent);
|
||||
CloseHandle(mSemaphore);
|
||||
}
|
||||
private:
|
||||
template <class M>
|
||||
bool wait_impl(M& lock, DWORD timeout)
|
||||
{
|
||||
{
|
||||
lock_guard<recursive_mutex> guard(mMutex);
|
||||
mNumWaiters++;
|
||||
}
|
||||
lock.unlock();
|
||||
DWORD ret = WaitForSingleObject(mSemaphore, timeout);
|
||||
|
||||
mNumWaiters--;
|
||||
SetEvent(mWakeEvent);
|
||||
lock.lock();
|
||||
if (ret == WAIT_OBJECT_0)
|
||||
return true;
|
||||
else if (ret == WAIT_TIMEOUT)
|
||||
return false;
|
||||
//2 possible cases:
|
||||
//1)The point in notify_all() where we determine the count to
|
||||
//increment the semaphore with has not been reached yet:
|
||||
//we just need to decrement mNumWaiters, but setting the event does not hurt
|
||||
//
|
||||
//2)Semaphore has just been released with mNumWaiters just before
|
||||
//we decremented it. This means that the semaphore count
|
||||
//after all waiters finish won't be 0 - because not all waiters
|
||||
//woke up by acquiring the semaphore - we woke up by a timeout.
|
||||
//The notify_all() must handle this gracefully
|
||||
//
|
||||
else
|
||||
{
|
||||
using namespace std;
|
||||
throw system_error(make_error_code(errc::protocol_error));
|
||||
}
|
||||
}
|
||||
public:
|
||||
template <class M>
|
||||
void wait(M& lock)
|
||||
{
|
||||
wait_impl(lock, INFINITE);
|
||||
}
|
||||
template <class M, class Predicate>
|
||||
void wait(M& lock, Predicate pred)
|
||||
{
|
||||
while(!pred())
|
||||
{
|
||||
wait(lock);
|
||||
};
|
||||
}
|
||||
|
||||
void notify_all() noexcept
|
||||
{
|
||||
lock_guard<recursive_mutex> lock(mMutex); //block any further wait requests until all current waiters are unblocked
|
||||
if (mNumWaiters.load() <= 0)
|
||||
return;
|
||||
|
||||
ReleaseSemaphore(mSemaphore, mNumWaiters, NULL);
|
||||
while(mNumWaiters > 0)
|
||||
{
|
||||
auto ret = WaitForSingleObject(mWakeEvent, 1000);
|
||||
if (ret == WAIT_FAILED || ret == WAIT_ABANDONED)
|
||||
std::terminate();
|
||||
}
|
||||
assert(mNumWaiters == 0);
|
||||
//in case some of the waiters timed out just after we released the
|
||||
//semaphore by mNumWaiters, it won't be zero now, because not all waiters
|
||||
//woke up by acquiring the semaphore. So we must zero the semaphore before
|
||||
//we accept waiters for the next event
|
||||
//See _wait_impl for details
|
||||
while(WaitForSingleObject(mSemaphore, 0) == WAIT_OBJECT_0);
|
||||
}
|
||||
void notify_one() noexcept
|
||||
{
|
||||
lock_guard<recursive_mutex> lock(mMutex);
|
||||
int targetWaiters = mNumWaiters.load() - 1;
|
||||
if (targetWaiters <= -1)
|
||||
return;
|
||||
ReleaseSemaphore(mSemaphore, 1, NULL);
|
||||
while(mNumWaiters > targetWaiters)
|
||||
{
|
||||
auto ret = WaitForSingleObject(mWakeEvent, 1000);
|
||||
if (ret == WAIT_FAILED || ret == WAIT_ABANDONED)
|
||||
std::terminate();
|
||||
}
|
||||
assert(mNumWaiters == targetWaiters);
|
||||
}
|
||||
template <class M, class Rep, class Period>
|
||||
cv_status wait_for(M& lock,
|
||||
const std::chrono::duration<Rep, Period>& rel_time)
|
||||
{
|
||||
using namespace std::chrono;
|
||||
auto timeout = duration_cast<milliseconds>(rel_time).count();
|
||||
DWORD waittime = (timeout < INFINITE) ? ((timeout < 0) ? 0 : static_cast<DWORD>(timeout)) : (INFINITE - 1);
|
||||
bool ret = wait_impl(lock, waittime) || (timeout >= INFINITE);
|
||||
return ret?cv_status::no_timeout:cv_status::timeout;
|
||||
}
|
||||
|
||||
template <class M, class Rep, class Period, class Predicate>
|
||||
bool wait_for(M& lock,
|
||||
const std::chrono::duration<Rep, Period>& rel_time, Predicate pred)
|
||||
{
|
||||
return wait_until(lock, std::chrono::steady_clock::now()+rel_time, pred);
|
||||
}
|
||||
template <class M, class Clock, class Duration>
|
||||
cv_status wait_until (M& lock,
|
||||
const std::chrono::time_point<Clock,Duration>& abs_time)
|
||||
{
|
||||
return wait_for(lock, abs_time - Clock::now());
|
||||
}
|
||||
template <class M, class Clock, class Duration, class Predicate>
|
||||
bool wait_until (M& lock,
|
||||
const std::chrono::time_point<Clock, Duration>& abs_time,
|
||||
Predicate pred)
|
||||
{
|
||||
while (!pred())
|
||||
{
|
||||
if (wait_until(lock, abs_time) == cv_status::timeout)
|
||||
{
|
||||
return pred();
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
};
|
||||
class condition_variable: condition_variable_any
|
||||
{
|
||||
using base = condition_variable_any;
|
||||
public:
|
||||
using base::native_handle_type;
|
||||
using base::native_handle;
|
||||
using base::base;
|
||||
using base::notify_all;
|
||||
using base::notify_one;
|
||||
void wait(unique_lock<mutex> &lock)
|
||||
{
|
||||
base::wait(lock);
|
||||
}
|
||||
template <class Predicate>
|
||||
void wait(unique_lock<mutex>& lock, Predicate pred)
|
||||
{
|
||||
base::wait(lock, pred);
|
||||
}
|
||||
template <class Rep, class Period>
|
||||
cv_status wait_for(unique_lock<mutex>& lock, const std::chrono::duration<Rep, Period>& rel_time)
|
||||
{
|
||||
return base::wait_for(lock, rel_time);
|
||||
}
|
||||
template <class Rep, class Period, class Predicate>
|
||||
bool wait_for(unique_lock<mutex>& lock, const std::chrono::duration<Rep, Period>& rel_time, Predicate pred)
|
||||
{
|
||||
return base::wait_for(lock, rel_time, pred);
|
||||
}
|
||||
template <class Clock, class Duration>
|
||||
cv_status wait_until (unique_lock<mutex>& lock, const std::chrono::time_point<Clock,Duration>& abs_time)
|
||||
{
|
||||
return base::wait_until(lock, abs_time);
|
||||
}
|
||||
template <class Clock, class Duration, class Predicate>
|
||||
bool wait_until (unique_lock<mutex>& lock, const std::chrono::time_point<Clock, Duration>& abs_time, Predicate pred)
|
||||
{
|
||||
return base::wait_until(lock, abs_time, pred);
|
||||
}
|
||||
};
|
||||
#endif // Compiling for XP
|
||||
} // Namespace mingw_stdthread::xp
|
||||
|
||||
#if (WINVER >= _WIN32_WINNT_VISTA)
|
||||
namespace vista
|
||||
{
|
||||
// If compiling for Vista or higher, use the native condition variable.
|
||||
class condition_variable
|
||||
{
|
||||
static constexpr DWORD kInfinite = 0xffffffffl;
|
||||
#pragma GCC diagnostic push
|
||||
#pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant"
|
||||
CONDITION_VARIABLE cvariable_ = CONDITION_VARIABLE_INIT;
|
||||
#pragma GCC diagnostic pop
|
||||
|
||||
friend class condition_variable_any;
|
||||
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
template<typename MTX>
|
||||
inline static void before_wait (MTX * pmutex)
|
||||
{
|
||||
pmutex->mOwnerThread.checkSetOwnerBeforeUnlock();
|
||||
}
|
||||
template<typename MTX>
|
||||
inline static void after_wait (MTX * pmutex)
|
||||
{
|
||||
pmutex->mOwnerThread.setOwnerAfterLock(GetCurrentThreadId());
|
||||
}
|
||||
#else
|
||||
inline static void before_wait (void *) { }
|
||||
inline static void after_wait (void *) { }
|
||||
#endif
|
||||
|
||||
bool wait_impl (unique_lock<xp::mutex> & lock, DWORD time)
|
||||
{
|
||||
using mutex_handle_type = typename xp::mutex::native_handle_type;
|
||||
static_assert(std::is_same<mutex_handle_type, PCRITICAL_SECTION>::value,
|
||||
"Native Win32 condition variable requires std::mutex to \
|
||||
use native Win32 critical section objects.");
|
||||
xp::mutex * pmutex = lock.release();
|
||||
before_wait(pmutex);
|
||||
BOOL success = SleepConditionVariableCS(&cvariable_,
|
||||
pmutex->native_handle(),
|
||||
time);
|
||||
after_wait(pmutex);
|
||||
lock = unique_lock<xp::mutex>(*pmutex, adopt_lock);
|
||||
return success;
|
||||
}
|
||||
|
||||
bool wait_unique (windows7::mutex * pmutex, DWORD time)
|
||||
{
|
||||
before_wait(pmutex);
|
||||
BOOL success = SleepConditionVariableSRW( native_handle(),
|
||||
pmutex->native_handle(),
|
||||
time,
|
||||
// CONDITION_VARIABLE_LOCKMODE_SHARED has a value not specified by
|
||||
// Microsoft's Dev Center, but is known to be (convertible to) a ULONG. To
|
||||
// ensure that the value passed to this function is not equal to Microsoft's
|
||||
// constant, we can either use a static_assert, or simply generate an
|
||||
// appropriate value.
|
||||
!CONDITION_VARIABLE_LOCKMODE_SHARED);
|
||||
after_wait(pmutex);
|
||||
return success;
|
||||
}
|
||||
bool wait_impl (unique_lock<windows7::mutex> & lock, DWORD time)
|
||||
{
|
||||
windows7::mutex * pmutex = lock.release();
|
||||
bool success = wait_unique(pmutex, time);
|
||||
lock = unique_lock<windows7::mutex>(*pmutex, adopt_lock);
|
||||
return success;
|
||||
}
|
||||
public:
|
||||
using native_handle_type = PCONDITION_VARIABLE;
|
||||
native_handle_type native_handle (void)
|
||||
{
|
||||
return &cvariable_;
|
||||
}
|
||||
|
||||
condition_variable (void) = default;
|
||||
~condition_variable (void) = default;
|
||||
|
||||
condition_variable (const condition_variable &) = delete;
|
||||
condition_variable & operator= (const condition_variable &) = delete;
|
||||
|
||||
void notify_one (void) noexcept
|
||||
{
|
||||
WakeConditionVariable(&cvariable_);
|
||||
}
|
||||
|
||||
void notify_all (void) noexcept
|
||||
{
|
||||
WakeAllConditionVariable(&cvariable_);
|
||||
}
|
||||
|
||||
void wait (unique_lock<mutex> & lock)
|
||||
{
|
||||
wait_impl(lock, kInfinite);
|
||||
}
|
||||
|
||||
template<class Predicate>
|
||||
void wait (unique_lock<mutex> & lock, Predicate pred)
|
||||
{
|
||||
while (!pred())
|
||||
wait(lock);
|
||||
}
|
||||
|
||||
template <class Rep, class Period>
|
||||
cv_status wait_for(unique_lock<mutex>& lock,
|
||||
const std::chrono::duration<Rep, Period>& rel_time)
|
||||
{
|
||||
using namespace std::chrono;
|
||||
auto timeout = duration_cast<milliseconds>(rel_time).count();
|
||||
DWORD waittime = (timeout < kInfinite) ? ((timeout < 0) ? 0 : static_cast<DWORD>(timeout)) : (kInfinite - 1);
|
||||
bool result = wait_impl(lock, waittime) || (timeout >= kInfinite);
|
||||
return result ? cv_status::no_timeout : cv_status::timeout;
|
||||
}
|
||||
|
||||
template <class Rep, class Period, class Predicate>
|
||||
bool wait_for(unique_lock<mutex>& lock,
|
||||
const std::chrono::duration<Rep, Period>& rel_time,
|
||||
Predicate pred)
|
||||
{
|
||||
return wait_until(lock,
|
||||
std::chrono::steady_clock::now() + rel_time,
|
||||
std::move(pred));
|
||||
}
|
||||
template <class Clock, class Duration>
|
||||
cv_status wait_until (unique_lock<mutex>& lock,
|
||||
const std::chrono::time_point<Clock,Duration>& abs_time)
|
||||
{
|
||||
return wait_for(lock, abs_time - Clock::now());
|
||||
}
|
||||
template <class Clock, class Duration, class Predicate>
|
||||
bool wait_until (unique_lock<mutex>& lock,
|
||||
const std::chrono::time_point<Clock, Duration>& abs_time,
|
||||
Predicate pred)
|
||||
{
|
||||
while (!pred())
|
||||
{
|
||||
if (wait_until(lock, abs_time) == cv_status::timeout)
|
||||
{
|
||||
return pred();
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
};
|
||||
|
||||
class condition_variable_any
|
||||
{
|
||||
static constexpr DWORD kInfinite = 0xffffffffl;
|
||||
using native_shared_mutex = windows7::shared_mutex;
|
||||
|
||||
condition_variable internal_cv_ {};
|
||||
// When available, the SRW-based mutexes should be faster than the
|
||||
// CriticalSection-based mutexes. Only try_lock will be unavailable in Vista,
|
||||
// and try_lock is not used by condition_variable_any.
|
||||
windows7::mutex internal_mutex_ {};
|
||||
|
||||
template<class L>
|
||||
bool wait_impl (L & lock, DWORD time)
|
||||
{
|
||||
unique_lock<decltype(internal_mutex_)> internal_lock(internal_mutex_);
|
||||
lock.unlock();
|
||||
bool success = internal_cv_.wait_impl(internal_lock, time);
|
||||
lock.lock();
|
||||
return success;
|
||||
}
|
||||
// If the lock happens to be called on a native Windows mutex, skip any extra
|
||||
// contention.
|
||||
inline bool wait_impl (unique_lock<mutex> & lock, DWORD time)
|
||||
{
|
||||
return internal_cv_.wait_impl(lock, time);
|
||||
}
|
||||
// Some shared_mutex functionality is available even in Vista, but it's not
|
||||
// until Windows 7 that a full implementation is natively possible. The class
|
||||
// itself is defined, with missing features, at the Vista feature level.
|
||||
bool wait_impl (unique_lock<native_shared_mutex> & lock, DWORD time)
|
||||
{
|
||||
native_shared_mutex * pmutex = lock.release();
|
||||
bool success = internal_cv_.wait_unique(pmutex, time);
|
||||
lock = unique_lock<native_shared_mutex>(*pmutex, adopt_lock);
|
||||
return success;
|
||||
}
|
||||
bool wait_impl (shared_lock<native_shared_mutex> & lock, DWORD time)
|
||||
{
|
||||
native_shared_mutex * pmutex = lock.release();
|
||||
BOOL success = SleepConditionVariableSRW(native_handle(),
|
||||
pmutex->native_handle(), time,
|
||||
CONDITION_VARIABLE_LOCKMODE_SHARED);
|
||||
lock = shared_lock<native_shared_mutex>(*pmutex, adopt_lock);
|
||||
return success;
|
||||
}
|
||||
public:
|
||||
using native_handle_type = typename condition_variable::native_handle_type;
|
||||
|
||||
native_handle_type native_handle (void)
|
||||
{
|
||||
return internal_cv_.native_handle();
|
||||
}
|
||||
|
||||
void notify_one (void) noexcept
|
||||
{
|
||||
internal_cv_.notify_one();
|
||||
}
|
||||
|
||||
void notify_all (void) noexcept
|
||||
{
|
||||
internal_cv_.notify_all();
|
||||
}
|
||||
|
||||
condition_variable_any (void) = default;
|
||||
~condition_variable_any (void) = default;
|
||||
|
||||
template<class L>
|
||||
void wait (L & lock)
|
||||
{
|
||||
wait_impl(lock, kInfinite);
|
||||
}
|
||||
|
||||
template<class L, class Predicate>
|
||||
void wait (L & lock, Predicate pred)
|
||||
{
|
||||
while (!pred())
|
||||
wait(lock);
|
||||
}
|
||||
|
||||
template <class L, class Rep, class Period>
|
||||
cv_status wait_for(L& lock, const std::chrono::duration<Rep,Period>& period)
|
||||
{
|
||||
using namespace std::chrono;
|
||||
auto timeout = duration_cast<milliseconds>(period).count();
|
||||
DWORD waittime = (timeout < kInfinite) ? ((timeout < 0) ? 0 : static_cast<DWORD>(timeout)) : (kInfinite - 1);
|
||||
bool result = wait_impl(lock, waittime) || (timeout >= kInfinite);
|
||||
return result ? cv_status::no_timeout : cv_status::timeout;
|
||||
}
|
||||
|
||||
template <class L, class Rep, class Period, class Predicate>
|
||||
bool wait_for(L& lock, const std::chrono::duration<Rep, Period>& period,
|
||||
Predicate pred)
|
||||
{
|
||||
return wait_until(lock, std::chrono::steady_clock::now() + period,
|
||||
std::move(pred));
|
||||
}
|
||||
template <class L, class Clock, class Duration>
|
||||
cv_status wait_until (L& lock,
|
||||
const std::chrono::time_point<Clock,Duration>& abs_time)
|
||||
{
|
||||
return wait_for(lock, abs_time - Clock::now());
|
||||
}
|
||||
template <class L, class Clock, class Duration, class Predicate>
|
||||
bool wait_until (L& lock,
|
||||
const std::chrono::time_point<Clock, Duration>& abs_time,
|
||||
Predicate pred)
|
||||
{
|
||||
while (!pred())
|
||||
{
|
||||
if (wait_until(lock, abs_time) == cv_status::timeout)
|
||||
{
|
||||
return pred();
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
};
|
||||
} // Namespace vista
|
||||
#endif
|
||||
#if WINVER < 0x0600
|
||||
using xp::condition_variable;
|
||||
using xp::condition_variable_any;
|
||||
#else
|
||||
using vista::condition_variable;
|
||||
using vista::condition_variable_any;
|
||||
#endif
|
||||
} // Namespace mingw_stdthread
|
||||
|
||||
// Push objects into std, but only if they are not already there.
|
||||
namespace std
|
||||
{
|
||||
// Because of quirks of the compiler, the common "using namespace std;"
|
||||
// directive would flatten the namespaces and introduce ambiguity where there
|
||||
// was none. Direct specification (std::), however, would be unaffected.
|
||||
// Take the safe option, and include only in the presence of MinGW's win32
|
||||
// implementation.
|
||||
#if defined(__MINGW32__ ) && !defined(_GLIBCXX_HAS_GTHREADS)
|
||||
using mingw_stdthread::cv_status;
|
||||
using mingw_stdthread::condition_variable;
|
||||
using mingw_stdthread::condition_variable_any;
|
||||
#elif !defined(MINGW_STDTHREAD_REDUNDANCY_WARNING) // Skip repetition
|
||||
#define MINGW_STDTHREAD_REDUNDANCY_WARNING
|
||||
#pragma message "This version of MinGW seems to include a win32 port of\
|
||||
pthreads, and probably already has C++11 std threading classes implemented,\
|
||||
based on pthreads. These classes, found in namespace std, are not overridden\
|
||||
by the mingw-std-thread library. If you would still like to use this\
|
||||
implementation (as it is more lightweight), use the classes provided in\
|
||||
namespace mingw_stdthread."
|
||||
#endif
|
||||
}
|
||||
#endif // MINGW_CONDITIONAL_VARIABLE_H
|
||||
1131
ptt_talk_src/mingw_tread/mingw.future.h
Normal file
1131
ptt_talk_src/mingw_tread/mingw.future.h
Normal file
File diff suppressed because it is too large
Load Diff
109
ptt_talk_src/mingw_tread/mingw.invoke.h
Normal file
109
ptt_talk_src/mingw_tread/mingw.invoke.h
Normal file
@ -0,0 +1,109 @@
|
||||
/// \file mingw.invoke.h
|
||||
/// \brief Lightweight `invoke` implementation, for C++11 and C++14.
|
||||
///
|
||||
/// (c) 2018-2019 by Nathaniel J. McClatchey, San Jose, CA, United States
|
||||
/// \author Nathaniel J. McClatchey, PhD
|
||||
///
|
||||
/// \copyright Simplified (2-clause) BSD License.
|
||||
///
|
||||
/// \note This file may become part of the mingw-w64 runtime package. If/when
|
||||
/// this happens, the appropriate license will be added, i.e. this code will
|
||||
/// become dual-licensed, and the current BSD 2-clause license will stay.
|
||||
|
||||
#ifndef MINGW_INVOKE_H_
|
||||
#define MINGW_INVOKE_H_
|
||||
|
||||
#include <type_traits> // For std::result_of, etc.
|
||||
#include <utility> // For std::forward
|
||||
#include <functional> // For std::reference_wrapper
|
||||
|
||||
namespace mingw_stdthread
|
||||
{
|
||||
namespace detail
|
||||
{
|
||||
// For compatibility, implement std::invoke for C++11 and C++14
|
||||
#if __cplusplus < 201703L
|
||||
template<bool PMemFunc, bool PMemData>
|
||||
struct Invoker
|
||||
{
|
||||
template<class F, class... Args>
|
||||
inline static typename std::result_of<F(Args...)>::type invoke (F&& f, Args&&... args)
|
||||
{
|
||||
return std::forward<F>(f)(std::forward<Args>(args)...);
|
||||
}
|
||||
};
|
||||
template<bool>
|
||||
struct InvokerHelper;
|
||||
|
||||
template<>
|
||||
struct InvokerHelper<false>
|
||||
{
|
||||
template<class T1>
|
||||
inline static auto get (T1&& t1) -> decltype(*std::forward<T1>(t1))
|
||||
{
|
||||
return *std::forward<T1>(t1);
|
||||
}
|
||||
|
||||
template<class T1>
|
||||
inline static auto get (const std::reference_wrapper<T1>& t1) -> decltype(t1.get())
|
||||
{
|
||||
return t1.get();
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct InvokerHelper<true>
|
||||
{
|
||||
template<class T1>
|
||||
inline static auto get (T1&& t1) -> decltype(std::forward<T1>(t1))
|
||||
{
|
||||
return std::forward<T1>(t1);
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct Invoker<true, false>
|
||||
{
|
||||
template<class T, class F, class T1, class... Args>
|
||||
inline static auto invoke (F T::* f, T1&& t1, Args&&... args) ->\
|
||||
decltype((InvokerHelper<std::is_base_of<T,typename std::decay<T1>::type>::value>::get(std::forward<T1>(t1)).*f)(std::forward<Args>(args)...))
|
||||
{
|
||||
return (InvokerHelper<std::is_base_of<T,typename std::decay<T1>::type>::value>::get(std::forward<T1>(t1)).*f)(std::forward<Args>(args)...);
|
||||
}
|
||||
};
|
||||
|
||||
template<>
|
||||
struct Invoker<false, true>
|
||||
{
|
||||
template<class T, class F, class T1, class... Args>
|
||||
inline static auto invoke (F T::* f, T1&& t1, Args&&... args) ->\
|
||||
decltype(InvokerHelper<std::is_base_of<T,typename std::decay<T1>::type>::value>::get(t1).*f)
|
||||
{
|
||||
return InvokerHelper<std::is_base_of<T,typename std::decay<T1>::type>::value>::get(t1).*f;
|
||||
}
|
||||
};
|
||||
|
||||
template<class F, class... Args>
|
||||
struct InvokeResult
|
||||
{
|
||||
typedef Invoker<std::is_member_function_pointer<typename std::remove_reference<F>::type>::value,
|
||||
std::is_member_object_pointer<typename std::remove_reference<F>::type>::value &&
|
||||
(sizeof...(Args) == 1)> invoker;
|
||||
inline static auto invoke (F&& f, Args&&... args) -> decltype(invoker::invoke(std::forward<F>(f), std::forward<Args>(args)...))
|
||||
{
|
||||
return invoker::invoke(std::forward<F>(f), std::forward<Args>(args)...);
|
||||
}
|
||||
};
|
||||
|
||||
template<class F, class...Args>
|
||||
auto invoke (F&& f, Args&&... args) -> decltype(InvokeResult<F, Args...>::invoke(std::forward<F>(f), std::forward<Args>(args)...))
|
||||
{
|
||||
return InvokeResult<F, Args...>::invoke(std::forward<F>(f), std::forward<Args>(args)...);
|
||||
}
|
||||
#else
|
||||
using std::invoke;
|
||||
#endif
|
||||
} // Namespace "detail"
|
||||
} // Namespace "mingw_stdthread"
|
||||
|
||||
#endif
|
||||
500
ptt_talk_src/mingw_tread/mingw.mutex.h
Normal file
500
ptt_talk_src/mingw_tread/mingw.mutex.h
Normal file
@ -0,0 +1,500 @@
|
||||
/**
|
||||
* @file mingw.mutex.h
|
||||
* @brief std::mutex et al implementation for MinGW
|
||||
** (c) 2013-2016 by Mega Limited, Auckland, New Zealand
|
||||
* @author Alexander Vassilev
|
||||
*
|
||||
* @copyright Simplified (2-clause) BSD License.
|
||||
* You should have received a copy of the license along with this
|
||||
* program.
|
||||
*
|
||||
* This code is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
* @note
|
||||
* This file may become part of the mingw-w64 runtime package. If/when this happens,
|
||||
* the appropriate license will be added, i.e. this code will become dual-licensed,
|
||||
* and the current BSD 2-clause license will stay.
|
||||
*/
|
||||
|
||||
#ifndef WIN32STDMUTEX_H
|
||||
#define WIN32STDMUTEX_H
|
||||
|
||||
#if !defined(__cplusplus) || (__cplusplus < 201103L)
|
||||
#error A C++11 compiler is required!
|
||||
#endif
|
||||
// Recursion checks on non-recursive locks have some performance penalty, and
|
||||
// the C++ standard does not mandate them. The user might want to explicitly
|
||||
// enable or disable such checks. If the user has no preference, enable such
|
||||
// checks in debug builds, but not in release builds.
|
||||
#ifdef STDMUTEX_RECURSION_CHECKS
|
||||
#elif defined(NDEBUG)
|
||||
#define STDMUTEX_RECURSION_CHECKS 0
|
||||
#else
|
||||
#define STDMUTEX_RECURSION_CHECKS 1
|
||||
#endif
|
||||
|
||||
#include <chrono>
|
||||
#include <system_error>
|
||||
#include <atomic>
|
||||
#include <mutex> //need for call_once()
|
||||
|
||||
#if STDMUTEX_RECURSION_CHECKS || !defined(NDEBUG)
|
||||
#include <cstdio>
|
||||
#endif
|
||||
|
||||
#include <sdkddkver.h> // Detect Windows version.
|
||||
|
||||
#if (defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR))
|
||||
#pragma message "The Windows API that MinGW-w32 provides is not fully compatible\
|
||||
with Microsoft's API. We'll try to work around this, but we can make no\
|
||||
guarantees. This problem does not exist in MinGW-w64."
|
||||
#include <windows.h> // No further granularity can be expected.
|
||||
#else
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
#include <processthreadsapi.h> // For GetCurrentThreadId
|
||||
#endif
|
||||
#include <synchapi.h> // For InitializeCriticalSection, etc.
|
||||
#include <errhandlingapi.h> // For GetLastError
|
||||
#include <handleapi.h>
|
||||
#endif
|
||||
|
||||
// Need for the implementation of invoke
|
||||
#include "mingw.invoke.h"
|
||||
|
||||
#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0501)
|
||||
#error To use the MinGW-std-threads library, you will need to define the macro _WIN32_WINNT to be 0x0501 (Windows XP) or higher.
|
||||
#endif
|
||||
|
||||
namespace mingw_stdthread
|
||||
{
|
||||
// The _NonRecursive class has mechanisms that do not play nice with direct
|
||||
// manipulation of the native handle. This forward declaration is part of
|
||||
// a friend class declaration.
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
namespace vista
|
||||
{
|
||||
class condition_variable;
|
||||
}
|
||||
#endif
|
||||
// To make this namespace equivalent to the thread-related subset of std,
|
||||
// pull in the classes and class templates supplied by std but not by this
|
||||
// implementation.
|
||||
using std::lock_guard;
|
||||
using std::unique_lock;
|
||||
using std::adopt_lock_t;
|
||||
using std::defer_lock_t;
|
||||
using std::try_to_lock_t;
|
||||
using std::adopt_lock;
|
||||
using std::defer_lock;
|
||||
using std::try_to_lock;
|
||||
|
||||
class recursive_mutex
|
||||
{
|
||||
CRITICAL_SECTION mHandle;
|
||||
public:
|
||||
typedef LPCRITICAL_SECTION native_handle_type;
|
||||
native_handle_type native_handle() {return &mHandle;}
|
||||
recursive_mutex() noexcept : mHandle()
|
||||
{
|
||||
InitializeCriticalSection(&mHandle);
|
||||
}
|
||||
recursive_mutex (const recursive_mutex&) = delete;
|
||||
recursive_mutex& operator=(const recursive_mutex&) = delete;
|
||||
~recursive_mutex() noexcept
|
||||
{
|
||||
DeleteCriticalSection(&mHandle);
|
||||
}
|
||||
void lock()
|
||||
{
|
||||
EnterCriticalSection(&mHandle);
|
||||
}
|
||||
void unlock()
|
||||
{
|
||||
LeaveCriticalSection(&mHandle);
|
||||
}
|
||||
bool try_lock()
|
||||
{
|
||||
return (TryEnterCriticalSection(&mHandle)!=0);
|
||||
}
|
||||
};
|
||||
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
struct _OwnerThread
|
||||
{
|
||||
// If this is to be read before locking, then the owner-thread variable must
|
||||
// be atomic to prevent a torn read from spuriously causing errors.
|
||||
std::atomic<DWORD> mOwnerThread;
|
||||
constexpr _OwnerThread () noexcept : mOwnerThread(0) {}
|
||||
static void on_deadlock (void)
|
||||
{
|
||||
using namespace std;
|
||||
fprintf(stderr, "FATAL: Recursive locking of non-recursive mutex\
|
||||
detected. Throwing system exception\n");
|
||||
fflush(stderr);
|
||||
throw system_error(make_error_code(errc::resource_deadlock_would_occur));
|
||||
}
|
||||
DWORD checkOwnerBeforeLock() const
|
||||
{
|
||||
DWORD self = GetCurrentThreadId();
|
||||
if (mOwnerThread.load(std::memory_order_relaxed) == self)
|
||||
on_deadlock();
|
||||
return self;
|
||||
}
|
||||
void setOwnerAfterLock(DWORD id)
|
||||
{
|
||||
mOwnerThread.store(id, std::memory_order_relaxed);
|
||||
}
|
||||
void checkSetOwnerBeforeUnlock()
|
||||
{
|
||||
DWORD self = GetCurrentThreadId();
|
||||
if (mOwnerThread.load(std::memory_order_relaxed) != self)
|
||||
on_deadlock();
|
||||
mOwnerThread.store(0, std::memory_order_relaxed);
|
||||
}
|
||||
};
|
||||
#endif
|
||||
|
||||
// Though the Slim Reader-Writer (SRW) locks used here are not complete until
|
||||
// Windows 7, implementing partial functionality in Vista will simplify the
|
||||
// interaction with condition variables.
|
||||
|
||||
//Define SRWLOCK_INIT.
|
||||
|
||||
#if !defined(SRWLOCK_INIT)
|
||||
#pragma message "SRWLOCK_INIT macro is not defined. Defining automatically."
|
||||
#define SRWLOCK_INIT {0}
|
||||
#endif
|
||||
|
||||
#if defined(_WIN32) && (WINVER >= _WIN32_WINNT_VISTA)
|
||||
namespace windows7
|
||||
{
|
||||
class mutex
|
||||
{
|
||||
SRWLOCK mHandle;
|
||||
// Track locking thread for error checking.
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
friend class vista::condition_variable;
|
||||
_OwnerThread mOwnerThread {};
|
||||
#endif
|
||||
public:
|
||||
typedef PSRWLOCK native_handle_type;
|
||||
#pragma GCC diagnostic push
|
||||
#pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant"
|
||||
constexpr mutex () noexcept : mHandle(SRWLOCK_INIT) { }
|
||||
#pragma GCC diagnostic pop
|
||||
mutex (const mutex&) = delete;
|
||||
mutex & operator= (const mutex&) = delete;
|
||||
void lock (void)
|
||||
{
|
||||
// Note: Undefined behavior if called recursively.
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
DWORD self = mOwnerThread.checkOwnerBeforeLock();
|
||||
#endif
|
||||
AcquireSRWLockExclusive(&mHandle);
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
mOwnerThread.setOwnerAfterLock(self);
|
||||
#endif
|
||||
}
|
||||
void unlock (void)
|
||||
{
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
mOwnerThread.checkSetOwnerBeforeUnlock();
|
||||
#endif
|
||||
ReleaseSRWLockExclusive(&mHandle);
|
||||
}
|
||||
// TryAcquireSRW functions are a Windows 7 feature.
|
||||
#if (WINVER >= _WIN32_WINNT_WIN7)
|
||||
bool try_lock (void)
|
||||
{
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
DWORD self = mOwnerThread.checkOwnerBeforeLock();
|
||||
#endif
|
||||
BOOL ret = TryAcquireSRWLockExclusive(&mHandle);
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
if (ret)
|
||||
mOwnerThread.setOwnerAfterLock(self);
|
||||
#endif
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
native_handle_type native_handle (void)
|
||||
{
|
||||
return &mHandle;
|
||||
}
|
||||
};
|
||||
} // Namespace windows7
|
||||
#endif // Compiling for Vista
|
||||
namespace xp
|
||||
{
|
||||
class mutex
|
||||
{
|
||||
CRITICAL_SECTION mHandle;
|
||||
std::atomic_uchar mState;
|
||||
// Track locking thread for error checking.
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
friend class vista::condition_variable;
|
||||
_OwnerThread mOwnerThread {};
|
||||
#endif
|
||||
public:
|
||||
typedef PCRITICAL_SECTION native_handle_type;
|
||||
constexpr mutex () noexcept : mHandle(), mState(2) { }
|
||||
mutex (const mutex&) = delete;
|
||||
mutex & operator= (const mutex&) = delete;
|
||||
~mutex() noexcept
|
||||
{
|
||||
// Undefined behavior if the mutex is held (locked) by any thread.
|
||||
// Undefined behavior if a thread terminates while holding ownership of the
|
||||
// mutex.
|
||||
DeleteCriticalSection(&mHandle);
|
||||
}
|
||||
void lock (void)
|
||||
{
|
||||
unsigned char state = mState.load(std::memory_order_acquire);
|
||||
while (state) {
|
||||
if ((state == 2) && mState.compare_exchange_weak(state, 1, std::memory_order_acquire))
|
||||
{
|
||||
InitializeCriticalSection(&mHandle);
|
||||
mState.store(0, std::memory_order_release);
|
||||
break;
|
||||
}
|
||||
if (state == 1)
|
||||
{
|
||||
Sleep(0);
|
||||
state = mState.load(std::memory_order_acquire);
|
||||
}
|
||||
}
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
DWORD self = mOwnerThread.checkOwnerBeforeLock();
|
||||
#endif
|
||||
EnterCriticalSection(&mHandle);
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
mOwnerThread.setOwnerAfterLock(self);
|
||||
#endif
|
||||
}
|
||||
void unlock (void)
|
||||
{
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
mOwnerThread.checkSetOwnerBeforeUnlock();
|
||||
#endif
|
||||
LeaveCriticalSection(&mHandle);
|
||||
}
|
||||
bool try_lock (void)
|
||||
{
|
||||
unsigned char state = mState.load(std::memory_order_acquire);
|
||||
if ((state == 2) && mState.compare_exchange_strong(state, 1, std::memory_order_acquire))
|
||||
{
|
||||
InitializeCriticalSection(&mHandle);
|
||||
mState.store(0, std::memory_order_release);
|
||||
}
|
||||
if (state == 1)
|
||||
return false;
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
DWORD self = mOwnerThread.checkOwnerBeforeLock();
|
||||
#endif
|
||||
BOOL ret = TryEnterCriticalSection(&mHandle);
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
if (ret)
|
||||
mOwnerThread.setOwnerAfterLock(self);
|
||||
#endif
|
||||
return ret;
|
||||
}
|
||||
native_handle_type native_handle (void)
|
||||
{
|
||||
return &mHandle;
|
||||
}
|
||||
};
|
||||
} // Namespace "xp"
|
||||
#if (WINVER >= _WIN32_WINNT_WIN7)
|
||||
using windows7::mutex;
|
||||
#else
|
||||
using xp::mutex;
|
||||
#endif
|
||||
|
||||
class recursive_timed_mutex
|
||||
{
|
||||
static constexpr DWORD kWaitAbandoned = 0x00000080l;
|
||||
static constexpr DWORD kWaitObject0 = 0x00000000l;
|
||||
static constexpr DWORD kInfinite = 0xffffffffl;
|
||||
inline bool try_lock_internal (DWORD ms) noexcept
|
||||
{
|
||||
DWORD ret = WaitForSingleObject(mHandle, ms);
|
||||
#ifndef NDEBUG
|
||||
if (ret == kWaitAbandoned)
|
||||
{
|
||||
using namespace std;
|
||||
fprintf(stderr, "FATAL: Thread terminated while holding a mutex.");
|
||||
terminate();
|
||||
}
|
||||
#endif
|
||||
return (ret == kWaitObject0) || (ret == kWaitAbandoned);
|
||||
}
|
||||
protected:
|
||||
HANDLE mHandle;
|
||||
// Track locking thread for error checking of non-recursive timed_mutex. For
|
||||
// standard compliance, this must be defined in same class and at the same
|
||||
// access-control level as every other variable in the timed_mutex.
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
friend class vista::condition_variable;
|
||||
_OwnerThread mOwnerThread {};
|
||||
#endif
|
||||
public:
|
||||
typedef HANDLE native_handle_type;
|
||||
native_handle_type native_handle() const {return mHandle;}
|
||||
recursive_timed_mutex(const recursive_timed_mutex&) = delete;
|
||||
recursive_timed_mutex& operator=(const recursive_timed_mutex&) = delete;
|
||||
recursive_timed_mutex(): mHandle(CreateMutex(NULL, FALSE, NULL)) {}
|
||||
~recursive_timed_mutex()
|
||||
{
|
||||
CloseHandle(mHandle);
|
||||
}
|
||||
void lock()
|
||||
{
|
||||
DWORD ret = WaitForSingleObject(mHandle, kInfinite);
|
||||
// If (ret == WAIT_ABANDONED), then the thread that held ownership was
|
||||
// terminated. Behavior is undefined, but Windows will pass ownership to this
|
||||
// thread.
|
||||
#ifndef NDEBUG
|
||||
if (ret == kWaitAbandoned)
|
||||
{
|
||||
using namespace std;
|
||||
fprintf(stderr, "FATAL: Thread terminated while holding a mutex.");
|
||||
terminate();
|
||||
}
|
||||
#endif
|
||||
if ((ret != kWaitObject0) && (ret != kWaitAbandoned))
|
||||
{
|
||||
throw std::system_error(GetLastError(), std::system_category());
|
||||
}
|
||||
}
|
||||
void unlock()
|
||||
{
|
||||
if (!ReleaseMutex(mHandle))
|
||||
throw std::system_error(GetLastError(), std::system_category());
|
||||
}
|
||||
bool try_lock()
|
||||
{
|
||||
return try_lock_internal(0);
|
||||
}
|
||||
template <class Rep, class Period>
|
||||
bool try_lock_for(const std::chrono::duration<Rep,Period>& dur)
|
||||
{
|
||||
using namespace std::chrono;
|
||||
auto timeout = duration_cast<milliseconds>(dur).count();
|
||||
while (timeout > 0)
|
||||
{
|
||||
constexpr auto kMaxStep = static_cast<decltype(timeout)>(kInfinite-1);
|
||||
auto step = (timeout < kMaxStep) ? timeout : kMaxStep;
|
||||
if (try_lock_internal(static_cast<DWORD>(step)))
|
||||
return true;
|
||||
timeout -= step;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
template <class Clock, class Duration>
|
||||
bool try_lock_until(const std::chrono::time_point<Clock,Duration>& timeout_time)
|
||||
{
|
||||
return try_lock_for(timeout_time - Clock::now());
|
||||
}
|
||||
};
|
||||
|
||||
// Override if, and only if, it is necessary for error-checking.
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
class timed_mutex: recursive_timed_mutex
|
||||
{
|
||||
public:
|
||||
timed_mutex() = default;
|
||||
timed_mutex(const timed_mutex&) = delete;
|
||||
timed_mutex& operator=(const timed_mutex&) = delete;
|
||||
void lock()
|
||||
{
|
||||
DWORD self = mOwnerThread.checkOwnerBeforeLock();
|
||||
recursive_timed_mutex::lock();
|
||||
mOwnerThread.setOwnerAfterLock(self);
|
||||
}
|
||||
void unlock()
|
||||
{
|
||||
mOwnerThread.checkSetOwnerBeforeUnlock();
|
||||
recursive_timed_mutex::unlock();
|
||||
}
|
||||
template <class Rep, class Period>
|
||||
bool try_lock_for(const std::chrono::duration<Rep,Period>& dur)
|
||||
{
|
||||
DWORD self = mOwnerThread.checkOwnerBeforeLock();
|
||||
bool ret = recursive_timed_mutex::try_lock_for(dur);
|
||||
if (ret)
|
||||
mOwnerThread.setOwnerAfterLock(self);
|
||||
return ret;
|
||||
}
|
||||
template <class Clock, class Duration>
|
||||
bool try_lock_until(const std::chrono::time_point<Clock,Duration>& timeout_time)
|
||||
{
|
||||
return try_lock_for(timeout_time - Clock::now());
|
||||
}
|
||||
bool try_lock ()
|
||||
{
|
||||
return try_lock_for(std::chrono::milliseconds(0));
|
||||
}
|
||||
};
|
||||
#else
|
||||
typedef recursive_timed_mutex timed_mutex;
|
||||
#endif
|
||||
|
||||
class once_flag
|
||||
{
|
||||
// When available, the SRW-based mutexes should be faster than the
|
||||
// CriticalSection-based mutexes. Only try_lock will be unavailable in Vista,
|
||||
// and try_lock is not used by once_flag.
|
||||
#if (_WIN32_WINNT == _WIN32_WINNT_VISTA)
|
||||
windows7::mutex mMutex;
|
||||
#else
|
||||
mutex mMutex;
|
||||
#endif
|
||||
std::atomic_bool mHasRun;
|
||||
once_flag(const once_flag&) = delete;
|
||||
once_flag& operator=(const once_flag&) = delete;
|
||||
template<class Callable, class... Args>
|
||||
friend void call_once(once_flag& once, Callable&& f, Args&&... args);
|
||||
public:
|
||||
constexpr once_flag() noexcept: mMutex(), mHasRun(false) {}
|
||||
};
|
||||
|
||||
template<class Callable, class... Args>
|
||||
void call_once(once_flag& flag, Callable&& func, Args&&... args)
|
||||
{
|
||||
if (flag.mHasRun.load(std::memory_order_acquire))
|
||||
return;
|
||||
lock_guard<decltype(flag.mMutex)> lock(flag.mMutex);
|
||||
if (flag.mHasRun.load(std::memory_order_relaxed))
|
||||
return;
|
||||
detail::invoke(std::forward<Callable>(func),std::forward<Args>(args)...);
|
||||
flag.mHasRun.store(true, std::memory_order_release);
|
||||
}
|
||||
} // Namespace mingw_stdthread
|
||||
|
||||
// Push objects into std, but only if they are not already there.
|
||||
namespace std
|
||||
{
|
||||
// Because of quirks of the compiler, the common "using namespace std;"
|
||||
// directive would flatten the namespaces and introduce ambiguity where there
|
||||
// was none. Direct specification (std::), however, would be unaffected.
|
||||
// Take the safe option, and include only in the presence of MinGW's win32
|
||||
// implementation.
|
||||
#if defined(__MINGW32__ ) && !defined(_GLIBCXX_HAS_GTHREADS)
|
||||
using mingw_stdthread::recursive_mutex;
|
||||
using mingw_stdthread::mutex;
|
||||
using mingw_stdthread::recursive_timed_mutex;
|
||||
using mingw_stdthread::timed_mutex;
|
||||
using mingw_stdthread::once_flag;
|
||||
using mingw_stdthread::call_once;
|
||||
#elif !defined(MINGW_STDTHREAD_REDUNDANCY_WARNING) // Skip repetition
|
||||
#define MINGW_STDTHREAD_REDUNDANCY_WARNING
|
||||
#pragma message "This version of MinGW seems to include a win32 port of\
|
||||
pthreads, and probably already has C++11 std threading classes implemented,\
|
||||
based on pthreads. These classes, found in namespace std, are not overridden\
|
||||
by the mingw-std-thread library. If you would still like to use this\
|
||||
implementation (as it is more lightweight), use the classes provided in\
|
||||
namespace mingw_stdthread."
|
||||
#endif
|
||||
}
|
||||
#endif // WIN32STDMUTEX_H
|
||||
503
ptt_talk_src/mingw_tread/mingw.shared_mutex.h
Normal file
503
ptt_talk_src/mingw_tread/mingw.shared_mutex.h
Normal file
@ -0,0 +1,503 @@
|
||||
/// \file mingw.shared_mutex.h
|
||||
/// \brief Standard-compliant shared_mutex for MinGW
|
||||
///
|
||||
/// (c) 2017 by Nathaniel J. McClatchey, Athens OH, United States
|
||||
/// \author Nathaniel J. McClatchey
|
||||
///
|
||||
/// \copyright Simplified (2-clause) BSD License.
|
||||
///
|
||||
/// \note This file may become part of the mingw-w64 runtime package. If/when
|
||||
/// this happens, the appropriate license will be added, i.e. this code will
|
||||
/// become dual-licensed, and the current BSD 2-clause license will stay.
|
||||
/// \note Target Windows version is determined by WINVER, which is determined in
|
||||
/// <windows.h> from _WIN32_WINNT, which can itself be set by the user.
|
||||
|
||||
// Notes on the namespaces:
|
||||
// - The implementation can be accessed directly in the namespace
|
||||
// mingw_stdthread.
|
||||
// - Objects will be brought into namespace std by a using directive. This
|
||||
// will cause objects declared in std (such as MinGW's implementation) to
|
||||
// hide this implementation's definitions.
|
||||
// - To avoid poluting the namespace with implementation details, all objects
|
||||
// to be pushed into std will be placed in mingw_stdthread::visible.
|
||||
// The end result is that if MinGW supplies an object, it is automatically
|
||||
// used. If MinGW does not supply an object, this implementation's version will
|
||||
// instead be used.
|
||||
|
||||
#ifndef MINGW_SHARED_MUTEX_H_
|
||||
#define MINGW_SHARED_MUTEX_H_
|
||||
|
||||
#if !defined(__cplusplus) || (__cplusplus < 201103L)
|
||||
#error A C++11 compiler is required!
|
||||
#endif
|
||||
|
||||
#include <cassert>
|
||||
// For descriptive errors.
|
||||
#include <system_error>
|
||||
// Implementing a shared_mutex without OS support will require atomic read-
|
||||
// modify-write capacity.
|
||||
#include <atomic>
|
||||
// For timing in shared_lock and shared_timed_mutex.
|
||||
#include <chrono>
|
||||
#include <limits>
|
||||
|
||||
// Use MinGW's shared_lock class template, if it's available. Requires C++14.
|
||||
// If unavailable (eg. because this library is being used in C++11), then an
|
||||
// implementation of shared_lock is provided by this header.
|
||||
#if (__cplusplus >= 201402L)
|
||||
#include <shared_mutex>
|
||||
#endif
|
||||
|
||||
// For defer_lock_t, adopt_lock_t, and try_to_lock_t
|
||||
#include "mingw.mutex.h"
|
||||
// For this_thread::yield.
|
||||
//#include "mingw.thread.h"
|
||||
|
||||
// Might be able to use native Slim Reader-Writer (SRW) locks.
|
||||
#ifdef _WIN32
|
||||
#include <sdkddkver.h> // Detect Windows version.
|
||||
#if (defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR))
|
||||
#pragma message "The Windows API that MinGW-w32 provides is not fully compatible\
|
||||
with Microsoft's API. We'll try to work around this, but we can make no\
|
||||
guarantees. This problem does not exist in MinGW-w64."
|
||||
#include <windows.h> // No further granularity can be expected.
|
||||
#else
|
||||
#include <synchapi.h>
|
||||
#endif
|
||||
#endif
|
||||
|
||||
namespace mingw_stdthread
|
||||
{
|
||||
// Define a portable atomics-based shared_mutex
|
||||
namespace portable
|
||||
{
|
||||
class shared_mutex
|
||||
{
|
||||
typedef uint_fast16_t counter_type;
|
||||
std::atomic<counter_type> mCounter {0};
|
||||
static constexpr counter_type kWriteBit = 1 << (std::numeric_limits<counter_type>::digits - 1);
|
||||
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
// Runtime checker for verifying owner threads. Note: Exclusive mode only.
|
||||
_OwnerThread mOwnerThread {};
|
||||
#endif
|
||||
public:
|
||||
typedef shared_mutex * native_handle_type;
|
||||
|
||||
shared_mutex () = default;
|
||||
|
||||
// No form of copying or moving should be allowed.
|
||||
shared_mutex (const shared_mutex&) = delete;
|
||||
shared_mutex & operator= (const shared_mutex&) = delete;
|
||||
|
||||
~shared_mutex ()
|
||||
{
|
||||
// Terminate if someone tries to destroy an owned mutex.
|
||||
assert(mCounter.load(std::memory_order_relaxed) == 0);
|
||||
}
|
||||
|
||||
void lock_shared (void)
|
||||
{
|
||||
counter_type expected = mCounter.load(std::memory_order_relaxed);
|
||||
do
|
||||
{
|
||||
// Delay if writing or if too many readers are attempting to read.
|
||||
if (expected >= kWriteBit - 1)
|
||||
{
|
||||
using namespace std;
|
||||
expected = mCounter.load(std::memory_order_relaxed);
|
||||
continue;
|
||||
}
|
||||
if (mCounter.compare_exchange_weak(expected,
|
||||
static_cast<counter_type>(expected + 1),
|
||||
std::memory_order_acquire,
|
||||
std::memory_order_relaxed))
|
||||
break;
|
||||
}
|
||||
while (true);
|
||||
}
|
||||
|
||||
bool try_lock_shared (void)
|
||||
{
|
||||
counter_type expected = mCounter.load(std::memory_order_relaxed) & static_cast<counter_type>(~kWriteBit);
|
||||
if (expected + 1 == kWriteBit)
|
||||
return false;
|
||||
else
|
||||
return mCounter.compare_exchange_strong( expected,
|
||||
static_cast<counter_type>(expected + 1),
|
||||
std::memory_order_acquire,
|
||||
std::memory_order_relaxed);
|
||||
}
|
||||
|
||||
void unlock_shared (void)
|
||||
{
|
||||
using namespace std;
|
||||
#ifndef NDEBUG
|
||||
if (!(mCounter.fetch_sub(1, memory_order_release) & static_cast<counter_type>(~kWriteBit)))
|
||||
throw system_error(make_error_code(errc::operation_not_permitted));
|
||||
#else
|
||||
mCounter.fetch_sub(1, memory_order_release);
|
||||
#endif
|
||||
}
|
||||
|
||||
// Behavior is undefined if a lock was previously acquired.
|
||||
void lock (void)
|
||||
{
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
DWORD self = mOwnerThread.checkOwnerBeforeLock();
|
||||
#endif
|
||||
using namespace std;
|
||||
// Might be able to use relaxed memory order...
|
||||
// Wait for the write-lock to be unlocked, then claim the write slot.
|
||||
counter_type current;
|
||||
while ((current = mCounter.fetch_or(kWriteBit, std::memory_order_acquire)) & kWriteBit);
|
||||
//this_thread::yield();
|
||||
// Wait for readers to finish up.
|
||||
while (current != kWriteBit)
|
||||
{
|
||||
//this_thread::yield();
|
||||
current = mCounter.load(std::memory_order_acquire);
|
||||
}
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
mOwnerThread.setOwnerAfterLock(self);
|
||||
#endif
|
||||
}
|
||||
|
||||
bool try_lock (void)
|
||||
{
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
DWORD self = mOwnerThread.checkOwnerBeforeLock();
|
||||
#endif
|
||||
counter_type expected = 0;
|
||||
bool ret = mCounter.compare_exchange_strong(expected, kWriteBit,
|
||||
std::memory_order_acquire,
|
||||
std::memory_order_relaxed);
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
if (ret)
|
||||
mOwnerThread.setOwnerAfterLock(self);
|
||||
#endif
|
||||
return ret;
|
||||
}
|
||||
|
||||
void unlock (void)
|
||||
{
|
||||
#if STDMUTEX_RECURSION_CHECKS
|
||||
mOwnerThread.checkSetOwnerBeforeUnlock();
|
||||
#endif
|
||||
using namespace std;
|
||||
#ifndef NDEBUG
|
||||
if (mCounter.load(memory_order_relaxed) != kWriteBit)
|
||||
throw system_error(make_error_code(errc::operation_not_permitted));
|
||||
#endif
|
||||
mCounter.store(0, memory_order_release);
|
||||
}
|
||||
|
||||
native_handle_type native_handle (void)
|
||||
{
|
||||
return this;
|
||||
}
|
||||
};
|
||||
|
||||
} // Namespace portable
|
||||
|
||||
// The native shared_mutex implementation primarily uses features of Windows
|
||||
// Vista, but the features used for try_lock and try_lock_shared were not
|
||||
// introduced until Windows 7. To allow limited use while compiling for Vista,
|
||||
// I define the class without try_* functions in that case.
|
||||
// Only fully-featured implementations will be placed into namespace std.
|
||||
#if defined(_WIN32) && (WINVER >= _WIN32_WINNT_VISTA)
|
||||
namespace vista
|
||||
{
|
||||
class condition_variable_any;
|
||||
}
|
||||
|
||||
namespace windows7
|
||||
{
|
||||
// We already #include "mingw.mutex.h". May as well reduce redundancy.
|
||||
class shared_mutex : windows7::mutex
|
||||
{
|
||||
// Allow condition_variable_any (and only condition_variable_any) to treat a
|
||||
// shared_mutex as its base class.
|
||||
friend class vista::condition_variable_any;
|
||||
public:
|
||||
using windows7::mutex::native_handle_type;
|
||||
using windows7::mutex::lock;
|
||||
using windows7::mutex::unlock;
|
||||
using windows7::mutex::native_handle;
|
||||
|
||||
void lock_shared (void)
|
||||
{
|
||||
AcquireSRWLockShared(native_handle());
|
||||
}
|
||||
|
||||
void unlock_shared (void)
|
||||
{
|
||||
ReleaseSRWLockShared(native_handle());
|
||||
}
|
||||
|
||||
// TryAcquireSRW functions are a Windows 7 feature.
|
||||
#if (WINVER >= _WIN32_WINNT_WIN7)
|
||||
bool try_lock_shared (void)
|
||||
{
|
||||
return TryAcquireSRWLockShared(native_handle()) != 0;
|
||||
}
|
||||
|
||||
using windows7::mutex::try_lock;
|
||||
#endif
|
||||
};
|
||||
|
||||
} // Namespace windows7
|
||||
#endif // Compiling for Vista
|
||||
#if (defined(_WIN32) && (WINVER >= _WIN32_WINNT_WIN7))
|
||||
using windows7::shared_mutex;
|
||||
#else
|
||||
using portable::shared_mutex;
|
||||
#endif
|
||||
|
||||
class shared_timed_mutex : shared_mutex
|
||||
{
|
||||
typedef shared_mutex Base;
|
||||
public:
|
||||
using Base::lock;
|
||||
using Base::try_lock;
|
||||
using Base::unlock;
|
||||
using Base::lock_shared;
|
||||
using Base::try_lock_shared;
|
||||
using Base::unlock_shared;
|
||||
|
||||
template< class Clock, class Duration >
|
||||
bool try_lock_until ( const std::chrono::time_point<Clock,Duration>& cutoff )
|
||||
{
|
||||
do
|
||||
{
|
||||
if (try_lock())
|
||||
return true;
|
||||
}
|
||||
while (std::chrono::steady_clock::now() < cutoff);
|
||||
return false;
|
||||
}
|
||||
|
||||
template< class Rep, class Period >
|
||||
bool try_lock_for (const std::chrono::duration<Rep,Period>& rel_time)
|
||||
{
|
||||
return try_lock_until(std::chrono::steady_clock::now() + rel_time);
|
||||
}
|
||||
|
||||
template< class Clock, class Duration >
|
||||
bool try_lock_shared_until ( const std::chrono::time_point<Clock,Duration>& cutoff )
|
||||
{
|
||||
do
|
||||
{
|
||||
if (try_lock_shared())
|
||||
return true;
|
||||
}
|
||||
while (std::chrono::steady_clock::now() < cutoff);
|
||||
return false;
|
||||
}
|
||||
|
||||
template< class Rep, class Period >
|
||||
bool try_lock_shared_for (const std::chrono::duration<Rep,Period>& rel_time)
|
||||
{
|
||||
return try_lock_shared_until(std::chrono::steady_clock::now() + rel_time);
|
||||
}
|
||||
};
|
||||
|
||||
#if __cplusplus >= 201402L
|
||||
using std::shared_lock;
|
||||
#else
|
||||
// If not supplied by shared_mutex (eg. because C++14 is not supported), I
|
||||
// supply the various helper classes that the header should have defined.
|
||||
template<class Mutex>
|
||||
class shared_lock
|
||||
{
|
||||
Mutex * mMutex;
|
||||
bool mOwns;
|
||||
// Reduce code redundancy
|
||||
void verify_lockable (void)
|
||||
{
|
||||
using namespace std;
|
||||
if (mMutex == nullptr)
|
||||
throw system_error(make_error_code(errc::operation_not_permitted));
|
||||
if (mOwns)
|
||||
throw system_error(make_error_code(errc::resource_deadlock_would_occur));
|
||||
}
|
||||
public:
|
||||
typedef Mutex mutex_type;
|
||||
|
||||
shared_lock (void) noexcept
|
||||
: mMutex(nullptr), mOwns(false)
|
||||
{
|
||||
}
|
||||
|
||||
shared_lock (shared_lock<Mutex> && other) noexcept
|
||||
: mMutex(other.mutex_), mOwns(other.owns_)
|
||||
{
|
||||
other.mMutex = nullptr;
|
||||
other.mOwns = false;
|
||||
}
|
||||
|
||||
explicit shared_lock (mutex_type & m)
|
||||
: mMutex(&m), mOwns(true)
|
||||
{
|
||||
mMutex->lock_shared();
|
||||
}
|
||||
|
||||
shared_lock (mutex_type & m, defer_lock_t) noexcept
|
||||
: mMutex(&m), mOwns(false)
|
||||
{
|
||||
}
|
||||
|
||||
shared_lock (mutex_type & m, adopt_lock_t)
|
||||
: mMutex(&m), mOwns(true)
|
||||
{
|
||||
}
|
||||
|
||||
shared_lock (mutex_type & m, try_to_lock_t)
|
||||
: mMutex(&m), mOwns(m.try_lock_shared())
|
||||
{
|
||||
}
|
||||
|
||||
template< class Rep, class Period >
|
||||
shared_lock( mutex_type& m, const std::chrono::duration<Rep,Period>& timeout_duration )
|
||||
: mMutex(&m), mOwns(m.try_lock_shared_for(timeout_duration))
|
||||
{
|
||||
}
|
||||
|
||||
template< class Clock, class Duration >
|
||||
shared_lock( mutex_type& m, const std::chrono::time_point<Clock,Duration>& timeout_time )
|
||||
: mMutex(&m), mOwns(m.try_lock_shared_until(timeout_time))
|
||||
{
|
||||
}
|
||||
|
||||
shared_lock& operator= (shared_lock<Mutex> && other) noexcept
|
||||
{
|
||||
if (&other != this)
|
||||
{
|
||||
if (mOwns)
|
||||
mMutex->unlock_shared();
|
||||
mMutex = other.mMutex;
|
||||
mOwns = other.mOwns;
|
||||
other.mMutex = nullptr;
|
||||
other.mOwns = false;
|
||||
}
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
~shared_lock (void)
|
||||
{
|
||||
if (mOwns)
|
||||
mMutex->unlock_shared();
|
||||
}
|
||||
|
||||
shared_lock (const shared_lock<Mutex> &) = delete;
|
||||
shared_lock& operator= (const shared_lock<Mutex> &) = delete;
|
||||
|
||||
// Shared locking
|
||||
void lock (void)
|
||||
{
|
||||
verify_lockable();
|
||||
mMutex->lock_shared();
|
||||
mOwns = true;
|
||||
}
|
||||
|
||||
bool try_lock (void)
|
||||
{
|
||||
verify_lockable();
|
||||
mOwns = mMutex->try_lock_shared();
|
||||
return mOwns;
|
||||
}
|
||||
|
||||
template< class Clock, class Duration >
|
||||
bool try_lock_until( const std::chrono::time_point<Clock,Duration>& cutoff )
|
||||
{
|
||||
verify_lockable();
|
||||
do
|
||||
{
|
||||
mOwns = mMutex->try_lock_shared();
|
||||
if (mOwns)
|
||||
return mOwns;
|
||||
}
|
||||
while (std::chrono::steady_clock::now() < cutoff);
|
||||
return false;
|
||||
}
|
||||
|
||||
template< class Rep, class Period >
|
||||
bool try_lock_for (const std::chrono::duration<Rep,Period>& rel_time)
|
||||
{
|
||||
return try_lock_until(std::chrono::steady_clock::now() + rel_time);
|
||||
}
|
||||
|
||||
void unlock (void)
|
||||
{
|
||||
using namespace std;
|
||||
if (!mOwns)
|
||||
throw system_error(make_error_code(errc::operation_not_permitted));
|
||||
mMutex->unlock_shared();
|
||||
mOwns = false;
|
||||
}
|
||||
|
||||
// Modifiers
|
||||
void swap (shared_lock<Mutex> & other) noexcept
|
||||
{
|
||||
using namespace std;
|
||||
swap(mMutex, other.mMutex);
|
||||
swap(mOwns, other.mOwns);
|
||||
}
|
||||
|
||||
mutex_type * release (void) noexcept
|
||||
{
|
||||
mutex_type * ptr = mMutex;
|
||||
mMutex = nullptr;
|
||||
mOwns = false;
|
||||
return ptr;
|
||||
}
|
||||
// Observers
|
||||
mutex_type * mutex (void) const noexcept
|
||||
{
|
||||
return mMutex;
|
||||
}
|
||||
|
||||
bool owns_lock (void) const noexcept
|
||||
{
|
||||
return mOwns;
|
||||
}
|
||||
|
||||
explicit operator bool () const noexcept
|
||||
{
|
||||
return owns_lock();
|
||||
}
|
||||
};
|
||||
|
||||
template< class Mutex >
|
||||
void swap( shared_lock<Mutex>& lhs, shared_lock<Mutex>& rhs ) noexcept
|
||||
{
|
||||
lhs.swap(rhs);
|
||||
}
|
||||
#endif // C++11
|
||||
} // Namespace mingw_stdthread
|
||||
|
||||
namespace std
|
||||
{
|
||||
// Because of quirks of the compiler, the common "using namespace std;"
|
||||
// directive would flatten the namespaces and introduce ambiguity where there
|
||||
// was none. Direct specification (std::), however, would be unaffected.
|
||||
// Take the safe option, and include only in the presence of MinGW's win32
|
||||
// implementation.
|
||||
#if (__cplusplus < 201703L) || (defined(__MINGW32__ ) && !defined(_GLIBCXX_HAS_GTHREADS))
|
||||
using mingw_stdthread::shared_mutex;
|
||||
#endif
|
||||
#if (__cplusplus < 201402L) || (defined(__MINGW32__ ) && !defined(_GLIBCXX_HAS_GTHREADS))
|
||||
using mingw_stdthread::shared_timed_mutex;
|
||||
using mingw_stdthread::shared_lock;
|
||||
#elif !defined(MINGW_STDTHREAD_REDUNDANCY_WARNING) // Skip repetition
|
||||
#define MINGW_STDTHREAD_REDUNDANCY_WARNING
|
||||
#pragma message "This version of MinGW seems to include a win32 port of\
|
||||
pthreads, and probably already has C++ std threading classes implemented,\
|
||||
based on pthreads. These classes, found in namespace std, are not overridden\
|
||||
by the mingw-std-thread library. If you would still like to use this\
|
||||
implementation (as it is more lightweight), use the classes provided in\
|
||||
namespace mingw_stdthread."
|
||||
#endif
|
||||
} // Namespace std
|
||||
#endif // MINGW_SHARED_MUTEX_H_
|
||||
360
ptt_talk_src/mingw_tread/mingw.thread.h
Normal file
360
ptt_talk_src/mingw_tread/mingw.thread.h
Normal file
@ -0,0 +1,360 @@
|
||||
/**
|
||||
* @file mingw.thread.h
|
||||
* @brief std::thread implementation for MinGW
|
||||
* (c) 2013-2016 by Mega Limited, Auckland, New Zealand
|
||||
* @author Alexander Vassilev
|
||||
*
|
||||
* @copyright Simplified (2-clause) BSD License.
|
||||
* You should have received a copy of the license along with this
|
||||
* program.
|
||||
*
|
||||
* This code is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
* @note
|
||||
* This file may become part of the mingw-w64 runtime package. If/when this happens,
|
||||
* the appropriate license will be added, i.e. this code will become dual-licensed,
|
||||
* and the current BSD 2-clause license will stay.
|
||||
*/
|
||||
|
||||
#ifndef WIN32STDTHREAD_H
|
||||
#define WIN32STDTHREAD_H
|
||||
|
||||
#if !defined(__cplusplus) || (__cplusplus < 201103L)
|
||||
#error A C++11 compiler is required!
|
||||
#endif
|
||||
|
||||
// Use the standard classes for std::, if available.
|
||||
#include <thread>
|
||||
|
||||
#include <cstddef> // For std::size_t
|
||||
#include <cerrno> // Detect error type.
|
||||
#include <exception> // For std::terminate
|
||||
#include <system_error> // For std::system_error
|
||||
#include <functional> // For std::hash
|
||||
#include <tuple> // For std::tuple
|
||||
#include <chrono> // For sleep timing.
|
||||
#include <memory> // For std::unique_ptr
|
||||
#include <iosfwd> // Stream output for thread ids.
|
||||
#include <utility> // For std::swap, std::forward
|
||||
|
||||
#include "mingw.invoke.h"
|
||||
|
||||
#if (defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR))
|
||||
#pragma message "The Windows API that MinGW-w32 provides is not fully compatible\
|
||||
with Microsoft's API. We'll try to work around this, but we can make no\
|
||||
guarantees. This problem does not exist in MinGW-w64."
|
||||
#include <windows.h> // No further granularity can be expected.
|
||||
#else
|
||||
#include <synchapi.h> // For WaitForSingleObject
|
||||
#include <handleapi.h> // For CloseHandle, etc.
|
||||
#include <sysinfoapi.h> // For GetNativeSystemInfo
|
||||
#include <processthreadsapi.h> // For GetCurrentThreadId
|
||||
#endif
|
||||
#include <process.h> // For _beginthreadex
|
||||
|
||||
#ifndef NDEBUG
|
||||
#include <cstdio>
|
||||
#endif
|
||||
|
||||
#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0501)
|
||||
#error To use the MinGW-std-threads library, you will need to define the macro _WIN32_WINNT to be 0x0501 (Windows XP) or higher.
|
||||
#endif
|
||||
|
||||
// Instead of INVALID_HANDLE_VALUE, _beginthreadex returns 0.
|
||||
namespace mingw_stdthread
|
||||
{
|
||||
namespace detail
|
||||
{
|
||||
template<std::size_t...>
|
||||
struct IntSeq {};
|
||||
|
||||
template<std::size_t N, std::size_t... S>
|
||||
struct GenIntSeq : GenIntSeq<N-1, N-1, S...> { };
|
||||
|
||||
template<std::size_t... S>
|
||||
struct GenIntSeq<0, S...> { typedef IntSeq<S...> type; };
|
||||
|
||||
// Use a template specialization to avoid relying on compiler optimization
|
||||
// when determining the parameter integer sequence.
|
||||
template<class Func, class T, typename... Args>
|
||||
class ThreadFuncCall;
|
||||
// We can't define the Call struct in the function - the standard forbids template methods in that case
|
||||
template<class Func, std::size_t... S, typename... Args>
|
||||
class ThreadFuncCall<Func, detail::IntSeq<S...>, Args...>
|
||||
{
|
||||
static_assert(sizeof...(S) == sizeof...(Args), "Args must match.");
|
||||
using Tuple = std::tuple<typename std::decay<Args>::type...>;
|
||||
typename std::decay<Func>::type mFunc;
|
||||
Tuple mArgs;
|
||||
|
||||
public:
|
||||
ThreadFuncCall(Func&& aFunc, Args&&... aArgs)
|
||||
: mFunc(std::forward<Func>(aFunc)),
|
||||
mArgs(std::forward<Args>(aArgs)...)
|
||||
{
|
||||
}
|
||||
|
||||
void callFunc()
|
||||
{
|
||||
detail::invoke(std::move(mFunc), std::move(std::get<S>(mArgs)) ...);
|
||||
}
|
||||
};
|
||||
|
||||
// Allow construction of threads without exposing implementation.
|
||||
class ThreadIdTool;
|
||||
} // Namespace "detail"
|
||||
|
||||
class thread
|
||||
{
|
||||
public:
|
||||
class id
|
||||
{
|
||||
DWORD mId = 0;
|
||||
friend class thread;
|
||||
friend class std::hash<id>;
|
||||
friend class detail::ThreadIdTool;
|
||||
explicit id(DWORD aId) noexcept : mId(aId){}
|
||||
public:
|
||||
id (void) noexcept = default;
|
||||
friend bool operator==(id x, id y) noexcept {return x.mId == y.mId; }
|
||||
friend bool operator!=(id x, id y) noexcept {return x.mId != y.mId; }
|
||||
friend bool operator< (id x, id y) noexcept {return x.mId < y.mId; }
|
||||
friend bool operator<=(id x, id y) noexcept {return x.mId <= y.mId; }
|
||||
friend bool operator> (id x, id y) noexcept {return x.mId > y.mId; }
|
||||
friend bool operator>=(id x, id y) noexcept {return x.mId >= y.mId; }
|
||||
|
||||
template<class _CharT, class _Traits>
|
||||
friend std::basic_ostream<_CharT, _Traits>&
|
||||
operator<<(std::basic_ostream<_CharT, _Traits>& __out, id __id)
|
||||
{
|
||||
if (__id.mId == 0)
|
||||
{
|
||||
return __out << "(invalid std::thread::id)";
|
||||
}
|
||||
else
|
||||
{
|
||||
return __out << __id.mId;
|
||||
}
|
||||
}
|
||||
};
|
||||
private:
|
||||
static constexpr HANDLE kInvalidHandle = nullptr;
|
||||
static constexpr DWORD kInfinite = 0xffffffffl;
|
||||
HANDLE mHandle;
|
||||
id mThreadId;
|
||||
|
||||
template <class Call>
|
||||
static unsigned __stdcall threadfunc(void* arg)
|
||||
{
|
||||
std::unique_ptr<Call> call(static_cast<Call*>(arg));
|
||||
call->callFunc();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static unsigned int _hardware_concurrency_helper() noexcept
|
||||
{
|
||||
SYSTEM_INFO sysinfo;
|
||||
// This is one of the few functions used by the library which has a nearly-
|
||||
// equivalent function defined in earlier versions of Windows. Include the
|
||||
// workaround, just as a reminder that it does exist.
|
||||
#if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0501)
|
||||
::GetNativeSystemInfo(&sysinfo);
|
||||
#else
|
||||
::GetSystemInfo(&sysinfo);
|
||||
#endif
|
||||
return sysinfo.dwNumberOfProcessors;
|
||||
}
|
||||
public:
|
||||
typedef HANDLE native_handle_type;
|
||||
id get_id() const noexcept {return mThreadId;}
|
||||
native_handle_type native_handle() const {return mHandle;}
|
||||
thread(): mHandle(kInvalidHandle), mThreadId(){}
|
||||
|
||||
thread(thread&& other)
|
||||
:mHandle(other.mHandle), mThreadId(other.mThreadId)
|
||||
{
|
||||
other.mHandle = kInvalidHandle;
|
||||
other.mThreadId = id{};
|
||||
}
|
||||
|
||||
thread(const thread &other)=delete;
|
||||
|
||||
template<class Func, typename... Args>
|
||||
explicit thread(Func&& func, Args&&... args) : mHandle(), mThreadId()
|
||||
{
|
||||
using ArgSequence = typename detail::GenIntSeq<sizeof...(Args)>::type;
|
||||
using Call = detail::ThreadFuncCall<Func, ArgSequence, Args...>;
|
||||
auto call = new Call(
|
||||
std::forward<Func>(func), std::forward<Args>(args)...);
|
||||
unsigned id_receiver;
|
||||
auto int_handle = _beginthreadex(NULL, 0, threadfunc<Call>,
|
||||
static_cast<LPVOID>(call), 0, &id_receiver);
|
||||
if (int_handle == 0)
|
||||
{
|
||||
mHandle = kInvalidHandle;
|
||||
int errnum = errno;
|
||||
delete call;
|
||||
// Note: Should only throw EINVAL, EAGAIN, EACCES
|
||||
throw std::system_error(errnum, std::generic_category());
|
||||
} else {
|
||||
mThreadId.mId = id_receiver;
|
||||
mHandle = reinterpret_cast<HANDLE>(int_handle);
|
||||
}
|
||||
}
|
||||
|
||||
bool joinable() const {return mHandle != kInvalidHandle;}
|
||||
|
||||
// Note: Due to lack of synchronization, this function has a race condition
|
||||
// if called concurrently, which leads to undefined behavior. The same applies
|
||||
// to all other member functions of this class, but this one is mentioned
|
||||
// explicitly.
|
||||
void join()
|
||||
{
|
||||
using namespace std;
|
||||
if (get_id() == id(GetCurrentThreadId()))
|
||||
throw system_error(make_error_code(errc::resource_deadlock_would_occur));
|
||||
if (mHandle == kInvalidHandle)
|
||||
throw system_error(make_error_code(errc::no_such_process));
|
||||
if (!joinable())
|
||||
throw system_error(make_error_code(errc::invalid_argument));
|
||||
WaitForSingleObject(mHandle, kInfinite);
|
||||
CloseHandle(mHandle);
|
||||
mHandle = kInvalidHandle;
|
||||
mThreadId = id{};
|
||||
}
|
||||
|
||||
~thread()
|
||||
{
|
||||
if (joinable())
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
std::printf("Error: Must join() or detach() a thread before \
|
||||
destroying it.\n");
|
||||
#endif
|
||||
std::terminate();
|
||||
}
|
||||
}
|
||||
thread& operator=(const thread&) = delete;
|
||||
thread& operator=(thread&& other) noexcept
|
||||
{
|
||||
if (joinable())
|
||||
{
|
||||
#ifndef NDEBUG
|
||||
std::printf("Error: Must join() or detach() a thread before \
|
||||
moving another thread to it.\n");
|
||||
#endif
|
||||
std::terminate();
|
||||
}
|
||||
swap(std::forward<thread>(other));
|
||||
return *this;
|
||||
}
|
||||
void swap(thread&& other) noexcept
|
||||
{
|
||||
std::swap(mHandle, other.mHandle);
|
||||
std::swap(mThreadId.mId, other.mThreadId.mId);
|
||||
}
|
||||
|
||||
static unsigned int hardware_concurrency() noexcept
|
||||
{
|
||||
static unsigned int cached = _hardware_concurrency_helper();
|
||||
return cached;
|
||||
}
|
||||
|
||||
void detach()
|
||||
{
|
||||
if (!joinable())
|
||||
{
|
||||
using namespace std;
|
||||
throw system_error(make_error_code(errc::invalid_argument));
|
||||
}
|
||||
if (mHandle != kInvalidHandle)
|
||||
{
|
||||
CloseHandle(mHandle);
|
||||
mHandle = kInvalidHandle;
|
||||
}
|
||||
mThreadId = id{};
|
||||
}
|
||||
};
|
||||
|
||||
namespace detail
|
||||
{
|
||||
class ThreadIdTool
|
||||
{
|
||||
public:
|
||||
static thread::id make_id (DWORD base_id) noexcept
|
||||
{
|
||||
return thread::id(base_id);
|
||||
}
|
||||
};
|
||||
} // Namespace "detail"
|
||||
|
||||
namespace this_thread
|
||||
{
|
||||
inline thread::id get_id() noexcept
|
||||
{
|
||||
return detail::ThreadIdTool::make_id(GetCurrentThreadId());
|
||||
}
|
||||
inline void yield() noexcept {Sleep(0);}
|
||||
template< class Rep, class Period >
|
||||
void sleep_for( const std::chrono::duration<Rep,Period>& sleep_duration)
|
||||
{
|
||||
static constexpr DWORD kInfinite = 0xffffffffl;
|
||||
using namespace std::chrono;
|
||||
using rep = milliseconds::rep;
|
||||
rep ms = duration_cast<milliseconds>(sleep_duration).count();
|
||||
while (ms > 0)
|
||||
{
|
||||
constexpr rep kMaxRep = static_cast<rep>(kInfinite - 1);
|
||||
auto sleepTime = (ms < kMaxRep) ? ms : kMaxRep;
|
||||
Sleep(static_cast<DWORD>(sleepTime));
|
||||
ms -= sleepTime;
|
||||
}
|
||||
}
|
||||
template <class Clock, class Duration>
|
||||
void sleep_until(const std::chrono::time_point<Clock,Duration>& sleep_time)
|
||||
{
|
||||
sleep_for(sleep_time-Clock::now());
|
||||
}
|
||||
}
|
||||
} // Namespace mingw_stdthread
|
||||
|
||||
namespace std
|
||||
{
|
||||
// Because of quirks of the compiler, the common "using namespace std;"
|
||||
// directive would flatten the namespaces and introduce ambiguity where there
|
||||
// was none. Direct specification (std::), however, would be unaffected.
|
||||
// Take the safe option, and include only in the presence of MinGW's win32
|
||||
// implementation.
|
||||
#if defined(__MINGW32__ ) && !defined(_GLIBCXX_HAS_GTHREADS)
|
||||
using mingw_stdthread::thread;
|
||||
// Remove ambiguity immediately, to avoid problems arising from the above.
|
||||
//using std::thread;
|
||||
namespace this_thread
|
||||
{
|
||||
using namespace mingw_stdthread::this_thread;
|
||||
}
|
||||
#elif !defined(MINGW_STDTHREAD_REDUNDANCY_WARNING) // Skip repetition
|
||||
#define MINGW_STDTHREAD_REDUNDANCY_WARNING
|
||||
#pragma message "This version of MinGW seems to include a win32 port of\
|
||||
pthreads, and probably already has C++11 std threading classes implemented,\
|
||||
based on pthreads. These classes, found in namespace std, are not overridden\
|
||||
by the mingw-std-thread library. If you would still like to use this\
|
||||
implementation (as it is more lightweight), use the classes provided in\
|
||||
namespace mingw_stdthread."
|
||||
#endif
|
||||
|
||||
// Specialize hash for this implementation's thread::id, even if the
|
||||
// std::thread::id already has a hash.
|
||||
template<>
|
||||
struct hash<mingw_stdthread::thread::id>
|
||||
{
|
||||
typedef mingw_stdthread::thread::id argument_type;
|
||||
typedef size_t result_type;
|
||||
size_t operator() (const argument_type & i) const noexcept
|
||||
{
|
||||
return i.mId;
|
||||
}
|
||||
};
|
||||
}
|
||||
#endif // WIN32STDTHREAD_H
|
||||
@ -42,8 +42,9 @@
|
||||
|
||||
|
||||
#ifdef _WIN32
|
||||
#include <windows.h>
|
||||
#include <winsock2.h>
|
||||
#include <windows.h>
|
||||
#include "mingw.thread.h"
|
||||
#else
|
||||
#include <sys/socket.h>
|
||||
#include <netinet/in.h>
|
||||
@ -104,6 +105,50 @@ int main(int argc, char **argv) {
|
||||
|
||||
printf("ptt_talk.cpp\n"); fflush(stdout);
|
||||
|
||||
float last_time = 0.0;
|
||||
float sleep_time = 0.3;
|
||||
|
||||
#ifdef _WIN32
|
||||
SHORT keyState = GetKeyState(VK_CAPITAL/*(caps lock)*/);
|
||||
bool isToggled = keyState & 1;
|
||||
bool isDown = keyState & 0x8000;
|
||||
initialize(&inputParameters, stream, err, &data, &numSamples, &numBytes, &totalFrames, &should_stop);
|
||||
while (1) {
|
||||
Sleep(sleep_time);
|
||||
|
||||
keyState = GetAsyncKeyState(VK_MENU) & 0x8000;
|
||||
|
||||
/* Record some audio. -------------------------------------------- */
|
||||
if( keyState && capture_key) { //--- tab key
|
||||
printf ("Alt pressed!\n");
|
||||
if( is_recording == false ) { //isn't recording
|
||||
if(last_time >= 0.5) {
|
||||
last_time = 0.0;
|
||||
play_sine();
|
||||
printf(">>> starting\n");
|
||||
is_recording = true; //so start the record
|
||||
should_stop = false;
|
||||
initialize(&inputParameters, stream, err, &data, &numSamples, &numBytes, &totalFrames, &should_stop);
|
||||
//recordAudio(inputParameters, stream, err, data, numSamples, &should_stop, &is_recording);
|
||||
std::thread thread(recordAudio, inputParameters, stream, err, data, numSamples, &should_stop, &is_recording);
|
||||
thread.detach();
|
||||
}
|
||||
} else {
|
||||
if (should_stop == false && is_recording == true) {
|
||||
if(last_time >= 0.5) {
|
||||
last_time = 0.0;
|
||||
printf(">>> stopping\n");
|
||||
should_stop = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
//linux
|
||||
/* ------------------- set key event ------------------- */
|
||||
Display* display = XOpenDisplay(NULL);
|
||||
if(display == NULL) {
|
||||
@ -122,7 +167,7 @@ int main(int argc, char **argv) {
|
||||
XComposeStatus comp;
|
||||
int len;
|
||||
int revert;
|
||||
|
||||
|
||||
unsigned int keycode = XKeysymToKeycode(display, XK_Tab);
|
||||
XGetInputFocus (display, &curFocus, &revert);
|
||||
XSelectInput(display, window, KeyPressMask|KeyReleaseMask|FocusChangeMask);
|
||||
@ -132,12 +177,11 @@ int main(int argc, char **argv) {
|
||||
XEvent ev;
|
||||
/* ------------------- end key event ------------------- */
|
||||
|
||||
float last_time = 0.0;
|
||||
float sleep_time = 0.3;
|
||||
initialize(&inputParameters, stream, err, &data, &numSamples, &numBytes, &totalFrames, &should_stop);
|
||||
while (1)
|
||||
{
|
||||
sleep(sleep_time);
|
||||
|
||||
last_time += sleep_time;
|
||||
if(last_time > 0.5) last_time = 0.5;
|
||||
XNextEvent(display, &ev);
|
||||
@ -215,6 +259,7 @@ int main(int argc, char **argv) {
|
||||
} //end switch
|
||||
|
||||
} //end while
|
||||
#endif
|
||||
}
|
||||
|
||||
int sendMessage(char* file_path) {
|
||||
@ -238,12 +283,11 @@ int sendMessage(char* file_path) {
|
||||
}
|
||||
|
||||
//printf("socket openned");
|
||||
bzero((char *) &serv_addr, sizeof(serv_addr));
|
||||
memset((char *) &serv_addr, 0, sizeof(serv_addr));
|
||||
|
||||
serv_addr.sin_family = AF_INET;
|
||||
bcopy((char *)server->h_addr, (char *)&serv_addr.sin_addr.s_addr, server->h_length);
|
||||
|
||||
serv_addr.sin_port = htons(portno);
|
||||
memmove((char *)&serv_addr.sin_addr.s_addr, (char *)server->h_addr, server->h_length);
|
||||
|
||||
//printf("ok here\n");
|
||||
int con_result = connect(sockfd,(struct sockaddr *) &serv_addr,sizeof(serv_addr));
|
||||
@ -254,8 +298,7 @@ int sendMessage(char* file_path) {
|
||||
//printf("ok here too\n");
|
||||
|
||||
|
||||
|
||||
bzero(buffer,256);
|
||||
memset((char*) buffer, 0, sizeof(buffer));
|
||||
strncpy(buffer, nick, sizeof(buffer));
|
||||
strncat(buffer, (const char*)"\n", sizeof(buffer - 1));
|
||||
//n = send(sockfd , buffer , strlen(nick) , 0 );
|
||||
@ -263,7 +306,7 @@ int sendMessage(char* file_path) {
|
||||
//printf ("return write %d\n", (int)n);
|
||||
if (n < 0)
|
||||
printf("ERROR writing to socket");
|
||||
bzero(buffer,256);
|
||||
memset((char*) buffer, 0, sizeof(buffer));
|
||||
n = read(sockfd,buffer,255);
|
||||
if (n < 0)
|
||||
printf("ERROR reading from socket");
|
||||
@ -271,7 +314,6 @@ int sendMessage(char* file_path) {
|
||||
std::string str_buffer = (std::string) buffer;
|
||||
if(str_buffer == (std::string) "file\n") {
|
||||
//printf("Lets's send file\n");
|
||||
//TODO mandar arquivo
|
||||
int64_t rc = SendFile(sockfd, "recorded.ogg");
|
||||
if (rc < 0) {
|
||||
printf("Failed to send file: %ld\n", rc);
|
||||
|
||||
Binary file not shown.
BIN
ptt_talk_src/win_version/libportaudio.dll
Normal file
BIN
ptt_talk_src/win_version/libportaudio.dll
Normal file
Binary file not shown.
BIN
ptt_talk_src/win_version/ptttalk.exe
Executable file
BIN
ptt_talk_src/win_version/ptttalk.exe
Executable file
Binary file not shown.
BIN
ptt_talk_src/win_version/sndfile.dll
Executable file
BIN
ptt_talk_src/win_version/sndfile.dll
Executable file
Binary file not shown.
Loading…
x
Reference in New Issue
Block a user