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openal-soft/Alc/helpers.cpp
Chris Robinson 4522a51ea2 Don't log the function or prefix 
It's ultimately unnecessary since the message is an indicator about where it
was logged from. The message itself is generally more important than where it
was from, too.
2019-06-04 01:37:36 -07:00

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/**
* OpenAL cross platform audio library
* Copyright (C) 2011 by authors.
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
* Or go to http://www.gnu.org/copyleft/lgpl.html
*/
#ifdef _WIN32
#ifdef __MINGW32__
#define _WIN32_IE 0x501
#else
#define _WIN32_IE 0x400
#endif
#endif
#include "config.h"
#include <cstdlib>
#include <ctime>
#include <cerrno>
#include <cstdarg>
#include <cctype>
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
#ifdef HAVE_PROC_PIDPATH
#include <libproc.h>
#endif
#ifdef __FreeBSD__
#include <sys/types.h>
#include <sys/sysctl.h>
#endif
#ifndef AL_NO_UID_DEFS
#if defined(HAVE_GUIDDEF_H) || defined(HAVE_INITGUID_H)
#define INITGUID
#include <windows.h>
#ifdef HAVE_GUIDDEF_H
#include <guiddef.h>
#else
#include <initguid.h>
#endif
DEFINE_GUID(KSDATAFORMAT_SUBTYPE_PCM, 0x00000001, 0x0000, 0x0010, 0x80,0x00, 0x00,0xaa,0x00,0x38,0x9b,0x71);
DEFINE_GUID(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, 0x00000003, 0x0000, 0x0010, 0x80,0x00, 0x00,0xaa,0x00,0x38,0x9b,0x71);
DEFINE_GUID(IID_IDirectSoundNotify, 0xb0210783, 0x89cd, 0x11d0, 0xaf,0x08, 0x00,0xa0,0xc9,0x25,0xcd,0x16);
DEFINE_GUID(CLSID_MMDeviceEnumerator, 0xbcde0395, 0xe52f, 0x467c, 0x8e,0x3d, 0xc4,0x57,0x92,0x91,0x69,0x2e);
DEFINE_GUID(IID_IMMDeviceEnumerator, 0xa95664d2, 0x9614, 0x4f35, 0xa7,0x46, 0xde,0x8d,0xb6,0x36,0x17,0xe6);
DEFINE_GUID(IID_IAudioClient, 0x1cb9ad4c, 0xdbfa, 0x4c32, 0xb1,0x78, 0xc2,0xf5,0x68,0xa7,0x03,0xb2);
DEFINE_GUID(IID_IAudioRenderClient, 0xf294acfc, 0x3146, 0x4483, 0xa7,0xbf, 0xad,0xdc,0xa7,0xc2,0x60,0xe2);
DEFINE_GUID(IID_IAudioCaptureClient, 0xc8adbd64, 0xe71e, 0x48a0, 0xa4,0xde, 0x18,0x5c,0x39,0x5c,0xd3,0x17);
#ifdef HAVE_WASAPI
#include <wtypes.h>
#include <devpropdef.h>
#include <propkeydef.h>
DEFINE_DEVPROPKEY(DEVPKEY_Device_FriendlyName, 0xa45c254e, 0xdf1c, 0x4efd, 0x80,0x20, 0x67,0xd1,0x46,0xa8,0x50,0xe0, 14);
DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_FormFactor, 0x1da5d803, 0xd492, 0x4edd, 0x8c,0x23, 0xe0,0xc0,0xff,0xee,0x7f,0x0e, 0);
DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_GUID, 0x1da5d803, 0xd492, 0x4edd, 0x8c, 0x23,0xe0, 0xc0,0xff,0xee,0x7f,0x0e, 4 );
#endif
#endif
#endif /* AL_NO_UID_DEFS */
#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
#endif
#ifdef HAVE_INTRIN_H
#include <intrin.h>
#endif
#ifdef HAVE_CPUID_H
#include <cpuid.h>
#endif
#ifdef HAVE_SSE_INTRINSICS
#include <xmmintrin.h>
#endif
#ifdef HAVE_SYS_SYSCONF_H
#include <sys/sysconf.h>
#endif
#ifdef HAVE_FLOAT_H
#include <cfloat>
#endif
#ifdef HAVE_IEEEFP_H
#include <ieeefp.h>
#endif
#ifndef _WIN32
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#elif defined(_WIN32_IE)
#include <shlobj.h>
#endif
#include <mutex>
#include <vector>
#include <string>
#include <algorithm>
#include "alMain.h"
#include "alu.h"
#include "cpu_caps.h"
#include "fpu_modes.h"
#include "vector.h"
#include "compat.h"
#include "threads.h"
#if defined(HAVE_GCC_GET_CPUID) && (defined(__i386__) || defined(__x86_64__) || \
defined(_M_IX86) || defined(_M_X64))
using reg_type = unsigned int;
static inline void get_cpuid(int f, reg_type *regs)
{ __get_cpuid(f, &regs[0], &regs[1], &regs[2], &regs[3]); }
#define CAN_GET_CPUID
#elif defined(HAVE_CPUID_INTRINSIC) && (defined(__i386__) || defined(__x86_64__) || \
defined(_M_IX86) || defined(_M_X64))
using reg_type = int;
static inline void get_cpuid(int f, reg_type *regs)
{ (__cpuid)(regs, f); }
#define CAN_GET_CPUID
#endif
int CPUCapFlags = 0;
void FillCPUCaps(int capfilter)
{
int caps = 0;
/* FIXME: We really should get this for all available CPUs in case different
* CPUs have different caps (is that possible on one machine?). */
#ifdef CAN_GET_CPUID
union {
reg_type regs[4];
char str[sizeof(reg_type[4])];
} cpuinf[3] = {{ { 0, 0, 0, 0 } }};
get_cpuid(0, cpuinf[0].regs);
if(cpuinf[0].regs[0] == 0)
ERR("Failed to get CPUID\n");
else
{
unsigned int maxfunc = cpuinf[0].regs[0];
unsigned int maxextfunc;
get_cpuid(0x80000000, cpuinf[0].regs);
maxextfunc = cpuinf[0].regs[0];
TRACE("Detected max CPUID function: 0x%x (ext. 0x%x)\n", maxfunc, maxextfunc);
TRACE("Vendor ID: \"%.4s%.4s%.4s\"\n", cpuinf[0].str+4, cpuinf[0].str+12, cpuinf[0].str+8);
if(maxextfunc >= 0x80000004)
{
get_cpuid(0x80000002, cpuinf[0].regs);
get_cpuid(0x80000003, cpuinf[1].regs);
get_cpuid(0x80000004, cpuinf[2].regs);
TRACE("Name: \"%.16s%.16s%.16s\"\n", cpuinf[0].str, cpuinf[1].str, cpuinf[2].str);
}
if(maxfunc >= 1)
{
get_cpuid(1, cpuinf[0].regs);
if((cpuinf[0].regs[3]&(1<<25)))
caps |= CPU_CAP_SSE;
if((caps&CPU_CAP_SSE) && (cpuinf[0].regs[3]&(1<<26)))
caps |= CPU_CAP_SSE2;
if((caps&CPU_CAP_SSE2) && (cpuinf[0].regs[2]&(1<<0)))
caps |= CPU_CAP_SSE3;
if((caps&CPU_CAP_SSE3) && (cpuinf[0].regs[2]&(1<<19)))
caps |= CPU_CAP_SSE4_1;
}
}
#else
/* Assume support for whatever's supported if we can't check for it */
#if defined(HAVE_SSE4_1)
#warning "Assuming SSE 4.1 run-time support!"
caps |= CPU_CAP_SSE | CPU_CAP_SSE2 | CPU_CAP_SSE3 | CPU_CAP_SSE4_1;
#elif defined(HAVE_SSE3)
#warning "Assuming SSE 3 run-time support!"
caps |= CPU_CAP_SSE | CPU_CAP_SSE2 | CPU_CAP_SSE3;
#elif defined(HAVE_SSE2)
#warning "Assuming SSE 2 run-time support!"
caps |= CPU_CAP_SSE | CPU_CAP_SSE2;
#elif defined(HAVE_SSE)
#warning "Assuming SSE run-time support!"
caps |= CPU_CAP_SSE;
#endif
#endif
#ifdef HAVE_NEON
FILE *file = fopen("/proc/cpuinfo", "rt");
if(!file)
ERR("Failed to open /proc/cpuinfo, cannot check for NEON support\n");
else
{
std::string features;
char buf[256];
while(fgets(buf, sizeof(buf), file) != nullptr)
{
if(strncmp(buf, "Features\t:", 10) != 0)
continue;
features = buf+10;
while(features.back() != '\n')
{
if(fgets(buf, sizeof(buf), file) == nullptr)
break;
features += buf;
}
break;
}
fclose(file);
file = nullptr;
if(!features.empty())
{
const char *str = features.c_str();
while(isspace(str[0])) ++str;
TRACE("Got features string:%s\n", str);
while((str=strstr(str, "neon")) != nullptr)
{
if(isspace(*(str-1)) && (str[4] == 0 || isspace(str[4])))
{
caps |= CPU_CAP_NEON;
break;
}
++str;
}
}
}
#endif
TRACE("Extensions:%s%s%s%s%s%s\n",
((capfilter&CPU_CAP_SSE) ? ((caps&CPU_CAP_SSE) ? " +SSE" : " -SSE") : ""),
((capfilter&CPU_CAP_SSE2) ? ((caps&CPU_CAP_SSE2) ? " +SSE2" : " -SSE2") : ""),
((capfilter&CPU_CAP_SSE3) ? ((caps&CPU_CAP_SSE3) ? " +SSE3" : " -SSE3") : ""),
((capfilter&CPU_CAP_SSE4_1) ? ((caps&CPU_CAP_SSE4_1) ? " +SSE4.1" : " -SSE4.1") : ""),
((capfilter&CPU_CAP_NEON) ? ((caps&CPU_CAP_NEON) ? " +NEON" : " -NEON") : ""),
((!capfilter) ? " -none-" : "")
);
CPUCapFlags = caps & capfilter;
}
FPUCtl::FPUCtl()
{
#if defined(HAVE_SSE_INTRINSICS)
this->sse_state = _mm_getcsr();
unsigned int sseState = this->sse_state;
sseState |= 0x8000; /* set flush-to-zero */
sseState |= 0x0040; /* set denormals-are-zero */
_mm_setcsr(sseState);
#elif defined(__GNUC__) && defined(HAVE_SSE)
if((CPUCapFlags&CPU_CAP_SSE))
{
__asm__ __volatile__("stmxcsr %0" : "=m" (*&this->sse_state));
unsigned int sseState = this->sse_state;
sseState |= 0x8000; /* set flush-to-zero */
if((CPUCapFlags&CPU_CAP_SSE2))
sseState |= 0x0040; /* set denormals-are-zero */
__asm__ __volatile__("ldmxcsr %0" : : "m" (*&sseState));
}
#endif
this->in_mode = true;
}
void FPUCtl::leave()
{
if(!this->in_mode) return;
#if defined(HAVE_SSE_INTRINSICS)
_mm_setcsr(this->sse_state);
#elif defined(__GNUC__) && defined(HAVE_SSE)
if((CPUCapFlags&CPU_CAP_SSE))
__asm__ __volatile__("ldmxcsr %0" : : "m" (*&this->sse_state));
#endif
this->in_mode = false;
}
#ifdef _WIN32
const PathNamePair &GetProcBinary()
{
static PathNamePair ret;
if(!ret.fname.empty() || !ret.path.empty())
return ret;
al::vector<WCHAR> fullpath(256);
DWORD len;
while((len=GetModuleFileNameW(nullptr, fullpath.data(), static_cast<DWORD>(fullpath.size()))) == fullpath.size())
fullpath.resize(fullpath.size() << 1);
if(len == 0)
{
ERR("Failed to get process name: error %lu\n", GetLastError());
return ret;
}
fullpath.resize(len);
if(fullpath.back() != 0)
fullpath.push_back(0);
auto sep = std::find(fullpath.rbegin()+1, fullpath.rend(), '\\');
sep = std::find(fullpath.rbegin()+1, sep, '/');
if(sep != fullpath.rend())
{
*sep = 0;
ret.fname = wstr_to_utf8(&*sep + 1);
ret.path = wstr_to_utf8(fullpath.data());
}
else
ret.fname = wstr_to_utf8(fullpath.data());
TRACE("Got binary: %s, %s\n", ret.path.c_str(), ret.fname.c_str());
return ret;
}
void *LoadLib(const char *name)
{
std::wstring wname{utf8_to_wstr(name)};
return LoadLibraryW(wname.c_str());
}
void CloseLib(void *handle)
{ FreeLibrary(static_cast<HMODULE>(handle)); }
void *GetSymbol(void *handle, const char *name)
{
void *ret{reinterpret_cast<void*>(GetProcAddress(static_cast<HMODULE>(handle), name))};
if(!ret) ERR("Failed to load %s\n", name);
return ret;
}
void al_print(const char *type, const char *fmt, ...)
{
al::vector<char> dynmsg;
char stcmsg[256];
char *str{stcmsg};
va_list args, args2;
va_start(args, fmt);
va_copy(args2, args);
int msglen{std::vsnprintf(str, sizeof(stcmsg), fmt, args)};
if(UNLIKELY(msglen >= 0 && static_cast<size_t>(msglen) >= sizeof(stcmsg)))
{
dynmsg.resize(static_cast<size_t>(msglen) + 1u);
str = dynmsg.data();
msglen = std::vsnprintf(str, dynmsg.size(), fmt, args2);
}
va_end(args2);
va_end(args);
std::wstring wstr{utf8_to_wstr(str)};
fprintf(gLogFile, "AL lib: %s %ls", type, wstr.c_str());
fflush(gLogFile);
}
static inline int is_slash(int c)
{ return (c == '\\' || c == '/'); }
static void DirectorySearch(const char *path, const char *ext, al::vector<std::string> *const results)
{
std::string pathstr{path};
pathstr += "\\*";
pathstr += ext;
TRACE("Searching %s\n", pathstr.c_str());
std::wstring wpath{utf8_to_wstr(pathstr.c_str())};
WIN32_FIND_DATAW fdata;
HANDLE hdl{FindFirstFileW(wpath.c_str(), &fdata)};
if(hdl != INVALID_HANDLE_VALUE)
{
size_t base = results->size();
do {
results->emplace_back();
std::string &str = results->back();
str = path;
str += '\\';
str += wstr_to_utf8(fdata.cFileName);
TRACE("Got result %s\n", str.c_str());
} while(FindNextFileW(hdl, &fdata));
FindClose(hdl);
std::sort(results->begin()+base, results->end());
}
}
al::vector<std::string> SearchDataFiles(const char *ext, const char *subdir)
{
static std::mutex search_lock;
std::lock_guard<std::mutex> _{search_lock};
/* If the path is absolute, use it directly. */
al::vector<std::string> results;
if(isalpha(subdir[0]) && subdir[1] == ':' && is_slash(subdir[2]))
{
std::string path{subdir};
std::replace(path.begin(), path.end(), '/', '\\');
DirectorySearch(path.c_str(), ext, &results);
return results;
}
if(subdir[0] == '\\' && subdir[1] == '\\' && subdir[2] == '?' && subdir[3] == '\\')
{
DirectorySearch(subdir, ext, &results);
return results;
}
std::string path;
/* Search the app-local directory. */
WCHAR *cwdbuf{_wgetenv(L"ALSOFT_LOCAL_PATH")};
if(cwdbuf && *cwdbuf != '\0')
{
path = wstr_to_utf8(cwdbuf);
if(is_slash(path.back()))
path.pop_back();
}
else if(!(cwdbuf=_wgetcwd(nullptr, 0)))
path = ".";
else
{
path = wstr_to_utf8(cwdbuf);
if(is_slash(path.back()))
path.pop_back();
free(cwdbuf);
}
std::replace(path.begin(), path.end(), '/', '\\');
DirectorySearch(path.c_str(), ext, &results);
/* Search the local and global data dirs. */
static constexpr int ids[2]{ CSIDL_APPDATA, CSIDL_COMMON_APPDATA };
for(int id : ids)
{
WCHAR buffer[MAX_PATH];
if(SHGetSpecialFolderPathW(nullptr, buffer, id, FALSE) == FALSE)
continue;
path = wstr_to_utf8(buffer);
if(!is_slash(path.back()))
path += '\\';
path += subdir;
std::replace(path.begin(), path.end(), '/', '\\');
DirectorySearch(path.c_str(), ext, &results);
}
return results;
}
void SetRTPriority(void)
{
bool failed = false;
if(RTPrioLevel > 0)
failed = !SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_TIME_CRITICAL);
if(failed) ERR("Failed to set priority level for thread\n");
}
#else
const PathNamePair &GetProcBinary()
{
static PathNamePair ret;
if(!ret.fname.empty() || !ret.path.empty())
return ret;
al::vector<char> pathname;
#ifdef __FreeBSD__
size_t pathlen;
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
if(sysctl(mib, 4, nullptr, &pathlen, nullptr, 0) == -1)
WARN("Failed to sysctl kern.proc.pathname: %s\n", strerror(errno));
else
{
pathname.resize(pathlen + 1);
sysctl(mib, 4, pathname.data(), &pathlen, nullptr, 0);
pathname.resize(pathlen);
}
#endif
#ifdef HAVE_PROC_PIDPATH
if(pathname.empty())
{
char procpath[PROC_PIDPATHINFO_MAXSIZE]{};
const pid_t pid{getpid()};
if(proc_pidpath(pid, procpath, sizeof(procpath)) < 1)
ERR("proc_pidpath(%d, ...) failed: %s\n", pid, strerror(errno));
else
pathname.insert(pathname.end(), procpath, procpath+strlen(procpath));
}
#endif
if(pathname.empty())
{
pathname.resize(256);
const char *selfname{"/proc/self/exe"};
ssize_t len{readlink(selfname, pathname.data(), pathname.size())};
if(len == -1 && errno == ENOENT)
{
selfname = "/proc/self/file";
len = readlink(selfname, pathname.data(), pathname.size());
}
if(len == -1 && errno == ENOENT)
{
selfname = "/proc/curproc/exe";
len = readlink(selfname, pathname.data(), pathname.size());
}
if(len == -1 && errno == ENOENT)
{
selfname = "/proc/curproc/file";
len = readlink(selfname, pathname.data(), pathname.size());
}
while(len > 0 && static_cast<size_t>(len) == pathname.size())
{
pathname.resize(pathname.size() << 1);
len = readlink(selfname, pathname.data(), pathname.size());
}
if(len <= 0)
{
WARN("Failed to readlink %s: %s\n", selfname, strerror(errno));
return ret;
}
pathname.resize(len);
}
while(!pathname.empty() && pathname.back() == 0)
pathname.pop_back();
auto sep = std::find(pathname.crbegin(), pathname.crend(), '/');
if(sep != pathname.crend())
{
ret.path = std::string(pathname.cbegin(), sep.base()-1);
ret.fname = std::string(sep.base(), pathname.cend());
}
else
ret.fname = std::string(pathname.cbegin(), pathname.cend());
TRACE("Got binary: %s, %s\n", ret.path.c_str(), ret.fname.c_str());
return ret;
}
#ifdef HAVE_DLFCN_H
void *LoadLib(const char *name)
{
dlerror();
void *handle{dlopen(name, RTLD_NOW)};
const char *err{dlerror()};
if(err) handle = nullptr;
return handle;
}
void CloseLib(void *handle)
{ dlclose(handle); }
void *GetSymbol(void *handle, const char *name)
{
dlerror();
void *sym{dlsym(handle, name)};
const char *err{dlerror()};
if(err)
{
WARN("Failed to load %s: %s\n", name, err);
sym = nullptr;
}
return sym;
}
#endif /* HAVE_DLFCN_H */
void al_print(const char *type, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
fprintf(gLogFile, "AL lib: %s ", type);
vfprintf(gLogFile, fmt, ap);
va_end(ap);
fflush(gLogFile);
}
static void DirectorySearch(const char *path, const char *ext, al::vector<std::string> *const results)
{
TRACE("Searching %s for *%s\n", path, ext);
DIR *dir{opendir(path)};
if(dir != nullptr)
{
const size_t extlen = strlen(ext);
size_t base = results->size();
struct dirent *dirent;
while((dirent=readdir(dir)) != nullptr)
{
if(strcmp(dirent->d_name, ".") == 0 || strcmp(dirent->d_name, "..") == 0)
continue;
size_t len{strlen(dirent->d_name)};
if(len <= extlen) continue;
if(strcasecmp(dirent->d_name+len-extlen, ext) != 0)
continue;
results->emplace_back();
std::string &str = results->back();
str = path;
if(str.back() != '/')
str.push_back('/');
str += dirent->d_name;
TRACE("Got result %s\n", str.c_str());
}
closedir(dir);
std::sort(results->begin()+base, results->end());
}
}
al::vector<std::string> SearchDataFiles(const char *ext, const char *subdir)
{
static std::mutex search_lock;
std::lock_guard<std::mutex> _{search_lock};
al::vector<std::string> results;
if(subdir[0] == '/')
{
DirectorySearch(subdir, ext, &results);
return results;
}
/* Search the app-local directory. */
const char *str{getenv("ALSOFT_LOCAL_PATH")};
if(str && *str != '\0')
DirectorySearch(str, ext, &results);
else
{
al::vector<char> cwdbuf(256);
while(!getcwd(cwdbuf.data(), cwdbuf.size()))
{
if(errno != ERANGE)
{
cwdbuf.clear();
break;
}
cwdbuf.resize(cwdbuf.size() << 1);
}
if(cwdbuf.empty())
DirectorySearch(".", ext, &results);
else
{
DirectorySearch(cwdbuf.data(), ext, &results);
cwdbuf.clear();
}
}
// Search local data dir
if((str=getenv("XDG_DATA_HOME")) != nullptr && str[0] != '\0')
{
std::string path{str};
if(path.back() != '/')
path += '/';
path += subdir;
DirectorySearch(path.c_str(), ext, &results);
}
else if((str=getenv("HOME")) != nullptr && str[0] != '\0')
{
std::string path{str};
if(path.back() == '/')
path.pop_back();
path += "/.local/share/";
path += subdir;
DirectorySearch(path.c_str(), ext, &results);
}
// Search global data dirs
if((str=getenv("XDG_DATA_DIRS")) == nullptr || str[0] == '\0')
str = "/usr/local/share/:/usr/share/";
const char *next{str};
while((str=next) != nullptr && str[0] != '\0')
{
next = strchr(str, ':');
std::string path = (next ? std::string(str, next++) : std::string(str));
if(path.empty()) continue;
if(path.back() != '/')
path += '/';
path += subdir;
DirectorySearch(path.c_str(), ext, &results);
}
return results;
}
void SetRTPriority()
{
bool failed = false;
#if defined(HAVE_PTHREAD_SETSCHEDPARAM) && !defined(__OpenBSD__)
if(RTPrioLevel > 0)
{
struct sched_param param;
/* Use the minimum real-time priority possible for now (on Linux this
* should be 1 for SCHED_RR) */
param.sched_priority = sched_get_priority_min(SCHED_RR);
failed = !!pthread_setschedparam(pthread_self(), SCHED_RR, &param);
}
#else
/* Real-time priority not available */
failed = (RTPrioLevel>0);
#endif
if(failed)
ERR("Failed to set priority level for thread\n");
}
#endif
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