e7282816ff
Change a remaining assert(0) call to FATAL_ERROR(msg). There was a regression since commit ced6d20295a8263757d57c02a07ffcb66688a163 "For usages of assert() that are meant to persist in Release builds (when NDEBUG is defined), replace those usages with persistent alternatives" where when an "uncatched" exception is thrown inside a "side thread", the program doesn't abort anymore. This led to the problem @netinetwalker experienced where the emergethread got an unhandled exception for loading a mapblock while redis was loading, (see #3196) and then jmped outside its loop to work down its queue. This resulted in the server not doing any emerges anymore.
163 lines
3.9 KiB
C++
163 lines
3.9 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program 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. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef DEBUG_HEADER
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#define DEBUG_HEADER
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#include <iostream>
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#include <exception>
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#include <assert.h>
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#include "gettime.h"
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#if (defined(WIN32) || defined(_WIN32_WCE))
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#define WIN32_LEAN_AND_MEAN
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#ifndef _WIN32_WINNT
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#define _WIN32_WINNT 0x0501
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#endif
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#include <windows.h>
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#ifdef _MSC_VER
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#include <eh.h>
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#endif
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#define __NORETURN __declspec(noreturn)
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#define __FUNCTION_NAME __FUNCTION__
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#else
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#define __NORETURN __attribute__ ((__noreturn__))
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#define __FUNCTION_NAME __PRETTY_FUNCTION__
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#endif
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// Whether to catch all std::exceptions.
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// When "catching", the program will abort with an error message.
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// In debug mode, leave these for the debugger and don't catch them.
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#ifdef NDEBUG
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#define CATCH_UNHANDLED_EXCEPTIONS 1
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#else
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#define CATCH_UNHANDLED_EXCEPTIONS 0
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#endif
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/*
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Debug output
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*/
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#define DTIME (getTimestamp()+": ")
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extern void debugstreams_init(bool disable_stderr, const char *filename);
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extern void debugstreams_deinit();
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// This is used to redirect output to /dev/null
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class Nullstream : public std::ostream {
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public:
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Nullstream():
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std::ostream(0)
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{
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}
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private:
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};
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extern std::ostream dstream;
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extern std::ostream dstream_no_stderr;
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extern Nullstream dummyout;
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/* Abort program execution immediately
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*/
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__NORETURN extern void fatal_error_fn(
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const char *msg, const char *file,
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unsigned int line, const char *function);
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#define FATAL_ERROR(msg) \
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fatal_error_fn((msg), __FILE__, __LINE__, __FUNCTION_NAME)
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#define FATAL_ERROR_IF(expr, msg) \
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((expr) \
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? fatal_error_fn((msg), __FILE__, __LINE__, __FUNCTION_NAME) \
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: (void)(0))
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/*
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sanity_check()
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Equivalent to assert() but persists in Release builds (i.e. when NDEBUG is
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defined)
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*/
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__NORETURN extern void sanity_check_fn(
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const char *assertion, const char *file,
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unsigned int line, const char *function);
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#define SANITY_CHECK(expr) \
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((expr) \
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? (void)(0) \
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: sanity_check_fn(#expr, __FILE__, __LINE__, __FUNCTION_NAME))
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#define sanity_check(expr) SANITY_CHECK(expr)
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void debug_set_exception_handler();
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/*
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DebugStack
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*/
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#define DEBUG_STACK_SIZE 50
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#define DEBUG_STACK_TEXT_SIZE 300
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extern void debug_stacks_init();
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extern void debug_stacks_print_to(std::ostream &os);
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extern void debug_stacks_print();
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struct DebugStack;
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class DebugStacker
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{
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public:
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DebugStacker(const char *text);
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~DebugStacker();
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private:
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DebugStack *m_stack;
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bool m_overflowed;
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};
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#define DSTACK(msg) \
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DebugStacker __debug_stacker(msg);
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#define DSTACKF(...) \
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char __buf[DEBUG_STACK_TEXT_SIZE]; \
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snprintf(__buf, DEBUG_STACK_TEXT_SIZE, __VA_ARGS__); \
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DebugStacker __debug_stacker(__buf);
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/*
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These should be put into every thread
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*/
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#if CATCH_UNHANDLED_EXCEPTIONS == 1
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#define BEGIN_DEBUG_EXCEPTION_HANDLER try {
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#define END_DEBUG_EXCEPTION_HANDLER(logstream) \
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} catch (std::exception &e) { \
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logstream << "An unhandled exception occurred: " \
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<< e.what() << std::endl; \
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FATAL_ERROR(e.what()); \
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}
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#else
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// Dummy ones
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#define BEGIN_DEBUG_EXCEPTION_HANDLER
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#define END_DEBUG_EXCEPTION_HANDLER(logstream)
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#endif
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#endif // DEBUG_HEADER
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