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/*
* This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program 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 General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Errors.h"
#include "StringFormat.h"
#include <cstdio>
#include <cstdlib>
#include <thread>
#include <cstdarg>
/**
@file Errors.cpp
@brief This file contains definitions of functions used for reporting critical application errors
It is very important that (std::)abort is NEVER called in place of *((volatile int*)nullptr) = 0;
Calling abort() on Windows does not invoke unhandled exception filters - a mechanism used by WheatyExceptionReport
to log crashes. exit(1) calls here are for static analysis tools to indicate that calling functions defined in this file
terminates the application.
*/
#if TRINITY_PLATFORM == TRINITY_PLATFORM_WINDOWS
#include <Windows.h>
#define Crash(message) \
ULONG_PTR execeptionArgs[] = { reinterpret_cast<ULONG_PTR>(strdup(message)), reinterpret_cast<ULONG_PTR>(_ReturnAddress()) }; \
RaiseException(EXCEPTION_ASSERTION_FAILURE, 0, 2, execeptionArgs);
#else
// should be easily accessible in gdb
extern "C" { TC_COMMON_API char const* TrinityAssertionFailedMessage = nullptr; }
#define Crash(message) \
TrinityAssertionFailedMessage = strdup(message); \
*((volatile int*)nullptr) = 0; \
exit(1);
#endif
namespace
{
std::string FormatAssertionMessage(char const* format, va_list args)
{
std::string formatted;
va_list len;
va_copy(len, args);
int32 length = vsnprintf(nullptr, 0, format, len);
va_end(len);
formatted.resize(length + 1);
vsnprintf(&formatted[0], length + 1, format, args);
return formatted;
}
}
namespace Trinity
{
void Assert(char const* file, int line, char const* function, char const* message)
{
std::string formattedMessage = StringFormat("\n%s:%i in %s ASSERTION FAILED:\n %s\n", file, line, function, message);
fprintf(stderr, "%s", formattedMessage.c_str());
fflush(stderr);
Crash(formattedMessage.c_str());
}
void Assert(char const* file, int line, char const* function, char const* message, char const* format, ...)
{
va_list args;
va_start(args, format);
std::string formattedMessage = StringFormat("\n%s:%i in %s ASSERTION FAILED:\n %s\n", file, line, function, message) + FormatAssertionMessage(format, args) + '\n';
va_end(args);
fprintf(stderr, "%s", formattedMessage.c_str());
fflush(stderr);
Crash(formattedMessage.c_str());
}
void Fatal(char const* file, int line, char const* function, char const* message, ...)
{
va_list args;
va_start(args, message);
std::string formattedMessage = StringFormat("\n%s:%i in %s FATAL ERROR:\n", file, line, function) + FormatAssertionMessage(message, args) + '\n';
va_end(args);
fprintf(stderr, "%s", formattedMessage.c_str());
fflush(stderr);
std::this_thread::sleep_for(std::chrono::seconds(10));
Crash(formattedMessage.c_str());
}
void Error(char const* file, int line, char const* function, char const* message)
{
std::string formattedMessage = StringFormat("\n%s:%i in %s ERROR:\n %s\n", file, line, function, message);
fprintf(stderr, "%s", formattedMessage.c_str());
fflush(stderr);
Crash(formattedMessage.c_str());
}
void Warning(char const* file, int line, char const* function, char const* message)
{
fprintf(stderr, "\n%s:%i in %s WARNING:\n %s\n",
file, line, function, message);
}
void Abort(char const* file, int line, char const* function)
{
std::string formattedMessage = StringFormat("\n%s:%i in %s ABORTED.\n", file, line, function);
fprintf(stderr, "%s", formattedMessage.c_str());
fflush(stderr);
Crash(formattedMessage.c_str());
}
void AbortHandler(int sigval)
{
// nothing useful to log here, no way to pass args
std::string formattedMessage = StringFormat("Caught signal %i\n", sigval);
fprintf(stderr, "%s", formattedMessage.c_str());
fflush(stderr);
Crash(formattedMessage.c_str());
}
} // namespace Trinity
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