Errors.cpp

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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>
 
#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);
        vsnprintf(&formatted[0], length + 1, format, args);
 
        return formatted;
    }
}
 
namespace Trinity
{
 
void Assert(char const* file, int line, char const* function, std::string debugInfo, char const* message)
{
    std::string formattedMessage = StringFormat("\n{}:{} in {} ASSERTION FAILED:\n  {}\n", file, line, function, message) + debugInfo + '\n';
    fprintf(stderr, "%s", formattedMessage.c_str());
    fflush(stderr);
    Crash(formattedMessage.c_str());
}
 
void Assert(char const* file, int line, char const* function, std::string debugInfo, char const* message, char const* format, ...)
{
    va_list args;
    va_start(args, format);
 
    std::string formattedMessage = StringFormat("\n{}:{} in {} ASSERTION FAILED:\n  {}\n", file, line, function, message) + FormatAssertionMessage(format, args) + '\n' + debugInfo + '\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{}:{} in {} 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{}:{} in {} ERROR:\n  {}\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{}:{} in {} ABORTED.\n", file, line, function);
    fprintf(stderr, "%s", formattedMessage.c_str());
    fflush(stderr);
    Crash(formattedMessage.c_str());
}
 
void Abort(char const* file, int line, char const* function, char const* message, ...)
{
    va_list args;
    va_start(args, message);
 
    std::string formattedMessage = StringFormat("\n{}:{} in {} ABORTED:\n", file, line, function) + FormatAssertionMessage(message, args) + '\n';
    va_end(args);
 
    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 {}\n", sigval);
    fprintf(stderr, "%s", formattedMessage.c_str());
    fflush(stderr);
    Crash(formattedMessage.c_str());
}
 
} // namespace Trinity
 
std::string GetDebugInfo()
{
    return "";
}