Muldersoft/MUtilities
Muldersoft/MUtilities
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Implemented fatal_exit() and exception handler macros.

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This commit is contained in:
LoRd_MuldeR 2014-11-21 19:42:39 +01:00
parent 7ecdb2f57e
commit c10ede3ada
8 changed files with 226 additions and 23 deletions
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2
MUtilities_VS2013.vcxproj
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@ -20,9 +20,11 @@
<ClCompile Include="src\UpdateChecker.cpp" />
</ItemGroup>
<ItemGroup>
<ClInclude Include="include\MUtils\Exception.h" />
<ClInclude Include="include\MUtils\Global.h" />
<ClInclude Include="include\MUtils\OSSupport.h" />
<ClInclude Include="include\Mutils\UpdateChecker.h" />
<ClInclude Include="src\CriticalSection_Win32.h" />
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{55405FE1-149F-434C-9D72-4B64348D2A08}</ProjectGuid>

15
MUtilities_VS2013.vcxproj.filters
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@ -13,6 +13,9 @@
<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
</Filter>
<Filter Include="Public Headers">
<UniqueIdentifier>{d47fbdba-5e24-460a-bba8-824ea0fe874c}</UniqueIdentifier>
</Filter>
</ItemGroup>
<ItemGroup>
<ClCompile Include="src\UpdateChecker.cpp">
@ -26,14 +29,20 @@
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="include\Mutils\UpdateChecker.h">
<ClInclude Include="src\CriticalSection_Win32.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="include\MUtils\Exception.h">
<Filter>Public Headers</Filter>
</ClInclude>
<ClInclude Include="include\MUtils\Global.h">
<Filter>Header Files</Filter>
<Filter>Public Headers</Filter>
</ClInclude>
<ClInclude Include="include\MUtils\OSSupport.h">
<Filter>Header Files</Filter>
<Filter>Public Headers</Filter>
</ClInclude>
<ClInclude Include="include\Mutils\UpdateChecker.h">
<Filter>Public Headers</Filter>
</ClInclude>
</ItemGroup>
</Project>

57
include/MUtils/Exception.h Normal file
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@ -0,0 +1,57 @@
///////////////////////////////////////////////////////////////////////////////
// MuldeR's Utilities for Qt
// Copyright (C) 2004-2014 LoRd_MuldeR <MuldeR2@GMX.de>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser 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
//
// http://www.gnu.org/licenses/lgpl-2.1.txt
//////////////////////////////////////////////////////////////////////////////////
#pragma once
#include <stdexcept>
#define MUTILS_PRINT_ERROR(FORMAT, ...) do \
{ \
fflush(stdout); \
fprintf(stderr, (FORMAT), __VA_ARGS__); \
fflush(stderr); \
} \
while(0)
#define MUTILS_EXCEPTION_HANDLER(COMMAND) do \
{ \
try \
{ \
do { COMMAND; } while(0); \
} \
catch(const std::exception &error) \
{ \
MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nException error:\n%s\n", error.what()); \
MUtils::OS::fatal_exit("Unhandeled C++ exception error, application will exit!"); \
} \
catch(...) \
{ \
MUTILS_PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnknown exception error!\n"); \
MUtils::OS::fatal_exit("Unhandeled C++ exception error, application will exit!"); \
} \
} \
while(0)
#define MUTILS_THROW(MESSAGE) do \
{ \
throw std::runtime_error((MESSAGE)); \
} \
while(0)

3
include/MUtils/OSSupport.h
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@ -41,6 +41,9 @@ namespace MUtils
//Get known Folder
const QString &known_folder(known_folder_t folder_id);
//Error handling
void fatal_exit(const char* const errorMessage);
}
}

98
src/CriticalSection_Win32.h Normal file
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@ -0,0 +1,98 @@
///////////////////////////////////////////////////////////////////////////////
// MuldeR's Utilities for Qt
// Copyright (C) 2004-2014 LoRd_MuldeR <MuldeR2@GMX.de>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser 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
//
// http://www.gnu.org/licenses/lgpl-2.1.txt
//////////////////////////////////////////////////////////////////////////////////
#pragma once
//Win32 API
#define WIN32_LEAN_AND_MEAN 1
#include <Windows.h>
///////////////////////////////////////////////////////////////////////////////
// CRITICAL SECTION
///////////////////////////////////////////////////////////////////////////////
/*
* wrapper for native Win32 critical sections
*/
class CriticalSection
{
public:
inline CriticalSection(void)
{
InitializeCriticalSection(&m_win32criticalSection);
}
inline ~CriticalSection(void)
{
DeleteCriticalSection(&m_win32criticalSection);
}
inline void enter(void)
{
EnterCriticalSection(&m_win32criticalSection);
}
inline bool tryEnter(void)
{
return TryEnterCriticalSection(&m_win32criticalSection);
}
inline void leave(void)
{
LeaveCriticalSection(&m_win32criticalSection);
}
protected:
CRITICAL_SECTION m_win32criticalSection;
};
/*
* RAII-style critical section locker
*/
class CSLocker
{
public:
inline CSLocker(CriticalSection &criticalSection)
:
m_locked(false),
m_criticalSection(criticalSection)
{
m_criticalSection.enter();
m_locked = true;
}
inline ~CSLocker(void)
{
forceUnlock();
}
inline void forceUnlock(void)
{
if(m_locked)
{
m_criticalSection.leave();
m_locked = false;
}
}
protected:
volatile bool m_locked;
CriticalSection &m_criticalSection;
};

2
src/Global.cpp
View File

@ -102,7 +102,7 @@ QString MUtils::rand_str(const bool &bLong)
///////////////////////////////////////////////////////////////////////////////
static QReadWriteLock g_temp_folder_lock;
static QFile *g_temp_folder_file;
static QFile* g_temp_folder_file = NULL;
static QString* g_temp_folder_path = NULL;
#define INIT_TEMP_FOLDER_RAND(OUT_PTR, FILE_PTR, BASE_DIR) do \

47
src/OSSupport_Win32.cpp
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@ -24,6 +24,7 @@
//Internal
#include <MUtils/Global.h>
#include <MUtils/OSSupport.h>
#include "CriticalSection_Win32.h"
//Win32 API
#define WIN32_LEAN_AND_MEAN 1
@ -36,6 +37,9 @@
#include <QLibrary>
#include <QDir>
//Main thread ID
static const DWORD g_main_thread_id = GetCurrentThreadId();
///////////////////////////////////////////////////////////////////////////////
// KNWON FOLDERS
///////////////////////////////////////////////////////////////////////////////
@ -155,3 +159,46 @@ const QString &MUtils::OS::known_folder(known_folder_t folder_id)
}
///////////////////////////////////////////////////////////////////////////////
// FATAL EXIT
///////////////////////////////////////////////////////////////////////////////
static CriticalSection g_fatal_exit_lock;
static volatile bool g_fatal_exit_flag = true;
static DWORD WINAPI fatal_exit_helper(LPVOID lpParameter)
{
MessageBoxA(NULL, ((LPCSTR) lpParameter), "LameXP - Guru Meditation", MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_TOPMOST | MB_SETFOREGROUND);
return 0;
}
void MUtils::OS::fatal_exit(const char* const errorMessage)
{
g_fatal_exit_lock.enter();
if(!g_fatal_exit_flag)
{
return; /*prevent recursive invocation*/
}
g_fatal_exit_flag = false;
if(g_main_thread_id != GetCurrentThreadId())
{
if(HANDLE hThreadMain = OpenThread(THREAD_SUSPEND_RESUME, FALSE, g_main_thread_id))
{
SuspendThread(hThreadMain); /*stop main thread*/
}
}
if(HANDLE hThread = CreateThread(NULL, 0, fatal_exit_helper, (LPVOID) errorMessage, 0, NULL))
{
WaitForSingleObject(hThread, INFINITE);
}
for(;;)
{
TerminateProcess(GetCurrentProcess(), 666);
}
}
///////////////////////////////////////////////////////////////////////////////

23
src/UpdateChecker.cpp
View File

@ -19,8 +19,10 @@
// http://www.gnu.org/licenses/lgpl-2.1.txt
//////////////////////////////////////////////////////////////////////////////////
#include <MUtils/UpdateChecker.h>
#include <MUtils/Global.h>
#include <MUtils/UpdateChecker.h>
#include <MUtils/OSSupport.h>
#include <MUtils/Exception.h>
#include <QStringList>
#include <QFile>
@ -213,7 +215,7 @@ UpdateChecker::UpdateChecker(const QString &binWGet, const QString &binGnuPG, co
if(m_binaryWGet.isEmpty() || m_binaryGnuPG.isEmpty() || m_binaryKeys.isEmpty())
{
THROW("Tools not initialized correctly!");
MUTILS_THROW("Tools not initialized correctly!");
}
}
@ -229,22 +231,7 @@ UpdateChecker::~UpdateChecker(void)
void UpdateChecker::run(void)
{
qDebug("Update checker thread started!");
try
{
m_testMode ? testKnownHosts() : checkForUpdates();
}
catch(const std::exception &error)
{
PRINT_ERROR("\nGURU MEDITATION !!!\n\nException error:\n%s\n", error.what());
lamexp_fatal_exit("Unhandeled C++ exception error, application will exit!");
}
catch(...)
{
PRINT_ERROR("\nGURU MEDITATION !!!\n\nUnknown exception error!\n");
lamexp_fatal_exit("Unhandeled C++ exception error, application will exit!");
}
MUTILS_EXCEPTION_HANDLER(m_testMode ? testKnownHosts() : checkForUpdates());
qDebug("Update checker thread completed.");
}