133 lines
3.4 KiB
C++
133 lines
3.4 KiB
C++
//
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// Copyright (c) 2010-2011 Matthew Jack and Doug Binks
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would be
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// appreciated but is not required.
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// 2. Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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// 3. This notice may not be removed or altered from any source distribution.
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#include "ThreadsafeLogSystem.h"
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#ifdef _WIN32
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#include <Windows.h>
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#include <concrt.h>
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#else
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#include <pthread.h>
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// Linux / Mac OS X implementation of critical sections
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// Not as efficient as a spin lock might be for this purpose, should probably move to one of those at some point
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typedef pthread_mutex_t CRITICAL_SECTION;
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void InitializeCriticalSection( CRITICAL_SECTION* pCrit )
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{
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pthread_mutex_init(pCrit, NULL);
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}
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void DeleteCriticalSection( CRITICAL_SECTION* pCrit )
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{
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//do nothing
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}
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void EnterCriticalSection( CRITICAL_SECTION* pCrit )
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{
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pthread_mutex_lock( pCrit );
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}
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void LeaveCriticalSection( CRITICAL_SECTION* pCrit )
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{
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pthread_mutex_unlock( pCrit );
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}
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#endif
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#include <stdarg.h>
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#include <assert.h>
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#pragma warning( disable : 4996 4800 )
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struct ThreadsafeLogSystem::TLSPlatformImpl
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{
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CRITICAL_SECTION critSec;
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};
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ThreadsafeLogSystem::ThreadsafeLogSystem(void)
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{
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m_pImpl = new TLSPlatformImpl();
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InitializeCriticalSection(&(m_pImpl->critSec));
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m_eVerbosity = eLV_COMMENTS; // By default, defer any filtering
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m_protectedLogger = NULL;
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}
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ThreadsafeLogSystem::~ThreadsafeLogSystem(void)
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{
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delete m_protectedLogger;
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DeleteCriticalSection(&(m_pImpl->critSec));
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delete m_pImpl;
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}
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void ThreadsafeLogSystem::SetProtectedLogSystem(ILogSystem *pLogSystem)
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{
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EnterCriticalSection(&(m_pImpl->critSec));
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if (m_protectedLogger)
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delete m_protectedLogger;
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m_protectedLogger = pLogSystem;
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LeaveCriticalSection(&(m_pImpl->critSec));
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}
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ELogVerbosity ThreadsafeLogSystem::GetVerbosity() const
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{
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return m_eVerbosity;
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}
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void ThreadsafeLogSystem::SetVerbosity(ELogVerbosity eVerbosity)
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{
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EnterCriticalSection(&(m_pImpl->critSec));
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m_eVerbosity = eVerbosity;
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LeaveCriticalSection(&(m_pImpl->critSec));
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}
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ThreadsafeLogSystem::TVerbosityPeeker ThreadsafeLogSystem::GetVerbosityPeeker() const
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{
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return (&m_eVerbosity);
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}
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void ThreadsafeLogSystem::Log(ELogVerbosity eVerbosity, const char * format, ...)
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{
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va_list args;
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va_start(args, format);
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LogInternal(eVerbosity, format, args);
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}
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void ThreadsafeLogSystem::LogVa(va_list args, ELogVerbosity eVerbosity, const char * format)
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{
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LogInternal(eVerbosity, format, args);
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}
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void ThreadsafeLogSystem::LogInternal(ELogVerbosity eVerbosity, const char * format, va_list args)
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{
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if (eVerbosity > m_eVerbosity || eVerbosity == eLV_NEVER) return;
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// Possible bug here in all loggers - should also check against "compile out" value
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EnterCriticalSection(&(m_pImpl->critSec));
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m_protectedLogger->LogVa(args, eVerbosity, format);
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LeaveCriticalSection(&(m_pImpl->critSec));
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}
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