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//##########################################################################
//# #
//# CLOUDCOMPARE #
//# #
//# 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; version 2 or later of the License. #
//# #
//# 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. #
//# #
//# COPYRIGHT: EDF R&D / TELECOM ParisTech (ENST-TSI) #
//# #
//##########################################################################
#include "ccLog.h"
//CCLib
#include <CCPlatform.h>
//System
#include <cassert>
#include <vector>
#if !defined(CC_WINDOWS)
#define _vsnprintf vsnprintf
#endif
/***************
*** Globals ***
***************/
//buffer for formatted string generation
static const size_t s_bufferMaxSize = 4096;
static char s_buffer[s_bufferMaxSize];
//! Message
struct Message
{
Message(const QString& t, int f)
: text(t)
, flags(f)
{}
QString text;
int flags;
};
//message backup system
static bool s_backupEnabled;
//backuped messages
static std::vector<Message> s_backupMessages;
//unique console instance
static ccLog* s_instance = nullptr;
ccLog* ccLog::TheInstance()
{
return s_instance;
}
void ccLog::EnableMessageBackup(bool state)
{
s_backupEnabled = state;
}
void ccLog::LogMessage(const QString& message, int level)
{
#ifndef QT_DEBUG
//skip debug messages in release mode as soon as possible
if (level & LOG_DEBUG)
{
return;
}
#endif
if (s_instance)
{
s_instance->logMessage(message, level);
}
else if (s_backupEnabled)
{
try
{
s_backupMessages.emplace_back(message, level);
}
catch (const std::bad_alloc&)
{
//nothing to do, the message will be lost...
}
}
}
void ccLog::RegisterInstance(ccLog* logInstance)
{
s_instance = logInstance;
if (s_instance)
{
//if we have a valid instance, we can now flush the backuped messages
for (const Message& message : s_backupMessages)
{
s_instance->logMessage(message.text, message.flags);
}
s_backupMessages.clear();
}
}
//Conversion from '...' parameters to QString so as to call ccLog::logMessage
//(we get the "..." parameters as "printf" would do)
#define LOG_ARGS(flags)\
if (s_instance || s_backupEnabled)\
{\
va_list args;\
va_start(args, format);\
_vsnprintf(s_buffer, s_bufferMaxSize, format, args);\
va_end(args);\
LogMessage(QString(s_buffer), flags);\
}\
bool ccLog::Print(const char* format, ...)
{
LOG_ARGS(LOG_STANDARD)
return true;
}
bool ccLog::Warning(const char* format, ...)
{
LOG_ARGS(LOG_WARNING)
return false;
}
bool ccLog::Error(const char* format, ...)
{
LOG_ARGS(LOG_ERROR)
return false;
}
bool ccLog::PrintDebug(const char* format, ...)
{
#ifdef QT_DEBUG
LOG_ARGS(LOG_STANDARD | LOG_DEBUG)
#endif
return true;
}
bool ccLog::WarningDebug(const char* format, ...)
{
#ifdef QT_DEBUG
LOG_ARGS(LOG_WARNING | LOG_DEBUG)
#endif
return false;
}
bool ccLog::ErrorDebug(const char* format, ...)
{
#ifdef QT_DEBUG
LOG_ARGS(LOG_ERROR | LOG_DEBUG)
#endif
return false;
}
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