nestopia/source/core/NstLog.cpp
2012-09-02 13:13:55 -04:00

150 lines
3.1 KiB
C++

////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia 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.
//
// Nestopia 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 Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#include <cstdio>
#include <new>
#include <string>
#include "NstAssert.hpp"
#include "NstLog.hpp"
#include "api/NstApiUser.hpp"
namespace Nes
{
namespace Core
{
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("s", on)
#endif
struct Log::Object
{
std::string string;
};
bool Log::enabled = true;
Log::Log()
: object( !Api::User::logCallback ? NULL : new (std::nothrow) Object )
{
}
Log::~Log()
{
if (object)
{
if (enabled)
Api::User::logCallback( object->string.c_str(), object->string.size() );
delete object;
}
}
bool Log::Available()
{
return Api::User::logCallback;
}
void Log::Append(cstring c,ulong n)
{
object->string.append( c, n );
}
Log& Log::operator << (long value)
{
if (enabled && object)
{
char buffer[24];
const int length = std::sprintf( buffer, "%li", value );
NST_VERIFY( length > 0 );
if (length > 0)
Append( buffer, length );
}
return *this;
}
Log& Log::operator << (ulong value)
{
if (enabled && object)
{
char buffer[24];
const int length = std::sprintf( buffer, "%lu", value );
NST_VERIFY( length > 0 );
if (length > 0)
Append( buffer, length );
}
return *this;
}
Log& Log::operator << (cstring c)
{
if (enabled && object)
object->string.append( c );
return *this;
}
Log& Log::operator << (char c)
{
if (enabled && object)
object->string.append( 1, c );
return *this;
}
Log& Log::operator << (const Hex& hex)
{
if (enabled && object)
{
char buffer[16];
buffer[0] = '0';
buffer[1] = 'x';
const int length = std::sprintf( buffer + 2, hex.format, hex.value );
NST_VERIFY( length > 0 );
if (length > 0)
Append( buffer, 2 + length );
}
return *this;
}
void Log::Flush(cstring string,dword length)
{
if (enabled)
Api::User::logCallback( string, length );
}
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("", on)
#endif
}
}