log.cc

Linux下比较早的基于命令行的DVD播放器

//
// Copyright (c) 2003 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card.

// 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, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

//------------------------------------------------------------------------------

#include "Log.h"
#include "Config.h"

#include <cstdio>
#include <ctime>

//------------------------------------------------------------------------------

Log::Logger::Logger() :
    logFile((Config::get().logFileName==0) ? 0 : fopen(Config::get().logFileName, "wt")),
    isVerbose(Config::get().verboseLogging),
    lastType(NORMAL)
{
    
}

//------------------------------------------------------------------------------

Log::Logger::~Logger()
{
    if (logFile!=0) fclose(reinterpret_cast<FILE*>(logFile));
}

//------------------------------------------------------------------------------

inline bool Log::Logger::shouldLog(type_t type)
{
    return type!=VERBOSE_DEBUG || isVerbose;
}

//------------------------------------------------------------------------------

void Log::Logger::log(type_t type, const char* format, std::va_list& ap)
{
    lastType = type;

    if (!shouldLog(type)) return;

    time_t t;
    time(&t);

    char tbuf[32];
    strftime(tbuf, sizeof(tbuf), "%H:%M:%S", localtime(&t));

    fprintf(stderr, "%s: ", tbuf);
    vfprintf(stderr, format, ap);

    if (logFile!=0) {
        fprintf(reinterpret_cast<FILE*>(logFile), "%s: ", tbuf);
        vfprintf(reinterpret_cast<FILE*>(logFile), format, ap);
    }
};

//------------------------------------------------------------------------------

void Log::Logger::cont(const char* format, std::va_list& ap)
{
    if (!shouldLog(lastType)) return;
    
    vfprintf(stderr, format, ap);
    if (logFile!=0) {
        vfprintf(reinterpret_cast<FILE*>(logFile), format, ap);
    }
}

//------------------------------------------------------------------------------