LibLog.cpp

//------------------------------------------------------------------------------
//This file is part of embKernel. 
//See license.txt for the full license governing this code.
//------------------------------------------------------------------------------

#include "LibLog.hpp"
#include "LibStringFormat.hpp"
#include "LibCfg.hpp"
#include <stdarg.h>

LibLog::LEVEL LibLog::sLevel = LEVEL_OFF;
LibStreamOut* LibLog::sStream = 0;
RtosSemaphore LibLog::sSema(1, 1);

void LibLog::setStream(LibStreamOut* stream) {
    sSema.take(Rtos::TICK_INFINITE);
    sStream = stream;
    sSema.give(Rtos::TICK_INFINITE);
}

void LibLog::setLevel(LEVEL level) {
    sLevel = level;
}

int LibLog::printf(LEVEL level, const char* string, ...) {
    sSema.take(Rtos::TICK_INFINITE);
    if (level < sLevel) {
        sSema.give(Rtos::TICK_INFINITE);
        return 0;
    }
    if (sStream == 0) {
        sSema.give(Rtos::TICK_INFINITE);
        return 0;
    }

    int len;
    va_list varg;

    va_start(varg, string);

    len = LibStringFormat::vprintf(*sStream, string, varg);
    flush();
    sSema.give(Rtos::TICK_INFINITE);
    va_end(varg);
    return len;
}

__attribute__((weak)) void LibLog::flush() {

}