bgp-log-handler.cc

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#include "bgp-log-handler.h"
#include <stdarg.h>
#include <stdio.h>

namespace libbgp {

const char* bgp_log_level_str[] = {
    "FATAL",
    "ERROR",
    "WARN ",
    "INFO ",
    "DEBUG"
};

BgpLogHandler::BgpLogHandler() {
    level = INFO;
}

void BgpLogHandler::setLogLevel(LogLevel level) {
    this->level = level;
}

LogLevel BgpLogHandler::getLogLevel() const {
    return level;
}

void BgpLogHandler::log(LogLevel level, const char* format_str, ...) {
    if (level > this->level) return;

    buf_mtx.lock();
    int pre_sz = snprintf(out_buffer, 4096, "[%s] ", bgp_log_level_str[level]);

    va_list args;
    va_start(args, format_str);
    vsnprintf(out_buffer + pre_sz, 4096 - pre_sz, format_str, args);
    va_end(args);
    logImpl(out_buffer);
    buf_mtx.unlock();
}

void BgpLogHandler::log(LogLevel level, const Serializable &serializable) {
    buf_mtx.lock();
    int pre_sz = snprintf(out_buffer, 4096, "[%s] ", bgp_log_level_str[level]);
    serializable.print((uint8_t *) (out_buffer + pre_sz), 4096 - pre_sz);
    logImpl(out_buffer);
    buf_mtx.unlock();
}

void BgpLogHandler::logImpl(const char* str) {
    fprintf(::stderr, "%s", str);
}

}