wasm-micro-runtime/core/shared/utils/bh_log.c

/*
 * Copyright (C) 2019 Intel Corporation.  All rights reserved.
 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 */

#include "bh_log.h"

/**
 * The verbose level of the log system.  Only those verbose logs whose
 * levels are less than or equal to this value are outputed.
 */
static uint32 log_verbose_level = LOG_LEVEL_WARNING;

void
bh_log_set_verbose_level(uint32 level)
{
    log_verbose_level = level;
}

void
bh_log(LogLevel log_level, const char *file, int line, const char *fmt, ...)
{
    va_list ap;
    korp_tid self;
    char buf[32] = { 0 };
    uint64 usec;
    uint32 t, h, m, s, mills;

    if (log_level > log_verbose_level)
        return;

    self = os_self_thread();

    usec = os_time_get_boot_microsecond();
    t = (uint32)(usec / 1000000) % (24 * 60 * 60);
    h = t / (60 * 60);
    t = t % (60 * 60);
    m = t / 60;
    s = t % 60;
    mills = (uint32)(usec % 1000);

    snprintf(buf, sizeof(buf), "%02u:%02u:%02u:%03u", h, m, s, mills);

    os_printf("[%s - %X]: ", buf, (uint32)self);

    if (file)
        os_printf("%s, line %d, ", file, line);

    va_start(ap, fmt);
    os_vprintf(fmt, ap);
    va_end(ap);

    os_printf("\n");
}