/*
 * Copyright (C) 2014-2025 Amlogic, Inc. All rights reserved.
 *
 * All information contained herein is Amlogic confidential.
 *
 * This software is provided to you pursuant to Software License Agreement
 * (SLA) with Amlogic Inc ("Amlogic"). This software may be used
 * only in accordance with the terms of this agreement.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification is strictly prohibited without prior written permission from
 * Amlogic.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#define LOG_TAG "AMLOGIC_UTIL"
#include "AmlogicUtil.h"

#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>

#include "SubtitleLog.h"

pthread_mutex_t am_gAdpLock = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_t am_gHwDmxLock = PTHREAD_MUTEX_INITIALIZER;

static pthread_once_t once = PTHREAD_ONCE_INIT;

static void sig_handler(int signo) {
    pthread_t tid = pthread_self();
    SUBTITLE_LOGI("signal handler, tid %ld, signo %d", tid, signo);
}

static void register_sig_handler() {
    struct sigaction action = {0};
    action.sa_flags = 0;
    action.sa_handler = sig_handler;
    sigaction(SIGALRM, &action, NULL);
}

void AmlogicSigHandlerInit() {
    pthread_once(&once, register_sig_handler);
}

/** Read a string from a file
 * name file name
 * buf buffer to store strings
 * len buffer size
 * - AM_SUCCESS Success
 * - other values Error code
 */
int AmlogicFileRead(const char *name, char *buf, int len) {
    int fd = open(name, O_RDONLY);
    int c = 0;
    if (fd >= 0) {
        c = read(fd, buf, len);
        if (c > 0) {
            // SUBTITLE_LOGI("read success val:%s", buf);
        } else {
            SUBTITLE_LOGI("read failed!file %s, err: %m", name);
        }
        close(fd);
    } else {
        SUBTITLE_LOGI("unable to open file %s, err: %m", name);
    }
    return c > 0 ? AM_SUCCESS : AM_FAILURE;
}