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BPI-CM9-Linux/aml-comp/vendor/amlogic/aml_subtitleserver/libsubtitle/utils/Watchdog.cpp
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2026-08-13 11:28:40 +08:00
/*
* Copyright (C) 2014-2019 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 "Watchdog"
#include "Watchdog.h"
#include <signal.h>
#include <time.h>
#include <cstring>
#include "SubtitleLog.h"
Watchdog::Watchdog(::std::chrono::steady_clock::duration timeout) {
#ifdef NEED_WATCHDOG
// Create the timer.
struct sigevent sev;
sev.sigev_notify = SIGEV_THREAD_ID;
// sev.sigev_notify_thread_id = android::base::GetThreadId();
sev.sigev_signo = SIGABRT;
sev.sigev_value.sival_ptr = &mTimerId;
int err = timer_create(CLOCK_MONOTONIC, &sev, &mTimerId);
if (err != 0) {
SUBTITLE_LOGE("Failed to create timer");
}
// Start the timer.
struct itimerspec spec;
memset(&spec, 0, sizeof(spec));
auto ns = std::chrono::duration_cast<std::chrono::nanoseconds>(timeout);
LOG_ALWAYS_FATAL_IF(timeout.count() <= 0, "Duration must be positive");
spec.it_value.tv_sec = ns.count() / 1000000000;
spec.it_value.tv_nsec = ns.count() % 1000000000;
err = timer_settime(mTimerId, 0, &spec, nullptr);
if (err != 0) {
SUBTITLE_LOGE("Failed to start timer");
}
#else
SUBTITLE_LOGI("empty implementation.");
#endif
}
Watchdog::~Watchdog() {
#ifdef NEED_WATCHDOG
// Delete the timer.
int err = timer_delete(mTimerId);
if (err != 0) {
SUBTITLE_LOGE("Failed to delete timer");
}
#else
SUBTITLE_LOGI("empty implementation.");
#endif
}