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d9a1194e6f
* Adding document describing how to use logger * Adjusting logs to follow a new guide * Change order in log header: line number is now before function name
91 lines
2.2 KiB
C++
91 lines
2.2 KiB
C++
// Copyright (c) 2017-2023, Mudita Sp. z.o.o. All rights reserved.
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// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
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#include <SystemWatchdog/SystemWatchdog.hpp>
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#include "system/Common.hpp"
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#include "critical.hpp"
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#include "ticks.hpp"
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#include "bsp/watchdog/watchdog.hpp"
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#include <log/log.hpp>
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namespace sys
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{
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using namespace cpp_freertos;
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static constexpr uint16_t stackDepthWords = 256;
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SystemWatchdog::SystemWatchdog()
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: Thread(threadName, stackDepthWords, static_cast<UBaseType_t>(ServicePriority::High))
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{}
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SystemWatchdog &SystemWatchdog::getInstance()
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{
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static SystemWatchdog watchdog;
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return watchdog;
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}
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bool SystemWatchdog::init()
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{
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#ifdef DISABLE_WATCHDOG
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return true;
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#else
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if (!bsp::watchdog::init(watchdogTimeoutPeriod)) {
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return false;
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}
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bsp::watchdog::refresh();
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enableRunLoop = true;
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if (!Start()) {
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return false;
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}
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refresh();
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return true;
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#endif
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}
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void SystemWatchdog::refresh()
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{
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#ifndef DISABLE_WATCHDOG
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// Critical section not required (atomic 32-bit writes)
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lastRefreshTimestamp = Ticks::GetTicks();
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#endif
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}
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void SystemWatchdog::Run()
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{
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while (enableRunLoop) {
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Delay(checkPeriod);
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if (timeout_occurred) {
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continue;
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}
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// Critical section not required (atomic 32-bit reads)
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if (Ticks::GetTicks() - lastRefreshTimestamp >= refreshTimeoutPeriod) {
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// Allow HW watchdog timeout to occur
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timeout_occurred = true;
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LOG_FATAL("System watchdog timeout, system will be reset soon!");
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}
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else {
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bsp::watchdog::refresh();
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}
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}
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// notify caller of deinit()
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taskEndedSem.Give();
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}
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void SystemWatchdog::deinit()
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{
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#ifndef DISABLE_WATCHDOG
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enableRunLoop = false;
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xTaskAbortDelay(GetHandle());
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if (!taskEndedSem.Take(closurePeriod)) {
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LOG_ERROR("Watchdog thread was not gently closed, killing");
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}
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#endif
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}
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} // namespace sys
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