Add WatchDog class to kill process after a timeout.
Change-Id: I014e8a1148b5b0e731b14c39d2410aaedd877d2f
Bug: 72652321
diff --git a/src/base/watchdog.cc b/src/base/watchdog.cc
new file mode 100644
index 0000000..8ba7981
--- /dev/null
+++ b/src/base/watchdog.cc
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "perfetto/base/watchdog.h"
+
+#include "perfetto/base/logging.h"
+
+#include <signal.h>
+#include <stdint.h>
+
+namespace perfetto {
+namespace base {
+
+WatchDog::WatchDog(time_t millisecs) {
+ struct sigevent sev;
+ sev.sigev_notify = SIGEV_SIGNAL;
+ sev.sigev_signo = SIGABRT;
+ sev.sigev_value.sival_ptr = &timerid_;
+ PERFETTO_CHECK(timer_create(CLOCK_MONOTONIC, &sev, &timerid_) != -1);
+ struct itimerspec its;
+ its.it_value.tv_sec = millisecs / 1000;
+ its.it_value.tv_nsec = 1000000L * (millisecs % 1000);
+ its.it_interval.tv_sec = 0;
+ its.it_interval.tv_nsec = 0;
+ PERFETTO_CHECK(timer_settime(timerid_, 0, &its, nullptr) != -1);
+}
+
+WatchDog::~WatchDog() {
+ PERFETTO_CHECK(timer_delete(timerid_) != -1);
+}
+
+} // namespace base
+} // namespace perfetto