openpilot v0.9.6 release

date: 2024-01-12T10:13:37
master commit: ba792d576a49a0899b88a753fa1c52956bedf9e6

common/watchdog.cc

@@ -0,0 +1,11 @@
+#include <string>
+
+#include "common/watchdog.h"
+#include "common/util.h"
+
+const std::string watchdog_fn_prefix = "/dev/shm/wd_";  // + <pid>
+
+bool watchdog_kick(uint64_t ts) {
+  static std::string fn = watchdog_fn_prefix + std::to_string(getpid());
+  return util::write_file(fn.c_str(), &ts, sizeof(ts), O_WRONLY | O_CREAT) > 0;
+}