// Ctrl+C handling for Windows console apps
static BOOL WINAPI CtrlHandler(DWORD fdwCtrlType) {
if (is_tracing && fdwCtrlType == CTRL_C_EVENT) {
printf("Ctrl-C detected! Flushing trace and shutting down.\n\n");
mtr_flush();
mtr_shutdown();
}
ExitProcess(1);
}
static void termination_handler(int signum) {
(void) signum;
if (is_tracing) {
printf("Ctrl-C detected! Flushing trace and shutting down.\n\n");
mtr_flush();
fwrite("\n]}\n", 1, 4, f);
fclose(f);
}
exit(1);
}
int main() {
int i;
mtr_init("trace.json");
mtr_register_sigint_handler();
MTR_META_PROCESS_NAME("minitrace_test");
MTR_META_THREAD_NAME("main thread");
int long_running_thing_1;
int long_running_thing_2;
MTR_START("background", "long_running", &long_running_thing_1);
MTR_START("background", "long_running", &long_running_thing_2);
MTR_COUNTER("main", "greebles", 3);
MTR_BEGIN("main", "outer");
usleep(80000);
for (i = 0; i < 3; i++) {
MTR_BEGIN("main", "inner");
usleep(40000);
MTR_END("main", "inner");
usleep(10000);
MTR_COUNTER("main", "greebles", 3 * i + 10);
}
MTR_STEP("background", "long_running", &long_running_thing_1, "middle step");
usleep(80000);
MTR_END("main", "outer");
MTR_COUNTER("main", "greebles", 0);
usleep(10000);
a();
usleep(50000);
MTR_INSTANT("main", "the end");
usleep(10000);
MTR_FINISH("background", "long_running", &long_running_thing_1);
MTR_FINISH("background", "long_running", &long_running_thing_2);
mtr_flush();
mtr_shutdown();
return 0;
}
void mtr_shutdown() {
int i;
#ifndef MTR_ENABLED
return;
#endif
is_tracing = 0;
mtr_flush();
fwrite("\n]}\n", 1, 4, f);
fclose(f);
pthread_mutex_destroy(&mutex);
f = 0;
free(buffer);
buffer = 0;
for (i = 0; i < STRING_POOL_SIZE; i++) {
if (str_pool[i]) {
free(str_pool[i]);
str_pool[i] = 0;
}
}
}
