diff options
1 files changed, 60 insertions, 0 deletions
| -rw-r--r-- | gctest/minitrace/minitrace_test_mt.cpp | 60 |
diff --git a/gctest/minitrace/minitrace_test_mt.cpp b/gctest/minitrace/minitrace_test_mt.cpp new file mode 100644 index 0000000..899a193 --- /dev/null +++ b/gctest/minitrace/minitrace_test_mt.cpp @@ -0,0 +1,60 @@ +// Test minitrace with multiple threads. + +#include <inttypes.h> +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <pthread.h> + +#include "minitrace.h" + +// Does some meaningless work. +int work(int cycles) { + int a = cycles; + for (int i = 0; i < cycles; i++) { + a ^= 373; + a = (a << 13) | (a >> (32 - 13)); + } + return a; +} + +void *worker_thread(void *param) { + int id = (int)(intptr_t)param; + char temp[256]; sprintf(temp, "Worker Thread %i", id); + MTR_META_THREAD_NAME(temp); + int x = 0; + for (int i = 0; i < 32; i++) { + MTR_BEGIN_I(__FILE__, "Worker", "ID", id); + x += work((rand() & 0x7fff) * 1000); + MTR_END(__FILE__, "Worker"); + } + return (void *)(intptr_t)x; +} + +void phase2() { + for (int i = 0; i < 10000; i++) { + MTR_BEGIN_FUNC(); + MTR_END_FUNC(); + } +} + +int main() { + int i; + mtr_init("mt_trace.json"); + MTR_META_PROCESS_NAME("Multithreaded Test"); + MTR_META_THREAD_NAME("Main Thread"); + MTR_BEGIN_FUNC(); + #define NUMT 8 + pthread_t threads[NUMT]; + for (i = 0; i < NUMT; i++) { + pthread_create(&threads[i], 0, &worker_thread, (void *)(intptr_t)i); + } + for (i = 0; i < NUMT; i++) { + pthread_join(threads[i], 0); + } + phase2(); + + MTR_END_FUNC(); + mtr_shutdown(); + return 0; +} |