/*
- * Test case for pipe_barrier.
+ * Test case for util_barrier.
*
* The test succeeds if no thread exits before all the other threads reach
* the barrier.
#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
-#include "os/os_thread.h"
-#include "os/os_time.h"
+#include "util/os_time.h"
+#include "util/u_atomic.h"
+#include "util/u_thread.h"
#define NUM_THREADS 10
-static pipe_thread threads[NUM_THREADS];
-static pipe_barrier barrier;
+static int verbosity = 0;
+
+static thrd_t threads[NUM_THREADS];
+static util_barrier barrier;
static int thread_ids[NUM_THREADS];
+static volatile int waiting = 0;
+static volatile int proceeded = 0;
+
-static PIPE_THREAD_ROUTINE(thread_function, thread_data)
+#define LOG(fmt, ...) \
+ if (verbosity > 0) { \
+ fprintf(stdout, fmt, ##__VA_ARGS__); \
+ }
+
+#define CHECK(_cond) \
+ if (!(_cond)) { \
+ fprintf(stderr, "%s:%u: `%s` failed\n", __FILE__, __LINE__, #_cond); \
+ _exit(EXIT_FAILURE); \
+ }
+
+
+static int
+thread_function(void *thread_data)
{
int thread_id = *((int *) thread_data);
- printf("thread %d starting\n", thread_id);
- os_time_sleep(thread_id * 1000 * 1000);
- printf("thread %d before barrier\n", thread_id);
- pipe_barrier_wait(&barrier);
- printf("thread %d exiting\n", thread_id);
+ LOG("thread %d starting\n", thread_id);
+ os_time_sleep(thread_id * 100 * 1000);
+ LOG("thread %d before barrier\n", thread_id);
+
+ CHECK(p_atomic_read(&proceeded) == 0);
+ p_atomic_inc(&waiting);
+
+ util_barrier_wait(&barrier);
- return NULL;
+ CHECK(p_atomic_read(&waiting) == NUM_THREADS);
+
+ p_atomic_inc(&proceeded);
+
+ LOG("thread %d exiting\n", thread_id);
+
+ return 0;
}
-int main()
+int main(int argc, char *argv[])
{
int i;
- printf("pipe_barrier_test starting\n");
+ for (i = 1; i < argc; ++i) {
+ const char *arg = argv[i];
+ if (strcmp(arg, "-v") == 0) {
+ ++verbosity;
+ } else {
+ fprintf(stderr, "error: unrecognized option `%s`\n", arg);
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ // Disable buffering
+ setbuf(stdout, NULL);
- pipe_barrier_init(&barrier, NUM_THREADS);
+ LOG("pipe_barrier_test starting\n");
+
+ util_barrier_init(&barrier, NUM_THREADS);
for (i = 0; i < NUM_THREADS; i++) {
thread_ids[i] = i;
- threads[i] = pipe_thread_create(thread_function, (void *) &thread_ids[i]);
+ threads[i] = u_thread_create(thread_function, (void *) &thread_ids[i]);
}
for (i = 0; i < NUM_THREADS; i++ ) {
- pipe_thread_wait(threads[i]);
+ thrd_join(threads[i], NULL);
}
- pipe_barrier_destroy(&barrier);
+ CHECK(p_atomic_read(&proceeded) == NUM_THREADS);
+
+ util_barrier_destroy(&barrier);
- printf("pipe_barrier_test exiting\n");
+ LOG("pipe_barrier_test exiting\n");
return 0;
}