From ba255bfc42c4637b5a541b419112b30cf21e8fb5 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 13 Jan 2010 17:40:31 +0100
Subject: tests: add pa_once_xxx() test

---
 src/tests/once-test.c | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 src/tests/once-test.c

(limited to 'src/tests')

diff --git a/src/tests/once-test.c b/src/tests/once-test.c
new file mode 100644
index 00000000..5b55532c
--- /dev/null
+++ b/src/tests/once-test.c
@@ -0,0 +1,103 @@
+/***
+  This file is part of PulseAudio.
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2.1 of the License,
+  or (at your option) any later version.
+
+  PulseAudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with PulseAudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <pthread.h>
+
+#include <pulsecore/thread.h>
+#include <pulsecore/mutex.h>
+#include <pulsecore/once.h>
+#include <pulsecore/log.h>
+#include <pulsecore/core-util.h>
+#include <pulsecore/core-error.h>
+#include <pulsecore/atomic.h>
+#include <pulse/xmalloc.h>
+
+static pa_once once = PA_ONCE_INIT;
+static volatile unsigned n_run = 0;
+static const char * volatile ran_by = NULL;
+static pthread_barrier_t barrier;
+static pa_atomic_t i_cpu = PA_ATOMIC_INIT(0);
+static unsigned n_cpu;
+
+#define N_ITERATIONS 500
+#define N_THREADS 100
+
+static void once_func(void) {
+    n_run++;
+    ran_by = (const char*) pa_thread_get_data(pa_thread_self());
+}
+
+static void thread_func(void *data) {
+    int r;
+
+#ifdef HAVE_PTHREAD_SETAFFINITY_NP
+    cpu_set_t mask;
+
+    CPU_ZERO(&mask);
+    CPU_SET((size_t) (pa_atomic_inc(&i_cpu) % n_cpu), &mask);
+    pa_assert_se(pthread_setaffinity_np(pthread_self(), sizeof(mask), &mask) == 0);
+#endif
+
+    /* pa_log("started up: %s", data); */
+
+    r = pthread_barrier_wait(&barrier);
+    pa_assert(r == 0 || r == PTHREAD_BARRIER_SERIAL_THREAD);
+
+    pa_run_once(&once, once_func);
+}
+
+int main(int argc, char *argv[]) {
+    unsigned n, i;
+
+    n_cpu = pa_ncpus();
+
+    for (n = 0; n < N_ITERATIONS; n++) {
+        pa_thread* threads[N_THREADS];
+
+        pa_assert_se(pthread_barrier_init(&barrier, NULL, N_THREADS) == 0);
+
+        /* Yes, kinda ugly */
+        pa_zero(once);
+
+        for (i = 0; i < N_THREADS; i++)
+            threads[i] = pa_thread_new(thread_func, pa_sprintf_malloc("Thread #%i", i+1));
+
+        for (i = 0; i < N_THREADS; i++)
+            pa_thread_join(threads[i]);
+
+        pa_assert(n_run == 1);
+        pa_log("ran by %s", ran_by);
+
+        for (i = 0; i < N_THREADS; i++) {
+            pa_xfree(pa_thread_get_data(threads[i]));
+            pa_thread_free(threads[i]);
+        }
+
+        n_run = 0;
+        ran_by = NULL;
+
+        pa_assert_se(pthread_barrier_destroy(&barrier) == 0);
+    }
+
+    return 0;
+}
-- 
cgit