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authorLennart Poettering <lennart@poettering.net>2006-08-29 19:51:14 +0000
committerLennart Poettering <lennart@poettering.net>2006-08-29 19:51:14 +0000
commitb2c341f935bd54eb1b7f80a297e72bf0e6c6dc83 (patch)
treeca1ac4dd63698766fcb5312ab389194283a5af00 /src/tests
parent5264d235d25f04d3cd5796e751a66cb92453be73 (diff)
add a threading primitive API
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1344 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'src/tests')
-rw-r--r--src/tests/thread-test.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/src/tests/thread-test.c b/src/tests/thread-test.c
new file mode 100644
index 00000000..a93ac1e4
--- /dev/null
+++ b/src/tests/thread-test.c
@@ -0,0 +1,135 @@
+/* $Id$ */
+
+/***
+ 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 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 <sched.h>
+
+#include <pulsecore/thread.h>
+#include <pulsecore/mutex.h>
+#include <pulsecore/log.h>
+#include <pulsecore/core-util.h>
+#include <pulse/xmalloc.h>
+
+static pa_mutex *mutex = NULL;
+static pa_cond *cond1 = NULL, *cond2 = NULL;
+static pa_tls *tls = NULL;
+
+static int magic_number = 0;
+
+#define THREADS_MAX 20
+
+static void thread_func(void *data) {
+ pa_tls_set(tls, data);
+
+ pa_log("thread_func() for %s starting...", (char*) pa_tls_get(tls));
+
+ pa_mutex_lock(mutex);
+
+ for (;;) {
+ int k, n;
+
+ pa_log("%s waiting ...", (char*) pa_tls_get(tls));
+
+ for (;;) {
+
+ if (magic_number < 0)
+ goto quit;
+
+ if (magic_number != 0)
+ break;
+
+ pa_cond_wait(cond1, mutex);
+ }
+
+ k = magic_number;
+ magic_number = 0;
+
+ pa_mutex_unlock(mutex);
+
+ pa_cond_signal(cond2, 0);
+
+ pa_log("%s got number %i", (char*) pa_tls_get(tls), k);
+
+ /* Spin! */
+ for (n = 0; n < k; n++)
+ sched_yield();
+
+ pa_mutex_lock(mutex);
+ }
+
+quit:
+
+ pa_mutex_unlock(mutex);
+
+ pa_log("thread_func() for %s done...", (char*) pa_tls_get(tls));
+}
+
+int main(int argc, char *argv[]) {
+ int i, k;
+ pa_thread* t[THREADS_MAX];
+
+ mutex = pa_mutex_new(0);
+ cond1 = pa_cond_new();
+ cond2 = pa_cond_new();
+ tls = pa_tls_new(pa_xfree);
+
+ for (i = 0; i < THREADS_MAX; i++) {
+ t[i] = pa_thread_new(thread_func, pa_sprintf_malloc("Thread #%i", i+1));
+ assert(t[i]);
+ }
+
+ pa_mutex_lock(mutex);
+
+ pa_log("loop-init");
+
+ for (k = 0; k < 100; k++) {
+ assert(magic_number == 0);
+
+
+ magic_number = (int) rand() % 0x10000;
+
+ pa_log("iteration %i (%i)", k, magic_number);
+
+ pa_cond_signal(cond1, 0);
+
+ pa_cond_wait(cond2, mutex);
+ }
+
+ pa_log("loop-exit");
+
+ magic_number = -1;
+ pa_cond_signal(cond1, 1);
+
+ pa_mutex_unlock(mutex);
+
+ for (i = 0; i < THREADS_MAX; i++)
+ pa_thread_free(t[i]);
+
+ pa_mutex_free(mutex);
+ pa_cond_free(cond1);
+ pa_cond_free(cond2);
+ pa_tls_free(tls);
+
+ return 0;
+}