diff options
author | Lennart Poettering <lennart@poettering.net> | 2006-08-29 19:51:14 +0000 |
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committer | Lennart Poettering <lennart@poettering.net> | 2006-08-29 19:51:14 +0000 |
commit | b2c341f935bd54eb1b7f80a297e72bf0e6c6dc83 (patch) | |
tree | ca1ac4dd63698766fcb5312ab389194283a5af00 /src/tests | |
parent | 5264d235d25f04d3cd5796e751a66cb92453be73 (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.c | 135 |
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; +} |