From bef6322859a5dc01e35d884de7afd2eabb1d9e4d Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 17 May 2007 22:22:53 +0000
Subject: at basic locking/threading support

git-svn-id: file:///home/lennart/svn/public/libsydney/trunk@26 9ba3c220-e4d3-45a2-8aa3-73fcc9aff6ce
---
 mutex.c | 86 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 mutex.c

(limited to 'mutex.c')

diff --git a/mutex.c b/mutex.c
new file mode 100644
index 0000000..8674fff
--- /dev/null
+++ b/mutex.c
@@ -0,0 +1,86 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <assert.h>
+#include <pthread.h>
+
+#include "macro.h"
+#include "malloc.h"
+#include "mutex.h"
+
+struct sa_mutex {
+    pthread_mutex_t mutex;
+};
+
+struct sa_cond {
+    pthread_cond_t cond;
+};
+
+sa_mutex_t* sa_mutex_new(int recursive) {
+    sa_mutex_t *m;
+    pthread_mutexattr_t attr;
+
+    pthread_mutexattr_init(&attr);
+
+    if (recursive)
+        sa_assert_success(pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE));
+
+    if (!(m = sa_new(sa_mutex_t, 1)))
+        return NULL;
+
+    sa_assert_success(pthread_mutex_init(&m->mutex, &attr));
+    return m;
+}
+
+void sa_mutex_free(sa_mutex_t *m) {
+    assert(m);
+
+    sa_assert_success(pthread_mutex_destroy(&m->mutex));
+    sa_free(m);
+}
+
+void sa_mutex_lock(sa_mutex_t *m) {
+    assert(m);
+
+    sa_assert_success(pthread_mutex_lock(&m->mutex));
+}
+
+void sa_mutex_unlock(sa_mutex_t *m) {
+    assert(m);
+
+    sa_assert_success(pthread_mutex_unlock(&m->mutex));
+}
+
+sa_cond_t *sa_cond_new(void) {
+    sa_cond_t *c;
+
+    if (!(c = sa_new(sa_cond_t, 1)))
+        return NULL;
+
+    sa_assert_success(pthread_cond_init(&c->cond, NULL));
+    return c;
+}
+
+void sa_cond_free(sa_cond_t *c) {
+    assert(c);
+
+    sa_assert_success(pthread_cond_destroy(&c->cond));
+    sa_free(c);
+}
+
+void sa_cond_signal(sa_cond_t *c, int broadcast) {
+    assert(c);
+
+    if (broadcast)
+        sa_assert_success(pthread_cond_broadcast(&c->cond));
+    else
+        sa_assert_success(pthread_cond_signal(&c->cond));
+}
+
+int sa_cond_wait(sa_cond_t *c, sa_mutex_t *m) {
+    assert(c);
+    assert(m);
+
+    return pthread_cond_wait(&c->cond, &m->mutex);
+}
-- 
cgit