Thread implementation for Win32.

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1356 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/pulsecore/mutex-win32.c

@@ -0,0 +1,133 @@
+/* $Id$ */
+
+/***
+  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 <windows.h>
+
+#include <pulse/xmalloc.h>
+#include <pulsecore/hashmap.h>
+
+#include "mutex.h"
+
+struct pa_mutex {
+    CRITICAL_SECTION mutex;
+};
+
+struct pa_cond {
+    pa_hashmap *wait_events;
+};
+
+pa_mutex* pa_mutex_new(int recursive) {
+    pa_mutex *m;
+
+    m = pa_xnew(pa_mutex, 1);
+
+    InitializeCriticalSection(&m->mutex);
+
+    return m;
+}
+
+void pa_mutex_free(pa_mutex *m) {
+    assert(m);
+
+    DeleteCriticalSection(&m->mutex);
+    pa_xfree(m);
+}
+
+void pa_mutex_lock(pa_mutex *m) {
+    assert(m);
+
+    EnterCriticalSection(&m->mutex);
+}
+
+void pa_mutex_unlock(pa_mutex *m) {
+    assert(m);
+
+    LeaveCriticalSection(&m->mutex);
+}
+
+pa_cond *pa_cond_new(void) {
+    pa_cond *c;
+
+    c = pa_xnew(pa_cond, 1);
+    c->wait_events = pa_hashmap_new(NULL, NULL);
+    assert(c->wait_events);
+
+    return c;
+}
+
+void pa_cond_free(pa_cond *c) {
+    assert(c);
+
+    pa_hashmap_free(c->wait_events, NULL, NULL);
+    pa_xfree(c);
+}
+
+void pa_cond_signal(pa_cond *c, int broadcast) {
+    assert(c);
+
+    if (pa_hashmap_size(c->wait_events) == 0)
+        return;
+
+    if (broadcast)
+        SetEvent(pa_hashmap_get_first(c->wait_events));
+    else {
+        void *iter;
+        const void *key;
+        HANDLE event;
+
+        iter = NULL;
+        while (1) {
+            pa_hashmap_iterate(c->wait_events, &iter, &key);
+            if (key == NULL)
+                break;
+            event = (HANDLE)pa_hashmap_get(c->wait_events, key);
+            SetEvent(event);
+        }
+    }
+}
+
+int pa_cond_wait(pa_cond *c, pa_mutex *m) {
+    HANDLE event;
+
+    assert(c);
+    assert(m);
+
+    event = CreateEvent(NULL, FALSE, FALSE, NULL);
+    assert(event);
+
+    pa_hashmap_put(c->wait_events, event, event);
+
+    pa_mutex_unlock(m);
+
+    WaitForSingleObject(event, INFINITE);
+
+    pa_mutex_lock(m);
+
+    pa_hashmap_remove(c->wait_events, event);
+
+    CloseHandle(event);
+
+    return 0;
+}