From f44ba092651aa75055e109e04b4164ea92ae7fdc Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 19 Jun 2006 21:53:48 +0000
Subject: big s/polyp/pulse/g

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/pulsecore/queue.c | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 src/pulsecore/queue.c

(limited to 'src/pulsecore/queue.c')

diff --git a/src/pulsecore/queue.c b/src/pulsecore/queue.c
new file mode 100644
index 00000000..93b119eb
--- /dev/null
+++ b/src/pulsecore/queue.c
@@ -0,0 +1,109 @@
+/* $Id$ */
+
+/***
+  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 2.1 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
+  Lesser 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 <assert.h>
+#include <stdlib.h>
+
+#include <pulse/xmalloc.h>
+
+#include "queue.h"
+
+struct queue_entry {
+    struct queue_entry *next;
+    void *data;
+};
+
+struct pa_queue {
+    struct queue_entry *front, *back;
+    unsigned length;
+};
+
+pa_queue* pa_queue_new(void) {
+    pa_queue *q = pa_xnew(pa_queue, 1);
+    q->front = q->back = NULL;
+    q->length = 0;
+    return q;
+}
+
+void pa_queue_free(pa_queue* q, void (*destroy)(void *p, void *userdata), void *userdata) {
+    struct queue_entry *e;
+    assert(q);
+
+    e = q->front;
+    while (e) {
+        struct queue_entry *n = e->next;
+
+        if (destroy)
+            destroy(e->data, userdata);
+
+        pa_xfree(e);
+        e = n;
+    }
+
+    pa_xfree(q);
+}
+
+void pa_queue_push(pa_queue *q, void *p) {
+    struct queue_entry *e;
+
+    e = pa_xnew(struct queue_entry, 1);
+    e->data = p;
+    e->next = NULL;
+
+    if (q->back)
+        q->back->next = e;
+    else {
+        assert(!q->front);
+        q->front = e;
+    }
+
+    q->back = e;
+    q->length++;
+}
+
+void* pa_queue_pop(pa_queue *q) {
+    void *p;
+    struct queue_entry *e;
+    assert(q);
+
+    if (!(e = q->front))
+        return NULL;
+
+    q->front = e->next;
+    if (q->back == e)
+        q->back = NULL;
+
+    p = e->data;
+    pa_xfree(e);
+
+    q->length--;
+    
+    return p;
+}
+
+int pa_queue_is_empty(pa_queue *q) {
+    assert(q);
+    return q->length == 0;
+}
-- 
cgit