From a67c21f093202f142438689d3f7cfbdf4ea82eea Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Sun, 28 Oct 2007 19:13:50 +0000
Subject: merge 'lennart' branch back into trunk.

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1971 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/pulsecore/object.h | 106 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 src/pulsecore/object.h

(limited to 'src/pulsecore/object.h')

diff --git a/src/pulsecore/object.h b/src/pulsecore/object.h
new file mode 100644
index 00000000..562fd113
--- /dev/null
+++ b/src/pulsecore/object.h
@@ -0,0 +1,106 @@
+#ifndef foopulseobjecthfoo
+#define foopulseobjecthfoo
+
+/* $Id$ */
+
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2004-2006 Lennart Poettering
+  Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
+  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.
+***/
+
+#include <string.h>
+#include <sys/types.h>
+
+#include <pulse/xmalloc.h>
+#include <pulsecore/refcnt.h>
+#include <pulsecore/macro.h>
+
+typedef struct pa_object pa_object;
+
+struct pa_object {
+    PA_REFCNT_DECLARE;
+    const char *type_name;
+    void (*free)(pa_object *o);
+    int (*check_type)(const char *type_name);
+};
+
+pa_object *pa_object_new_internal(size_t size, const char *type_name, int (*check_type)(const char *type_name));
+#define pa_object_new(type) ((type*) pa_object_new_internal(sizeof(type), #type, type##_check_type)
+
+#define pa_object_free ((void (*) (pa_object* o)) pa_xfree)
+
+int pa_object_check_type(const char *type);
+
+static inline int pa_object_isinstance(void *o) {
+    pa_object *obj = (pa_object*) o;
+    return obj ? obj->check_type("pa_object") : 0;
+}
+
+pa_object *pa_object_ref(pa_object *o);
+void pa_object_unref(pa_object *o);
+
+static inline int pa_object_refcnt(pa_object *o) {
+    return o ? PA_REFCNT_VALUE(o) : 0;
+}
+
+static inline pa_object* pa_object_cast(void *o) {
+    pa_object *obj = (pa_object*) o;
+    pa_assert(!obj || obj->check_type("pa_object"));
+    return obj;
+}
+
+#define pa_object_assert_ref(o) pa_assert(pa_object_refcnt(o) > 0)
+
+#define PA_OBJECT(o) pa_object_cast(o)
+
+#define PA_DECLARE_CLASS(c)                                             \
+    static inline int c##_isinstance(void *o) {                         \
+        pa_object *obj = (pa_object*) o;                                \
+        return obj ? obj->check_type(#c) : 1;                           \
+    }                                                                   \
+    static inline c* c##_cast(void *o) {                                \
+        pa_assert(c##_isinstance(o));                                   \
+        return (c*) o;                                                  \
+    }                                                                   \
+    static inline c* c##_ref(c *o) {                                    \
+        return (c*) pa_object_ref(PA_OBJECT(o));                        \
+    }                                                                   \
+    static inline void c##_unref(c* o) {                                \
+        pa_object_unref(PA_OBJECT(o));                                  \
+    }                                                                   \
+    static inline int c##_refcnt(c* o) {                                \
+        return pa_object_refcnt(PA_OBJECT(o));                          \
+    }                                                                   \
+    static inline void c##_assert_ref(c *o) {                           \
+        pa_object_assert_ref(PA_OBJECT(o));                             \
+    }                                                                   \
+    struct __stupid_useless_struct_to_allow_trailing_semicolon
+
+#define PA_DEFINE_CHECK_TYPE(c, parent)                                 \
+    int c##_check_type(const char *type) {                              \
+        pa_assert(type);                                                \
+        if (strcmp(type, #c) == 0)                                      \
+            return 1;                                                   \
+        return parent##_check_type(type);                               \
+    }                                                                   \
+    struct __stupid_useless_struct_to_allow_trailing_semicolon
+
+
+#endif
-- 
cgit