From 327e0cd8e1e81999dd855e38d3cb3b414aeadc7a Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 29 Aug 2006 01:16:47 +0000
Subject: modify memory block reference counting to use the new reference
 counting API

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1342 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/pulsecore/memblock.c | 24 ++++++++++++------------
 src/pulsecore/memblock.h |  3 ++-
 src/pulsecore/memchunk.c |  6 ++++--
 3 files changed, 18 insertions(+), 15 deletions(-)

(limited to 'src')

diff --git a/src/pulsecore/memblock.c b/src/pulsecore/memblock.c
index 286f7b5a..516ade13 100644
--- a/src/pulsecore/memblock.c
+++ b/src/pulsecore/memblock.c
@@ -170,7 +170,7 @@ static pa_memblock *memblock_new_appended(pa_mempool *p, size_t length) {
     b = pa_xmalloc(sizeof(pa_memblock) + length);
     b->type = PA_MEMBLOCK_APPENDED;
     b->read_only = 0;
-    b->ref = 1;
+    PA_REFCNT_INIT(b);
     b->length = length;
     b->data = (uint8_t*) b + sizeof(pa_memblock);
     b->pool = p;
@@ -253,7 +253,7 @@ pa_memblock *pa_memblock_new_pool(pa_mempool *p, size_t length) {
 
     b->length = length;
     b->read_only = 0;
-    b->ref = 1;
+    PA_REFCNT_INIT(b);
     b->pool = p;
 
     stat_add(b);
@@ -270,7 +270,7 @@ pa_memblock *pa_memblock_new_fixed(pa_mempool *p, void *d, size_t length, int re
     b = pa_xnew(pa_memblock, 1);
     b->type = PA_MEMBLOCK_FIXED;
     b->read_only = read_only;
-    b->ref = 1;
+    PA_REFCNT_INIT(b);
     b->length = length;
     b->data = d;
     b->pool = p;
@@ -290,7 +290,7 @@ pa_memblock *pa_memblock_new_user(pa_mempool *p, void *d, size_t length, void (*
     b = pa_xnew(pa_memblock, 1);
     b->type = PA_MEMBLOCK_USER;
     b->read_only = read_only;
-    b->ref = 1;
+    PA_REFCNT_INIT(b);
     b->length = length;
     b->data = d;
     b->per_type.user.free_cb = free_cb;
@@ -302,17 +302,17 @@ pa_memblock *pa_memblock_new_user(pa_mempool *p, void *d, size_t length, void (*
 
 pa_memblock* pa_memblock_ref(pa_memblock*b) {
     assert(b);
-    assert(b->ref >= 1);
-    
-    b->ref++;
+    assert(PA_REFCNT_VALUE(b) > 0);
+
+    PA_REFCNT_INC(b);
     return b;
 }
 
 void pa_memblock_unref(pa_memblock*b) {
     assert(b);
-    assert(b->ref >= 1);
+    assert(PA_REFCNT_VALUE(b) > 0);
 
-    if ((--(b->ref)) > 0)
+    if (PA_REFCNT_DEC(b) > 0)
         return;
     
     stat_remove(b);
@@ -403,10 +403,10 @@ finish:
 
 void pa_memblock_unref_fixed(pa_memblock *b) {
     assert(b);
-    assert(b->ref >= 1);
+    assert(PA_REFCNT_VALUE(b) > 0);
     assert(b->type == PA_MEMBLOCK_FIXED);
 
-    if (b->ref > 1)
+    if (PA_REFCNT_VALUE(b) > 1)
         memblock_make_local(b);
 
     pa_memblock_unref(b);
@@ -615,7 +615,7 @@ pa_memblock* pa_memimport_get(pa_memimport *i, uint32_t block_id, uint32_t shm_i
     b = pa_xnew(pa_memblock, 1);
     b->type = PA_MEMBLOCK_IMPORTED;
     b->read_only = 1;
-    b->ref = 1;
+    PA_REFCNT_INIT(b);
     b->length = size;
     b->data = (uint8_t*) seg->memory.ptr + offset;
     b->pool = i->pool;
diff --git a/src/pulsecore/memblock.h b/src/pulsecore/memblock.h
index 620bf726..60a0c900 100644
--- a/src/pulsecore/memblock.h
+++ b/src/pulsecore/memblock.h
@@ -26,6 +26,7 @@
 #include <inttypes.h>
 
 #include <pulsecore/llist.h>
+#include <pulsecore/refcnt.h>
 
 /* A pa_memblock is a reference counted memory block. PulseAudio
  * passed references to pa_memblocks around instead of copying
@@ -56,7 +57,7 @@ typedef void (*pa_memexport_revoke_cb_t)(pa_memexport *e, uint32_t block_id, voi
 struct pa_memblock {
     pa_memblock_type_t type;
     int read_only; /* boolean */
-    unsigned ref;  /* the reference counter */
+    PA_REFCNT_DECLARE; /* the reference counter */
     size_t length;
     void *data;
     pa_mempool *pool;
diff --git a/src/pulsecore/memchunk.c b/src/pulsecore/memchunk.c
index bcf0ce04..1dbad2b9 100644
--- a/src/pulsecore/memchunk.c
+++ b/src/pulsecore/memchunk.c
@@ -38,9 +38,11 @@ void pa_memchunk_make_writable(pa_memchunk *c, size_t min) {
     
     assert(c);
     assert(c->memblock);
-    assert(c->memblock->ref >= 1);
+    assert(PA_REFCNT_VALUE(c->memblock) > 0);
 
-    if (c->memblock->ref == 1 && !c->memblock->read_only && c->memblock->length >= c->index+min)
+    if (PA_REFCNT_VALUE(c->memblock) == 1 &&
+        !c->memblock->read_only &&
+        c->memblock->length >= c->index+min)
         return;
 
     l = c->length;
-- 
cgit