# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1349856241 -7200
# Node ID fb07a0ab9a17f47d57ec78d85e584885e0b90a89
# Parent  abae4669fba7d4b455fc5c55f11e8e48e38249b6
added flag field to buffer

diff -r abae4669fba7 -r fb07a0ab9a17 test/buffer_tests.c
--- a/test/buffer_tests.c	Wed Oct 10 09:54:57 2012 +0200
+++ b/test/buffer_tests.c	Wed Oct 10 10:04:01 2012 +0200
@@ -9,7 +9,7 @@
     memset(buffer, 32, 7);
     buffer[7] = 0;
 
-    UcxBuffer *b = ucx_buffer_new(buffer, 16);
+    UcxBuffer *b = ucx_buffer_new(buffer, 16, UCX_BUFFER_DEFAULT);
     int r;
 
     UCX_TEST_BEGIN
@@ -51,7 +51,7 @@
     char *buffer = malloc(16);
     memset(buffer, 32, 16);
 
-    UcxBuffer *b = ucx_buffer_new(buffer, 16);
+    UcxBuffer *b = ucx_buffer_new(buffer, 16, UCX_BUFFER_DEFAULT);
     int r;
 
     UCX_TEST_BEGIN
@@ -79,7 +79,7 @@
         buffer[i] = 40+i;
     }
 
-    UcxBuffer *b = ucx_buffer_new(buffer, 16);
+    UcxBuffer *b = ucx_buffer_new(buffer, 16, UCX_BUFFER_DEFAULT);
     int r;
 
     UCX_TEST_BEGIN
@@ -109,7 +109,7 @@
         buffer[i] = 40+i;
     }
 
-    UcxBuffer *b = ucx_buffer_new(buffer, 16);
+    UcxBuffer *b = ucx_buffer_new(buffer, 16, UCX_BUFFER_DEFAULT);
     int r;
 
     UCX_TEST_BEGIN
@@ -151,7 +151,7 @@
         buffer[i] = 40+i;
     }
 
-    UcxBuffer *b = ucx_buffer_new(buffer, 16);
+    UcxBuffer *b = ucx_buffer_new(buffer, 16, UCX_BUFFER_DEFAULT);
     int r;
 
     UCX_TEST_BEGIN
diff -r abae4669fba7 -r fb07a0ab9a17 ucx/buffer.c
--- a/ucx/buffer.c	Wed Oct 10 09:54:57 2012 +0200
+++ b/ucx/buffer.c	Wed Oct 10 10:04:01 2012 +0200
@@ -7,12 +7,13 @@
     void *space;
     off_t pos;
     size_t length;
-    _Bool autofree;
+    int flags;
 };
 
-UcxBuffer *ucx_buffer_new(void *space, size_t length) {
+UcxBuffer *ucx_buffer_new(void *space, size_t length, int flags) {
     UcxBuffer *buffer = (UcxBuffer*) malloc(sizeof(UcxBuffer));
     if (buffer) {
+        buffer->flags = flags;
         if (!space) {
             buffer->space = malloc(length);
             if (!buffer->space) {
@@ -20,10 +21,9 @@
                 return NULL;
             }
             memset(buffer->space, 0, length);
-            buffer->autofree = 1;
+            buffer->flags |= UCX_BUFFER_AUTOFREE;
         } else {
             buffer->space = space;
-            buffer->autofree = 0;
         }
         buffer->length = length;
 
@@ -34,7 +34,7 @@
 }
 
 void ucx_buffer_free(UcxBuffer *buffer) {
-    if (buffer->autofree) {
+    if ((buffer->flags & UCX_BUFFER_AUTOFREE) > 0) {
         free(buffer->space);
     }
     free(buffer);
diff -r abae4669fba7 -r fb07a0ab9a17 ucx/buffer.h
--- a/ucx/buffer.h	Wed Oct 10 09:54:57 2012 +0200
+++ b/ucx/buffer.h	Wed Oct 10 10:04:01 2012 +0200
@@ -7,11 +7,14 @@
 extern "C" {
 #endif
 
+#define UCX_BUFFER_DEFAULT      0x00
+#define UCX_BUFFER_AUTOFREE     0x01
 
 /* the user shall not modify values */
 typedef struct UcxBuffer UcxBuffer;
 
-UcxBuffer *ucx_buffer_new(void *space, size_t length);
+/* if space is NULL, new space is allocated and the autofree flag is enforced */
+UcxBuffer *ucx_buffer_new(void *space, size_t length, int flags);
 void ucx_buffer_free(UcxBuffer* buffer);
 
 /*