QPID-4538 - Renamed Qpid Nexus to Qpid Dispatch

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1448649 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 83 insertions, 0 deletions

diff --git a/qpid/extras/dispatch/src/buffer.c b/qpid/extras/dispatch/src/buffer.c
new file mode 100644
index 0000000000..015711afd9
--- /dev/null
+++ b/qpid/extras/dispatch/src/buffer.c
@@ -0,0 +1,83 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include <qpid/dispatch/buffer.h>
+#include <qpid/dispatch/alloc.h>
+
+static size_t buffer_size = 512;
+static int    size_locked = 0;
+
+ALLOC_DECLARE(dx_buffer_t);
+ALLOC_DEFINE_CONFIG(dx_buffer_t, sizeof(dx_buffer_t), &buffer_size, 0);
+
+
+void dx_buffer_set_size(size_t size)
+{
+    assert(!size_locked);
+    buffer_size = size;
+}
+
+
+dx_buffer_t *dx_allocate_buffer(void)
+{
+    size_locked = 1;
+    dx_buffer_t *buf = new_dx_buffer_t();
+
+    DEQ_ITEM_INIT(buf);
+    buf->size = 0;
+    return buf;
+}
+
+
+void dx_free_buffer(dx_buffer_t *buf)
+{
+    free_dx_buffer_t(buf);
+}
+
+
+unsigned char *dx_buffer_base(dx_buffer_t *buf)
+{
+    return (unsigned char*) &buf[1];
+}
+
+
+unsigned char *dx_buffer_cursor(dx_buffer_t *buf)
+{
+    return ((unsigned char*) &buf[1]) + buf->size;
+}
+
+
+size_t dx_buffer_capacity(dx_buffer_t *buf)
+{
+    return buffer_size - buf->size;
+}
+
+
+size_t dx_buffer_size(dx_buffer_t *buf)
+{
+    return buf->size;
+}
+
+
+void dx_buffer_insert(dx_buffer_t *buf, size_t len)
+{
+    buf->size += len;
+    assert(buf->size <= buffer_size);
+}
+