diff options
Diffstat (limited to 'extras/dispatch/src/buffer.c')
-rw-r--r-- | extras/dispatch/src/buffer.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/extras/dispatch/src/buffer.c b/extras/dispatch/src/buffer.c new file mode 100644 index 0000000000..015711afd9 --- /dev/null +++ b/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); +} + |