1 /******************************************************************************
3 * Copyright (C) 2014 Google, Inc.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 ******************************************************************************/
25 typedef void *(*alloc_fn)(size_t size);
26 typedef void (*free_fn)(void *ptr);
33 // allocator_t abstractions for the osi_*alloc and osi_free functions
34 extern const allocator_t allocator_malloc;
35 extern const allocator_t allocator_calloc;
37 char *osi_strdup(const char *str);
38 char *osi_strndup(const char *str, size_t len);
40 void *osi_malloc(size_t size);
41 void *osi_calloc(size_t size);
42 void osi_free(void *ptr);
45 // TODO: Functions osi_getbuf(), osi_freebuf() and osi_get_buf_size() below
49 // Allocate a buffer of size |size|. Return the allocated buffer if there
50 // is enough memory, otherwise NULL.
51 void *osi_getbuf(uint16_t size);
53 // Free a buffer that was previously allocated with function |osi_getbuf|.
54 void osi_freebuf(void *ptr);
56 // Get the size of the buffer previously allocated with function |osi_getbuf|
57 uint16_t osi_get_buf_size(void *ptr);