lib: field path: have a specific item for "current array element"
[babeltrace.git] / include / babeltrace / fd-cache-internal.h
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1#ifndef BABELTRACE_FD_CACHE_INTERNAL_H
2#define BABELTRACE_FD_CACHE_INTERNAL_H
3/*
4 * fd-cache-internal.h
5 *
6 * Babeltrace - File descriptor cache
7 *
8 * Copyright 2019 Francis Deslauriers <francis.deslauriers@efficios.com>
9 *
10 * Author: Francis Deslauriers <francis.deslauriers@efficios.com>
11 *
12 * Permission is hereby granted, free of charge, to any person obtaining a copy
13 * of this software and associated documentation files (the "Software"), to deal
14 * in the Software without restriction, including without limitation the rights
15 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
16 * copies of the Software, and to permit persons to whom the Software is
17 * furnished to do so, subject to the following conditions:
18 *
19 * The above copyright notice and this permission notice shall be included in
20 * all copies or substantial portions of the Software.
21 *
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
25 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
27 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28 * SOFTWARE.
29 */
30
31#include <babeltrace/babeltrace-internal.h>
32
33struct bt_fd_cache_handle {
34 int fd;
35};
36
37struct bt_fd_cache {
38 GHashTable *cache;
39};
40
41static inline
42int bt_fd_cache_handle_get_fd(struct bt_fd_cache_handle *handle)
43{
44 return handle->fd;
45}
46
47BT_HIDDEN
48int bt_fd_cache_init(struct bt_fd_cache *fdc);
49
50BT_HIDDEN
51void bt_fd_cache_fini(struct bt_fd_cache *fdc);
52
53BT_HIDDEN
54struct bt_fd_cache_handle *bt_fd_cache_get_handle(struct bt_fd_cache *fdc,
55 const char *path);
56
57BT_HIDDEN
58void bt_fd_cache_put_handle(struct bt_fd_cache *fdc,
59 struct bt_fd_cache_handle *handle);
60
61#endif /* BABELTRACE_FD_CACHE_INTERNAL_H */
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