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1d498196 MD |
1 | #ifndef _LIBRINGBUFFER_SHM_TYPES_H |
2 | #define _LIBRINGBUFFER_SHM_TYPES_H | |
3 | ||
4 | /* | |
5 | * libringbuffer/shm_types.h | |
6 | * | |
e92f3e28 | 7 | * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
1d498196 | 8 | * |
e92f3e28 MD |
9 | * This library is free software; you can redistribute it and/or |
10 | * modify it under the terms of the GNU Lesser General Public | |
11 | * License as published by the Free Software Foundation; only | |
12 | * version 2.1 of the License. | |
13 | * | |
14 | * This library is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * Lesser General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Lesser General Public | |
20 | * License along with this library; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
1d498196 MD |
22 | */ |
23 | ||
24 | #include <stdint.h> | |
b4051ad8 | 25 | #include <stddef.h> |
a9ff648c | 26 | #include <limits.h> |
1d498196 MD |
27 | #include "shm_internal.h" |
28 | ||
29 | struct channel; | |
30 | ||
74d81a6c MD |
31 | enum shm_object_type { |
32 | SHM_OBJECT_SHM, | |
33 | SHM_OBJECT_MEM, | |
34 | }; | |
35 | ||
1d498196 | 36 | struct shm_object { |
74d81a6c | 37 | enum shm_object_type type; |
1d498196 MD |
38 | size_t index; /* within the object table */ |
39 | int shm_fd; /* shm fd */ | |
40 | int wait_fd[2]; /* fd for wait/wakeup */ | |
41 | char *memory_map; | |
0cdad3b1 MD |
42 | size_t memory_map_size; |
43 | uint64_t allocated_len; | |
5ea386c3 | 44 | int shm_fd_ownership; |
1d498196 MD |
45 | }; |
46 | ||
47 | struct shm_object_table { | |
48 | size_t size; | |
49 | size_t allocated_len; | |
50 | struct shm_object objects[]; | |
51 | }; | |
52 | ||
38fae1d3 | 53 | struct lttng_ust_shm_handle { |
1d498196 MD |
54 | struct shm_object_table *table; |
55 | DECLARE_SHMP(struct channel, chan); | |
1d498196 MD |
56 | }; |
57 | ||
58 | #endif /* _LIBRINGBUFFER_SHM_TYPES_H */ |