[lttng-ust.git] / libcounter / shm_types.h

/*
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 */

#ifndef _LIBCOUNTER_SHM_TYPES_H
#define _LIBCOUNTER_SHM_TYPES_H

#include <stdint.h>
#include <stddef.h>
#include <limits.h>
#include "shm_internal.h"

enum lttng_counter_shm_object_type {
	LTTNG_COUNTER_SHM_OBJECT_SHM,
	LTTNG_COUNTER_SHM_OBJECT_MEM,
};

struct lttng_counter_shm_object {
	enum lttng_counter_shm_object_type type;
	size_t index;	/* within the object table */
	int shm_fd;	/* shm fd */
	char *memory_map;
	size_t memory_map_size;
	uint64_t allocated_len;
	int shm_fd_ownership;
};

struct lttng_counter_shm_object_table {
	size_t size;
	size_t allocated_len;
	struct lttng_counter_shm_object objects[];
};

struct lttng_counter_shm_handle {
	struct lttng_counter_shm_object_table *table;
};

#endif /* _LIBCOUNTER_SHM_TYPES_H */
Commit	Line	Data
ebabbf58	1	/*
c0c0989a	2	* SPDX-License-Identifier: LGPL-2.1-only
ebabbf58 MD	3	*
ebabbf58 MD	4	* Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
ebabbf58 MD	5	*/
ebabbf58 MD	6
c0c0989a MJ	7	#ifndef _LIBCOUNTER_SHM_TYPES_H
	8	#define _LIBCOUNTER_SHM_TYPES_H
	9
ebabbf58 MD	10	#include <stdint.h>
	11	#include <stddef.h>
	12	#include <limits.h>
	13	#include "shm_internal.h"
	14
	15	enum lttng_counter_shm_object_type {
	16	LTTNG_COUNTER_SHM_OBJECT_SHM,
	17	LTTNG_COUNTER_SHM_OBJECT_MEM,
	18	};
	19
	20	struct lttng_counter_shm_object {
	21	enum lttng_counter_shm_object_type type;
	22	size_t index; /* within the object table */
	23	int shm_fd; /* shm fd */
	24	char *memory_map;
	25	size_t memory_map_size;
	26	uint64_t allocated_len;
	27	int shm_fd_ownership;
	28	};
	29
	30	struct lttng_counter_shm_object_table {
	31	size_t size;
	32	size_t allocated_len;
	33	struct lttng_counter_shm_object objects[];
	34	};
	35
	36	struct lttng_counter_shm_handle {
	37	struct lttng_counter_shm_object_table *table;
	38	};
	39
	40	#endif /* _LIBCOUNTER_SHM_TYPES_H */