/*
- * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License, version 2 only, as
- * published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
*
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 51
- * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef LTTNG_BUFFER_REGISTRY_H
#include <common/hashtable/hashtable.h>
#include "consumer.h"
-#include "ust-ctl.h"
+#include "lttng-ust-ctl.h"
#include "ust-registry.h"
struct buffer_reg_stream {
uint64_t consumer_key;
/* Stream registry object of this channel registry. */
struct cds_list_head streams;
+ /* Total number of stream in the list. */
+ uint64_t stream_count;
/* Used to ensure mutual exclusion to the stream's list. */
pthread_mutex_t stream_list_lock;
/* Node for hash table usage. */
struct lttng_ht_node_u64 node;
+ /* Size of subbuffers in this channel. */
+ size_t subbuf_size;
+ /* Number of subbuffers per stream. */
+ size_t num_subbuf;
union {
/* Original object data that MUST be copied over. */
struct lttng_ust_object_data *ust;
* Keys to match this object in a hash table. The following three variables
* identify a unique per UID buffer registry.
*/
- int session_id; /* Unique tracing session id. */
+ uint64_t session_id; /* Unique tracing session id. */
int bits_per_long; /* ABI */
uid_t uid; /* Owner. */
struct lttng_ht_node_u64 node;
/* Node of a linked list used to teardown object at a destroy session. */
struct cds_list_head lnode;
+
+ char root_shm_path[PATH_MAX];
+ char shm_path[PATH_MAX];
};
/*
* Registry object for per PID buffers.
*/
struct buffer_reg_pid {
- int session_id;
+ uint64_t session_id;
struct buffer_reg_session *registry;
/* Indexed by session id. */
- struct lttng_ht_node_ulong node;
+ struct lttng_ht_node_u64 node;
+
+ char root_shm_path[PATH_MAX];
+ char shm_path[PATH_MAX];
};
/* Buffer registry per UID. */
void buffer_reg_init_uid_registry(void);
-int buffer_reg_uid_create(int session_id, uint32_t bits_per_long, uid_t uid,
- enum lttng_domain_type domain, struct buffer_reg_uid **regp);
+int buffer_reg_uid_create(uint64_t session_id, uint32_t bits_per_long, uid_t uid,
+ enum lttng_domain_type domain, struct buffer_reg_uid **regp,
+ const char *root_shm_path, const char *shm_path);
void buffer_reg_uid_add(struct buffer_reg_uid *reg);
-struct buffer_reg_uid *buffer_reg_uid_find(int session_id,
+struct buffer_reg_uid *buffer_reg_uid_find(uint64_t session_id,
uint32_t bits_per_long, uid_t uid);
void buffer_reg_uid_remove(struct buffer_reg_uid *regp);
void buffer_reg_uid_destroy(struct buffer_reg_uid *regp,
/* Buffer registry per PID. */
void buffer_reg_init_pid_registry(void);
-int buffer_reg_pid_create(int session_id, struct buffer_reg_pid **regp);
+int buffer_reg_pid_create(uint64_t session_id, struct buffer_reg_pid **regp,
+ const char *root_shm_path, const char *shm_path);
void buffer_reg_pid_add(struct buffer_reg_pid *reg);
-struct buffer_reg_pid *buffer_reg_pid_find(int session_id);
+struct buffer_reg_pid *buffer_reg_pid_find(uint64_t session_id);
void buffer_reg_pid_remove(struct buffer_reg_pid *regp);
void buffer_reg_pid_destroy(struct buffer_reg_pid *regp);
/* Global registry. */
void buffer_reg_destroy_registries(void);
+int buffer_reg_uid_consumer_channel_key(
+ struct cds_list_head *buffer_reg_uid_list,
+ uint64_t chan_key, uint64_t *consumer_chan_key);
+
#endif /* LTTNG_BUFFER_REGISTRY_H */