X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fbuffer-registry.h;h=0812414e5b4f260253f10f58d5dad2cbf4035e43;hp=4b19f7190f17189b17ce54e3db5d368d4e5ac1e3;hb=d1ba29d290281cf72ca3ec7b0222b336c747e925;hpb=7972aab22f74b18faa168c0482216a3dd711a075

diff --git a/src/bin/lttng-sessiond/buffer-registry.h b/src/bin/lttng-sessiond/buffer-registry.h
index 4b19f7190..0812414e5 100644
--- a/src/bin/lttng-sessiond/buffer-registry.h
+++ b/src/bin/lttng-sessiond/buffer-registry.h
@@ -1,31 +1,21 @@
 /*
- * 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
 #define LTTNG_BUFFER_REGISTRY_H
 
 #include <stdint.h>
-#include <lttng/ust-ctl.h>
 #include <urcu/list.h>
 
 #include <lttng/lttng.h>
 #include <common/hashtable/hashtable.h>
 
 #include "consumer.h"
+#include "lttng-ust-ctl.h"
 #include "ust-registry.h"
 
 struct buffer_reg_stream {
@@ -43,10 +33,16 @@ struct buffer_reg_channel {
 	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;
@@ -71,7 +67,7 @@ struct buffer_reg_uid {
 	 * 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. */
 
@@ -82,26 +78,33 @@ struct buffer_reg_uid {
 	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,
@@ -109,9 +112,10 @@ 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);
 
@@ -133,11 +137,11 @@ void buffer_reg_stream_add(struct buffer_reg_stream *stream,
 void buffer_reg_stream_destroy(struct buffer_reg_stream *regp,
 		enum lttng_domain_type domain);
 
-/* Session */
-void buffer_reg_session_destroy(struct buffer_reg_session *regp,
-		enum lttng_domain_type domain);
-
 /* 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 */