X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fbuffer-registry.h;h=d0d1575fd47e478ea57b6ae91aca6af6effd3189;hp=0bf439d78ce692938f605fde915495d2e3ef7754;hb=766048521f3bc7beb1209e2bb939ca2b42532a52;hpb=5c786dedd0156b93984f89ba47ec841277ed7dae

diff --git a/src/bin/lttng-sessiond/buffer-registry.h b/src/bin/lttng-sessiond/buffer-registry.h
index 0bf439d78..d0d1575fd 100644
--- a/src/bin/lttng-sessiond/buffer-registry.h
+++ b/src/bin/lttng-sessiond/buffer-registry.h
@@ -49,6 +49,10 @@ struct buffer_reg_channel {
 	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;
@@ -84,6 +88,9 @@ 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];
 };
 
 /*
@@ -96,12 +103,16 @@ struct buffer_reg_pid {
 
 	/* Indexed by session id. */
 	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(uint64_t session_id, uint32_t bits_per_long, uid_t uid,
-		enum lttng_domain_type domain, struct buffer_reg_uid **regp);
+		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(uint64_t session_id,
 		uint32_t bits_per_long, uid_t uid);
@@ -111,7 +122,8 @@ 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(uint64_t 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(uint64_t session_id);
 void buffer_reg_pid_remove(struct buffer_reg_pid *regp);
@@ -138,4 +150,8 @@ void buffer_reg_stream_destroy(struct buffer_reg_stream *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 */