Support snapshot max-size limitation

[lttng-tools.git] / src / common / consumer.h

diff --git a/src/common/consumer.h b/src/common/consumer.h
index a64bcad3bba01975a97609793379baab651dee97..dd26e51834d5738a653380b0ab8e872902d565ed 100644 (file)
--- a/src/common/consumer.h
+++ b/src/common/consumer.h
@@ -216,6 +216,14 @@ struct lttng_consumer_stream {
        gid_t gid;
        /* Network sequence number. Indicating on which relayd socket it goes. */
        uint64_t net_seq_idx;
+       /*
+        * Indicate if this stream was successfully sent to a relayd. This is set
+        * after the refcount of the relayd is incremented and is checked when the
+        * stream is closed before decrementing the refcount in order to avoid an
+        * unbalanced state.
+        */
+       unsigned int sent_to_relayd;
+
        /* Identify if the stream is the metadata */
        unsigned int metadata_flag;
        /* Used when the stream is set for network streaming */
@@ -363,7 +371,7 @@ struct lttng_consumer_local_data {
         *   == 0 (success, FD is left to library)
         *    < 0 (error)
         */
-       int (*on_update_stream)(int sessiond_key, uint32_t state);
+       int (*on_update_stream)(uint64_t sessiond_key, uint32_t state);
        enum lttng_consumer_type type;
        /* socket to communicate errors with sessiond */
        int consumer_error_socket;
@@ -529,7 +537,7 @@ struct lttng_consumer_local_data *lttng_consumer_create(
                        struct lttng_consumer_local_data *ctx),
                int (*recv_channel)(struct lttng_consumer_channel *channel),
                int (*recv_stream)(struct lttng_consumer_stream *stream),
-               int (*update_stream)(int sessiond_key, uint32_t state));
+               int (*update_stream)(uint64_t sessiond_key, uint32_t state));
 void lttng_consumer_destroy(struct lttng_consumer_local_data *ctx);
 ssize_t lttng_consumer_on_read_subbuffer_mmap(
                struct lttng_consumer_local_data *ctx,
@@ -555,7 +563,7 @@ int lttng_consumer_on_recv_stream(struct lttng_consumer_stream *stream);
 int consumer_add_relayd_socket(uint64_t net_seq_idx, int sock_type,
                struct lttng_consumer_local_data *ctx, int sock,
                struct pollfd *consumer_sockpoll, struct lttcomm_relayd_sock *relayd_sock,
-               unsigned int sessiond_id);
+               uint64_t sessiond_id);
 void consumer_flag_relayd_for_destroy(
                struct consumer_relayd_sock_pair *relayd);
 int consumer_data_pending(uint64_t id);
@@ -565,5 +573,7 @@ int consumer_send_status_channel(int sock,
 void notify_thread_del_channel(struct lttng_consumer_local_data *ctx,
                uint64_t key);
 void consumer_destroy_relayd(struct consumer_relayd_sock_pair *relayd);
+unsigned long consumer_get_consumed_maxsize(unsigned long consumed_pos,
+               unsigned long produced_pos, uint64_t max_stream_size);
 
 #endif /* LIB_CONSUMER_H */