Implement snapshot commands in lttng-sessiond

[lttng-tools.git] / src / bin / lttng-sessiond / consumer.h

diff --git a/src/bin/lttng-sessiond/consumer.h b/src/bin/lttng-sessiond/consumer.h
index af337baa386b61f81e587609a03d3e7ae800d1a2..3c5cf155d07ed14764d9504bbb4f4e0f70d69d95 100644 (file)
--- a/src/bin/lttng-sessiond/consumer.h
+++ b/src/bin/lttng-sessiond/consumer.h
@@ -22,7 +22,10 @@
 #include <common/hashtable/hashtable.h>
 #include <lttng/lttng.h>
 
-#include "health.h"
+#include "snapshot.h"
+
+struct snapshot;
+struct snapshot_output;
 
 enum consumer_dst_type {
        CONSUMER_DST_LOCAL,
@@ -50,6 +53,8 @@ struct consumer_socket {
        unsigned int data_sock_sent;
 
        struct lttng_ht_node_ulong node;
+
+       enum lttng_consumer_type type;
 };
 
 struct consumer_data {
@@ -80,7 +85,9 @@ struct consumer_data {
        pid_t pid;
 
        int err_sock;
+       /* These two sockets uses the cmd_unix_sock_path. */
        int cmd_sock;
+       struct consumer_socket metadata_sock;
 
        /* consumer error and command Unix socket path */
        char err_unix_sock_path[PATH_MAX];
@@ -126,7 +133,7 @@ struct consumer_output {
         * side. It tells the consumer which streams goes to which relayd with this
         * index. The relayd sockets are index with it on the consumer side.
         */
-       int net_seq_index;
+       uint64_t net_seq_index;
 
        /*
         * Subdirectory path name used for both local and network consumer.
@@ -148,12 +155,16 @@ struct consumer_output {
 
 struct consumer_socket *consumer_find_socket(int key,
                struct consumer_output *consumer);
+struct consumer_socket *consumer_find_socket_by_bitness(int bits,
+               struct consumer_output *consumer);
 struct consumer_socket *consumer_allocate_socket(int fd);
 void consumer_add_socket(struct consumer_socket *sock,
                struct consumer_output *consumer);
 void consumer_del_socket(struct consumer_socket *sock,
                struct consumer_output *consumer);
 void consumer_destroy_socket(struct consumer_socket *sock);
+int consumer_copy_sockets(struct consumer_output *dst,
+               struct consumer_output *src);
 
 struct consumer_output *consumer_create_output(enum consumer_dst_type type);
 struct consumer_output *consumer_copy_output(struct consumer_output *obj);
@@ -169,13 +180,13 @@ int consumer_send_stream(struct consumer_socket *sock,
 int consumer_send_channel(struct consumer_socket *sock,
                struct lttcomm_consumer_msg *msg);
 int consumer_send_relayd_socket(struct consumer_socket *consumer_sock,
-               struct lttcomm_sock *sock, struct consumer_output *consumer,
-               enum lttng_stream_type type, unsigned int session_id);
+               struct lttcomm_relayd_sock *rsock, struct consumer_output *consumer,
+               enum lttng_stream_type type, uint64_t session_id);
 int consumer_send_destroy_relayd(struct consumer_socket *sock,
                struct consumer_output *consumer);
 int consumer_recv_status_reply(struct consumer_socket *sock);
 int consumer_recv_status_channel(struct consumer_socket *sock,
-               unsigned long *key, unsigned int *stream_count);
+               uint64_t *key, unsigned int *stream_count);
 void consumer_output_send_destroy_relayd(struct consumer_output *consumer);
 int consumer_create_socket(struct consumer_data *data,
                struct consumer_output *output);
@@ -195,27 +206,45 @@ void consumer_init_ask_channel_comm_msg(struct lttcomm_consumer_msg *msg,
                const char *name,
                uid_t uid,
                gid_t gid,
-               int relayd_id,
-               unsigned long key,
-               unsigned char *uuid);
+               uint64_t relayd_id,
+               uint64_t key,
+               unsigned char *uuid,
+               uint32_t chan_id,
+               uint64_t tracefile_size,
+               uint64_t tracefile_count);
 void consumer_init_stream_comm_msg(struct lttcomm_consumer_msg *msg,
                enum lttng_consumer_command cmd,
-               int channel_key,
-               int stream_key,
+               uint64_t channel_key,
+               uint64_t stream_key,
                int cpu);
 void consumer_init_channel_comm_msg(struct lttcomm_consumer_msg *msg,
                enum lttng_consumer_command cmd,
-               int channel_key,
+               uint64_t channel_key,
                uint64_t session_id,
                const char *pathname,
                uid_t uid,
                gid_t gid,
-               int relayd_id,
+               uint64_t relayd_id,
                const char *name,
                unsigned int nb_init_streams,
                enum lttng_event_output output,
-               int type);
-int consumer_is_data_pending(unsigned int id,
+               int type,
+               uint64_t tracefile_size,
+               uint64_t tracefile_count);
+int consumer_is_data_pending(uint64_t session_id,
                struct consumer_output *consumer);
+int consumer_close_metadata(struct consumer_socket *socket,
+               uint64_t metadata_key);
+int consumer_setup_metadata(struct consumer_socket *socket,
+               uint64_t metadata_key);
+int consumer_push_metadata(struct consumer_socket *socket,
+               uint64_t metadata_key, char *metadata_str, size_t len,
+               size_t target_offset);
+int consumer_flush_channel(struct consumer_socket *socket, uint64_t key);
+
+/* Snapshot command. */
+int consumer_snapshot_channel(struct consumer_socket *socket, uint64_t key,
+               struct snapshot_output *output, int metadata, uid_t uid, gid_t gid,
+               int wait);
 
 #endif /* _CONSUMER_H */