X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fcmd.h;h=a59bc220fe8109cde78097e562070a87931976a7;hp=6a6c87eaa0b6ea303f11afb63e27c8243bc23857;hb=aa74bd72a737b6d641957d636f7b59f9a8a36b70;hpb=90936dcf0968343f20b2f6fd365b9c015cdb9717 diff --git a/src/bin/lttng-sessiond/cmd.h b/src/bin/lttng-sessiond/cmd.h index 6a6c87eaa..a59bc220f 100644 --- a/src/bin/lttng-sessiond/cmd.h +++ b/src/bin/lttng-sessiond/cmd.h @@ -20,9 +20,24 @@ #include "context.h" #include "session.h" +#include "lttng-sessiond.h" struct notification_thread_handle; +/* + * A callback (and associated user data) that should be run after a command + * has been executed. No locks should be taken while executing this handler. + * + * The command's reply should not be sent until the handler has run and + * completed successfully. On failure, the handler's return code should + * be the only reply sent to the client. + */ +typedef enum lttng_error_code (*completion_handler_function)(void *); +struct cmd_completion_handler { + completion_handler_function run; + void *data; +}; + /* * Init the command subsystem. Must be called before using any of the functions * above. This is called in the main() of the session daemon. @@ -30,18 +45,17 @@ struct notification_thread_handle; void cmd_init(void); /* Session commands */ -int cmd_create_session_uri(char *name, struct lttng_uri *uris, - size_t nb_uri, lttng_sock_cred *creds, unsigned int live_timer); -int cmd_create_session_snapshot(char *name, struct lttng_uri *uris, - size_t nb_uri, lttng_sock_cred *creds); -int cmd_destroy_session(struct ltt_session *session, int wpipe, - struct notification_thread_handle *notification_thread_handle); +enum lttng_error_code cmd_create_session(struct command_ctx *cmd_ctx, int sock, + struct lttng_session_descriptor **return_descriptor); +int cmd_destroy_session(struct ltt_session *session, + struct notification_thread_handle *notification_thread_handle, + int *sock_fd); /* Channel commands */ int cmd_disable_channel(struct ltt_session *session, enum lttng_domain_type domain, char *channel_name); int cmd_enable_channel(struct ltt_session *session, - struct lttng_domain *domain, struct lttng_channel *attr, + const struct lttng_domain *domain, const struct lttng_channel *attr, int wpipe); int cmd_track_pid(struct ltt_session *session, enum lttng_domain_type domain, int pid); @@ -51,14 +65,14 @@ int cmd_untrack_pid(struct ltt_session *session, enum lttng_domain_type domain, /* Event commands */ int cmd_disable_event(struct ltt_session *session, enum lttng_domain_type domain, - char *channel_name, - struct lttng_event *event); + const char *channel_name, + const struct lttng_event *event); int cmd_add_context(struct ltt_session *session, enum lttng_domain_type domain, - char *channel_name, struct lttng_event_context *ctx, int kwpipe); + char *channel_name, const struct lttng_event_context *ctx, int kwpipe); int cmd_set_filter(struct ltt_session *session, enum lttng_domain_type domain, char *channel_name, struct lttng_event *event, struct lttng_filter_bytecode *bytecode); -int cmd_enable_event(struct ltt_session *session, struct lttng_domain *domain, +int cmd_enable_event(struct ltt_session *session, const struct lttng_domain *domain, char *channel_name, struct lttng_event *event, char *filter_expression, struct lttng_filter_bytecode *filter, @@ -87,8 +101,8 @@ ssize_t cmd_list_channels(enum lttng_domain_type domain, struct ltt_session *session, struct lttng_channel **channels); ssize_t cmd_list_domains(struct ltt_session *session, struct lttng_domain **domains); -void cmd_list_lttng_sessions(struct lttng_session *sessions, uid_t uid, - gid_t gid); +void cmd_list_lttng_sessions(struct lttng_session *sessions, + size_t session_count, uid_t uid, gid_t gid); ssize_t cmd_list_tracepoint_fields(enum lttng_domain_type domain, struct lttng_event_field **fields); ssize_t cmd_list_tracepoints(enum lttng_domain_type domain, @@ -103,11 +117,11 @@ int cmd_data_pending(struct ltt_session *session); /* Snapshot */ int cmd_snapshot_add_output(struct ltt_session *session, - struct lttng_snapshot_output *output, uint32_t *id); + const struct lttng_snapshot_output *output, uint32_t *id); int cmd_snapshot_del_output(struct ltt_session *session, - struct lttng_snapshot_output *output); + const struct lttng_snapshot_output *output); int cmd_snapshot_record(struct ltt_session *session, - struct lttng_snapshot_output *output, int wait); + const struct lttng_snapshot_output *output, int wait); int cmd_set_session_shm_path(struct ltt_session *session, const char *shm_path); @@ -120,14 +134,16 @@ int cmd_unregister_trigger(struct command_ctx *cmd_ctx, int sock, struct notification_thread_handle *notification_thread_handle); int cmd_rotate_session(struct ltt_session *session, - struct lttng_rotate_session_return *rotate_return); + struct lttng_rotate_session_return *rotate_return, + bool quiet_rotation); int cmd_rotate_get_info(struct ltt_session *session, struct lttng_rotation_get_info_return *info_return, uint64_t rotate_id); -int cmd_session_get_current_output(struct ltt_session *session, - struct lttng_session_get_current_output_return *output_return); -int cmd_rotation_set_schedule(struct ltt_session *session, uint64_t timer_us, - uint64_t size, +int cmd_rotation_set_schedule(struct ltt_session *session, + bool activate, enum lttng_rotation_schedule_type schedule_type, + uint64_t value, struct notification_thread_handle *notification_thread_handle); +const struct cmd_completion_handler *cmd_pop_completion_handler(void); + #endif /* CMD_H */