#include <common/defaults.h>
#include <common/compat/uuid.h>
#include <common/macros.h>
+#include <common/optional.h>
#include <arpa/inet.h>
#include <netinet/in.h>
RELAYD_STREAMS_SENT = 16,
/* Ask the relay to reset the metadata trace file (2.8+) */
RELAYD_RESET_METADATA = 17,
- /* Ask the relay to rotate a stream file (2.11+) */
- RELAYD_ROTATE_STREAM = 18,
- /* Rename a chunk after the rotation is completed (2.11+) */
- RELAYD_ROTATE_RENAME = 19,
- /* Check if a chunk has data pending (2.11+) */
- RELAYD_ROTATE_PENDING = 20,
- /* Create a folder on the relayd FS (2.11+) */
- RELAYD_MKDIR = 21,
+ /* Ask the relay to rotate a set of stream files (2.11+) */
+ RELAYD_ROTATE_STREAMS = 18,
+ /* Ask the relay to create a trace chunk (2.11+) */
+ RELAYD_CREATE_TRACE_CHUNK = 19,
+ /* Ask the relay to close a trace chunk (2.11+) */
+ RELAYD_CLOSE_TRACE_CHUNK = 20,
+ /* Ask the relay whether a trace chunk exists (2.11+) */
+ RELAYD_TRACE_CHUNK_EXISTS = 21,
};
/*
*/
enum lttcomm_return_code {
LTTCOMM_CONSUMERD_SUCCESS = 0, /* Everything went fine. */
- LTTCOMM_CONSUMERD_COMMAND_SOCK_READY = 1, /* Command socket ready */
+ /*
+ * Some code paths use -1 to express an error, others
+ * negate this consumer return code. Starting codes at
+ * 100 ensures there is no mix-up between this error value
+ * and legitimate status codes.
+ */
+ LTTCOMM_CONSUMERD_COMMAND_SOCK_READY = 100, /* Command socket ready */
LTTCOMM_CONSUMERD_SUCCESS_RECV_FD, /* Success on receiving fds */
LTTCOMM_CONSUMERD_ERROR_RECV_FD, /* Error on receiving fds */
LTTCOMM_CONSUMERD_ERROR_RECV_CMD, /* Error on receiving command */
LTTCOMM_CONSUMERD_CHAN_NOT_FOUND, /* Channel not found. */
LTTCOMM_CONSUMERD_ALREADY_SET, /* Resource already set. */
LTTCOMM_CONSUMERD_ROTATION_FAIL, /* Rotation has failed. */
- LTTCOMM_CONSUMERD_ROTATE_RENAME_FAILED, /* Rotation rename has failed. */
- LTTCOMM_CONSUMERD_ROTATION_PENDING_LOCAL_FAILED, /* Rotation pending relay failed. */
- LTTCOMM_CONSUMERD_ROTATION_PENDING_RELAY_FAILED, /* Rotation pending relay failed. */
- LTTCOMM_CONSUMERD_MKDIR_FAILED, /* mkdir has failed. */
LTTCOMM_CONSUMERD_SNAPSHOT_FAILED, /* snapshot has failed. */
+ LTTCOMM_CONSUMERD_CREATE_TRACE_CHUNK_FAILED,/* Trace chunk creation failed. */
+ LTTCOMM_CONSUMERD_CLOSE_TRACE_CHUNK_FAILED, /* Trace chunk creation failed. */
+ LTTCOMM_CONSUMERD_INVALID_PARAMETERS, /* Invalid parameters. */
+ LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_LOCAL, /* Trace chunk exists on consumer daemon. */
+ LTTCOMM_CONSUMERD_TRACE_CHUNK_EXISTS_REMOTE,/* Trace chunk exists on relay daemon. */
+ LTTCOMM_CONSUMERD_UNKNOWN_TRACE_CHUNK, /* Unknown trace chunk. */
/* MUST be last element */
LTTCOMM_NR, /* Last element */
uint32_t userspace_probe_location_len;
} LTTNG_PACKED;
+/*
+ * Command header of the reply to an LTTNG_DESTROY_SESSION command.
+ */
+struct lttcomm_session_destroy_command_header {
+ /* enum lttng_session */
+ int32_t rotation_state;
+};
+
/*
* Data structure for the response from sessiond to the lttng client.
*/
struct {
uint64_t channel_key;
uint64_t session_id;
+ /* ID of the session's current trace chunk. */
+ LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED chunk_id;
char pathname[PATH_MAX];
- uint32_t uid;
- uint32_t gid;
uint64_t relayd_id;
/* nb_init_streams is the number of streams open initially. */
uint32_t nb_init_streams;
int32_t cpu; /* On which CPU this stream is assigned. */
/* Tells the consumer if the stream should be or not monitored. */
uint32_t no_monitor;
- /*
- * The archive id that was "current" at the time this
- * stream was created. This is used to determine
- * whether a rotation request was sent before or after
- * the creation of a stream.
- */
- uint64_t trace_archive_id;
} LTTNG_PACKED stream; /* Only used by Kernel. */
struct {
uint64_t net_index;
uint64_t session_id; /* Tracing session id */
char pathname[PATH_MAX]; /* Channel file path. */
char name[LTTNG_SYMBOL_NAME_LEN]; /* Channel name. */
- uint32_t uid; /* User ID of the session */
- uint32_t gid; /* Group ID ot the session */
+ /* Credentials used to open the UST buffer shared mappings. */
+ struct {
+ uint32_t uid;
+ uint32_t gid;
+ } LTTNG_PACKED buffer_credentials;
uint64_t relayd_id; /* Relayd id if apply. */
uint64_t key; /* Unique channel key. */
+ /* ID of the session's current trace chunk. */
+ LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED chunk_id;
unsigned char uuid[UUID_LEN]; /* uuid for ust tracer. */
uint32_t chan_id; /* Channel ID on the tracer side. */
uint64_t tracefile_size; /* bytes */
*/
uint32_t ust_app_uid;
int64_t blocking_timeout;
- /*
- * The archive id that was "current" at the time this
- * channel was created. This is used to determine
- * whether a rotation request was sent before or after
- * the creation of a channel.
- */
- uint64_t trace_archive_id;
char root_shm_path[PATH_MAX];
char shm_path[PATH_MAX];
} LTTNG_PACKED ask_channel;
uint64_t relayd_id; /* Relayd id if apply. */
uint64_t key;
uint64_t nb_packets_per_stream;
- /*
- * The session's current trace archive id is propagated
- * since a snapshot triggers the creation of an
- * ephemeral metadata stream.
- */
- uint64_t trace_archive_id;
} LTTNG_PACKED snapshot_channel;
struct {
uint64_t channel_key;
uint64_t session_id;
} LTTNG_PACKED regenerate_metadata;
struct {
- char pathname[PATH_MAX];
uint32_t metadata; /* This is a metadata channel. */
uint64_t relayd_id; /* Relayd id if apply. */
uint64_t key;
- uint64_t new_chunk_id;
} LTTNG_PACKED rotate_channel;
- struct {
- char old_path[LTTNG_PATH_MAX];
- char new_path[LTTNG_PATH_MAX];
- uint64_t relayd_id; /* Relayd id if apply. */
- uint64_t session_id;
- uint32_t uid;
- uint32_t gid;
- } LTTNG_PACKED rotate_rename;
struct {
uint64_t session_id;
uint64_t chunk_id;
uint64_t chunk_id;
} LTTNG_PACKED check_rotation_pending_relay;
struct {
- char path[LTTNG_PATH_MAX];
- uint64_t relayd_id; /* Relayd id if apply. */
+ /*
+ * Relayd id, if applicable (remote).
+ *
+ * A directory file descriptor referring to the chunk's
+ * output folder is transmitted if the chunk is local
+ * (relayd_id unset).
+ *
+ * `override_name` is left NULL (all-zeroes) if the
+ * chunk's name is not overriden.
+ */
+ LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id;
+ char override_name[LTTNG_NAME_MAX];
uint64_t session_id;
- uint32_t uid;
- uint32_t gid;
- } LTTNG_PACKED mkdir;
+ uint64_t chunk_id;
+ uint64_t creation_timestamp;
+ LTTNG_OPTIONAL_COMM(struct {
+ uint32_t uid;
+ uint32_t gid;
+ } LTTNG_PACKED ) LTTNG_PACKED credentials;
+ } LTTNG_PACKED create_trace_chunk;
+ struct {
+ LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id;
+ uint64_t session_id;
+ uint64_t chunk_id;
+ uint64_t close_timestamp;
+ /* enum lttng_trace_chunk_command_type */
+ LTTNG_OPTIONAL_COMM(uint32_t) LTTNG_PACKED close_command;
+ } LTTNG_PACKED close_trace_chunk;
+ struct {
+ LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED relayd_id;
+ uint64_t session_id;
+ uint64_t chunk_id;
+ } LTTNG_PACKED trace_chunk_exists;
+ struct {
+ lttng_uuid sessiond_uuid;
+ } LTTNG_PACKED init;
} u;
} LTTNG_PACKED;
projects / lttng-tools.git / blobdiff