#ifndef _RELAYD_COMM
#define _RELAYD_COMM
-#define _GNU_SOURCE
-
#include <limits.h>
#include <stdint.h>
#include <lttng/lttng.h>
+#include <common/defaults.h>
+#include <common/index/ctf-index.h>
+#include <common/macros.h>
+#include <common/compat/uuid.h>
+#include <common/optional.h>
+
+#define RELAYD_VERSION_COMM_MAJOR VERSION_MAJOR
+#define RELAYD_VERSION_COMM_MINOR VERSION_MINOR
+
+#define RELAYD_COMM_LTTNG_HOST_NAME_MAX_2_4 64
+#define RELAYD_COMM_LTTNG_NAME_MAX_2_4 255
+#define RELAYD_COMM_LTTNG_PATH_MAX 4096
+#define RELAYD_COMM_DEFAULT_STREAM_NAME_LEN 264 /* 256 + 8 */
/*
* lttng-relayd communication header.
/* Circuit ID not used for now so always ignored */
uint64_t circuit_id;
uint64_t data_size; /* data size following this header */
- uint32_t cmd; /* enum lttcomm_sessiond_command */
+ uint32_t cmd; /* enum lttcomm_relayd_command */
uint32_t cmd_version; /* command version */
-} __attribute__ ((__packed__));
+} LTTNG_PACKED;
/*
* lttng-relayd data header.
/* Circuit ID not used for now so always ignored */
uint64_t circuit_id;
uint64_t stream_id; /* Stream ID known by the relayd */
- uint64_t net_seq_num; /* Network seq. number for UDP. */
+ uint64_t net_seq_num; /* Network sequence number, per stream. */
uint32_t data_size; /* data size following this header */
-} __attribute__ ((__packed__));
+ uint32_t padding_size; /* Size of 0 padding the data */
+} LTTNG_PACKED;
-#if 0
/*
- * Used to create a session between the relay and the sessiond.
+ * Reply from a create session command.
*/
-struct lttcomm_relayd_create_session {
- char hostname[LTTNG_MAX_DNNAME];
- char session_name[NAME_MAX];
-};
-#endif
+struct lttcomm_relayd_status_session {
+ uint64_t session_id;
+ uint32_t ret_code;
+} LTTNG_PACKED;
/*
* Used to add a stream on the relay daemon.
*/
struct lttcomm_relayd_add_stream {
- char channel_name[LTTNG_SYMBOL_NAME_LEN];
- char pathname[PATH_MAX];
-} __attribute__ ((__packed__));
+ char channel_name[RELAYD_COMM_DEFAULT_STREAM_NAME_LEN];
+ char pathname[RELAYD_COMM_LTTNG_PATH_MAX];
+} LTTNG_PACKED;
+
+/*
+ * Used to add a stream on the relay daemon.
+ * Protocol version 2.2
+ */
+struct lttcomm_relayd_add_stream_2_2 {
+ char channel_name[RELAYD_COMM_DEFAULT_STREAM_NAME_LEN];
+ char pathname[RELAYD_COMM_LTTNG_PATH_MAX];
+ uint64_t tracefile_size;
+ uint64_t tracefile_count;
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_add_stream_2_11 {
+ uint32_t channel_name_len;
+ uint32_t pathname_len;
+ uint64_t tracefile_size;
+ uint64_t tracefile_count;
+ uint64_t trace_archive_id;
+ char names[];
+} LTTNG_PACKED;
/*
* Answer from an add stream command.
struct lttcomm_relayd_status_stream {
uint64_t handle;
uint32_t ret_code;
-} __attribute__ ((__packed__));
+} LTTNG_PACKED;
/*
* Used to return command code for command not needing special data.
*/
struct lttcomm_relayd_generic_reply {
uint32_t ret_code;
-} __attribute__ ((__packed__));
-
-/*
- * Used to update synchronization information.
- */
-struct lttcomm_relayd_update_sync_info {
- /* TODO: fill the structure */
-} __attribute__ ((__packed__));
+} LTTNG_PACKED;
/*
* Version command.
struct lttcomm_relayd_version {
uint32_t major;
uint32_t minor;
-} __attribute__ ((__packed__));
+} LTTNG_PACKED;
/*
* Metadata payload used when metadata command is sent.
*/
struct lttcomm_relayd_metadata_payload {
uint64_t stream_id;
+ uint32_t padding_size;
char payload[];
-} __attribute__ ((__packed__));
+} LTTNG_PACKED;
+
+/*
+ * Used to indicate that a specific stream id can now be closed.
+ */
+struct lttcomm_relayd_close_stream {
+ uint64_t stream_id;
+ uint64_t last_net_seq_num; /* sequence number of last packet */
+} LTTNG_PACKED;
+
+/*
+ * Used to test if for a given stream id the data is pending on the relayd side
+ * for reading.
+ */
+struct lttcomm_relayd_data_pending {
+ uint64_t stream_id;
+ uint64_t last_net_seq_num; /* Sequence number of the last packet */
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_begin_data_pending {
+ uint64_t session_id;
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_end_data_pending {
+ uint64_t session_id;
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_quiescent_control {
+ uint64_t stream_id;
+} LTTNG_PACKED;
+
+/*
+ * Index data.
+ */
+struct lttcomm_relayd_index {
+ uint64_t relay_stream_id;
+ uint64_t net_seq_num;
+ uint64_t packet_size;
+ uint64_t content_size;
+ uint64_t timestamp_begin;
+ uint64_t timestamp_end;
+ uint64_t events_discarded;
+ uint64_t stream_id;
+ /* 2.8+ */
+ uint64_t stream_instance_id;
+ uint64_t packet_seq_num;
+} LTTNG_PACKED;
+
+static inline size_t lttcomm_relayd_index_len(uint32_t major, uint32_t minor)
+{
+ if (major == 1) {
+ switch (minor) {
+ case 0:
+ return offsetof(struct lttcomm_relayd_index, stream_id)
+ + member_sizeof(struct lttcomm_relayd_index,
+ stream_id);
+ case 1:
+ return offsetof(struct lttcomm_relayd_index, packet_seq_num)
+ + member_sizeof(struct lttcomm_relayd_index,
+ packet_seq_num);
+ default:
+ abort();
+ }
+ }
+ abort();
+}
+
+/*
+ * Create session in 2.4 adds additionnal parameters for live reading.
+ */
+struct lttcomm_relayd_create_session_2_4 {
+ char session_name[RELAYD_COMM_LTTNG_NAME_MAX_2_4];
+ char hostname[RELAYD_COMM_LTTNG_HOST_NAME_MAX_2_4];
+ uint32_t live_timer;
+ uint32_t snapshot;
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_create_session_2_11 {
+ uint32_t session_name_len;
+ uint32_t hostname_len;
+ uint32_t live_timer;
+ uint8_t snapshot;
+ /* Sessiond instance UUID */
+ lttng_uuid sessiond_uuid;
+ /* Sessiond session id */
+ uint64_t session_id;
+ LTTNG_OPTIONAL_COMM(uint64_t) current_chunk_id;
+ /* Contains the session_name and hostname */
+ char names[];
+} LTTNG_PACKED;
+
+/*
+ * Used to ask the relay to reset the metadata trace file (regeneration).
+ * Send the new version of the metadata (starts at 0).
+ */
+struct lttcomm_relayd_reset_metadata {
+ uint64_t stream_id;
+ uint64_t version;
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_rotate_stream {
+ uint64_t stream_id;
+ /* Ignored for metadata streams. */
+ uint64_t rotate_at_seq_num;
+ uint64_t new_chunk_id;
+ /* Includes trailing NULL. */
+ uint32_t pathname_length;
+ /* Must be the last member of this structure. */
+ char new_pathname[];
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_create_trace_chunk {
+ uint64_t chunk_id;
+ /* Seconds since EPOCH. */
+ uint64_t creation_timestamp;
+ /* Includes trailing NULL. */
+ uint32_t override_name_length;
+ char override_name[];
+} LTTNG_PACKED;
#endif /* _RELAYD_COMM */
projects / lttng-tools.git / blobdiff