X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fsessiond-comm%2Fsessiond-comm.h;h=c390a9f5284a573a49f0c524750f5d7c66eaf25f;hp=5884fb8423006c3b1ad2474d2689625b5e6b7018;hb=ffe600149a7608221985751e1bf293234bf2545c;hpb=c8f59ee5fc11492ef472dc5cfd2fd2c4926b1787 diff --git a/src/common/sessiond-comm/sessiond-comm.h b/src/common/sessiond-comm/sessiond-comm.h index 5884fb842..c390a9f52 100644 --- a/src/common/sessiond-comm/sessiond-comm.h +++ b/src/common/sessiond-comm/sessiond-comm.h @@ -30,6 +30,8 @@ #include #include #include +#include +#include #include #include @@ -52,44 +54,48 @@ enum lttcomm_sessiond_command { /* Tracer command */ - LTTNG_ADD_CONTEXT, - LTTNG_CALIBRATE, - LTTNG_DISABLE_CHANNEL, - LTTNG_DISABLE_EVENT, - LTTNG_DISABLE_ALL_EVENT, - LTTNG_ENABLE_CHANNEL, - LTTNG_ENABLE_EVENT, - LTTNG_ENABLE_ALL_EVENT, + LTTNG_ADD_CONTEXT = 0, + LTTNG_CALIBRATE = 1, + LTTNG_DISABLE_CHANNEL = 2, + LTTNG_DISABLE_EVENT = 3, + LTTNG_DISABLE_ALL_EVENT = 4, + LTTNG_ENABLE_CHANNEL = 5, + LTTNG_ENABLE_EVENT = 6, + LTTNG_ENABLE_ALL_EVENT = 7, /* Session daemon command */ - LTTNG_CREATE_SESSION, - LTTNG_DESTROY_SESSION, - LTTNG_LIST_CHANNELS, - LTTNG_LIST_DOMAINS, - LTTNG_LIST_EVENTS, - LTTNG_LIST_SESSIONS, - LTTNG_LIST_TRACEPOINTS, - LTTNG_REGISTER_CONSUMER, - LTTNG_START_TRACE, - LTTNG_STOP_TRACE, - LTTNG_LIST_TRACEPOINT_FIELDS, + LTTNG_CREATE_SESSION = 8, + LTTNG_DESTROY_SESSION = 9, + LTTNG_LIST_CHANNELS = 10, + LTTNG_LIST_DOMAINS = 11, + LTTNG_LIST_EVENTS = 12, + LTTNG_LIST_SESSIONS = 13, + LTTNG_LIST_TRACEPOINTS = 14, + LTTNG_REGISTER_CONSUMER = 15, + LTTNG_START_TRACE = 16, + LTTNG_STOP_TRACE = 17, + LTTNG_LIST_TRACEPOINT_FIELDS = 18, /* Consumer */ - LTTNG_DISABLE_CONSUMER, - LTTNG_ENABLE_CONSUMER, - LTTNG_SET_CONSUMER_URI, - /* Relay daemon */ - RELAYD_ADD_STREAM, - RELAYD_CREATE_SESSION, - RELAYD_START_DATA, - RELAYD_UPDATE_SYNC_INFO, - RELAYD_VERSION, - RELAYD_SEND_METADATA, - RELAYD_CLOSE_STREAM, - RELAYD_DATA_AVAILABLE, - RELAYD_QUIESCENT_CONTROL, - LTTNG_SET_FILTER, - LTTNG_HEALTH_CHECK, - LTTNG_DATA_AVAILABLE, + LTTNG_DISABLE_CONSUMER = 19, + LTTNG_ENABLE_CONSUMER = 20, + LTTNG_SET_CONSUMER_URI = 21, + LTTNG_ENABLE_EVENT_WITH_FILTER = 22, + LTTNG_HEALTH_CHECK = 23, + LTTNG_DATA_PENDING = 24, +}; + +enum lttcomm_relayd_command { + RELAYD_ADD_STREAM = 1, + RELAYD_CREATE_SESSION = 2, + RELAYD_START_DATA = 3, + RELAYD_UPDATE_SYNC_INFO = 4, + RELAYD_VERSION = 5, + RELAYD_SEND_METADATA = 6, + RELAYD_CLOSE_STREAM = 7, + RELAYD_DATA_PENDING = 8, + RELAYD_QUIESCENT_CONTROL = 9, + RELAYD_BEGIN_DATA_PENDING = 10, + RELAYD_END_DATA_PENDING = 11, }; /* @@ -110,6 +116,7 @@ enum lttcomm_return_code { LTTCOMM_CONSUMERD_SPLICE_EINVAL, /* EINVAL from splice(2) */ LTTCOMM_CONSUMERD_SPLICE_ENOMEM, /* ENOMEM from splice(2) */ LTTCOMM_CONSUMERD_SPLICE_ESPIPE, /* ESPIPE from splice(2) */ + LTTCOMM_CONSUMERD_ENOMEM, /* Consumer is out of memory */ /* MUST be last element */ LTTCOMM_NR, /* Last element */ @@ -135,14 +142,14 @@ struct lttcomm_sockaddr { struct sockaddr_in sin; struct sockaddr_in6 sin6; } addr; -}; +} LTTNG_PACKED; struct lttcomm_sock { int fd; enum lttcomm_sock_proto proto; struct lttcomm_sockaddr sockaddr; const struct lttcomm_proto_ops *ops; -}; +} LTTNG_PACKED; struct lttcomm_net_family { int family; @@ -172,44 +179,39 @@ struct lttcomm_session_msg { struct { char channel_name[LTTNG_SYMBOL_NAME_LEN]; char name[NAME_MAX]; - } disable; + } LTTNG_PACKED disable; /* Event data */ struct { char channel_name[LTTNG_SYMBOL_NAME_LEN]; struct lttng_event event; - } enable; + /* Length of following bytecode for filter. */ + uint32_t bytecode_len; + } LTTNG_PACKED enable; /* Create channel */ struct { struct lttng_channel chan; - } channel; + } LTTNG_PACKED channel; /* Context */ struct { char channel_name[LTTNG_SYMBOL_NAME_LEN]; - char event_name[LTTNG_SYMBOL_NAME_LEN]; struct lttng_event_context ctx; - } context; + } LTTNG_PACKED context; /* Use by register_consumer */ struct { char path[PATH_MAX]; - } reg; + } LTTNG_PACKED reg; /* List */ struct { char channel_name[LTTNG_SYMBOL_NAME_LEN]; - } list; + } LTTNG_PACKED list; struct lttng_calibrate calibrate; /* Used by the set_consumer_url and used by create_session also call */ struct { /* Number of lttng_uri following */ uint32_t size; - } uri; - struct { - char channel_name[LTTNG_SYMBOL_NAME_LEN]; - char event_name[LTTNG_SYMBOL_NAME_LEN]; - /* Length of following bytecode */ - uint32_t bytecode_len; - } filter; + } LTTNG_PACKED uri; } u; -}; +} LTTNG_PACKED; #define LTTNG_FILTER_MAX_LEN 65536 @@ -218,11 +220,14 @@ struct lttcomm_session_msg { * bytecode. It is made of tuples: (uint16_t, var. len. string). It * starts at reloc_table_offset. */ +#define LTTNG_FILTER_PADDING 32 struct lttng_filter_bytecode { uint32_t len; /* len of data */ uint32_t reloc_table_offset; + uint64_t seqnum; + char padding[LTTNG_FILTER_PADDING]; char data[0]; -}; +} LTTNG_PACKED; /* * Data structure for the response from sessiond to the lttng client. @@ -234,16 +239,16 @@ struct lttcomm_lttng_msg { uint32_t data_size; /* Contains: trace_name + data */ char payload[]; -}; +} LTTNG_PACKED; struct lttcomm_health_msg { uint32_t component; uint32_t cmd; -}; +} LTTNG_PACKED; struct lttcomm_health_data { uint32_t ret_code; -}; +} LTTNG_PACKED; /* * lttcomm_consumer_msg is the message sent from sessiond to consumerd @@ -255,42 +260,75 @@ struct lttcomm_consumer_msg { union { struct { int channel_key; - uint64_t max_sb_size; /* the subbuffer size for this channel */ - /* shm_fd and wait_fd are sent as ancillary data */ - uint64_t mmap_len; + uint64_t session_id; + char pathname[PATH_MAX]; + uid_t uid; + gid_t gid; + int relayd_id; /* nb_init_streams is the number of streams open initially. */ unsigned int nb_init_streams; char name[LTTNG_SYMBOL_NAME_LEN]; - } channel; + /* Use splice or mmap to consume this fd */ + enum lttng_event_output output; + int type; /* Per cpu or metadata. */ + } LTTNG_PACKED channel; /* Only used by Kernel. */ struct { - int channel_key; int stream_key; - /* shm_fd and wait_fd are sent as ancillary data */ - uint32_t state; /* enum lttcomm_consumer_fd_state */ - enum lttng_event_output output; /* use splice or mmap to consume this fd */ - uint64_t mmap_len; - uid_t uid; /* User ID owning the session */ - gid_t gid; /* Group ID owning the session */ - char path_name[PATH_MAX]; - int net_index; - unsigned int metadata_flag; - char name[LTTNG_SYMBOL_NAME_LEN]; /* Name string of the stream */ - uint64_t session_id; /* Tracing session id of the stream */ - } stream; + int channel_key; + int cpu; /* On which CPU this stream is assigned. */ + } LTTNG_PACKED stream; /* Only used by Kernel. */ struct { int net_index; enum lttng_stream_type type; /* Open socket to the relayd */ struct lttcomm_sock sock; - } relayd_sock; + /* Tracing session id associated to the relayd. */ + uint64_t session_id; + } LTTNG_PACKED relayd_sock; struct { uint64_t net_seq_idx; - } destroy_relayd; + } LTTNG_PACKED destroy_relayd; struct { uint64_t session_id; - } data_available; + } LTTNG_PACKED data_pending; + struct { + uint64_t subbuf_size; /* bytes */ + uint64_t num_subbuf; /* power of 2 */ + int overwrite; /* 1: overwrite, 0: discard */ + unsigned int switch_timer_interval; /* usec */ + unsigned int read_timer_interval; /* usec */ + int output; /* splice, mmap */ + int type; /* metadata or per_cpu */ + uint64_t session_id; /* Tracing session id */ + char pathname[PATH_MAX]; /* Channel file path. */ + char name[LTTNG_SYMBOL_NAME_LEN]; /* Channel name. */ + uid_t uid; /* User ID of the session */ + gid_t gid; /* Group ID ot the session */ + int relayd_id; /* Relayd id if apply. */ + unsigned long key; /* Unique channel key. */ + unsigned char uuid[UUID_STR_LEN]; /* uuid for ust tracer. */ + } LTTNG_PACKED ask_channel; + struct { + unsigned long key; + } LTTNG_PACKED get_channel; + struct { + unsigned long key; + } LTTNG_PACKED destroy_channel; } u; -}; +} LTTNG_PACKED; + +/* + * Status message returned to the sessiond after a received command. + */ +struct lttcomm_consumer_status_msg { + enum lttng_error_code ret_code; +} LTTNG_PACKED; + +struct lttcomm_consumer_status_channel { + enum lttng_error_code ret_code; + unsigned long key; + unsigned int stream_count; +} LTTNG_PACKED; #ifdef HAVE_LIBLTTNG_UST_CTL @@ -309,7 +347,7 @@ struct lttcomm_ust_msg { struct lttng_ust_context context; struct lttng_ust_tracer_version version; } u; -}; +} LTTNG_PACKED; /* * Data structure for the response from UST to the session daemon. @@ -323,13 +361,13 @@ struct lttcomm_ust_reply { union { struct { uint64_t memory_map_size; - } channel; + } LTTNG_PACKED channel; struct { uint64_t memory_map_size; - } stream; + } LTTNG_PACKED stream; struct lttng_ust_tracer_version version; } u; -}; +} LTTNG_PACKED; #endif /* HAVE_LIBLTTNG_UST_CTL */