X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fconsumer.c;h=35d1b8aa2d9b5aaa31d217f790ec1655fa1520c0;hb=db66e57489e5014289dc1d831e1eac90ac4fc0da;hp=934af39bd3f6028b69138765b39c22401e6dbfbe;hpb=2edf492fe78faffdeb53f3f2f09bf92a3ce75ece;p=lttng-tools.git diff --git a/src/bin/lttng-sessiond/consumer.c b/src/bin/lttng-sessiond/consumer.c index 934af39bd..35d1b8aa2 100644 --- a/src/bin/lttng-sessiond/consumer.c +++ b/src/bin/lttng-sessiond/consumer.c @@ -561,7 +561,7 @@ struct consumer_output *consumer_copy_output(struct consumer_output *obj) } output->enabled = obj->enabled; output->net_seq_index = obj->net_seq_index; - memcpy(output->subdir, obj->subdir, PATH_MAX); + memcpy(output->subdir, obj->subdir, sizeof(output->subdir)); output->snapshot = obj->snapshot; output->relay_major_version = obj->relay_major_version; output->relay_minor_version = obj->relay_minor_version; @@ -715,11 +715,12 @@ int consumer_set_network_uri(struct consumer_output *obj, goto error; } - if (lttng_strncpy(obj->subdir, tmp_path, sizeof(obj->subdir))) { + if (lttng_strncpy(obj->dst.net.base_dir, tmp_path, + sizeof(obj->dst.net.base_dir))) { ret = -LTTNG_ERR_INVALID; goto error; } - DBG3("Consumer set network uri subdir path %s", tmp_path); + DBG3("Consumer set network uri base_dir path %s", tmp_path); } return 0; @@ -731,6 +732,8 @@ error: /* * Send file descriptor to consumer via sock. + * + * The consumer socket lock must be held by the caller. */ int consumer_send_fds(struct consumer_socket *sock, int *fds, size_t nb_fd) { @@ -739,6 +742,7 @@ int consumer_send_fds(struct consumer_socket *sock, int *fds, size_t nb_fd) assert(fds); assert(sock); assert(nb_fd > 0); + assert(pthread_mutex_trylock(sock->lock) == EBUSY); ret = lttcomm_send_fds_unix_sock(*sock->fd_ptr, fds, nb_fd); if (ret < 0) { @@ -748,13 +752,14 @@ int consumer_send_fds(struct consumer_socket *sock, int *fds, size_t nb_fd) } ret = consumer_recv_status_reply(sock); - error: return ret; } /* * Consumer send communication message structure to consumer. + * + * The consumer socket lock must be held by the caller. */ int consumer_send_msg(struct consumer_socket *sock, struct lttcomm_consumer_msg *msg) @@ -763,6 +768,7 @@ int consumer_send_msg(struct consumer_socket *sock, assert(msg); assert(sock); + assert(pthread_mutex_trylock(sock->lock) == EBUSY); ret = consumer_socket_send(sock, msg, sizeof(struct lttcomm_consumer_msg)); if (ret < 0) { @@ -777,6 +783,8 @@ error: /* * Consumer send channel communication message structure to consumer. + * + * The consumer socket lock must be held by the caller. */ int consumer_send_channel(struct consumer_socket *sock, struct lttcomm_consumer_msg *msg) @@ -806,6 +814,7 @@ void consumer_init_ask_channel_comm_msg(struct lttcomm_consumer_msg *msg, unsigned int switch_timer_interval, unsigned int read_timer_interval, unsigned int live_timer_interval, + unsigned int monitor_timer_interval, int output, int type, uint64_t session_id, @@ -822,6 +831,7 @@ void consumer_init_ask_channel_comm_msg(struct lttcomm_consumer_msg *msg, uint64_t session_id_per_pid, unsigned int monitor, uint32_t ust_app_uid, + int64_t blocking_timeout, const char *root_shm_path, const char *shm_path) { @@ -837,6 +847,7 @@ void consumer_init_ask_channel_comm_msg(struct lttcomm_consumer_msg *msg, msg->u.ask_channel.switch_timer_interval = switch_timer_interval; msg->u.ask_channel.read_timer_interval = read_timer_interval; msg->u.ask_channel.live_timer_interval = live_timer_interval; + msg->u.ask_channel.monitor_timer_interval = monitor_timer_interval; msg->u.ask_channel.output = output; msg->u.ask_channel.type = type; msg->u.ask_channel.session_id = session_id; @@ -850,6 +861,7 @@ void consumer_init_ask_channel_comm_msg(struct lttcomm_consumer_msg *msg, msg->u.ask_channel.tracefile_count = tracefile_count; msg->u.ask_channel.monitor = monitor; msg->u.ask_channel.ust_app_uid = ust_app_uid; + msg->u.ask_channel.blocking_timeout = blocking_timeout; memcpy(msg->u.ask_channel.uuid, uuid, sizeof(msg->u.ask_channel.uuid)); @@ -892,7 +904,8 @@ void consumer_init_channel_comm_msg(struct lttcomm_consumer_msg *msg, uint64_t tracefile_size, uint64_t tracefile_count, unsigned int monitor, - unsigned int live_timer_interval) + unsigned int live_timer_interval, + unsigned int monitor_timer_interval) { assert(msg); @@ -913,6 +926,7 @@ void consumer_init_channel_comm_msg(struct lttcomm_consumer_msg *msg, msg->u.channel.tracefile_count = tracefile_count; msg->u.channel.monitor = monitor; msg->u.channel.live_timer_interval = live_timer_interval; + msg->u.channel.monitor_timer_interval = monitor_timer_interval; strncpy(msg->u.channel.pathname, pathname, sizeof(msg->u.channel.pathname)); @@ -985,6 +999,8 @@ error: /* * Send relayd socket to consumer associated with a session name. * + * The consumer socket lock must be held by the caller. + * * On success return positive value. On error, negative value. */ int consumer_send_relayd_socket(struct consumer_socket *consumer_sock, @@ -1048,6 +1064,70 @@ error: return ret; } +static +int consumer_send_pipe(struct consumer_socket *consumer_sock, + enum lttng_consumer_command cmd, int pipe) +{ + int ret; + struct lttcomm_consumer_msg msg; + const char *pipe_name; + const char *command_name; + + switch (cmd) { + case LTTNG_CONSUMER_SET_CHANNEL_MONITOR_PIPE: + pipe_name = "channel monitor"; + command_name = "SET_CHANNEL_MONITOR_PIPE"; + break; + case LTTNG_CONSUMER_SET_CHANNEL_ROTATE_PIPE: + pipe_name = "channel rotate"; + command_name = "SET_CHANNEL_ROTATE_PIPE"; + break; + default: + ERR("Unexpected command received in %s (cmd = %d)", __func__, + (int) cmd); + abort(); + } + + /* Code flow error. Safety net. */ + + memset(&msg, 0, sizeof(msg)); + msg.cmd_type = cmd; + + pthread_mutex_lock(consumer_sock->lock); + DBG3("Sending %s command to consumer", command_name); + ret = consumer_send_msg(consumer_sock, &msg); + if (ret < 0) { + goto error; + } + + DBG3("Sending %s pipe %d to consumer on socket %d", + pipe_name, + pipe, *consumer_sock->fd_ptr); + ret = consumer_send_fds(consumer_sock, &pipe, 1); + if (ret < 0) { + goto error; + } + + DBG2("%s pipe successfully sent", pipe_name); +error: + pthread_mutex_unlock(consumer_sock->lock); + return ret; +} + +int consumer_send_channel_monitor_pipe(struct consumer_socket *consumer_sock, + int pipe) +{ + return consumer_send_pipe(consumer_sock, + LTTNG_CONSUMER_SET_CHANNEL_MONITOR_PIPE, pipe); +} + +int consumer_send_channel_rotate_pipe(struct consumer_socket *consumer_sock, + int pipe) +{ + return consumer_send_pipe(consumer_sock, + LTTNG_CONSUMER_SET_CHANNEL_ROTATE_PIPE, pipe); +} + /* * Set consumer subdirectory using the session name and a generated datetime if * needed. This is appended to the current subdirectory. @@ -1191,6 +1271,38 @@ end: return ret; } +/* + * Send a clear quiescent command to consumer using the given channel key. + * + * Return 0 on success else a negative value. + */ +int consumer_clear_quiescent_channel(struct consumer_socket *socket, uint64_t key) +{ + int ret; + struct lttcomm_consumer_msg msg; + + assert(socket); + + DBG2("Consumer clear quiescent channel key %" PRIu64, key); + + memset(&msg, 0, sizeof(msg)); + msg.cmd_type = LTTNG_CONSUMER_CLEAR_QUIESCENT_CHANNEL; + msg.u.clear_quiescent_channel.key = key; + + pthread_mutex_lock(socket->lock); + health_code_update(); + + ret = consumer_send_msg(socket, &msg); + if (ret < 0) { + goto end; + } + +end: + health_code_update(); + pthread_mutex_unlock(socket->lock); + return ret; +} + /* * Send a close metadata command to consumer using the given channel key. * Called with registry lock held. @@ -1339,8 +1451,11 @@ int consumer_snapshot_channel(struct consumer_socket *socket, uint64_t key, msg.u.snapshot_channel.use_relayd = 1; ret = snprintf(msg.u.snapshot_channel.pathname, sizeof(msg.u.snapshot_channel.pathname), - "%s/%s-%s-%" PRIu64 "%s", output->consumer->subdir, - output->name, output->datetime, output->nb_snapshot, + "%s/%s/%s-%s-%" PRIu64 "%s", + output->consumer->dst.net.base_dir, + output->consumer->subdir, + output->name, output->datetime, + output->nb_snapshot, session_path); if (ret < 0) { ret = -LTTNG_ERR_NOMEM; @@ -1349,8 +1464,10 @@ int consumer_snapshot_channel(struct consumer_socket *socket, uint64_t key, } else { ret = snprintf(msg.u.snapshot_channel.pathname, sizeof(msg.u.snapshot_channel.pathname), - "%s/%s-%s-%" PRIu64 "%s", output->consumer->dst.trace_path, - output->name, output->datetime, output->nb_snapshot, + "%s/%s-%s-%" PRIu64 "%s", + output->consumer->dst.session_root_path, + output->name, output->datetime, + output->nb_snapshot, session_path); if (ret < 0) { ret = -LTTNG_ERR_NOMEM; @@ -1370,7 +1487,9 @@ int consumer_snapshot_channel(struct consumer_socket *socket, uint64_t key, } health_code_update(); + pthread_mutex_lock(socket->lock); ret = consumer_send_msg(socket, &msg); + pthread_mutex_unlock(socket->lock); if (ret < 0) { goto error; } @@ -1493,3 +1612,104 @@ end: rcu_read_unlock(); return ret; } + +int consumer_rotate_rename(struct consumer_socket *socket, uint64_t session_id, + const struct consumer_output *output, const char *old_path, + const char *new_path, uid_t uid, gid_t gid) +{ + int ret; + struct lttcomm_consumer_msg msg; + size_t old_path_length, new_path_length; + + assert(socket); + assert(old_path); + assert(new_path); + + DBG("Consumer rotate rename session %" PRIu64 ", old path = \"%s\", new_path = \"%s\"", + session_id, old_path, new_path); + + old_path_length = strlen(old_path); + if (old_path_length >= sizeof(msg.u.rotate_rename.old_path)) { + ERR("consumer_rotate_rename: old path length (%zu bytes) exceeds the maximal length allowed by the consumer protocol (%zu bytes)", + old_path_length + 1, sizeof(msg.u.rotate_rename.old_path)); + ret = -1; + goto error; + } + + new_path_length = strlen(new_path); + if (new_path_length >= sizeof(msg.u.rotate_rename.new_path)) { + ERR("consumer_rotate_rename: new path length (%zu bytes) exceeds the maximal length allowed by the consumer protocol (%zu bytes)", + new_path_length + 1, sizeof(msg.u.rotate_rename.new_path)); + ret = -1; + goto error; + } + + memset(&msg, 0, sizeof(msg)); + msg.cmd_type = LTTNG_CONSUMER_ROTATE_RENAME; + msg.u.rotate_rename.session_id = session_id; + msg.u.rotate_rename.uid = uid; + msg.u.rotate_rename.gid = gid; + strcpy(msg.u.rotate_rename.old_path, old_path); + strcpy(msg.u.rotate_rename.new_path, new_path); + + if (output->type == CONSUMER_DST_NET) { + msg.u.rotate_rename.relayd_id = output->net_seq_index; + } else { + msg.u.rotate_rename.relayd_id = -1ULL; + } + + health_code_update(); + ret = consumer_send_msg(socket, &msg); + if (ret < 0) { + goto error; + } + +error: + health_code_update(); + return ret; +} + +/* + * Ask the consumer to create a directory. + * + * Called with the consumer socket lock held. + */ +int consumer_mkdir(struct consumer_socket *socket, uint64_t session_id, + const struct consumer_output *output, const char *path, + uid_t uid, gid_t gid) +{ + int ret; + struct lttcomm_consumer_msg msg; + + assert(socket); + + DBG("Consumer mkdir %s in session %" PRIu64, path, session_id); + + memset(&msg, 0, sizeof(msg)); + msg.cmd_type = LTTNG_CONSUMER_MKDIR; + msg.u.mkdir.session_id = session_id; + msg.u.mkdir.uid = uid; + msg.u.mkdir.gid = gid; + ret = snprintf(msg.u.mkdir.path, sizeof(msg.u.mkdir.path), "%s", path); + if (ret < 0 || ret >= sizeof(msg.u.mkdir.path)) { + ERR("Format path"); + ret = -1; + goto error; + } + + if (output->type == CONSUMER_DST_NET) { + msg.u.mkdir.relayd_id = output->net_seq_index; + } else { + msg.u.mkdir.relayd_id = -1ULL; + } + + health_code_update(); + ret = consumer_send_msg(socket, &msg); + if (ret < 0) { + goto error; + } + +error: + health_code_update(); + return ret; +}