X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fcmd.cpp;h=fe9656a89b8b59e1585f7693c3ca7db9cd3bf7ee;hb=d7bfb9b0fa35679d3e728b9165699d9faf905539;hp=07898138ad479fa493546ac45a176d80373a05a0;hpb=f149493493fbd8a3efa4748832c03278c96c38ca;p=lttng-tools.git diff --git a/src/bin/lttng-sessiond/cmd.cpp b/src/bin/lttng-sessiond/cmd.cpp index 07898138a..fe9656a89 100644 --- a/src/bin/lttng-sessiond/cmd.cpp +++ b/src/bin/lttng-sessiond/cmd.cpp @@ -74,6 +74,8 @@ /* Sleep for 100ms between each check for the shm path's deletion. */ #define SESSION_DESTROY_SHM_PATH_CHECK_DELAY_US 100000 +namespace lsu = lttng::sessiond::ust; + static enum lttng_error_code wait_on_path(void *path); namespace { @@ -4296,102 +4298,6 @@ end: return ret; } -static -int clear_metadata_file(int fd) -{ - int ret; - off_t lseek_ret; - - lseek_ret = lseek(fd, 0, SEEK_SET); - if (lseek_ret < 0) { - PERROR("lseek"); - ret = -1; - goto end; - } - - ret = ftruncate(fd, 0); - if (ret < 0) { - PERROR("ftruncate"); - goto end; - } - -end: - return ret; -} - -static -int ust_regenerate_metadata(struct ltt_ust_session *usess) -{ - int ret = 0; - struct buffer_reg_uid *uid_reg = NULL; - struct buffer_reg_session *session_reg = NULL; - - rcu_read_lock(); - cds_list_for_each_entry(uid_reg, &usess->buffer_reg_uid_list, lnode) { - struct ust_registry_session *registry; - struct ust_registry_channel *chan; - struct lttng_ht_iter iter_chan; - - session_reg = uid_reg->registry; - registry = session_reg->reg.ust; - - pthread_mutex_lock(®istry->lock); - registry->metadata_len_sent = 0; - memset(registry->metadata, 0, registry->metadata_alloc_len); - registry->metadata_len = 0; - registry->metadata_version++; - if (registry->metadata_fd > 0) { - /* Clear the metadata file's content. */ - ret = clear_metadata_file(registry->metadata_fd); - if (ret) { - pthread_mutex_unlock(®istry->lock); - goto end; - } - } - - ret = ust_metadata_session_statedump(registry, NULL, - registry->major, registry->minor); - if (ret) { - pthread_mutex_unlock(®istry->lock); - ERR("Failed to generate session metadata (err = %d)", - ret); - goto end; - } - cds_lfht_for_each_entry(registry->channels->ht, &iter_chan.iter, - chan, node.node) { - struct ust_registry_event *event; - struct lttng_ht_iter iter_event; - - chan->metadata_dumped = 0; - - ret = ust_metadata_channel_statedump(registry, chan); - if (ret) { - pthread_mutex_unlock(®istry->lock); - ERR("Failed to generate channel metadata " - "(err = %d)", ret); - goto end; - } - cds_lfht_for_each_entry(chan->events->ht, &iter_event.iter, - event, node.node) { - event->metadata_dumped = 0; - ret = ust_metadata_event_statedump(registry, - chan, event); - if (ret) { - pthread_mutex_unlock(®istry->lock); - ERR("Failed to generate event metadata " - "(err = %d)", ret); - goto end; - } - } - } - pthread_mutex_unlock(®istry->lock); - } - -end: - rcu_read_unlock(); - return ret; -} - /* * Command LTTNG_REGENERATE_METADATA from the lttng-ctl library. * @@ -4422,7 +4328,7 @@ int cmd_regenerate_metadata(struct ltt_session *session) } if (session->ust_session) { - ret = ust_regenerate_metadata(session->ust_session); + ret = trace_ust_regenerate_metadata(session->ust_session); if (ret < 0) { ERR("Failed to regenerate the UST metadata"); goto end;