X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-relayd%2Fviewer-session.c;h=0b77fd144c6a58e407edc7118a450eb8a6cf7848;hp=d394465ba1c51d3f1575ed7630c2f6dc4c942908;hb=ad8bec244fdbb0e7705fd1865ae71f36f06d2b94;hpb=dbd6665b396de85a4d6b311c8942f82ea9813891 diff --git a/src/bin/lttng-relayd/viewer-session.c b/src/bin/lttng-relayd/viewer-session.c index d394465ba..0b77fd144 100644 --- a/src/bin/lttng-relayd/viewer-session.c +++ b/src/bin/lttng-relayd/viewer-session.c @@ -1,20 +1,10 @@ /* - * Copyright (C) 2013 - Julien Desfossez - * David Goulet - * 2015 - Mathieu Desnoyers + * Copyright (C) 2013 Julien Desfossez + * Copyright (C) 2013 David Goulet + * Copyright (C) 2015 Mathieu Desnoyers * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License, version 2 only, as - * published by the Free Software Foundation. + * SPDX-License-Identifier: GPL-2.0-only * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 51 - * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #define _LGPL_SOURCE @@ -41,6 +31,29 @@ end: return vsession; } +int viewer_session_set_trace_chunk_copy(struct relay_viewer_session *vsession, + struct lttng_trace_chunk *relay_session_trace_chunk) +{ + int ret = 0; + struct lttng_trace_chunk *viewer_chunk; + + assert(relay_session_trace_chunk); + lttng_trace_chunk_put(vsession->current_trace_chunk); + vsession->current_trace_chunk = NULL; + + DBG("Copying relay session's current trace chunk to the viewer session"); + viewer_chunk = lttng_trace_chunk_copy(relay_session_trace_chunk); + if (!viewer_chunk) { + ERR("Failed to create a viewer trace chunk from the relay session's current chunk"); + ret = -1; + goto end; + } + + vsession->current_trace_chunk = viewer_chunk; +end: + return ret; +} + /* The existence of session must be guaranteed by the caller. */ enum lttng_viewer_attach_return_code viewer_session_attach( struct relay_viewer_session *vsession, @@ -65,7 +78,7 @@ enum lttng_viewer_attach_return_code viewer_session_attach( assert(!vsession->current_trace_chunk); session->viewer_attached = true; - ret = viewer_session_set_trace_chunk(vsession, + ret = viewer_session_set_trace_chunk_copy(vsession, session->current_trace_chunk); if (ret) { /* @@ -156,7 +169,8 @@ void viewer_session_close_one_session(struct relay_viewer_session *vsession, */ viewer_stream_put(vstream); } - + lttng_trace_chunk_put(vsession->current_trace_chunk); + vsession->current_trace_chunk = NULL; viewer_session_detach(vsession, session); } @@ -204,25 +218,3 @@ end: pthread_mutex_unlock(&session->lock); return found; } - -int viewer_session_set_trace_chunk(struct relay_viewer_session *vsession, - struct lttng_trace_chunk *relay_session_trace_chunk) -{ - int ret = 0; - struct lttng_trace_chunk *viewer_chunk; - - assert(relay_session_trace_chunk); - assert(!vsession->current_trace_chunk); - - DBG("Copying relay session's current trace chunk to the viewer session"); - viewer_chunk = lttng_trace_chunk_copy(relay_session_trace_chunk); - if (!viewer_chunk) { - ERR("Failed to create a viewer trace chunk from the relay session's current chunk"); - ret = -1; - goto end; - } - - vsession->current_trace_chunk = viewer_chunk; -end: - return ret; -}