Useful to avoid generating vici messages if they are not needed and their generation is heavy operation.
Signed-off-by: Timo Teräs <[email protected]> --- src/libcharon/plugins/vici/vici_dispatcher.c | 41 ++++++++++++++++++++++++++++ src/libcharon/plugins/vici/vici_dispatcher.h | 31 +++++++++++++++++++++ 2 files changed, 72 insertions(+) diff --git a/src/libcharon/plugins/vici/vici_dispatcher.c b/src/libcharon/plugins/vici/vici_dispatcher.c index 6db36fb..cd30d76 100644 --- a/src/libcharon/plugins/vici/vici_dispatcher.c +++ b/src/libcharon/plugins/vici/vici_dispatcher.c @@ -13,6 +13,28 @@ * for more details. */ +/* + * Copyright (C) 2014 Timo Teräs <[email protected]> + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + #include "vici_dispatcher.h" #include "vici_socket.h" @@ -446,6 +468,24 @@ METHOD(vici_dispatcher_t, manage_event, void, this->mutex->unlock(this->mutex); } +METHOD(vici_dispatcher_t, has_event_listeners, bool, + private_vici_dispatcher_t *this, char *name) +{ + bool retval = false; + + this->mutex->lock(this->mutex); + if (this->events->get(this->events, name)) + { + /* the entry might be getting destroyed, but returning + * false positive is not a problem as a later raise_event + * will check things again. */ + retval = true; + } + this->mutex->unlock(this->mutex); + + return retval; +} + METHOD(vici_dispatcher_t, raise_event, void, private_vici_dispatcher_t *this, char *name, u_int id, vici_message_t *message) @@ -504,6 +544,7 @@ vici_dispatcher_t *vici_dispatcher_create(char *uri) .public = { .manage_command = _manage_command, .manage_event = _manage_event, + .has_event_listeners = _has_event_listeners, .raise_event = _raise_event, .destroy = _destroy, }, diff --git a/src/libcharon/plugins/vici/vici_dispatcher.h b/src/libcharon/plugins/vici/vici_dispatcher.h index 2297a80..390372c 100644 --- a/src/libcharon/plugins/vici/vici_dispatcher.h +++ b/src/libcharon/plugins/vici/vici_dispatcher.h @@ -13,6 +13,28 @@ * for more details. */ +/* + * Copyright (C) 2014 Timo Teräs <[email protected]> + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + /** * @defgroup vici_dispatcher vici_dispatcher * @{ @ingroup vici @@ -96,6 +118,15 @@ struct vici_dispatcher_t { void (*manage_event)(vici_dispatcher_t *this, char *name, bool reg); /** + * Check if an event has listeners. This can be used to check if a vici + * message needs to be generated or not, as in some cases the generation + * can be a heavy operation. + * + * @param name event name to check + */ + bool (*has_event_listeners)(vici_dispatcher_t *this, char *name); + + /** * Raise an event to a specific or all clients registered to that event. * * @param name event name to raise -- 2.3.6 _______________________________________________ Dev mailing list [email protected] https://lists.strongswan.org/mailman/listinfo/dev
