diff options
author | David M. Lee <dlee@digium.com> | 2013-05-14 21:45:08 +0000 |
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committer | David M. Lee <dlee@digium.com> | 2013-05-14 21:45:08 +0000 |
commit | e8f4ac6c610265b46014da9259062bb74d3892d1 (patch) | |
tree | 1a891ebe67da746feef4733618da502f43efe8d3 /res/stasis/app.c | |
parent | d1d1425327378e16e77e7de6e64daccf289b4cc3 (diff) |
Break res_stasis into smaller files.
When implementing playback for stasis-http, the monolithicedness of
res_stasis really started to get in my way.
This patch breaks the major components of res_stasis.c into individual
files.
* res/stasis/app.c - Stasis application tracking
* res/stasis/control.c - Channel control objects
* res/stasis/command.c - Channel command object
This refactoring also allows res_stasis applications to be loaded as
independent modules, such as the new res_stasis_answer module.
The bulk of this patch is simply moving code from one file to another,
adjusting names and adding accessors as necessary.
Review: https://reviewboard.asterisk.org/r/2530/
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@388729 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'res/stasis/app.c')
-rw-r--r-- | res/stasis/app.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/res/stasis/app.c b/res/stasis/app.c new file mode 100644 index 000000000..d552eb4ab --- /dev/null +++ b/res/stasis/app.c @@ -0,0 +1,142 @@ +/* + * Asterisk -- An open source telephony toolkit. + * + * Copyright (C) 2013, Digium, Inc. + * + * David M. Lee, II <dlee@digium.com> + * + * See http://www.asterisk.org for more information about + * the Asterisk project. Please do not directly contact + * any of the maintainers of this project for assistance; + * the project provides a web site, mailing lists and IRC + * channels for your use. + * + * This program is free software, distributed under the terms of + * the GNU General Public License Version 2. See the LICENSE file + * at the top of the source tree. + */ + +/*! \file + * + * \brief Stasis application support. + * + * \author David M. Lee, II <dlee@digium.com> + */ + +#include "asterisk.h" + +ASTERISK_FILE_VERSION(__FILE__, "$Revision$") + +#include "app.h" + +#include "asterisk/stasis_app.h" +#include "asterisk/stasis_channels.h" + +/*! + * \brief Number of buckets for the channels container for app instances. Remember + * to keep it a prime number! + */ +#define APP_CHANNELS_BUCKETS 7 + +struct app { + /*! Callback function for this application. */ + stasis_app_cb handler; + /*! Opaque data to hand to callback function. */ + void *data; + /*! List of channel identifiers this app instance is interested in */ + struct ao2_container *channels; + /*! Name of the Stasis application */ + char name[]; +}; + +static void app_dtor(void *obj) +{ + struct app *app = obj; + + ao2_cleanup(app->data); + app->data = NULL; + ao2_cleanup(app->channels); + app->channels = NULL; +} + +struct app *app_create(const char *name, stasis_app_cb handler, void *data) +{ + RAII_VAR(struct app *, app, NULL, ao2_cleanup); + size_t size; + + ast_assert(name != NULL); + ast_assert(handler != NULL); + + size = sizeof(*app) + strlen(name) + 1; + app = ao2_alloc_options(size, app_dtor, AO2_ALLOC_OPT_LOCK_MUTEX); + + if (!app) { + return NULL; + } + + strncpy(app->name, name, size - sizeof(*app)); + app->handler = handler; + ao2_ref(data, +1); + app->data = data; + + app->channels = ast_str_container_alloc(APP_CHANNELS_BUCKETS); + if (!app->channels) { + return NULL; + } + + ao2_ref(app, +1); + return app; +} + +int app_add_channel(struct app *app, const struct ast_channel *chan) +{ + const char *uniqueid; + ast_assert(chan != NULL); + ast_assert(app != NULL); + + uniqueid = ast_channel_uniqueid(chan); + if (!ast_str_container_add(app->channels, uniqueid)) { + return -1; + } + return 0; +} + +void app_remove_channel(struct app* app, const struct ast_channel *chan) +{ + ast_assert(chan != NULL); + ast_assert(app != NULL); + + ao2_find(app->channels, ast_channel_uniqueid(chan), OBJ_KEY | OBJ_NODATA | OBJ_UNLINK); +} + +/*! + * \brief Send a message to the given application. + * \param app App to send the message to. + * \param message Message to send. + */ +void app_send(struct app *app, struct ast_json *message) +{ + app->handler(app->data, app->name, message); +} + +void app_update(struct app *app, stasis_app_cb handler, void *data) +{ + SCOPED_AO2LOCK(lock, app); + + app->handler = handler; + ao2_cleanup(app->data); + ao2_ref(data, +1); + app->data = data; +} + +const char *app_name(const struct app *app) +{ + return app->name; +} + +int app_is_watching_channel(struct app *app, const char *uniqueid) +{ + RAII_VAR(char *, found, NULL, ao2_cleanup); + found = ao2_find(app->channels, uniqueid, OBJ_KEY); + return found != NULL; +} |