diff options
Diffstat (limited to 'channels')
-rw-r--r-- | channels/chan_local.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/channels/chan_local.c b/channels/chan_local.c index 7fa6968cc..f49eb0b2f 100644 --- a/channels/chan_local.c +++ b/channels/chan_local.c @@ -79,6 +79,7 @@ static int local_fixup(struct ast_channel *oldchan, struct ast_channel *newchan) static int local_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen); static int local_sendtext(struct ast_channel *ast, const char *text); static int local_devicestate(void *data); +static int local_setoption(struct ast_channel *chan, int option, void *data, int datalen); /* PBX interface structure for channel registration */ static const struct ast_channel_tech local_tech = { @@ -100,6 +101,7 @@ static const struct ast_channel_tech local_tech = { .send_html = local_sendhtml, .send_text = local_sendtext, .devicestate = local_devicestate, + .setoption = local_setoption, }; struct local_pvt { @@ -124,6 +126,71 @@ struct local_pvt { static AST_LIST_HEAD_STATIC(locals, local_pvt); +static int local_setoption(struct ast_channel *chan, int option, void * data, int datalen) +{ + int res; + struct local_pvt *p; + struct ast_channel *otherchan; + ast_chan_write_info_t *write_info; + + if (option != AST_OPTION_CHANNEL_WRITE) { + return 0; + } + + write_info = data; + + if (write_info->version != AST_CHAN_WRITE_INFO_T_VERSION) { + ast_log(LOG_ERROR, "The chan_write_info_t type has changed, and this channel hasn't been updated!\n"); + return -1; + } + + +startover: + ast_channel_lock(chan); + + p = chan->tech_pvt; + if (!p) { + ast_channel_unlock(chan); + ast_log(LOG_WARNING, "Could not update other side of %s, local_pvt went away.\n", chan->name); + return -1; + } + + while (ast_mutex_trylock(&p->lock)) { + ast_channel_unlock(chan); + sched_yield(); + ast_channel_lock(chan); + p = chan->tech_pvt; + if (!p) { + ast_channel_unlock(chan); + ast_log(LOG_WARNING, "Could not update other side of %s, local_pvt went away.\n", chan->name); + return -1; + } + } + + otherchan = (write_info->chan == p->owner) ? p->chan : p->owner; + + if (!otherchan || otherchan == write_info->chan) { + ast_mutex_unlock(&p->lock); + ast_channel_unlock(chan); + ast_log(LOG_WARNING, "Could not update other side of %s, other side went away.\n", chan->name); + return 0; + } + + if (ast_channel_trylock(otherchan)) { + ast_mutex_unlock(&p->lock); + ast_channel_unlock(chan); + goto startover; + } + + res = write_info->write_fn(otherchan, write_info->function, write_info->data, write_info->value); + + ast_channel_unlock(otherchan); + ast_mutex_unlock(&p->lock); + ast_channel_unlock(chan); + + return res; +} + /*! \brief Adds devicestate to local channels */ static int local_devicestate(void *data) { |