From c5b4e1aec8d1b23e1d9d0fec10a5fcf1137e8cd7 Mon Sep 17 00:00:00 2001 From: Tilghman Lesher Date: Fri, 25 Jul 2008 17:19:39 +0000 Subject: [PATCH] Fix some errant device states by making the devicestate API more strict in terms of the device argument (only without the unique identifier appended). (closes issue #12771) Reported by: davidw Patches: 20080717__bug12771.diff.txt uploaded by Corydon76 (license 14) Tested by: davidw, jvandal, murf git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@133649 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- channels/chan_agent.c | 8 ++++++++ main/channel.c | 13 +++++++++++-- main/devicestate.c | 29 +++-------------------------- 3 files changed, 22 insertions(+), 28 deletions(-) diff --git a/channels/chan_agent.c b/channels/chan_agent.c index cd431a6423..45232f3361 100644 --- a/channels/chan_agent.c +++ b/channels/chan_agent.c @@ -289,6 +289,11 @@ static int agent_devicestate_cb(const char *dev, int state, void *data) struct agent_pvt *p; char basename[AST_CHANNEL_NAME], *tmp; + /* Skip Agent status */ + if (!strncasecmp(dev, "Agent/", 6)) { + return 0; + } + /* Try to be safe, but don't deadlock */ for (i = 0; i < 10; i++) { if ((res = AST_LIST_TRYLOCK(&agents)) == 0) { @@ -522,6 +527,7 @@ static struct ast_frame *agent_read(struct ast_channel *ast) } p->chan = NULL; p->inherited_devicestate = -1; + ast_device_state_changed("Agent/%s", p->agent); p->acknowledged = 0; } } else { @@ -744,6 +750,7 @@ static int agent_call(struct ast_channel *ast, char *dest, int timeout) /* Agent hung-up */ p->chan = NULL; p->inherited_devicestate = -1; + ast_device_state_changed("Agent/%s", p->agent); } if (!res) { @@ -867,6 +874,7 @@ static int agent_hangup(struct ast_channel *ast) ast_hangup(p->chan); p->chan = NULL; p->inherited_devicestate = -1; + ast_device_state_changed("Agent/%s", p->agent); } ast_log(LOG_DEBUG, "Hungup, howlong is %d, autologoff is %d\n", howlong, p->autologoff); if ((p->deferlogoff) || (howlong && p->autologoff && (howlong > p->autologoff))) { diff --git a/main/channel.c b/main/channel.c index 9a5d701253..1383feb0f3 100644 --- a/main/channel.c +++ b/main/channel.c @@ -1201,7 +1201,7 @@ void ast_channel_free(struct ast_channel *chan) struct ast_frame *f; struct varshead *headp; struct ast_datastore *datastore = NULL; - char name[AST_CHANNEL_NAME]; + char name[AST_CHANNEL_NAME], *dashptr; headp=&chan->varshead; @@ -1234,6 +1234,9 @@ void ast_channel_free(struct ast_channel *chan) sched_context_destroy(chan->sched); ast_copy_string(name, chan->name, sizeof(name)); + if ((dashptr = strrchr(name, '-'))) { + *dashptr = '\0'; + } /* Stop monitoring */ if (chan->monitor) @@ -3669,13 +3672,19 @@ void ast_set_callerid(struct ast_channel *chan, const char *callerid, const char int ast_setstate(struct ast_channel *chan, enum ast_channel_state state) { + char name[AST_CHANNEL_NAME], *dashptr; int oldstate = chan->_state; if (oldstate == state) return 0; + ast_copy_string(name, chan->name, sizeof(name)); + if ((dashptr = strrchr(name, '-'))) { + *dashptr = '\0'; + } + chan->_state = state; - ast_device_state_changed_literal(chan->name); + ast_device_state_changed_literal(name); /* setstate used to conditionally report Newchannel; this is no more */ manager_event(EVENT_FLAG_CALL, "Newstate", diff --git a/main/devicestate.c b/main/devicestate.c index cc647a8239..f84c87df74 100644 --- a/main/devicestate.c +++ b/main/devicestate.c @@ -294,17 +294,13 @@ static void do_state_change(const char *device) ast_hint_state_changed(device); } -static int __ast_device_state_changed_literal(char *buf, int norecurse) +int ast_device_state_changed_literal(const char *device) { - char *device; struct state_change *change; - char *tmp = NULL; if (option_debug > 2) - ast_log(LOG_DEBUG, "Notification of state change to be queued on device/channel %s\n", buf); + ast_log(LOG_DEBUG, "Notification of state change to be queued on device/channel %s\n", device); - device = buf; - if (change_thread == AST_PTHREADT_NULL || !(change = ast_calloc(1, sizeof(*change) + strlen(device)))) { /* we could not allocate a change struct, or */ /* there is no background thread, so process the change now */ @@ -320,28 +316,9 @@ static int __ast_device_state_changed_literal(char *buf, int norecurse) AST_LIST_UNLOCK(&state_changes); } - /* The problem with this API is that a device may be called with the unique - * identifier appended or not, but it's separated from the channel name - * with a '-', which is also a legitimate character in a channel name. So, - * we have to force both names to get their names checked for state changes - * to ensure that the right one gets notified. Not a huge performance hit, - * but it might could be fixed by an enterprising programmer in trunk. - */ - if (!norecurse && (tmp = strrchr(device, '-'))) { - *tmp = '\0'; - __ast_device_state_changed_literal(device, 1); - } - return 1; } -int ast_device_state_changed_literal(const char *dev) -{ - char *buf; - buf = ast_strdupa(dev); - return __ast_device_state_changed_literal(buf, 0); -} - /*! \brief Accept change notification, add it to change queue */ int ast_device_state_changed(const char *fmt, ...) { @@ -351,7 +328,7 @@ int ast_device_state_changed(const char *fmt, ...) va_start(ap, fmt); vsnprintf(buf, sizeof(buf), fmt, ap); va_end(ap); - return __ast_device_state_changed_literal(buf, 0); + return ast_device_state_changed_literal(buf); } /*! \brief Go through the dev state change queue and update changes in the dev state thread */