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datastores: Audit ast_channel_datastore_remove usage.

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Audit of v1.8 usage of ast_channel_datastore_remove() for datastore memory
leaks.

* Fixed leaks in app_speech_utils and func_frame_trace.

* Fixed app_speech_utils not locking the channel when accessing the
channel datastore list.

Review: https://reviewboard.asterisk.org/r/3859/

Audit of v11 usage of ast_channel_datastore_remove() for datastore memory
leaks.

* Fixed leak in func_jitterbuffer.  (Was not in v12)

Review: https://reviewboard.asterisk.org/r/3860/

Audit of v12 usage of ast_channel_datastore_remove() for datastore memory
leaks.

* Fixed leaks in abstract_jb.

* Fixed leak in ast_channel_unsuppress().  Used by ARI mute control and
res_mutestream.

* Fixed ref leak in ast_channel_suppress().  Used by ARI mute control and
res_mutestream.

Review: https://reviewboard.asterisk.org/r/3861/
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Merged revisions 419684 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 419685 from http://svn.asterisk.org/svn/asterisk/branches/11
........

Merged revisions 419686 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@419688 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2014-07-28 18:58:43 +00:00
parent 702c503b76
commit 2758cc76e5
4 changed files with 42 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

56
apps/app_speech_utils.c
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@@ -290,7 +290,9 @@ static struct ast_speech *find_speech(struct ast_channel *chan)
return NULL;
}
ast_channel_lock(chan);
datastore = ast_channel_datastore_find(chan, &speech_datastore, NULL);
ast_channel_unlock(chan);
if (datastore == NULL) {
return NULL;
}
@@ -299,6 +301,35 @@ static struct ast_speech *find_speech(struct ast_channel *chan)
return speech;
}
/*!
* \internal
* \brief Destroy the speech datastore on the given channel.
*
* \param chan Channel to destroy speech datastore.
*
* \retval 0 on success.
* \retval -1 not found.
*/
static int speech_datastore_destroy(struct ast_channel *chan)
{
struct ast_datastore *datastore;
int res;
ast_channel_lock(chan);
datastore = ast_channel_datastore_find(chan, &speech_datastore, NULL);
if (datastore) {
ast_channel_datastore_remove(chan, datastore);
}
ast_channel_unlock(chan);
if (datastore) {
ast_datastore_free(datastore);
res = 0;
} else {
res = -1;
}
return res;
}
/* Helper function to find a specific speech recognition result by number and nbest alternative */
static struct ast_speech_result *find_result(struct ast_speech_result *results, char *result_num)
{
@@ -532,7 +563,9 @@ static int speech_create(struct ast_channel *chan, const char *data)
}
pbx_builtin_setvar_helper(chan, "ERROR", NULL);
datastore->data = speech;
ast_channel_lock(chan);
ast_channel_datastore_add(chan, datastore);
ast_channel_unlock(chan);
return 0;
}
@@ -675,7 +708,6 @@ static int speech_background(struct ast_channel *chan, const char *data)
RAII_VAR(struct ast_format *, oldreadformat, NULL, ao2_cleanup);
char dtmf[AST_MAX_EXTENSION] = "";
struct timeval start = { 0, 0 }, current;
struct ast_datastore *datastore = NULL;
char *parse, *filename_tmp = NULL, *filename = NULL, tmp[2] = "", dtmf_terminator = '#';
const char *tmp2 = NULL;
struct ast_flags options = { 0 };
@@ -904,11 +936,7 @@ static int speech_background(struct ast_channel *chan, const char *data)
/* See if it was because they hung up */
if (done == 3) {
/* Destroy speech structure */
ast_speech_destroy(speech);
datastore = ast_channel_datastore_find(chan, &speech_datastore, NULL);
if (datastore != NULL)
ast_channel_datastore_remove(chan, datastore);
speech_datastore_destroy(chan);
} else {
/* Channel is okay so restore read format */
ast_set_read_format(chan, oldreadformat);
@@ -921,22 +949,10 @@ static int speech_background(struct ast_channel *chan, const char *data)
/*! \brief SpeechDestroy() Dialplan Application */
static int speech_destroy(struct ast_channel *chan, const char *data)
{
int res = 0;
struct ast_speech *speech = find_speech(chan);
struct ast_datastore *datastore = NULL;
if (speech == NULL)
if (!chan) {
return -1;
/* Destroy speech structure */
ast_speech_destroy(speech);
datastore = ast_channel_datastore_find(chan, &speech_datastore, NULL);
if (datastore != NULL) {
ast_channel_datastore_remove(chan, datastore);
}
return res;
return speech_datastore_destroy(chan);
}
static int unload_module(void)