static struct chanspy_ds *chanspy_ds_free(struct chanspy_ds *chanspy_ds)
{
if (!chanspy_ds)
return NULL;
ast_mutex_lock(&chanspy_ds->lock);
if (chanspy_ds->chan) {
struct ast_datastore *datastore;
struct ast_channel *chan;
chan = chanspy_ds->chan;
ast_channel_lock(chan);
if ((datastore = ast_channel_datastore_find(chan, &chanspy_ds_info, chanspy_ds->unique_id))) {
ast_channel_datastore_remove(chan, datastore);
/* chanspy_ds->chan is NULL after this call */
chanspy_ds_destroy(datastore->data);
datastore->data = NULL;
ast_channel_datastore_free(datastore);
}
ast_channel_unlock(chan);
}
ast_mutex_unlock(&chanspy_ds->lock);
return NULL;
}
static struct chanspy_ds *chanspy_ds_free(struct chanspy_ds *chanspy_ds)
{
struct ast_channel *chan;
if (!chanspy_ds) {
return NULL;
}
ast_mutex_lock(&chanspy_ds->lock);
while ((chan = chanspy_ds->chan)) {
struct ast_datastore *datastore;
if (ast_channel_trylock(chan)) {
DEADLOCK_AVOIDANCE(&chanspy_ds->lock);
continue;
}
if ((datastore = ast_channel_datastore_find(chan, &chanspy_ds_info, chanspy_ds->unique_id))) {
ast_channel_datastore_remove(chan, datastore);
/* chanspy_ds->chan is NULL after this call */
chanspy_ds_destroy(datastore->data);
datastore->data = NULL;
ast_channel_datastore_free(datastore);
}
ast_channel_unlock(chan);
break;
}
ast_mutex_unlock(&chanspy_ds->lock);
return NULL;
}
static int volume_write(struct ast_channel *chan, const char *cmd, char *data, const char *value)
{
struct ast_datastore *datastore = NULL;
struct volume_information *vi = NULL;
int is_new = 0;
if (!(datastore = ast_channel_datastore_find(chan, &volume_datastore, NULL))) {
/* Allocate a new datastore to hold the reference to this volume and audiohook information */
if (!(datastore = ast_channel_datastore_alloc(&volume_datastore, NULL)))
return 0;
if (!(vi = ast_calloc(1, sizeof(*vi)))) {
ast_channel_datastore_free(datastore);
return 0;
}
ast_audiohook_init(&vi->audiohook, AST_AUDIOHOOK_TYPE_MANIPULATE, "Volume");
vi->audiohook.manipulate_callback = volume_callback;
ast_set_flag(&vi->audiohook, AST_AUDIOHOOK_WANTS_DTMF);
is_new = 1;
} else {
vi = datastore->data;
}
/* Adjust gain on volume information structure */
if (!strcasecmp(data, "tx"))
vi->tx_gain = atoi(value);
else if (!strcasecmp(data, "rx"))
vi->rx_gain = atoi(value);
if (is_new) {
datastore->data = vi;
ast_channel_datastore_add(chan, datastore);
ast_audiohook_attach(chan, &vi->audiohook);
}
return 0;
}
