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freetdm: add asynchronous signal notification

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This commit is contained in:
Moises Silva
2010-08-31 18:13:56 -04:00
parent ecfc4714e3
commit 3f3d412b4b
4 changed files with 71 additions and 24 deletions
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52
libs/freetdm/src/ftdm_io.c
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@@ -51,6 +51,7 @@
#include "ftdm_cpu_monitor.h"
#define SPAN_PENDING_CHANS_QUEUE_SIZE 1000
#define SPAN_PENDING_SIGNALS_QUEUE_SIZE 1000
#define FTDM_READ_TRACE_INDEX 0
#define FTDM_WRITE_TRACE_INDEX 1
@@ -461,6 +462,9 @@ static ftdm_status_t ftdm_span_destroy(ftdm_span_t *span)
if (span->pendingchans) {
ftdm_queue_destroy(&span->pendingchans);
}
if (span->pendingsignals) {
ftdm_queue_destroy(&span->pendingsignals);
}
ftdm_mutex_unlock(span->mutex);
ftdm_mutex_destroy(&span->mutex);
ftdm_safe_free(span->signal_data);
@@ -4160,6 +4164,9 @@ static ftdm_status_t post_configure_span_channels(ftdm_span_t *span)
if (ftdm_test_flag(span, FTDM_SPAN_USE_CHAN_QUEUE)) {
status = ftdm_queue_create(&span->pendingchans, SPAN_PENDING_CHANS_QUEUE_SIZE);
}
if (status == FTDM_SUCCESS && ftdm_test_flag(span, FTDM_SPAN_USE_SIGNALS_QUEUE)) {
status = ftdm_queue_create(&span->pendingsignals, SPAN_PENDING_SIGNALS_QUEUE_SIZE);
}
return status;
}
@@ -4425,10 +4432,39 @@ FT_DECLARE(ftdm_status_t) ftdm_group_create(ftdm_group_t **group, const char *na
return status;
}
static ftdm_status_t ftdm_span_trigger_signal(const ftdm_span_t *span, ftdm_sigmsg_t *sigmsg)
{
return span->signal_cb(sigmsg);
}
static ftdm_status_t ftdm_span_queue_signal(const ftdm_span_t *span, ftdm_sigmsg_t *sigmsg)
{
ftdm_sigmsg_t *new_sigmsg = NULL;
ftdm_assert_return((sigmsg->raw_data == NULL), FTDM_FAIL, "No raw data should be used with asynchronous notification\n");
new_sigmsg = ftdm_calloc(1, sizeof(*sigmsg));
if (!new_sigmsg) {
return FTDM_FAIL;
}
memcpy(new_sigmsg, sigmsg, sizeof(*sigmsg));
ftdm_queue_enqueue(span->pendingsignals, new_sigmsg);
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_span_trigger_signals(const ftdm_span_t *span)
{
ftdm_sigmsg_t *sigmsg = NULL;
while ((sigmsg = ftdm_queue_dequeue(span->pendingsignals))) {
ftdm_span_trigger_signal(span, sigmsg);
ftdm_safe_free(sigmsg);
}
return FTDM_SUCCESS;
}
FT_DECLARE(ftdm_status_t) ftdm_span_send_signal(ftdm_span_t *span, ftdm_sigmsg_t *sigmsg)
{
ftdm_status_t status = FTDM_FAIL;
if (sigmsg->channel) {
ftdm_mutex_lock(sigmsg->channel->mutex);
}
@@ -4463,10 +4499,12 @@ FT_DECLARE(ftdm_status_t) ftdm_span_send_signal(ftdm_span_t *span, ftdm_sigmsg_t
break;
}
/* call the user callback only if set */
if (span->signal_cb) {
status = span->signal_cb(sigmsg);
/* if the signaling module uses a queue for signaling notifications, then enqueue it */
if (ftdm_test_flag(span, FTDM_SPAN_USE_SIGNALS_QUEUE)) {
ftdm_span_queue_signal(span, sigmsg);
} else {
ftdm_span_trigger_signal(span, sigmsg);
}
done:
@@ -4474,7 +4512,7 @@ done:
ftdm_mutex_unlock(sigmsg->channel->mutex);
}
return status;
return FTDM_SUCCESS;
}
static void *ftdm_cpu_monitor_run(ftdm_thread_t *me, void *obj)