int cw_sched_wait(struct sched_context *con)
{
/*
* Return the number of milliseconds
* until the next scheduled event
*/
int ms;
#ifdef DEBUG_SCHED
DEBUG_LOG(cw_log(LOG_DEBUG, "cw_sched_wait()\n"));
#endif
cw_mutex_lock(&con->lock);
if (!con->schedq) {
ms = -1;
} else {
ms = cw_tvdiff_ms(con->schedq->when, cw_tvnow());
if (ms < 0)
ms = 0;
}
cw_mutex_unlock(&con->lock);
return ms;
}
static int pipe_exec(struct cw_channel *chan, int argc, char **argv)
{
int res=0;
struct localuser *u;
int fds[2];
int ms = -1;
int pid = -1;
int owriteformat;
int oreadformat;
int timeout = 2000;
struct timeval last;
struct cw_frame *f;
struct myframe {
struct cw_frame f;
char offset[CW_FRIENDLY_OFFSET];
short frdata[160];
} myf;
last.tv_usec = 0;
last.tv_sec = 0;
if (argc < 2 || argc > 3) {
cw_log(LOG_ERROR, "Syntax: %s\n", pipe_syntax);
return -1;
}
LOCAL_USER_ADD(u);
if (pipe(fds)) {
cw_log(LOG_WARNING, "Unable to create pipe\n");
LOCAL_USER_REMOVE(u);
return -1;
}
// MOC: Setting non blocking doesn't seem to change anything
// flags = fcntl(fds[1], F_GETFL);
// fcntl(fds[1], F_SETFL, flags | O_NONBLOCK);
// flags = fcntl(fds[0], F_GETFL);
// fcntl(fds[0], F_SETFL, flags | O_NONBLOCK);
cw_stopstream(chan);
if (chan->_state != CW_STATE_UP)
res = cw_answer(chan);
if (res) {
close(fds[0]);
close(fds[1]);
cw_log(LOG_WARNING, "Answer failed!\n");
LOCAL_USER_REMOVE(u);
return -1;
}
oreadformat = chan->readformat;
res = cw_set_read_format(chan, CW_FORMAT_SLINEAR);
owriteformat = chan->writeformat;
res += cw_set_write_format(chan, CW_FORMAT_SLINEAR);
if (res < 0) {
close(fds[0]);
close(fds[1]);
cw_log(LOG_WARNING, "Unable to set write format to signed linear\n");
LOCAL_USER_REMOVE(u);
return -1;
}
res = pipeencode(argv[1], argv[2], fds[0], fds[1]);
if (res >= 0) {
last = cw_tvnow();
last.tv_sec += 1;
pid = res;
for (;;) {
/* Wait for audio, and stream */
if (argv[0][0] == '0') {
/* START WRITE TO FD */
ms = cw_waitfor(chan, 10);
if (ms < 0) {
cw_log(LOG_DEBUG, "Hangup detected\n");
res = -1;
break;
} else if (ms > 0) {
f = cw_read(chan);
if (!f) {
cw_log(LOG_DEBUG, "Null frame == hangup() detected\n");
res = -1;
break;
}
if (f->frametype == CW_FRAME_DTMF) {
cw_log(LOG_DEBUG, "User pressed a key\n");
cw_fr_free(f);
res = 0;
break;
}
if (f->frametype == CW_FRAME_VOICE) {
res = write(fds[1], f->data, f->datalen);
if (res < 0) {
if (errno != EAGAIN) {
cw_log(LOG_WARNING, "Write failed to pipe: %s\n", strerror(errno));
cw_fr_free(f);
res = -1;
break;
}
}
}
cw_fr_free(f);
} /* END WRITE TO FD */
} else {
/* START WRITE CHANNEL */
ms = cw_tvdiff_ms(last, cw_tvnow());
if (ms <= 0) {
res = timed_read(fds[0], myf.frdata, sizeof(myf.frdata), timeout);
if (res > 0) {
cw_fr_init_ex(&myf.f, CW_FRAME_VOICE, CW_FORMAT_SLINEAR, __PRETTY_FUNCTION__);
myf.f.datalen = res;
myf.f.samples = res/sizeof(int16_t);
myf.f.offset = CW_FRIENDLY_OFFSET;
myf.f.data = myf.frdata;
if (cw_write(chan, &myf.f) < 0)
{
res = -1;
break;
}
} else {
cw_log(LOG_DEBUG, "No more stream\n");
res = 0;
break;
}
last = cw_tvadd(last, cw_samp2tv(myf.f.samples, 8000));
} else {
ms = cw_waitfor(chan, ms);
if (ms < 0) {
cw_log(LOG_DEBUG, "Hangup detected\n");
res = -1;
break;
}
if (ms) {
f = cw_read(chan);
if (!f) {
cw_log(LOG_DEBUG, "Null frame == hangup() detected\n");
res = -1;
break;
}
if (f->frametype == CW_FRAME_DTMF) {
cw_log(LOG_DEBUG, "User pressed a key\n");
cw_fr_free(f);
res = 0;
break;
}
cw_fr_free(f);
}
}
/* END WRITE CHANNEL */
}
}
}
close(fds[0]);
close(fds[1]);
LOCAL_USER_REMOVE(u);
if (pid > -1)
kill(pid, SIGKILL);
if (!res && oreadformat)
cw_set_read_format(chan, oreadformat);
if (!res && owriteformat)
cw_set_write_format(chan, owriteformat);
return res;
}
int cw_control_streamfile(struct cw_channel *chan, const char *file,
const char *fwd, const char *rev,
const char *stop, const char *pause,
const char *restart, int skipms)
{
long elapsed = 0, last_elapsed = 0;
char *breaks = NULL;
char *end = NULL;
int blen = 2;
int res;
if (stop)
blen += strlen(stop);
if (pause)
blen += strlen(pause);
if (restart)
blen += strlen(restart);
if (blen > 2) {
breaks = alloca(blen + 1);
breaks[0] = '\0';
if (stop)
strcat(breaks, stop);
if (pause)
strcat(breaks, pause);
if (restart)
strcat(breaks, restart);
}
if (chan->_state != CW_STATE_UP)
res = cw_answer(chan);
if (chan)
cw_stopstream(chan);
if (file) {
if ((end = strchr(file,':'))) {
if (!strcasecmp(end, ":end")) {
*end = '\0';
end++;
}
}
}
for (;;) {
struct timeval started = cw_tvnow();
if (chan)
cw_stopstream(chan);
res = cw_streamfile(chan, file, chan->language);
if (!res) {
if (end) {
cw_seekstream(chan->stream, 0, SEEK_END);
end=NULL;
}
res = 1;
if (elapsed) {
cw_stream_fastforward(chan->stream, elapsed);
last_elapsed = elapsed - 200;
}
if (res)
res = cw_waitstream_fr(chan, breaks, fwd, rev, skipms);
else
break;
}
if (res < 1)
break;
/* We go at next loop if we got the restart char */
if (restart && strchr(restart, res)) {
cw_log(LOG_DEBUG, "we'll restart the stream here at next loop\n");
elapsed=0; /* To make sure the next stream will start at beginning */
continue;
}
if (pause != NULL && strchr(pause, res)) {
elapsed = cw_tvdiff_ms(cw_tvnow(), started) + last_elapsed;
for(;;) {
if (chan)
cw_stopstream(chan);
res = cw_waitfordigit(chan, 1000);
if (res == 0)
continue;
else if (res == -1 || strchr(pause, res) || (stop && strchr(stop, res)))
break;
}
if (res == *pause) {
res = 0;
continue;
}
}
if (res == -1)
break;
/* if we get one of our stop chars, return it to the calling function */
if (stop && strchr(stop, res)) {
/* res = 0; */
break;
}
}
if (chan)
cw_stopstream(chan);
return res;
}
