/**
* \brief Reads data from a Wanpipe channel
* \param ftdmchan Channel to read from
* \param data Data buffer
* \param datalen Size of data buffer
* \return Success, failure or timeout
*/
static FIO_READ_FUNCTION(wanpipe_read)
{
int rx_len = 0;
int myerrno = 0;
wp_tdm_api_rx_hdr_t hdrframe;
memset(&hdrframe, 0, sizeof(hdrframe));
rx_len = sangoma_readmsg_tdm(ftdmchan->sockfd, &hdrframe, (int)sizeof(hdrframe), data, (int)*datalen, 0);
*datalen = rx_len;
if (rx_len == 0) {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_WARNING, "Read 0 bytes\n");
return FTDM_TIMEOUT;
}
if (rx_len < 0) {
myerrno = errno;
snprintf(ftdmchan->last_error, sizeof(ftdmchan->last_error), "%s", strerror(errno));
ftdm_log_chan(ftdmchan, FTDM_LOG_WARNING, "Failed to read from sangoma device: %s (%d)\n", strerror(errno), rx_len);
return FTDM_FAIL;
}
return FTDM_SUCCESS;
}
/**
* \brief Reads data from a Wanpipe channel
* \param zchan Channel to read from
* \param data Data buffer
* \param datalen Size of data buffer
* \return Success, failure or timeout
*/
static ZIO_READ_FUNCTION(wanpipe_read)
{
int rx_len = 0;
wp_tdm_api_rx_hdr_t hdrframe;
memset(&hdrframe, 0, sizeof(hdrframe));
rx_len = sangoma_readmsg_tdm(zchan->sockfd, &hdrframe, (int)sizeof(hdrframe), data, (int)*datalen,0);
*datalen = rx_len;
if (rx_len == 0 || rx_len == -17) {
return ZAP_TIMEOUT;
}
if (rx_len < 0) {
snprintf(zchan->last_error, sizeof(zchan->last_error), "%s", strerror(errno));
return ZAP_FAIL;
}
return ZAP_SUCCESS;
}
sbridge_media_frame_t *sbridge_media_read(sbridge_chan_t *chan)
{
unsigned char *chandata;
int res = 0;
sbridge_media_frame_t *f = NULL;
sbridge_assert(chan != NULL, NULL);
sbridge_assert(chan->mtu <= SBRIDGE_MEDIA_MAX_FRAME_SIZE, NULL);
/* allocate enough space for the frame and its payload */
f = sbridge_calloc(1, sizeof(*f) + (SBRIDGE_MEDIA_MAX_FRAME_SIZE));
f->datalen = 0;
f->data.ptr = ((unsigned char *)f + sizeof(*f));
res = sangoma_readmsg_tdm(chan->sangoma_sock, &chan->hdrframe,
sizeof(chan->hdrframe), f->data.ptr, chan->mtu, 0);
if (res == -1) {
sbridge_log(SBRIDGE_LOG_ERROR, "Failed to read from sangoma socket: %s\n", strerror(errno));
free(f);
return NULL;
}
if (res == 0) {
sbridge_log(SBRIDGE_LOG_ERROR, "0 bytes read from sangoma socket, eof\n");
free(f);
return NULL;
}
f->datalen = res;
chandata = f->data.ptr;
if (chan->trace_raw_in) {
int len = 0;
len = fwrite(chandata, 1, f->datalen, chan->trace_raw_in);
if (len != f->datalen) {
sbridge_log(SBRIDGE_LOG_WARNING, "just wrote %d bytes of raw input when %d were requested\n", len, f->datalen);
}
fflush(chan->trace_raw_in);
}
return f;
}
