DAHDI: Register every FD in the select() exceptfd-set
This helps us to receive events even if we don't receive or transmit
anything on the line.
diff --git a/openbsc/src/input/dahdi.c b/openbsc/src/input/dahdi.c
index 1b1c444..7890d81 100644
--- a/openbsc/src/input/dahdi.c
+++ b/openbsc/src/input/dahdi.c
@@ -334,12 +334,16 @@
switch (e1i_ts->type) {
case E1INP_TS_TYPE_SIGN:
+ if (what & BSC_FD_EXCEPT)
+ handle_dahdi_exception(e1i_ts);
if (what & BSC_FD_READ)
rc = handle_ts1_read(bfd);
if (what & BSC_FD_WRITE)
rc = handle_ts1_write(bfd);
break;
case E1INP_TS_TYPE_TRAU:
+ if (what & BSC_FD_EXCEPT)
+ handle_dahdi_exception(e1i_ts);
if (what & BSC_FD_READ)
rc = handle_tsX_read(bfd);
if (what & BSC_FD_WRITE)
@@ -424,7 +428,7 @@
__func__, openstr, strerror(errno));
exit(-1);
}
- bfd->when = BSC_FD_READ;
+ bfd->when = BSC_FD_READ | BSC_FD_EXCEPT;
dahdi_set_bufinfo(bfd->fd, 1);
e1i_ts->driver.dahdi.lapd = lapd_instance_alloc(dahdi_write_msg, bfd);
break;
@@ -439,7 +443,7 @@
/* We never include the DAHDI B-Channel FD into the
* writeset, since it doesn't support poll() based
* write flow control */
- bfd->when = BSC_FD_READ;// | BSC_FD_WRITE;
+ bfd->when = BSC_FD_READ | BSC_FD_EXCEPT;// | BSC_FD_WRITE;
break;
}