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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.
This commit is contained in:
Harald Welte 2011-02-13 15:41:25 +01:00
parent a6ef1b215f
commit fccc25ca80
1 changed files with 6 additions and 2 deletions
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8
openbsc/src/input/dahdi.c
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@ -334,12 +334,16 @@ static int dahdi_fd_cb(struct bsc_fd *bfd, unsigned int what)
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 @@ static int dahdi_e1_setup(struct e1inp_line *line)
__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 @@ static int dahdi_e1_setup(struct e1inp_line *line)
/* 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;
}