diff options
Diffstat (limited to 'channels/chan_phone.c')
| -rw-r--r-- | channels/chan_phone.c | 80 |
1 files changed, 49 insertions, 31 deletions
diff --git a/channels/chan_phone.c b/channels/chan_phone.c index 295d2eb89..904207345 100644 --- a/channels/chan_phone.c +++ b/channels/chan_phone.c @@ -1011,12 +1011,12 @@ static void phone_check_exception(struct phone_pvt *i) static void *do_monitor(void *data) { - fd_set rfds, efds; - int n, res; + struct pollfd *fds = NULL; + int nfds = 0, inuse_fds = 0, res; struct phone_pvt *i; int tonepos = 0; /* The tone we're playing this round */ - struct timeval wait = {0,0}; + struct timeval tv = { 0, 0 }; int dotone; /* This thread monitors all the frame relay interfaces which are not yet in use (and thus do not have a separate thread) indefinitely */ @@ -1030,33 +1030,38 @@ static void *do_monitor(void *data) } /* Build the stuff we're going to select on, that is the socket of every phone_pvt that does not have an associated owner channel */ - n = -1; - FD_ZERO(&rfds); - FD_ZERO(&efds); i = iflist; dotone = 0; - while (i) { - if (FD_ISSET(i->fd, &rfds)) - ast_log(LOG_WARNING, "Descriptor %d appears twice (%s)?\n", i->fd, i->dev); + inuse_fds = 0; + for (i = iflist; i; i = i->next) { if (!i->owner) { /* This needs to be watched, as it lacks an owner */ - FD_SET(i->fd, &rfds); - FD_SET(i->fd, &efds); - if (i->fd > n) - n = i->fd; + if (inuse_fds == nfds) { + void *tmp = ast_realloc(fds, (nfds + 1) * sizeof(*fds)); + if (!tmp) { + /* Avoid leaking */ + continue; + } + fds = tmp; + nfds++; + } + fds[inuse_fds].fd = i->fd; + fds[inuse_fds].events = POLLIN | POLLERR; + fds[inuse_fds].revents = 0; + inuse_fds++; + if (i->dialtone && i->mode != MODE_SIGMA) { /* Remember we're going to have to come back and play more dialtones */ - if (ast_tvzero(wait)) { + if (ast_tvzero(tv)) { /* If we're due for a dialtone, play one */ - if (write(i->fd, DialTone + tonepos, 240) != 240) + if (write(i->fd, DialTone + tonepos, 240) != 240) { ast_log(LOG_WARNING, "Dial tone write error\n"); + } } dotone++; } } - - i = i->next; } /* Okay, now that we know what to do, release the interface lock */ ast_mutex_unlock(&iflock); @@ -1065,26 +1070,28 @@ static void *do_monitor(void *data) if (dotone && i && i->mode != MODE_SIGMA) { /* If we're ready to recycle the time, set it to 30 ms */ tonepos += 240; - if (tonepos >= sizeof(DialTone)) - tonepos = 0; - if (ast_tvzero(wait)) { - wait = ast_tv(30000, 0); + if (tonepos >= sizeof(DialTone)) { + tonepos = 0; } - res = ast_select(n + 1, &rfds, NULL, &efds, &wait); + if (ast_tvzero(tv)) { + tv = ast_tv(0, 30000); + } + res = ast_poll2(fds, inuse_fds, &tv); } else { - res = ast_select(n + 1, &rfds, NULL, &efds, NULL); - wait = ast_tv(0,0); + res = ast_poll(fds, inuse_fds, -1); + tv = ast_tv(0, 0); tonepos = 0; } /* Okay, select has finished. Let's see what happened. */ if (res < 0) { - ast_debug(1, "select return %d: %s\n", res, strerror(errno)); + ast_debug(1, "poll returned %d: %s\n", res, strerror(errno)); continue; } /* If there are no fd's changed, just continue, it's probably time to play some more dialtones */ - if (!res) + if (!res) { continue; + } /* Alright, lock the interface list again, and let's look and see what has happened */ if (ast_mutex_lock(&iflock)) { @@ -1092,15 +1099,27 @@ static void *do_monitor(void *data) continue; } - i = iflist; - for(; i; i=i->next) { - if (FD_ISSET(i->fd, &rfds)) { + for (i = iflist; i; i = i->next) { + int j; + /* Find the record */ + for (j = 0; j < inuse_fds; j++) { + if (fds[j].fd == i->fd) { + break; + } + } + + /* Not found? */ + if (j == inuse_fds) { + continue; + } + + if (fds[j].revents & POLLIN) { if (i->owner) { continue; } phone_mini_packet(i); } - if (FD_ISSET(i->fd, &efds)) { + if (fds[j].revents & POLLERR) { if (i->owner) { continue; } @@ -1110,7 +1129,6 @@ static void *do_monitor(void *data) ast_mutex_unlock(&iflock); } return NULL; - } static int restart_monitor() |