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implement deferred closing

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This commit is contained in:
leitner 2016-10-04 22:43:31 +00:00
parent b73a699dab
commit 2a0bcc2fb6
2 changed files with 22 additions and 1 deletions
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10
io/io_close.c
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@ -11,6 +11,8 @@
extern void io_dontwantread_really(int64 d,io_entry* e);
extern void io_dontwantwrite_really(int64 d,io_entry* e);
long first_deferred=-1;
void io_close(int64 d) {
io_entry* e;
if ((e=iarray_get(&io_fds,d))) {
@ -27,6 +29,7 @@ void io_close(int64 d) {
#endif
e->mmapped=0;
}
#if 1
if (e->next_read!=-1 || e->next_write!=-1) {
/* There are still outstanding events. If we close the fd, between
* now and when those events are handled, another accept() or
@ -35,10 +38,15 @@ void io_close(int64 d) {
* So we don't actually close the fd now, but we will mark it as
* closed. */
// fprintf(stderr,"io_close(%d) DEFERRED!\n",d);
e->closed=1;
if (e->closed==0) {
e->closed=1;
e->next_defer=first_deferred;
first_deferred=d;
}
return;
} else
e->closed=0;
#endif
}
// fprintf(stderr,"io_close(%d)\n",d);
close(d);

13
io/io_waituntil2.c
View File

@ -119,6 +119,19 @@ int64 io_waituntil2(int64 milliseconds) {
struct pollfd* p;
#endif
long i,j,r;
if (first_deferred!=-1) {
while (first_deferred!=-1) {
io_entry* e=iarray_get(&io_fds,first_deferred);
if (e) {
if (e->closed) {
e->closed=0;
close(first_deferred);
}
first_deferred=e->next_defer;
} else
first_deferred=-1; // can't happen
}
}
if (!io_wanted_fds) return 0;
#ifdef HAVE_EPOLL
if (io_waitmode==EPOLL) {