Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#include <unistd.h>
#include <sys/types.h>
#ifdef __MINGW32__
#include <windows.h>
#else
#include <sys/mman.h>
#endif
#include <stdio.h>
#include "io_internal.h"
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))) {
e->inuse=0;
e->cookie=0;
if (e->kernelwantread) { io_dontwantread_really(d,e); e->kernelwantread=0; }
if (e->kernelwantwrite) { io_dontwantwrite_really(d,e); e->kernelwantwrite=0; }
if (e->mmapped) {
#ifdef __MINGW32__
UnmapViewOfFile(e->mmapped);
CloseHandle(e->mh);
#else
munmap(e->mmapped,e->maplen);
#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
* open() could return this descriptor, and cause bad things to
* happen for everybody.
* So we don't actually close the fd now, but we will mark it as
* closed. */
// fprintf(stderr,"io_close(%d) DEFERRED!\n",d);
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);
}