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54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
#include <unistd.h>
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#include <sys/types.h>
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#ifdef __MINGW32__
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#include <windows.h>
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#else
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#include <sys/mman.h>
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#endif
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#include <stdio.h>
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#include "io_internal.h"
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extern void io_dontwantread_really(int64 d,io_entry* e);
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extern void io_dontwantwrite_really(int64 d,io_entry* e);
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long first_deferred=-1;
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void io_close(int64 d) {
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io_entry* e;
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if ((e=iarray_get(&io_fds,d))) {
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e->inuse=0;
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e->cookie=0;
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if (e->kernelwantread) { io_dontwantread_really(d,e); e->kernelwantread=0; }
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if (e->kernelwantwrite) { io_dontwantwrite_really(d,e); e->kernelwantwrite=0; }
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if (e->mmapped) {
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#ifdef __MINGW32__
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UnmapViewOfFile(e->mmapped);
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CloseHandle(e->mh);
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#else
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munmap(e->mmapped,e->maplen);
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#endif
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e->mmapped=0;
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}
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#if 1
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if (e->next_read!=-1 || e->next_write!=-1) {
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/* There are still outstanding events. If we close the fd, between
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* now and when those events are handled, another accept() or
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* open() could return this descriptor, and cause bad things to
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* happen for everybody.
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* So we don't actually close the fd now, but we will mark it as
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* closed. */
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// fprintf(stderr,"io_close(%d) DEFERRED!\n",d);
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if (e->closed==0) {
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e->closed=1;
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e->next_defer=first_deferred;
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first_deferred=d;
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}
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return;
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} else
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e->closed=0;
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#endif
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}
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// fprintf(stderr,"io_close(%d)\n",d);
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close(d);
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}
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