Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#include <sys/types.h>
#include <fcntl.h>
#include "io_internal.h"
#ifdef HAVE_KQUEUE
#include <sys/event.h>
#endif
#ifdef HAVE_EPOLL
#include <sys/epoll.h>
#endif
/* put d on internal data structure, return 1 on success, 0 on error */
int io_fd(int64 d) {
long r;
io_entry* e;
if ((r=fcntl(d,F_GETFL,0) & O_NDELAY) == -1)
return 0; /* file descriptor not open */
if (!(e=array_allocate(&io_fds,sizeof(io_entry),d))) return 0;
e->inuse=1;
if (r&O_NDELAY) e->nonblock=1;
e->next_read=e->next_write=-1;
if (io_waitmode==UNDECIDED) {
#if defined(HAVE_EPOLL)
io_master=epoll_create(1000);
if (io_master!=-1) io_waitmode=EPOLL;
#endif
#if defined(HAVE_KQUEUE)
if (io_waitmode==POLL) { /* who knows, maybe someone supports both one day */
io_master=kqueue();
if (io_master!=-1) io_waitmode=KQUEUE;
}
#endif
}
return 1;
}