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18 lines
438 B
C

#include <sys/types.h>
#include <fcntl.h>
#include "io_internal.h"
/* 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;
return 1;
}