27 lines
595 B
C
27 lines
595 B
C
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/* asyn_synch() - step back to synch Author: Kees J. Bot
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* 7 Jul 1997
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*/
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#include "asyn.h"
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int asyn_synch(asynchio_t *asyn, int fd)
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/* No more asynchronous operations on this file descriptor. */
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{
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asynfd_t *afd;
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int op;
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if ((unsigned) fd >= FD_SETSIZE) { errno= EBADF; return -1; }
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afd= &asyn->asyn_afd[fd];
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for (op= 0; op < SEL_NR; op++) {
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if (afd->afd_state[op] != IDLE) {
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errno= EAGAIN;
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return -1;
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}
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}
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/* Make sure the file flags are as they once were. */
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if (afd->afd_seen && fcntl(fd, F_SETFL, afd->afd_flags) < 0) return -1;
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afd->afd_seen= 0;
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return 0;
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}
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