77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/***********************************************************************/
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/* */
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/* Objective Caml */
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/* */
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/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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#include <mlvalues.h>
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#include "unixsupport.h"
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#ifdef HAS_UNISTD
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#include <unistd.h>
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#endif
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#include <fcntl.h>
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#ifndef O_NONBLOCK
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#define O_NONBLOCK O_NDELAY
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#endif
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value unix_set_nonblock(value fd) /* ML */
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{
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int retcode;
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retcode = fcntl(Int_val(fd), F_GETFL, 0);
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if (retcode == -1 ||
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fcntl(Int_val(fd), F_SETFL, retcode | O_NONBLOCK) == -1)
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uerror("set_nonblock", Nothing);
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return Val_unit;
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}
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value unix_clear_nonblock(value fd) /* ML */
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{
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int retcode;
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retcode = fcntl(Int_val(fd), F_GETFL, 0);
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if (retcode == -1 ||
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fcntl(Int_val(fd), F_SETFL, retcode & ~O_NONBLOCK) == -1)
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uerror("clear_nonblock", Nothing);
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return Val_unit;
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}
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#ifdef FD_CLOEXEC
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value unix_set_close_on_exec(value fd) /* ML */
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{
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int retcode;
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retcode = fcntl(Int_val(fd), F_GETFD, 0);
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if (retcode == -1 ||
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fcntl(Int_val(fd), F_SETFD, retcode | FD_CLOEXEC) == -1)
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uerror("set_close_on_exec", Nothing);
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return Val_unit;
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}
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value unix_clear_close_on_exec(value fd) /* ML */
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{
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int retcode;
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retcode = fcntl(Int_val(fd), F_GETFD, 0);
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if (retcode == -1 ||
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fcntl(Int_val(fd), F_SETFD, retcode & ~FD_CLOEXEC) == -1)
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uerror("clear_close_on_exec", Nothing);
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return Val_unit;
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}
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#else
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value unix_set_close_on_exec(value fd)
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{ invalid_argument("set_close_on_exec not implemented"); }
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value unix_clear_close_on_exec(value fd)
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{ invalid_argument("clear_close_on_exec not implemented"); }
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#endif
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