66 lines
2.2 KiB
C
66 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 <alloc.h>
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#include <memory.h>
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#include "unixsupport.h"
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#ifdef HAS_SETITIMER
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#include <sys/time.h>
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#define Get_timeval(tv) \
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(double) tv.tv_sec + (double) tv.tv_usec / 1e6
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#define Set_timeval(tv, d) \
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tv.tv_sec = (int)(d), \
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tv.tv_usec = (int) (1e6 * ((d) - tv.tv_sec))
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static value unix_convert_itimer(struct itimerval *tp)
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{
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value res = alloc_small(Double_wosize * 2, Double_array_tag);
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Store_double_field(res, 0, Get_timeval(tp->it_interval));
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Store_double_field(res, 1, Get_timeval(tp->it_value));
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return res;
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}
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static int itimers[3] = { ITIMER_REAL, ITIMER_VIRTUAL, ITIMER_PROF };
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CAMLprim value unix_setitimer(value which, value newval)
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{
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struct itimerval new, old;
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Set_timeval(new.it_interval, Double_field(newval, 0));
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Set_timeval(new.it_value, Double_field(newval, 1));
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if (setitimer(itimers[Int_val(which)], &new, &old) == -1)
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uerror("setitimer", Nothing);
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return unix_convert_itimer(&old);
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}
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CAMLprim value unix_getitimer(value which)
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{
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struct itimerval val;
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if (getitimer(itimers[Int_val(which)], &val) == -1)
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uerror("getitimer", Nothing);
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return unix_convert_itimer(&val);
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}
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#else
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CAMLprim value unix_setitimer(value which, value newval)
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{ invalid_argument("setitimer not implemented"); }
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CAMLprim value unix_getitimer(value which)
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{ invalid_argument("getitimer not implemented"); }
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#endif
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