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Diffstat (limited to 'sysdeps/mach/sleep.c')
-rw-r--r-- | sysdeps/mach/sleep.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sysdeps/mach/sleep.c b/sysdeps/mach/sleep.c new file mode 100644 index 0000000..0e613d3 --- /dev/null +++ b/sysdeps/mach/sleep.c @@ -0,0 +1,45 @@ +/* Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <signal.h> +#include <time.h> +#include <unistd.h> +#include <mach.h> + +/* Make the process sleep for SECONDS seconds, or until a signal arrives + and is not ignored. The function returns the number of seconds less + than SECONDS which it actually slept (zero if it slept the full time). + There is no return value to indicate error, but if `sleep' returns + SECONDS, it probably didn't work. */ +unsigned int +DEFUN(sleep, (seconds), unsigned int seconds) +{ + time_t before, after; + mach_port_t recv; + + recv = __mach_reply_port (); + + before = time ((time_t *) NULL); + (void) __mach_msg (NULL, MACH_RCV_MSG|MACH_RCV_TIMEOUT|MACH_RCV_INTERRUPT, + 0, 0, recv, seconds * 1000, MACH_PORT_NULL); + after = time ((time_t *) NULL); + __mach_port_destroy (__mach_task_self (), recv); + + return seconds - (after - before); +} |