diff options
Diffstat (limited to 'REORG.TODO/sysdeps/mach/usleep.c')
-rw-r--r-- | REORG.TODO/sysdeps/mach/usleep.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/usleep.c b/REORG.TODO/sysdeps/mach/usleep.c new file mode 100644 index 0000000000..49f987df72 --- /dev/null +++ b/REORG.TODO/sysdeps/mach/usleep.c @@ -0,0 +1,41 @@ +/* Copyright (C) 1992-2017 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <mach.h> +#include <sys/time.h> +#include <unistd.h> + +/* Sleep USECONDS microseconds, or until a previously set timer goes off. */ +int +usleep (useconds_t useconds) +{ + mach_port_t recv; + struct timeval before, after; + + recv = __mach_reply_port (); + + if (__gettimeofday (&before, NULL) < 0) + return -1; + (void) __mach_msg (NULL, MACH_RCV_MSG|MACH_RCV_TIMEOUT|MACH_RCV_INTERRUPT, + 0, 0, recv, (useconds + 999) / 1000, MACH_PORT_NULL); + __mach_port_destroy (mach_task_self (), recv); + if (__gettimeofday (&after, NULL) < 0) + return -1; + + return 0; +} |