newlib-cygwin/newlib/libc/sys/linux/usleep.c

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2002-04-03 Jeff Johnston <jjohnstn@redhat.com> * configure.host: Add support for machine subdirectory of sys subdirectory. * configure.in: Add check for sys machine subdirectory. * Makefile.am: Ditto. * configure: Regenerated. * Makefile.in: Ditto. * libc/sys/linux/crt0.c: Moved to machine/i386 directory. * libc/sys/linux/sys/syscall.h: Ditto. * libc/sys/linux/sleep.c: New file. * libc/sys/linux/socket.c: Ditto. * libc/sys/linux/sockops.h: Ditto. * libc/sys/linux/stack.c: Ditto. * libc/sys/linux/usleep.c: Ditto. * libc/sys/linux/machine/Makefile.am: Ditto. * libc/sys/linux/machine/Makefile.in: Ditto. * libc/sys/linux/machine/aclocal.m4: Ditto. * libc/sys/linux/machine/configure: Ditto. * libc/sys/linux/machine/configure.in: Ditto. * libc/sys/linux/machine/i386/Makefile.am: Ditto. * libc/sys/linux/machine/i386/Makefile.in: Ditto. * libc/sys/linux/machine/i386/aclocal.m4: Ditto. * libc/sys/linux/machine/i386/configure: Ditto. * libc/sys/linux/machine/i386/configure.in: Ditto. * libc/sys/linux/machine/i386/crt0.c: Ditto. * libc/sys/linux/machine/i386/sigset.c: Ditto. * libc/sys/linux/machine/i386/sigstack.h: Ditto. * libc/sys/linux/machine/i386/socketcall.h: Ditto. * libc/sys/linux/machine/i386/syscall.h: Ditto. * libc/sys/linux/sys/select.h: Ditto. * libc/sys/linux/configure.in: Add support for machine directory. * libc/sys/linux/Makefile.am: Ditto plus add new files above. * libc/sys/linux/Makefile.in: Regenerated. * libc/sys/linux/configure: Ditto. * libc/sys/linux/brk.c: Use machine/syscall.h instead of sys/syscall.h. * libc/sys/linux/inode.c: Ditto. * libc/sys/linux/linux.c: Ditto. * libc/sys/linux/process.c: Ditto. * libc/sys/linux/systat.c: Ditto. * libc/sys/linux/time.c: Ditto. * libc/sys/linux/wait.c: Ditto. * libc/sys/linux/ids.c: Change header plus add setfsgid/setfsuid. * libc/sys/linux/io.c: Change header plus add readv/writev. * libc/sys/linux/signal.c: Change header plus change sigsuspend to use __sigsuspend syscall. * libc/sys/linux/select.c: Change header plus change select to use _newselect syscall. * libc/sys/linux/sys/cdefs.h: Add a number of standard definitions used by glibc header files. * libc/sys/linux/sys/types.h: Add __socklen_t and __useconds_t types.
2002-04-04 06:46:21 +08:00
/* libc/sys/linux/usleep.c - usleep function */
/* Written 2002 by Jeff Johnston */
#include <errno.h>
#include <sys/types.h>
#include <sys/time.h>
#include <linux/times.h>
int usleep(__useconds_t useconds)
{
struct timespec ts;
ts.tv_sec = (long int)useconds / 1000000;
ts.tv_nsec = ((long int)useconds % 1000000) * 1000;
if (!nanosleep(&ts,&ts)) return 0;
if (errno == EINTR) return ts.tv_sec;
return -1;
}