diff options
Diffstat (limited to 'lib/libc/gen/usleep.c')
| -rw-r--r-- | lib/libc/gen/usleep.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/lib/libc/gen/usleep.c b/lib/libc/gen/usleep.c index 3f4a7f538b45..9e29f314d959 100644 --- a/lib/libc/gen/usleep.c +++ b/lib/libc/gen/usleep.c @@ -38,7 +38,10 @@ static char sccsid[] = "@(#)usleep.c 8.1 (Berkeley) 6/4/93"; #include <sys/time.h> #include <signal.h> #include <unistd.h> - +#ifdef _THREAD_SAFE +#include <pthread.h> +#include "pthread_private.h" +#else #define TICK 10000 /* system clock resolution in microseconds */ #define USPS 1000000 /* number of microseconds in a second */ @@ -46,11 +49,22 @@ static char sccsid[] = "@(#)usleep.c 8.1 (Berkeley) 6/4/93"; vec.sv_handler = a; vec.sv_mask = vec.sv_onstack = 0 static int ringring; +#endif + void usleep(useconds) unsigned int useconds; { +#ifdef _THREAD_SAFE + struct timespec time_to_sleep; + + if (useconds) { + time_to_sleep.ts_nsec = (useconds % 1000000) * 1000; + time_to_sleep.ts_sec = useconds / 1000000; + nanosleep(&time_to_sleep,NULL); + } +#else register struct itimerval *itp; struct itimerval itv, oitv; struct sigvec vec, ovec; @@ -90,10 +104,13 @@ usleep(useconds) (void) sigvec(SIGALRM, &ovec, (struct sigvec *)0); (void) sigsetmask(omask); (void) setitimer(ITIMER_REAL, &oitv, (struct itimerval *)0); +#endif } +#ifndef _THREAD_SAFE static void sleephandler() { ringring = 1; } +#endif |