1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2013 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Eclipse Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.eclipse.org/org/documents/epl-v10.html * 11 * (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <glenn.s.fowler@gmail.com> * 18 * David Korn <dgkorn@gmail.com> * 19 * Phong Vo <phongvo@gmail.com> * 20 * * 21 ***********************************************************************/ 22 23 #include <errno.h> 24 #include <time.h> 25 26 #include "tv.h" 27 28 /* 29 * sleep for tv 30 * non-zero exit if sleep did not complete 31 * with remaining time in rv 32 * 33 * NOTE: some systems hide nanosleep() ouside of -lc -- puleeze 34 */ 35 36 int tvsleep(const Tv_t *tv, Tv_t *rv) { 37 struct timespec stv; 38 struct timespec srv; 39 int r; 40 41 stv.tv_sec = tv->tv_sec; 42 stv.tv_nsec = tv->tv_nsec; 43 if ((r = nanosleep(&stv, &srv)) && errno == EINTR && rv) { 44 rv->tv_sec = srv.tv_sec; 45 rv->tv_nsec = srv.tv_nsec; 46 } 47 return r; 48 } 49