diff options
Diffstat (limited to 'cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/proc/tst.sigwait.c')
-rw-r--r-- | cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/proc/tst.sigwait.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/proc/tst.sigwait.c b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/proc/tst.sigwait.c new file mode 100644 index 0000000..c9cc434 --- /dev/null +++ b/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/proc/tst.sigwait.c @@ -0,0 +1,78 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <signal.h> +#include <time.h> +#include <stdlib.h> +#include <stdio.h> +#include <errno.h> +#include <string.h> + +#define NANOSEC 1000000000 + +int +main(int argc, char **argv) +{ + struct sigevent ev; + struct itimerspec ts; + sigset_t set; + timer_t tid; + char *cmd = argv[0]; + int sig; + + ev.sigev_notify = SIGEV_SIGNAL; + ev.sigev_signo = SIGUSR1; + + if (timer_create(CLOCK_REALTIME, &ev, &tid) == -1) { + (void) fprintf(stderr, "%s: cannot create CLOCK_HIGHRES " + "timer: %s\n", cmd, strerror(errno)); + exit(EXIT_FAILURE); + } + + (void) sigemptyset(&set); + (void) sigaddset(&set, SIGUSR1); + (void) sigprocmask(SIG_BLOCK, &set, NULL); + + ts.it_value.tv_sec = 1; + ts.it_value.tv_nsec = 0; + ts.it_interval.tv_sec = 0; + ts.it_interval.tv_nsec = NANOSEC / 2; + + if (timer_settime(tid, TIMER_RELTIME, &ts, NULL) == -1) { + (void) fprintf(stderr, "%s: timer_settime() failed: %s\n", + cmd, strerror(errno)); + exit(EXIT_FAILURE); + } + + do { + (void) sigwait(&set, &sig); + } while(sig != SIGUSR1); + + /*NOTREACHED*/ + return (0); +} |