Copyright (c) 2003, Sun Microsystems, Inc. All Rights Reserved.
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]
#include <signal.h> int siginterrupt(int sig, int flag);
The siginterrupt() function changes the restart behavior when a function is interrupted by the specified signal. The function siginterrupt(sig, flag) has an effect as if implemented as:
siginterrupt(int sig, int flag) {
int ret;
struct sigaction act;
(void) sigaction(sig, NULL, &act);
if (flag)
act.sa_flags &= SA_RESTART;
else
act.sa_flags |= SA_RESTART;
ret = sigaction(sig, &act, NULL);
return ret;
}
Upon successful completion, siginterrupt() returns 0. Otherwise, -1 is returned and errno is set to indicate the error.
The siginterrupt() function will fail if:
EINVAL
The sig argument is not a valid signal number.
The siginterrupt() function supports programs written to historical system interfaces. A standard-conforming application, when being written or rewritten, should use sigaction(2) with the SA_RESTART flag instead of siginterrupt().
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Interface Stability | Standard |
| MT-Level | MT-Safe |
sigaction(2), signal.h(3HEAD), attributes(5), standards(5)