Originální popis anglicky:
siginterrupt - allow signals to interrupt functions
Návod, kniha: POSIX Programmer's Manual
#include <signal.h>
int siginterrupt(int
sig, int
flag );
The
siginterrupt() function shall change the restart behavior when a
function is interrupted by the specified signal. The function
siginterrupt(
sig,
flag) has an effect as if implemented
as:
int 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() shall return 0; otherwise, -1
shall be returned and
errno set to indicate the error.
The
siginterrupt() function shall fail if:
- EINVAL
- The sig argument is not a valid signal number.
The following sections are informative.
None.
The
siginterrupt() function supports programs written to historical
system interfaces. A conforming application, when being written or rewritten,
should use
sigaction() with the SA_RESTART flag instead of
siginterrupt().
None.
None.
Signal Concepts ,
sigaction() , the Base Definitions volume of
IEEE Std 1003.1-2001,
<signal.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable
Operating System Interface (POSIX), The Open Group Base Specifications Issue
6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics
Engineers, Inc and The Open Group. In the event of any discrepancy between
this version and the original IEEE and The Open Group Standard, the original
IEEE and The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.opengroup.org/unix/online.html
.
