Проект OpenNet: MAN siginterrupt (3) Библиотечные вызовы (FreeBSD и Linux)

Интерактивная система просмотра системных руководств (man-ов)

siginterrupt (3)

>> siginterrupt (3) ( Solaris man: Библиотечные вызовы )

siginterrupt (3) ( FreeBSD man: Библиотечные вызовы )

siginterrupt (3) ( Русские man: Библиотечные вызовы )

siginterrupt (3) ( Linux man: Библиотечные вызовы )

siginterrupt (3) ( POSIX man: Библиотечные вызовы )

NAME

siginterrupt - allow signals to interrupt functions

SYNOPSIS

#include <signal.h>

int siginterrupt(int sig, int flag);

DESCRIPTION

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;
}

RETURN VALUES

Upon successful completion, siginterrupt() returns 0. Otherwise, -1 is returned and errno is set to indicate the error.

ERRORS

The siginterrupt() function will fail if:

EINVAL

: The sig argument is not a valid signal number.

USAGE

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().