Linux repositories inspector
April 13, 1993

manpages-pt-dev

Portuguese Versions of the Manual Pages (dev sections)

manpages-dev

Manual pages about using GNU/Linux for development

man-pages

Linux kernel and C library user-space interface documentation

NAME

siginterrupt - allow signals to interrupt system calls

SYNOPSIS

#include <signal.h>

int siginterrupt(int sig, int flag);

DESCRIPTION

The siginterrupt() function changes the restart behaviour when a system call is interrupted by the signal sig. If the flag argument is false (0), then system calls will be restarted if interrupted by the specified signal sig. This is the default behaviour in Linux. However, when a new signal handler is specified with the signal(2) function, the system call is interrupted by default.
If the flags argument is true(1) and no data has been transferred, then a system call interrupted by the signal sig will return -1 and the global variable errno will be set to EINTR.
If the flags argument is true(1) and data transfer has started, then the system call will be interrupted and will return the actual amount of data transferred.

RETURN VALUE

The siginterrupt() function returns 0 on success, or -1 if the signal number sig is invalid.

ERRORS

EINVAL The specified signal number is invalid.

CONFORMING TO

BSD 4.3

SEE ALSO

⇧ Top