siginterrupt - phpMan

SIGINTERRUPT(3)            Linux Programmer’s Manual           SIGINTERRUPT(3)



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
       signal(2)



                                  1993-04-13                   SIGINTERRUPT(3)

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