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RedHat 9 (Linux i386) - man page for siginterrupt (redhat section 3)

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 inter-
       rupted 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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