siginterrupt(3UCB) SunOS/BSD Compatibility Library Functionssiginterrupt(3UCB)NAMEsiginterrupt - allow signals to interrupt functions
SYNOPSIS
/usr/ucb/cc [ flag ... ] file ...
int siginterrupt(sig, flag)
int sig, flag;
DESCRIPTIONsiginterrupt() is used to change the function restart behavior when a
function is interrupted by the specified signal. If the flag is false
(0), then functions will be restarted if they are interrupted by the
specified signal and no data has been transferred yet. System call
restart is the default behavior when the signal(3C) routine is used.
If the flag is true, (1), then restarting of functions is disabled.
If a function is interrupted by the specified signal and no data has
been transferred, the function will return −1 with errno set to EINTR.
Interrupted functions that have started transferring data will return
the amount of data actually transferred.
Issuing a siginterrupt() call during the execution of a signal handler
will cause the new action to take place on the next signal to be
caught.
RETURN VALUES
A 0 value indicates that the call succeeded. A −1 value indicates
that the call failed and errno is set to indicate the error.
ERRORSsiginterrupt() may return the following error:
EINVAL sig is not a valid signal.
SEE ALSOcc(1B), sigblock(3UCB), sigvec(3UCB), signal(3C)NOTES
Use of these interfaces should be restricted to only applications writ‐
ten on BSD platforms. Use of these interfaces with any of the system
libraries or in multi-threaded applications is unsupported.
This library routine uses an extension of the sigvec(3UCB) function
that is not available in 4.2 BSD, hence it should not be used if back‐
ward compatibility is needed.
SunOS 5.10 30 Oct 2007 siginterrupt(3UCB)