SIGRELSE(3) | Library Functions Manual | SIGRELSE(3)

# NAME

`sigrelse` —
manipulate current signal mask

# LIBRARY

Standard C Library (libc, -lc)

# SYNOPSIS

`#include <signal.h>`

int
`sigrelse`(int sig);

# DESCRIPTION

This interface is made obsolete by sigprocmask(2).

The `sigrelse`() function removes the signal sig from the calling process' signal mask.

# RETURN VALUES

If successful, the `sigrelse`() function returns 0. Otherwise -1 is returned and errno is set to indicate the error.

# ERRORS

The `sigrelse`() function will fail if:

[`EINVAL`]
  The argument sig is not a valid signal number.

# SEE ALSO

sigprocmask(2), sighold(3)

# STANDARDS

The `sigrelse`() function conforms to IEEE Std 1003.1-2001 (“POSIX.1”). It was however marked as obsolete in the IEEE Std 1003.1-2008 (“POSIX.1”) revision of the standard.

April 30, 2010 | NetBSD 9.2