PXFSIGPROCMASK(3F) Last changed: 2-26-98
NAME
PXFSIGPROCMASK - Examines and changes blocked signals
SYNOPSIS
SUBROUTINE PXFSIGPROCMASK (ihow, jsigset, josigset, ierror)
INTEGER ihow, jsigset, josigset, ierror
IMPLEMENTATION
UNICOS, UNICOS/mk, and IRIX systems
STANDARDS
IEEE standard interface for FORTRAN 77
DESCRIPTION:
The PXFSIGPROCMASK subroutine uses sigprocmask(2) to store the set of
signals blocked from delivery and pending for the calling process.
The following is a list of arguments for this routine:
ihow A default integer input variable containing the manner in
which the set is changed. The possible values are:
SIG_BLOCK Add to current mask set
SIG_UNBLOCK Delete from current mask set
SIG_SETMASK Replace current mask set
This argument is ignored if josigset is NULL. If ihow is
zero, the current set is not changed.
On IRIX systems, the value may also be set to SIG_NOP, which
does not alter the current mask set. This value is
equivalent to providing a NULL handle for josigset.
jsigset A default integer input variable containing a handle created
by PXFSTRUCTCREATE(sigset,...). If nonzero, the handle
points to a set of signals that can be used to change the
currently blocked set.
josigset A default integer output variable containing a handle
created by PXFSTRUCTCREATE(sigset,...). If nonzero, the
handle will be set to the currently blocked signal set. If
zero, the currently blocked signal set will not be changed
and the value of ihow is ignored.
ierrno A default integer output variable that contains zero if
PXFSIGPPROCMASK was successful and nonzero if
PXFSIGPPROCMASK was not successful.
This subroutine may return any of the following error values:
EFAULT The jsigset or josigset argument points outside the
allocated space.
EINVAL The value of ihow is an invalid or unsupported
operation.
EBADHANDLE The jsigset argument is invalid.
On IRIX systems, this routine is in libfortran.so which is linked by
default when compiling programs with the MIPSpro 7 Fortran 90 compiler
or when compiling programs with the -craylibs option to the MIPSpro
7.2 F77 compiler.
When using the CF90 compiler or MIPSpro 7 Fortran 90 compiler on
UNICOS, UNICOS/mk, or IRIX systems, all arguments must be of default
kind unless documented otherwise. On UNICOS and UNICOS/mk, default
kind is KIND=8 for integer, real, complex, and logical arguments; on
IRIX systems, the default kind is KIND=4.
NOTES
Replace any Fortran reference to sigpprocmask() with a subroutine call
to PXFSIGPROCMASK.
SEE ALSOsigprocmask(2)PXFSTRUCTCREATE(3F)
Application Programmer's Library Reference Manual, publication
SR-2165, for the printed version of this man page.
