pfm_enable.3ncs

<B>Digital的Unix操作系统VAX 4.2源码</B>

.\"	@(#)pfm_enable.3ncs	8.1 of 9/11/90
.TH pfm_enable 3ncs
.SH Name
pfm_enable \- enable asynchronous faults
.SH Syntax
.nf
#include <idl/c/base.h>
#include <idl/c/pfm.h>

void pfm_$enable()
.fi
.\".SH SYNOPSIS (PASCAL)
.\".DS
.\"\fB%include '/sys/ins/base.ins.pas';\fR
.\"\fB%include '/sys/ins/pfm.ins.pas';\fR
.\"
.\"\fBprocedure pfm_$enable;\fR
.\".DE
.ig
.SH Synopsis (fortran)
.nf
\fB%include '/sys/ins/base.ins.ftn'\fR
\fB%include '/sys/ins/pfm.ins.ftn'\fR

	 \fBcall pfm_$enable\fR
.fi
..
.SH Description
The 
.PN pfm_$enable
routine enables asynchronous faults
after they have been inhibited
by a routine to 
.PN pfm_$inhibit;
.PN pfm_$enable
causes the operating system
to pass asynchronous faults on to the calling process.
.NXR "Fault Management" "pfm_enable"
.PP
While faults are inhibited,
the operating system holds
at most one asynchronous fault.
Consequently,
when 
.PN pfm_$enable
returns, there can be at most one fault
waiting on the process.
If more than one fault was received
between routines to 
.PN pfm_$inhibit
and 
.PN pfm_$enable ,
the process receives the first asynchronous fault received
while faults were inhibited.
.SH See Also
intro(3ncs), pfm_enable_faults(3ncs), pfm_inhibit(3ncs)
.\".DM "\
.\"path syscalls/pfm/pfm_$enable\
.\"type reference\
.\"book syscalls\
.\"chapter pfm\
.\"section pfm_$enable\
.\""
.\".DD "\
.\"enable(ed)(s)(ing) asyn(chronous) fault(s) pfm pfm_$\
.\""