'\" te
.\" This manual page is derived from the DAT/uDAPL 1.2 specification.
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.TH DAT_EVD_ENABLE 3DAT "Jul 16, 2004"
.SH NAME
dat_evd_enable \- enable the Event Dispatcher
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR\&.\|.\|. ] \fIfile\fR\&.\|.\|. \fB-ldat\fR [ \fIlibrary\fR\&.\|.\|. ]
#include <\fBdat/udat.h\fR>

DAT_RETURN
    dat_evd_enable(
    IN    DAT_EVD_HANDLE    \fIevd_handle\fR
    )
.fi

.SH PARAMETERS
.sp
.ne 2
.na
\fB\fIevd_handle\fR\fR
.ad
.RS 14n
Handle for an instance of Event Dispatcher.
.RE

.SH DESCRIPTION
.sp
.LP
The \fBdat_evd_enable()\fR function enables the Event Dispatcher so that the
arrival of an event can trigger the associated CNO. The enabling and disabling
EVD has no effect on direct waiters on the EVD. However, direct waiters
effectively take ownership of the EVD, so that the specified CNO is not
triggered even if is enabled.
.sp
.LP
If the Event Dispatcher is already enabled, this operation is no-op.
.SH RETURN VALUES
.sp
.ne 2
.na
\fB\fBDAT_SUCCESS\fR\fR
.ad
.RS 22n
The operation was successful.
.RE

.sp
.ne 2
.na
\fB\fBDAT_INVALID_HANDLE\fR\fR
.ad
.RS 22n
The \fIevd_handle\fR parameter is invalid.
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Standard: uDAPL, 1.1, 1.2
_
MT-Level	Safe
.TE

.SH SEE ALSO
.sp
.LP
\fBdat_evd_disable\fR(3DAT), \fBlibdat\fR(3LIB), \fBattributes\fR(5)