'\" te
.\" This manual page is derived from the DAT/uDAPL 1.2 specification.
.\" Portions Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
.TH dat_evd_resize 3DAT "16 Jul 2004" "SunOS 5.11" "Direct Access Transport Library Functions"
.SH NAME
dat_evd_resize \- modify the size of the event queue of 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_resize(
    IN    DAT_EVD_HANDLE    \fIevd_handle\fR,
    IN    DAT_COUNT         \fIevd_min_qlen\fR
    )
.fi

.SH PARAMETERS
.sp
.ne 2
.mk
.na
\fB\fIevd_handle\fR\fR
.ad
.RS 16n
.rt  
Handle for an instance of Event Dispatcher.
.RE

.sp
.ne 2
.mk
.na
\fB\fIevd_min_qlen\fR\fR
.ad
.RS 16n
.rt  
New number of events the Event Dispatcher event queue must hold.
.RE

.SH DESCRIPTION
.sp
.LP
The \fBdat_evd_resize()\fR function modifies the size of the event queue of Event Dispatcher.
.sp
.LP
Resizing of Event Dispatcher event queue should not cause any incoming or current events on the event queue to be lost. If the number of entries on the event queue is larger then the requested evd_min_qlen\fI\fR, the operation can return \fBDAT_INVALID_STATE\fR and not change an instance of Event Dispatcher
.SH RETURN VALUES
.sp
.ne 2
.mk
.na
\fB\fBDAT_SUCCESS\fR\fR
.ad
.RS 30n
.rt  
The operation was successful.
.RE

.sp
.ne 2
.mk
.na
\fB\fBDAT_INVALID_HANDLE\fR\fR
.ad
.RS 30n
.rt  
The \fIevd_handle\fR parameter is invalid.
.RE

.sp
.ne 2
.mk
.na
\fB\fBDAT_INVALID_PARAMETER\fR\fR
.ad
.RS 30n
.rt  
The \fIevd_min_qlen\fR parameter is invalid
.RE

.sp
.ne 2
.mk
.na
\fB\fBDAT_INSUFFICIENT_RESOURCES\fR\fR
.ad
.RS 30n
.rt  
The operation failed due to resource limitations
.RE

.sp
.ne 2
.mk
.na
\fB\fBDAT_INVALID_STATE\fR\fR
.ad
.RS 30n
.rt  
Invalid parameter. The number of entries on the event queue of the Event Dispatcher exceeds the requested event queue length.
.RE

.SH USAGE
.sp
.LP
This operation is useful when the potential number of events that could be placed on the event queue changes dynamically.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityCommitted
_
MT-LevelUnsafe
_
StandarduDAPL, 1.1, 1.2
.TE

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