'\" 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_rmr_free 3DAT "16 Jul 2004" "SunOS 5.11" "Direct Access Transport Library Functions"
.SH NAME
dat_rmr_free \- destroy an instance of the RMR
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR\&.\|.\|. ] \fIfile\fR\&.\|.\|. \fB-ldat\fR [ \fIlibrary\fR\&.\|.\|. ] 
#include <\fBdat/udat.h\fR>

DAT_RETURN
    dat_rmr_free (
    IN    DAT_RMR_HANDLE    rmr_handle
    )
.fi

.SH PARAMETERS
.sp
.ne 2
.mk
.na
\fB\fIrmr_handle\fR\fR
.ad
.RS 14n
.rt  
Handle for an instance of the RMR to be destroyed.
.RE

.SH DESCRIPTION
.sp
.LP
The \fBdat_rmr_free()\fR function destroys an instance of the RMR.
.sp
.LP
Use of the handle of the destroyed RMR in any subsequent operation except for the \fBdat_rmr_free()\fR fails. Any remote RDMA operation that uses the destroyed RMR \fIrmr_context\fR, whose Transport-specific request arrived to the local host after the \fBdat_rmr_free()\fR has completed, fails and reports a protection violation. Remote RDMA operation that uses the destroyed RMR \fIrmr_context\fR, whose Transport-specific request arrived to the local host prior to the \fBdat_rmr_free()\fR return, might or might not complete successfully. If it fails, \fBDAT_DTO_ERR_REMOTE_ACCESS\fR is reported in \fBDAT_DTO_COMPLETION_STATUS\fR for the remote RDMA DTO and the connection is broken.
.sp
.LP
The \fBdat_rmr_free()\fR function is allowed on either bound or unbound RMR. If RMR is bound, \fBdat_rmr_free()\fR unbinds (free HCA TPT and other resources and whatever else binds with length of 0 should do), and then free RMR.
.SH RETURN VALUES
.sp
.ne 2
.mk
.na
\fB\fBDAT_SUCCESS\fR\fR
.ad
.RS 22n
.rt  
The operation was successful.
.RE

.sp
.ne 2
.mk
.na
\fB\fBDAT_INVALID_HANDLE\fR\fR
.ad
.RS 22n
.rt  
The \fIrmr_handle\fR handle is invalid.
.RE

.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)