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Neither the name of Novell Inc. nor the names of its contributors * may be used to endorse or promote products derived from this * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * @APPLE_LICENSE_HEADER_END@ */ /* ** ** NAME: ** ** dgrq.h ** ** FACILITY: ** ** Remote Procedure Call (RPC) ** ** ABSTRACT: ** ** DG protocol service routines ** ** */ #ifndef _DGRQ_H #define _DGRQ_H /* * R P C _ D G _ R E C V Q _ E L T _ F R O M _ I O V E C T O R _ E L T * * Given an IO vector element, return the associated receive queue element. * This macro is used by internal callers of the "comm_receive/transceive" * path so that can get back a receieve queue element and look at the * header. This macro depends on how "comm_receive" works. */ #define RPC_DG_RECVQ_ELT_FROM_IOVECTOR_ELT(iove) \ ((rpc_dg_recvq_elt_p_t) (iove)->buff_addr) /* * R P C _ D G _ R E C V Q _ R E I N I T * * Reinitialize a receive queue. */ #define RPC_DG_RECVQ_REINIT(rq) { \ if ((rq)->head != NULL) rpc__dg_recvq_free(rq); \ rpc__dg_recvq_init(rq); /* !!! Maybe be smarter later -- this may be losing "history" */ \ } /* * R P C _ D G _ R E C V Q _ I O V E C T O R _ S E T U P * * Setup the return iovector element. * * NOTE WELL that other logic depends on the fact that the "buff_addr" * field of iovector elements points to an "rpc_dg_recvq_elt_t" (rqe). * See comments by RPC_DG_RECVQ_ELT_FROM_IOVECTOR_ELT. */ #define RPC_DG_RECVQ_IOVECTOR_SETUP(data, rqe) { \ (data)->buff_dealloc = (rpc_buff_dealloc_fn_t) rpc__dg_pkt_free_rqe_for_stub; \ (data)->buff_addr = (byte_p_t) (rqe); \ (data)->buff_len = sizeof *(rqe); \ (data)->data_addr = (byte_p_t) &(rqe)->pkt->body; \ (data)->data_len = ((rqe)->hdrp != NULL) ? \ MIN((rqe)->hdrp->len, \ (rqe)->pkt_len - RPC_C_DG_RAW_PKT_HDR_SIZE) : \ (rqe)->pkt_len; \ } PRIVATE void rpc__dg_recvq_init ( rpc_dg_recvq_p_t /*rq*/); PRIVATE void rpc__dg_recvq_free ( rpc_dg_recvq_p_t /*rq*/); #endif /* _DGRQ_H */