39a6057fc6
* General TCP cleanup for OPAL / ORTE
* Simplifying the OOB by moving much of the logic into the RML
* Allowing the OOB RML component to do routing of messages
* Adding a component framework for handling routing tables
* Moving the xcast functionality from the OOB base to its own framework
Includes merge from tmp/bwb-oob-rml-merge revisions:
r15506, r15507, r15508, r15510, r15511, r15512, r15513
This commit was SVN r15528.
The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
r15506
r15507
r15508
r15510
r15511
r15512
r15513
213 строки
6.8 KiB
C
213 строки
6.8 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006-2007 Los Alamos National Security, LLC.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "orte_config.h"
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#include "orte/mca/ns/ns.h"
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#include "orte/mca/oob/tcp/oob_tcp.h"
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/**
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* Process a matched posted receive
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*
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* Note that the match lock must be held prior to the call.
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*/
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static void mca_oob_tcp_msg_matched(mca_oob_tcp_msg_t* msg, mca_oob_tcp_msg_t* match)
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{
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int i,rc;
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if(match->msg_rc < 0) {
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rc = match->msg_rc;
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} else {
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if (msg->msg_flags & ORTE_RML_ALLOC) match->msg_flags |= ORTE_RML_ALLOC;
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/* if we are just doing peek, return bytes without dequeing message */
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rc = mca_oob_tcp_msg_copy(match, msg->msg_uiov, msg->msg_ucnt);
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if(rc >= 0 && ORTE_RML_TRUNC & msg->msg_flags) {
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rc = 0;
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for(i=1; i<match->msg_rwcnt+1; i++)
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rc += match->msg_rwiov[i].iov_len;
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}
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if(ORTE_RML_PEEK & msg->msg_flags) {
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OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_match_lock);
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msg->msg_cbfunc(rc,
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&match->msg_peer,
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msg->msg_uiov,
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msg->msg_ucnt,
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match->msg_hdr.msg_tag,
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msg->msg_cbdata);
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OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_match_lock);
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return;
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}
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}
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/* otherwise remove the match */
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opal_list_remove_item(&mca_oob_tcp_component.tcp_msg_recv, (opal_list_item_t *) match);
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/* invoke callback */
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OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_match_lock);
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msg->msg_cbfunc(rc,
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&match->msg_peer,
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msg->msg_uiov,
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msg->msg_ucnt,
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match->msg_hdr.msg_tag,
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msg->msg_cbdata);
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OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_match_lock);
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/* return match to free list */
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MCA_OOB_TCP_MSG_RETURN(match);
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}
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/*
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* Non-blocking version of mca_oob_recv().
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*
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* @param peer (IN) Opaque name of peer process or ORTE_NAME_WILDCARD for wildcard receive.
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* @param msg (IN) Array of iovecs describing user buffers and lengths.
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* @param count (IN) Number of elements in iovec array.
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* @param tag (IN) User supplied tag for matching send/recv.
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* @param flags (IN) May be MCA_OOB_PEEK to return up to size bytes of msg w/out removing it from the queue,
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* @param cbfunc (IN) Callback function on recv completion.
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* @param cbdata (IN) User data that is passed to callback function.
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* @return OMPI error code (<0) on error.
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*/
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int mca_oob_tcp_recv_nb(
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orte_process_name_t* peer,
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struct iovec* iov,
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int count,
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int tag,
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int flags,
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orte_rml_callback_fn_t cbfunc,
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void* cbdata)
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{
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mca_oob_tcp_msg_t *msg;
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mca_oob_tcp_msg_t *match;
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int i, rc, size = 0;
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/* validate params */
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if(NULL == iov || 0 == count) {
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return ORTE_ERR_BAD_PARAM;
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}
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/* allocate/initialize the posted receive */
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MCA_OOB_TCP_MSG_ALLOC(msg, rc);
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if(NULL == msg) {
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OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_match_lock);
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return rc;
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}
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/* determine overall size of user supplied buffer */
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for(i = 0; i < count; i++) {
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size += iov[i].iov_len;
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}
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/* fill in the header */
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if (NULL == orte_process_info.my_name) {
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msg->msg_hdr.msg_src = *ORTE_NAME_INVALID;
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} else {
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msg->msg_hdr.msg_src = *orte_process_info.my_name;
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}
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msg->msg_hdr.msg_dst = *peer;
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msg->msg_hdr.msg_size = size;
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msg->msg_hdr.msg_tag = tag;
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msg->msg_type = MCA_OOB_TCP_POSTED;
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msg->msg_rc = 0;
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msg->msg_flags = flags;
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msg->msg_uiov = iov;
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msg->msg_ucnt = count;
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msg->msg_cbfunc = cbfunc;
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msg->msg_cbdata = cbdata;
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msg->msg_complete = false;
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msg->msg_peer = *peer;
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msg->msg_rwbuf = NULL;
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msg->msg_rwiov = NULL;
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/* acquire the match lock */
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OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_match_lock);
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if(flags & ORTE_RML_PERSISTENT) {
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opal_list_append(&mca_oob_tcp_component.tcp_msg_post, (opal_list_item_t *) msg);
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while(NULL != (match = mca_oob_tcp_msg_match_recv(peer,tag))) {
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mca_oob_tcp_msg_matched(msg, match);
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}
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} else {
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/* check to see if a matching receive is on the list */
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match = mca_oob_tcp_msg_match_recv(peer, tag);
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if(NULL != match) {
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mca_oob_tcp_msg_matched(msg, match);
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MCA_OOB_TCP_MSG_RETURN(msg);
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} else {
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opal_list_append(&mca_oob_tcp_component.tcp_msg_post, (opal_list_item_t *) msg);
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}
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}
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OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_match_lock);
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return 0;
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}
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/*
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* Cancel non-blocking recv.
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*
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* @param peer (IN) Opaque name of peer process or ORTE_NAME_WILDCARD for wildcard receive.
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* @param tag (IN) User supplied tag for matching send/recv.
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* @return OMPI error code (<0) on error or number of bytes actually received.
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*/
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int mca_oob_tcp_recv_cancel(
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orte_process_name_t* name,
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int tag)
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{
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int matched = 0;
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opal_list_item_t *item, *next;
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/* wait for any previously matched messages to be processed */
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OPAL_THREAD_LOCK(&mca_oob_tcp_component.tcp_match_lock);
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#if OMPI_ENABLE_PROGRESS_THREADS
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if(opal_event_progress_thread() == false) {
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while(mca_oob_tcp_component.tcp_match_count) {
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opal_condition_wait(
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&mca_oob_tcp_component.tcp_match_cond,
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&mca_oob_tcp_component.tcp_match_lock);
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}
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}
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#endif
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/* remove any matching posted receives */
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for(item = opal_list_get_first(&mca_oob_tcp_component.tcp_msg_post);
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item != opal_list_get_end(&mca_oob_tcp_component.tcp_msg_post);
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item = next) {
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mca_oob_tcp_msg_t* msg = (mca_oob_tcp_msg_t*)item;
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next = opal_list_get_next(item);
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if (ORTE_EQUAL == orte_dss.compare(name, &msg->msg_peer, ORTE_NAME)) {
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if (msg->msg_hdr.msg_tag == tag) {
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opal_list_remove_item(&mca_oob_tcp_component.tcp_msg_post, &msg->super.super);
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MCA_OOB_TCP_MSG_RETURN(msg);
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matched++;
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}
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}
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}
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OPAL_THREAD_UNLOCK(&mca_oob_tcp_component.tcp_match_lock);
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return (matched > 0) ? ORTE_SUCCESS : ORTE_ERR_NOT_FOUND;
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}
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