832 строки
35 KiB
C
832 строки
35 KiB
C
/*
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* Copyright (c) 2004-2010 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) 2004-2011 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) 2006-2013 Los Alamos National Security, LLC.
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* All rights reserved.
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* Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2011 Oak Ridge National Labs. All rights reserved.
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* Copyright (c) 2013-2014 Intel, Inc. All rights reserved.
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* Copyright (c) 2014 Mellanox Technologies, Inc.
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* All rights reserved.
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* Copyright (c) 2014 Research Organization for Information Science
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* and Technology (RIST). 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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*/
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#include "orte_config.h"
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <fcntl.h>
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#ifdef HAVE_SYS_UIO_H
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#include <sys/uio.h>
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#endif
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#ifdef HAVE_NET_UIO_H
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#include <net/uio.h>
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#include "opal/opal_socket_errno.h"
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#ifdef HAVE_NETINET_TCP_H
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#include <netinet/tcp.h>
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#endif
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#include "opal_stdint.h"
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#include "opal/types.h"
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#include "opal/mca/backtrace/backtrace.h"
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#include "opal/util/output.h"
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#include "opal/util/net.h"
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#include "opal/util/error.h"
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#include "opal/class/opal_hash_table.h"
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#include "opal/mca/dstore/dstore.h"
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#include "opal/mca/event/event.h"
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#include "opal/mca/sec/sec.h"
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#include "opal/runtime/opal.h"
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#include "orte/util/name_fns.h"
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#include "orte/runtime/orte_globals.h"
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#include "orte/mca/errmgr/errmgr.h"
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#include "orte/mca/ess/ess.h"
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#include "orte/mca/grpcomm/grpcomm.h"
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#include "orte/mca/rml/rml.h"
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#include "orte/mca/routed/routed.h"
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#include "orte/mca/state/state.h"
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#include "orte/runtime/orte_wait.h"
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#include "pmix_server_internal.h"
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static void complete_connect(pmix_server_peer_t *peer);
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static int send_bytes(pmix_server_peer_t* peer)
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{
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pmix_server_send_t* msg = peer->send_msg;
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int rc;
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while (0 < msg->sdbytes) {
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rc = write(peer->sd, msg->sdptr, msg->sdbytes);
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if (rc < 0) {
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if (opal_socket_errno == EINTR) {
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continue;
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} else if (opal_socket_errno == EAGAIN) {
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/* tell the caller to keep this message on active,
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* but let the event lib cycle so other messages
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* can progress while this socket is busy
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*/
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return ORTE_ERR_RESOURCE_BUSY;
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} else if (opal_socket_errno == EWOULDBLOCK) {
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/* tell the caller to keep this message on active,
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* but let the event lib cycle so other messages
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* can progress while this socket is busy
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*/
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return ORTE_ERR_WOULD_BLOCK;
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}
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/* we hit an error and cannot progress this message */
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opal_output(0, "%s->%s pmix_server_msg_send_bytes: write failed: %s (%d) [sd = %d]",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&(peer->name)),
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strerror(opal_socket_errno),
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opal_socket_errno,
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peer->sd);
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return ORTE_ERR_COMM_FAILURE;
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}
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/* update location */
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msg->sdbytes -= rc;
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msg->sdptr += rc;
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}
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/* we sent the full data block */
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return ORTE_SUCCESS;
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}
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/*
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* A file descriptor is available/ready for send. Check the state
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* of the socket and take the appropriate action.
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*/
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void pmix_server_send_handler(int sd, short flags, void *cbdata)
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{
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pmix_server_peer_t* peer = (pmix_server_peer_t*)cbdata;
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pmix_server_send_t* msg = peer->send_msg;
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int rc;
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opal_output_verbose(2, pmix_server_output,
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"%s usock:send_handler called to send to peer %s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&peer->name));
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switch (peer->state) {
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case PMIX_SERVER_CONNECTING:
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case PMIX_SERVER_CLOSED:
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opal_output_verbose(2, pmix_server_output,
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"%s usock:send_handler %s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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pmix_server_state_print(peer->state));
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complete_connect(peer);
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/* de-activate the send event until the connection
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* handshake completes
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*/
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if (peer->send_ev_active) {
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opal_event_del(&peer->send_event);
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peer->send_ev_active = false;
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}
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break;
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case PMIX_SERVER_CONNECTED:
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opal_output_verbose(2, pmix_server_output,
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"%s usock:send_handler SENDING TO %s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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(NULL == peer->send_msg) ? "NULL" : ORTE_NAME_PRINT(&peer->name));
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if (NULL != msg) {
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/* if the header hasn't been completely sent, send it */
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if (!msg->hdr_sent) {
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if (ORTE_SUCCESS == (rc = send_bytes(peer))) {
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/* header is completely sent */
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msg->hdr_sent = true;
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/* setup to send the data */
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if (NULL == msg->data) {
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/* this was a zero-byte msg - nothing more to do */
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OBJ_RELEASE(msg);
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peer->send_msg = NULL;
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goto next;
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} else {
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msg->sdptr = msg->data->base_ptr;
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msg->sdbytes = msg->hdr.nbytes;
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}
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/* fall thru and let the send progress */
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} else if (ORTE_ERR_RESOURCE_BUSY == rc ||
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ORTE_ERR_WOULD_BLOCK == rc) {
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/* exit this event and let the event lib progress */
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return;
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} else {
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// report the error
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opal_output(0, "%s-%s pmix_server_peer_send_handler: unable to send header",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&(peer->name)));
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opal_event_del(&peer->send_event);
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peer->send_ev_active = false;
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OBJ_RELEASE(msg);
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peer->send_msg = NULL;
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goto next;
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}
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}
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/* progress the data transmission */
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if (msg->hdr_sent) {
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if (ORTE_SUCCESS == (rc = send_bytes(peer))) {
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/* this message is complete */
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OBJ_RELEASE(msg);
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peer->send_msg = NULL;
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/* fall thru to queue the next message */
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} else if (ORTE_ERR_RESOURCE_BUSY == rc ||
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ORTE_ERR_WOULD_BLOCK == rc) {
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/* exit this event and let the event lib progress */
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return;
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} else {
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// report the error
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opal_output(0, "%s-%s pmix_server_peer_send_handler: unable to send message ON SOCKET %d",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&(peer->name)), peer->sd);
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opal_event_del(&peer->send_event);
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peer->send_ev_active = false;
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OBJ_RELEASE(msg);
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peer->send_msg = NULL;
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return;
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}
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}
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next:
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/* if current message completed - progress any pending sends by
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* moving the next in the queue into the "on-deck" position. Note
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* that this doesn't mean we send the message right now - we will
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* wait for another send_event to fire before doing so. This gives
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* us a chance to service any pending recvs.
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*/
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peer->send_msg = (pmix_server_send_t*)
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opal_list_remove_first(&peer->send_queue);
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}
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/* if nothing else to do unregister for send event notifications */
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if (NULL == peer->send_msg && peer->send_ev_active) {
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opal_event_del(&peer->send_event);
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peer->send_ev_active = false;
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}
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break;
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default:
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opal_output(0, "%s-%s pmix_server_peer_send_handler: invalid connection state (%d) on socket %d",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&(peer->name)),
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peer->state, peer->sd);
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if (peer->send_ev_active) {
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opal_event_del(&peer->send_event);
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peer->send_ev_active = false;
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}
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break;
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}
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}
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static int read_bytes(pmix_server_peer_t* peer)
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{
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int rc;
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/* read until all bytes recvd or error */
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while (0 < peer->recv_msg->rdbytes) {
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rc = read(peer->sd, peer->recv_msg->rdptr, peer->recv_msg->rdbytes);
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if (rc < 0) {
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if(opal_socket_errno == EINTR) {
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continue;
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} else if (opal_socket_errno == EAGAIN) {
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/* tell the caller to keep this message on active,
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* but let the event lib cycle so other messages
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* can progress while this socket is busy
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*/
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return ORTE_ERR_RESOURCE_BUSY;
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} else if (opal_socket_errno == EWOULDBLOCK) {
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/* tell the caller to keep this message on active,
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* but let the event lib cycle so other messages
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* can progress while this socket is busy
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*/
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return ORTE_ERR_WOULD_BLOCK;
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}
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/* we hit an error and cannot progress this message - report
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* the error back to the RML and let the caller know
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* to abort this message
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*/
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opal_output_verbose(2, pmix_server_output,
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"%s-%s pmix_server_msg_recv: readv failed: %s (%d)",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&(peer->name)),
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strerror(opal_socket_errno),
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opal_socket_errno);
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// pmix_server_peer_close(peer);
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// if (NULL != pmix_server.oob_exception_callback) {
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// pmix_server.oob_exception_callback(&peer->name, ORTE_RML_PEER_DISCONNECTED);
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//}
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return ORTE_ERR_COMM_FAILURE;
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} else if (rc == 0) {
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/* the remote peer closed the connection - report that condition
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* and let the caller know
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*/
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opal_output_verbose(2, pmix_server_output,
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"%s-%s pmix_server_msg_recv: peer closed connection",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&(peer->name)));
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/* stop all events */
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if (peer->recv_ev_active) {
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opal_event_del(&peer->recv_event);
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peer->recv_ev_active = false;
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}
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if (peer->timer_ev_active) {
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opal_event_del(&peer->timer_event);
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peer->timer_ev_active = false;
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}
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if (peer->send_ev_active) {
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opal_event_del(&peer->send_event);
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peer->send_ev_active = false;
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}
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if (NULL != peer->recv_msg) {
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OBJ_RELEASE(peer->recv_msg);
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peer->recv_msg = NULL;
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}
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peer->state = PMIX_SERVER_CLOSED;
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CLOSE_THE_SOCKET(peer->sd);
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//if (NULL != pmix_server.oob_exception_callback) {
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// pmix_server.oob_exception_callback(&peer->peer_name, ORTE_RML_PEER_DISCONNECTED);
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//}
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return ORTE_ERR_CONNECTION_FAILED;
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}
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/* we were able to read something, so adjust counters and location */
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peer->recv_msg->rdbytes -= rc;
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peer->recv_msg->rdptr += rc;
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}
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/* we read the full data block */
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return ORTE_SUCCESS;
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}
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void pmix_server_recv_handler(int sd, short flags, void *cbdata)
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{
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pmix_server_peer_t* peer = (pmix_server_peer_t*)cbdata;
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int rc;
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opal_output_verbose(2, pmix_server_output,
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"%s:usock:recv:handler called for peer %s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&peer->name));
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switch (peer->state) {
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case PMIX_SERVER_CONNECT_ACK:
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if (ORTE_SUCCESS == (rc = pmix_server_peer_recv_connect_ack(peer, peer->sd, NULL))) {
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opal_output_verbose(2, pmix_server_output,
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"%s:usock:recv:handler starting send/recv events",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
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/* we connected! Start the send/recv events */
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if (!peer->recv_ev_active) {
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opal_event_add(&peer->recv_event, 0);
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peer->recv_ev_active = true;
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}
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if (peer->timer_ev_active) {
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opal_event_del(&peer->timer_event);
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peer->timer_ev_active = false;
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}
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/* if there is a message waiting to be sent, queue it */
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if (NULL == peer->send_msg) {
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peer->send_msg = (pmix_server_send_t*)opal_list_remove_first(&peer->send_queue);
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}
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if (NULL != peer->send_msg && !peer->send_ev_active) {
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opal_event_add(&peer->send_event, 0);
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peer->send_ev_active = true;
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}
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/* update our state */
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peer->state = PMIX_SERVER_CONNECTED;
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} else {
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opal_output_verbose(2, pmix_server_output,
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"%s UNABLE TO COMPLETE CONNECT ACK WITH %s",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&peer->name));
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opal_event_del(&peer->recv_event);
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peer->recv_ev_active = false;
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return;
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}
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break;
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case PMIX_SERVER_CONNECTED:
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opal_output_verbose(2, pmix_server_output,
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"%s:usock:recv:handler CONNECTED",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
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/* allocate a new message and setup for recv */
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if (NULL == peer->recv_msg) {
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opal_output_verbose(2, pmix_server_output,
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"%s:usock:recv:handler allocate new recv msg",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
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peer->recv_msg = OBJ_NEW(pmix_server_recv_t);
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if (NULL == peer->recv_msg) {
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opal_output(0, "%s-%s pmix_server_peer_recv_handler: unable to allocate recv message\n",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&(peer->name)));
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return;
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}
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/* start by reading the header */
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peer->recv_msg->rdptr = (char*)&peer->recv_msg->hdr;
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peer->recv_msg->rdbytes = sizeof(pmix_server_hdr_t);
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}
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/* if the header hasn't been completely read, read it */
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if (!peer->recv_msg->hdr_recvd) {
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opal_output_verbose(2, pmix_server_output,
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"%s:usock:recv:handler read hdr",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
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if (ORTE_SUCCESS == (rc = read_bytes(peer))) {
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/* completed reading the header */
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peer->recv_msg->hdr_recvd = true;
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/* if this is a zero-byte message, then we are done */
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if (0 == peer->recv_msg->hdr.nbytes) {
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opal_output_verbose(2, pmix_server_output,
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"%s RECVD ZERO-BYTE MESSAGE FROM %s for tag %d",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&peer->name), peer->recv_msg->hdr.tag);
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peer->recv_msg->data = NULL; // make sure
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peer->recv_msg->rdptr = NULL;
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peer->recv_msg->rdbytes = 0;
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} else {
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opal_output_verbose(2, pmix_server_output,
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"%s:usock:recv:handler allocate data region of size %lu",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), (unsigned long)peer->recv_msg->hdr.nbytes);
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/* allocate the data region */
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peer->recv_msg->data = (char*)malloc(peer->recv_msg->hdr.nbytes);
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/* point to it */
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peer->recv_msg->rdptr = peer->recv_msg->data;
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peer->recv_msg->rdbytes = peer->recv_msg->hdr.nbytes;
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}
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/* fall thru and attempt to read the data */
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} else if (ORTE_ERR_RESOURCE_BUSY == rc ||
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ORTE_ERR_WOULD_BLOCK == rc) {
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/* exit this event and let the event lib progress */
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return;
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} else {
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/* close the connection */
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opal_output_verbose(2, pmix_server_output,
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"%s:usock:recv:handler error reading bytes - closing connection",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
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peer->state = PMIX_SERVER_CLOSED;
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CLOSE_THE_SOCKET(peer->sd);
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return;
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}
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}
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if (peer->recv_msg->hdr_recvd) {
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/* continue to read the data block - we start from
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* wherever we left off, which could be at the
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* beginning or somewhere in the message
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*/
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if (ORTE_SUCCESS == (rc = read_bytes(peer))) {
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/* we recvd all of the message */
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opal_output_verbose(2, pmix_server_output,
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"%s RECVD COMPLETE MESSAGE FROM %s OF %d BYTES TAG %d",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT((orte_process_name_t*)&(peer->recv_msg->hdr.id)),
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(int)peer->recv_msg->hdr.nbytes,
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peer->recv_msg->hdr.tag);
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/* process the message */
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pmix_server_process_message(peer);
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} else if (ORTE_ERR_RESOURCE_BUSY == rc ||
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ORTE_ERR_WOULD_BLOCK == rc) {
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/* exit this event and let the event lib progress */
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return;
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} else {
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// report the error
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opal_output(0, "%s-%s pmix_server_peer_recv_handler: unable to recv message",
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ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
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ORTE_NAME_PRINT(&(peer->name)));
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/* turn off the recv event */
|
|
opal_event_del(&peer->recv_event);
|
|
peer->recv_ev_active = false;
|
|
peer->state = PMIX_SERVER_CLOSED;
|
|
CLOSE_THE_SOCKET(peer->sd);
|
|
return;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
opal_output(0, "%s-%s pmix_server_peer_recv_handler: invalid socket state(%d)",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&(peer->name)),
|
|
peer->state);
|
|
// pmix_server_peer_close(peer);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* A blocking recv on a non-blocking socket. Used to receive the small amount of connection
|
|
* information that identifies the peers endpoint.
|
|
*/
|
|
static bool peer_recv_blocking(pmix_server_peer_t* peer, int sd,
|
|
void* data, size_t size)
|
|
{
|
|
unsigned char* ptr = (unsigned char*)data;
|
|
size_t cnt = 0;
|
|
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s waiting for connect ack from %s",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
(NULL == peer) ? "UNKNOWN" : ORTE_NAME_PRINT(&(peer->name)));
|
|
|
|
while (cnt < size) {
|
|
int retval = recv(sd, (char *)ptr+cnt, size-cnt, 0);
|
|
|
|
/* remote closed connection */
|
|
if (retval == 0) {
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s-%s tcp_peer_recv_blocking: "
|
|
"peer closed connection: peer state %d",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
(NULL == peer) ? "UNKNOWN" : ORTE_NAME_PRINT(&(peer->name)),
|
|
(NULL == peer) ? 0 : peer->state);
|
|
if (NULL != peer) {
|
|
peer->state = PMIX_SERVER_FAILED;
|
|
}
|
|
CLOSE_THE_SOCKET(sd);
|
|
return false;
|
|
}
|
|
|
|
/* socket is non-blocking so handle errors */
|
|
if (retval < 0) {
|
|
if (opal_socket_errno != EINTR &&
|
|
opal_socket_errno != EAGAIN &&
|
|
opal_socket_errno != EWOULDBLOCK) {
|
|
if (peer->state == PMIX_SERVER_CONNECT_ACK) {
|
|
/* If we overflow the listen backlog, it's
|
|
possible that even though we finished the three
|
|
way handshake, the remote host was unable to
|
|
transition the connection from half connected
|
|
(received the initial SYN) to fully connected
|
|
(in the listen backlog). We likely won't see
|
|
the failure until we try to receive, due to
|
|
timing and the like. The first thing we'll get
|
|
in that case is a RST packet, which receive
|
|
will turn into a connection reset by peer
|
|
errno. In that case, leave the socket in
|
|
CONNECT_ACK and propogate the error up to
|
|
recv_connect_ack, who will try to establish the
|
|
connection again */
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s connect ack received error %s from %s",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
strerror(opal_socket_errno),
|
|
(NULL == peer) ? "UNKNOWN" : ORTE_NAME_PRINT(&(peer->name)));
|
|
return false;
|
|
} else {
|
|
opal_output(0,
|
|
"%s tcp_peer_recv_blocking: "
|
|
"recv() failed for %s: %s (%d)\n",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
(NULL == peer) ? "UNKNOWN" : ORTE_NAME_PRINT(&(peer->name)),
|
|
strerror(opal_socket_errno),
|
|
opal_socket_errno);
|
|
if (NULL != peer) {
|
|
peer->state = PMIX_SERVER_FAILED;
|
|
}
|
|
CLOSE_THE_SOCKET(sd);
|
|
return false;
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
cnt += retval;
|
|
}
|
|
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s connect ack received from %s",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
(NULL == peer) ? "UNKNOWN" : ORTE_NAME_PRINT(&(peer->name)));
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Receive the peers globally unique process identification from a newly
|
|
* connected socket and verify the expected response. If so, move the
|
|
* socket to a connected state.
|
|
*/
|
|
int pmix_server_peer_recv_connect_ack(pmix_server_peer_t* pr,
|
|
int sd, pmix_server_hdr_t *dhdr)
|
|
{
|
|
char *msg;
|
|
char *version;
|
|
int rc;
|
|
opal_sec_cred_t creds;
|
|
pmix_server_hdr_t hdr;
|
|
pmix_server_peer_t *peer;
|
|
uint64_t *ui64;
|
|
orte_process_name_t sender;
|
|
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s RECV CONNECT ACK FROM %s ON SOCKET %d",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
(NULL == pr) ? "UNKNOWN" : ORTE_NAME_PRINT(&pr->name), sd);
|
|
|
|
peer = pr;
|
|
/* get the header */
|
|
if (peer_recv_blocking(peer, sd, &hdr, sizeof(pmix_server_hdr_t))) {
|
|
if (NULL != peer) {
|
|
/* If the peer state is CONNECT_ACK, then we were waiting for
|
|
* the connection to be ack'd
|
|
*/
|
|
if (peer->state != PMIX_SERVER_CONNECT_ACK) {
|
|
/* handshake broke down - abort this connection */
|
|
opal_output(0, "%s RECV CONNECT BAD HANDSHAKE (%d) FROM %s ON SOCKET %d",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), peer->state,
|
|
ORTE_NAME_PRINT(&(peer->name)), sd);
|
|
peer->state = PMIX_SERVER_CLOSED;
|
|
CLOSE_THE_SOCKET(peer->sd);
|
|
return ORTE_ERR_UNREACH;
|
|
}
|
|
}
|
|
} else {
|
|
/* unable to complete the recv */
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s unable to complete recv of connect-ack from %s ON SOCKET %d",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
(NULL == peer) ? "UNKNOWN" : ORTE_NAME_PRINT(&peer->name), sd);
|
|
return ORTE_ERR_UNREACH;
|
|
}
|
|
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s connect-ack recvd from %s",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
(NULL == peer) ? "UNKNOWN" : ORTE_NAME_PRINT(&peer->name));
|
|
|
|
/* if the requestor wanted the header returned, then do so now */
|
|
if (NULL != dhdr) {
|
|
*dhdr = hdr;
|
|
}
|
|
|
|
if (hdr.type != PMIX_USOCK_IDENT) {
|
|
opal_output(0, "%s tcp_peer_recv_connect_ack: invalid header type: %d\n",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), hdr.type);
|
|
if (NULL != peer) {
|
|
peer->state = PMIX_SERVER_FAILED;
|
|
}
|
|
CLOSE_THE_SOCKET(sd);
|
|
return ORTE_ERR_UNREACH;
|
|
}
|
|
|
|
/* if we don't already have it, get the peer */
|
|
if (NULL == peer) {
|
|
sender = hdr.id;
|
|
peer = pmix_server_peer_lookup(sd);
|
|
if (NULL == peer) {
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s pmix_server_recv_connect: connection from new peer",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
|
|
peer = OBJ_NEW(pmix_server_peer_t);
|
|
peer->sd = sd;
|
|
peer->name = sender;
|
|
peer->state = PMIX_SERVER_ACCEPTING;
|
|
ui64 = (uint64_t*)(&peer->name);
|
|
if (OPAL_SUCCESS != opal_hash_table_set_value_uint64(pmix_server_peers, (*ui64), peer)) {
|
|
OBJ_RELEASE(peer);
|
|
CLOSE_THE_SOCKET(sd);
|
|
return ORTE_ERR_UNREACH;
|
|
}
|
|
} else if (PMIX_SERVER_CONNECTED == peer->state ||
|
|
PMIX_SERVER_CONNECTING == peer->state ||
|
|
PMIX_SERVER_CONNECT_ACK == peer->state) {
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s EXISTING CONNECTION WITH %s",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&sender));
|
|
if (peer->recv_ev_active) {
|
|
opal_event_del(&peer->recv_event);
|
|
peer->recv_ev_active = false;
|
|
}
|
|
if (peer->send_ev_active) {
|
|
opal_event_del(&peer->send_event);
|
|
peer->send_ev_active = false;
|
|
}
|
|
if (0 < peer->sd) {
|
|
CLOSE_THE_SOCKET(peer->sd);
|
|
peer->sd = -1;
|
|
}
|
|
CLOSE_THE_SOCKET(sd);
|
|
}
|
|
} else {
|
|
/* compare the peers name to the expected value */
|
|
if (OPAL_EQUAL != orte_util_compare_name_fields(ORTE_NS_CMP_ALL, &peer->name, &sender)) {
|
|
opal_output(0, "%s tcp_peer_recv_connect_ack: "
|
|
"received unexpected process identifier %s from %s\n",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&(sender)),
|
|
ORTE_NAME_PRINT(&(peer->name)));
|
|
peer->state = PMIX_SERVER_FAILED;
|
|
CLOSE_THE_SOCKET(peer->sd);
|
|
return ORTE_ERR_UNREACH;
|
|
}
|
|
}
|
|
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s connect-ack header from %s is okay",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&peer->name));
|
|
|
|
/* get the authentication and version payload */
|
|
if (NULL == (msg = (char*)malloc(hdr.nbytes))) {
|
|
peer->state = PMIX_SERVER_FAILED;
|
|
CLOSE_THE_SOCKET(peer->sd);
|
|
return ORTE_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
if (!peer_recv_blocking(peer, sd, msg, hdr.nbytes)) {
|
|
/* unable to complete the recv */
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s unable to complete recv of connect-ack from %s ON SOCKET %d",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&peer->name), peer->sd);
|
|
free(msg);
|
|
return ORTE_ERR_UNREACH;
|
|
}
|
|
|
|
/* check that this is from a matching version */
|
|
version = (char*)(msg);
|
|
if (0 != strcmp(version, orte_version_string)) {
|
|
opal_output(0, "%s tcp_peer_recv_connect_ack: "
|
|
"received different version from %s: %s instead of %s\n",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&(peer->name)),
|
|
version, orte_version_string);
|
|
peer->state = PMIX_SERVER_FAILED;
|
|
CLOSE_THE_SOCKET(peer->sd);
|
|
free(msg);
|
|
return ORTE_ERR_UNREACH;
|
|
}
|
|
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s connect-ack version from %s matches ours",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&peer->name));
|
|
|
|
/* check security token */
|
|
creds.credential = (char*)(msg + strlen(version) + 1);
|
|
creds.size = hdr.nbytes - strlen(version) - 1;
|
|
if (OPAL_SUCCESS != (rc = opal_sec.authenticate(&creds))) {
|
|
ORTE_ERROR_LOG(rc);
|
|
}
|
|
free(msg);
|
|
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s connect-ack %s authenticated",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&peer->name));
|
|
|
|
/* if the requestor wanted the header returned, then they
|
|
* will complete their processing
|
|
*/
|
|
if (NULL != dhdr) {
|
|
return ORTE_SUCCESS;
|
|
}
|
|
|
|
/* connected */
|
|
pmix_server_peer_connected(peer);
|
|
if (2 <= opal_output_get_verbosity(pmix_server_output)) {
|
|
pmix_server_peer_dump(peer, "connected");
|
|
}
|
|
return ORTE_SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* Check the status of the connection. If the connection failed, will retry
|
|
* later. Otherwise, send this processes identifier to the peer on the
|
|
* newly connected socket.
|
|
*/
|
|
static void complete_connect(pmix_server_peer_t *peer)
|
|
{
|
|
int so_error = 0;
|
|
opal_socklen_t so_length = sizeof(so_error);
|
|
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s:usock:complete_connect called for peer %s on socket %d",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&peer->name), peer->sd);
|
|
|
|
/* check connect completion status */
|
|
if (getsockopt(peer->sd, SOL_SOCKET, SO_ERROR, (char *)&so_error, &so_length) < 0) {
|
|
opal_output(0, "%s usock_peer_complete_connect: getsockopt() to %s failed: %s (%d)\n",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&(peer->name)),
|
|
strerror(opal_socket_errno),
|
|
opal_socket_errno);
|
|
peer->state = PMIX_SERVER_FAILED;
|
|
CLOSE_THE_SOCKET(peer->sd);
|
|
return;
|
|
}
|
|
|
|
if (so_error == EINPROGRESS) {
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s:usock:send:handler still in progress",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
|
|
return;
|
|
} else if (so_error == ECONNREFUSED || so_error == ETIMEDOUT) {
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s-%s usock_peer_complete_connect: connection failed: %s (%d)",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&(peer->name)),
|
|
strerror(so_error),
|
|
so_error);
|
|
peer->state = PMIX_SERVER_FAILED;
|
|
CLOSE_THE_SOCKET(peer->sd);
|
|
return;
|
|
} else if (so_error != 0) {
|
|
/* No need to worry about the return code here - we return regardless
|
|
at this point, and if an error did occur a message has already been
|
|
printed for the user */
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s-%s usock_peer_complete_connect: "
|
|
"connection failed with error %d",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&(peer->name)), so_error);
|
|
peer->state = PMIX_SERVER_FAILED;
|
|
CLOSE_THE_SOCKET(peer->sd);
|
|
return;
|
|
}
|
|
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s usock_peer_complete_connect: "
|
|
"sending ack to %s",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&(peer->name)));
|
|
|
|
if (pmix_server_send_connect_ack(peer) == ORTE_SUCCESS) {
|
|
peer->state = PMIX_SERVER_CONNECT_ACK;
|
|
opal_output_verbose(2, pmix_server_output,
|
|
"%s usock_peer_complete_connect: "
|
|
"setting read event on connection to %s",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&(peer->name)));
|
|
|
|
if (!peer->recv_ev_active) {
|
|
opal_event_add(&peer->recv_event, 0);
|
|
peer->recv_ev_active = true;
|
|
}
|
|
} else {
|
|
opal_output(0, "%s usock_peer_complete_connect: unable to send connect ack to %s",
|
|
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
|
|
ORTE_NAME_PRINT(&(peer->name)));
|
|
peer->state = PMIX_SERVER_FAILED;
|
|
CLOSE_THE_SOCKET(peer->sd);
|
|
}
|
|
}
|