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openmpi/orte/mca/rds/base/rds_base_receive.c

112 строки
2.9 KiB
C

/* -*- C -*-
*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/** @file:
*
*/
/*
* includes
*/
#include "orte_config.h"
#include "orte/orte_constants.h"
#include "orte/orte_types.h"
#include "opal/util/output.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/mca_base_param.h"
#include "orte/dss/dss.h"
#include "orte/util/proc_info.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/rml/rml.h"
#include "orte/mca/rds/base/rds_private.h"
static bool recv_issued=false;
int orte_rds_base_comm_start(void)
{
int rc;
if (recv_issued) {
return ORTE_SUCCESS;
}
if (ORTE_SUCCESS != (rc = orte_rml.recv_buffer_nb(ORTE_RML_NAME_ANY,
ORTE_RML_TAG_RDS,
ORTE_RML_PERSISTENT,
orte_rds_base_recv,
NULL))) {
ORTE_ERROR_LOG(rc);
}
recv_issued = true;
return rc;
}
/*
* handle message from proxies
* NOTE: The incoming buffer "buffer" is OBJ_RELEASED by the calling program.
* DO NOT RELEASE THIS BUFFER IN THIS CODE
*/
void orte_rds_base_recv(int status, orte_process_name_t* sender,
orte_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata)
{
orte_buffer_t answer;
orte_rds_cmd_flag_t command;
orte_std_cntr_t count;
int rc;
count = 1;
if (ORTE_SUCCESS != (rc = orte_dss.unpack(buffer, &command, &count, ORTE_RDS_CMD))) {
ORTE_ERROR_LOG(rc);
return;
}
OBJ_CONSTRUCT(&answer, orte_buffer_t);
switch (command) {
case ORTE_RDS_QUERY_CMD:
if (ORTE_SUCCESS != (rc = orte_dss.pack(&answer, &command, 1, ORTE_RDS_CMD))) {
ORTE_ERROR_LOG(rc);
}
if (ORTE_SUCCESS != (rc = orte_rds_base_query())) {
ORTE_ERROR_LOG(rc);
}
if (0 > orte_rml.send_buffer(sender, &answer, tag, 0)) {
ORTE_ERROR_LOG(ORTE_ERR_COMM_FAILURE);
}
break;
default:
ORTE_ERROR_LOG(ORTE_ERR_VALUE_OUT_OF_BOUNDS);
}
/* cleanup */
OBJ_DESTRUCT(&answer);
}