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/*
* Copyright (c) 2012 Los Alamos National Security, LLC.
* All rights reserved.
* Copyright (c) 2014 Intel Corporation. All rights reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "orte_config.h"
#include "orte/constants.h"
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <string.h>
#include "opal/dss/dss.h"
#include "orte/mca/rml/rml.h"
#include "orte/mca/rml/rml_types.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/util/name_fns.h"
#include "orte/runtime/orte_globals.h"
#include "orte/mca/iof/iof_types.h"
#include "orte/mca/iof/base/base.h"
#include "iof_mrorted.h"
static void send_cb(int status, orte_process_name_t *peer,
opal_buffer_t *buf, orte_rml_tag_t tag,
void *cbdata)
{
/* nothing to do here - just release buffer and return */
OBJ_RELEASE(buf);
}
void orte_iof_mrorted_send_xonxoff(orte_process_name_t *name, orte_iof_tag_t tag)
{
opal_buffer_t *buf;
int rc;
buf = OBJ_NEW(opal_buffer_t);
/* pack the tag - we do this first so that flow control messages can
* consist solely of the tag
*/
if (ORTE_SUCCESS != (rc = opal_dss.pack(buf, &tag, 1, ORTE_IOF_TAG))) {
ORTE_ERROR_LOG(rc);
OBJ_RELEASE(buf);
return;
}
/* add the name of the proc */
if (ORTE_SUCCESS != (rc = opal_dss.pack(buf, &tag, 1, ORTE_IOF_TAG))) {
ORTE_ERROR_LOG(rc);
OBJ_RELEASE(buf);
return;
}
OPAL_OUTPUT_VERBOSE((1, orte_iof_base_framework.framework_output,
"%s sending %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(ORTE_IOF_XON == tag) ? "xon" : "xoff"));
/* send the buffer to the HNP */
if (0 > (rc = orte_rml.send_buffer_nb(ORTE_PROC_MY_HNP, buf, ORTE_RML_TAG_IOF_HNP,
send_cb, NULL))) {
ORTE_ERROR_LOG(rc);
}
}
/*
* The only messages coming to an orted are either:
*
* (a) stdin, which is to be copied to whichever local
* procs "pull'd" a copy
*
* (b) flow control messages
*/
void orte_iof_mrorted_recv(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata)
{
unsigned char data[ORTE_IOF_BASE_MSG_MAX];
orte_iof_tag_t stream;
int32_t count, numbytes;
orte_jobid_t jobid;
opal_list_item_t *item;
int rc;
/* see what stream generated this data */
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &stream, &count, ORTE_IOF_TAG))) {
ORTE_ERROR_LOG(rc);
goto CLEAN_RETURN;
}
/* if this isn't stdin, then we have an error */
if (ORTE_IOF_STDIN != stream) {
ORTE_ERROR_LOG(ORTE_ERR_COMM_FAILURE);
goto CLEAN_RETURN;
}
/* unpack the intended target */
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, &jobid, &count, ORTE_JOBID))) {
ORTE_ERROR_LOG(rc);
goto CLEAN_RETURN;
}
/* unpack the data */
numbytes=ORTE_IOF_BASE_MSG_MAX;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(buffer, data, &numbytes, OPAL_BYTE))) {
ORTE_ERROR_LOG(rc);
goto CLEAN_RETURN;
}
/* numbytes will contain the actual #bytes that were sent */
OPAL_OUTPUT_VERBOSE((1, orte_iof_base_framework.framework_output,
"%s unpacked %d bytes for local job %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), numbytes,
ORTE_JOBID_PRINT(jobid)));
/* cycle through our list of procs */
for (item = opal_list_get_first(&mca_iof_mr_orted_component.procs);
item != opal_list_get_end(&mca_iof_mr_orted_component.procs);
item = opal_list_get_next(item)) {
orte_iof_proc_t* sink = (orte_iof_proc_t*)item;
/* is this intended for this jobid? */
if (jobid == sink->name.jobid) {
OPAL_OUTPUT_VERBOSE((1, orte_iof_base_framework.framework_output,
"%s writing data to local proc %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&sink->name)));
if (NULL == sink->sink->wev || sink->sink->wev->fd < 0) {
/* this sink was already closed - ignore this data */
goto CLEAN_RETURN;
}
/* send the bytes down the pipe - we even send 0 byte events
* down the pipe so it forces out any preceding data before
* closing the output stream
*/
if (ORTE_IOF_MAX_INPUT_BUFFERS < orte_iof_base_write_output(&sink->name, stream, data, numbytes, sink->sink->wev)) {
/* getting too backed up - tell the HNP to hold off any more input if we
* haven't already told it
*/
if (!sink->sink->xoff) {
sink->sink->xoff = true;
orte_iof_mrorted_send_xonxoff(&sink->name, ORTE_IOF_XOFF);
}
}
}
}
CLEAN_RETURN:
return;
}
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