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/*
* Copyright (c) 2004-2007 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 (c) 2007 Cisco Systems, Inc. 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 */
#ifdef HAVE_STRING_H
#include <string.h>
#endif /* HAVE_STRING_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_orted.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_orted_send_xonxoff(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;
}
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s sending %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
(ORTE_IOF_XON == tag) ? "xon" : "xoff"));
/* send the buffer to the HNP */
orte_rml.send_buffer_nb(ORTE_PROC_MY_HNP, buf, ORTE_RML_TAG_IOF_HNP,
0, send_cb, NULL);
}
/*
* 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
*/
static void process_msg(int fd, short event, void *cbdata)
{
orte_message_event_t *mev = (orte_message_event_t*)cbdata;
unsigned char data[ORTE_IOF_BASE_MSG_MAX];
orte_iof_tag_t stream;
int32_t count, numbytes;
orte_process_name_t target;
opal_list_item_t *item;
int rc;
/* see what stream generated this data */
count = 1;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(mev->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(mev->buffer, &target, &count, ORTE_NAME))) {
ORTE_ERROR_LOG(rc);
goto CLEAN_RETURN;
}
/* unpack the data */
numbytes=ORTE_IOF_BASE_MSG_MAX;
if (ORTE_SUCCESS != (rc = opal_dss.unpack(mev->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.iof_output,
"%s unpacked %d bytes for local proc %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), numbytes,
ORTE_NAME_PRINT(&target)));
/* cycle through our list of sinks */
for (item = opal_list_get_first(&mca_iof_orted_component.sinks);
item != opal_list_get_end(&mca_iof_orted_component.sinks);
item = opal_list_get_next(item)) {
orte_iof_sink_t* sink = (orte_iof_sink_t*)item;
/* is this intended for this jobid? */
if (target.jobid == sink->name.jobid) {
/* yes - is this intended for all vpids or this vpid? */
if (ORTE_VPID_WILDCARD == target.vpid ||
sink->name.vpid == target.vpid) {
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s writing data to local proc %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&sink->name)));
if (NULL == sink->wev || 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(&target, stream, data, numbytes, sink->wev)) {
/* getting too backed up - tell the HNP to hold off any more input if we
* haven't already told it
*/
if (!mca_iof_orted_component.xoff) {
mca_iof_orted_component.xoff = true;
orte_iof_orted_send_xonxoff(ORTE_IOF_XOFF);
}
}
}
}
}
CLEAN_RETURN:
/* release the message event */
OBJ_RELEASE(mev);
return;
}
void orte_iof_orted_recv(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata)
{
int rc;
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s iof:orted:receive got message from %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(sender)));
/* don't process this right away - we need to get out of the recv before
* we process the message to avoid performing the rest of the job while
* inside this receive! Instead, setup an event so that the message gets processed
* as soon as we leave the recv.
*
* The macro makes a copy of the buffer, which we release above - the incoming
* buffer, however, is NOT released here, although its payload IS transferred
* to the message buffer for later processing
*/
ORTE_MESSAGE_EVENT(sender, buffer, tag, process_msg);
/* reissue the recv */
if (ORTE_SUCCESS != (rc = orte_rml.recv_buffer_nb(ORTE_NAME_WILDCARD,
ORTE_RML_TAG_IOF_PROXY,
ORTE_RML_NON_PERSISTENT,
orte_iof_orted_recv,
NULL))) {
ORTE_ERROR_LOG(rc);
}
return;
}
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