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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) 2004-2009 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 "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/mca/odls/odls_types.h"
#include "orte/util/name_fns.h"
#include "orte/runtime/orte_globals.h"
#include "orte/orted/orted.h"
#include "orte/mca/iof/iof.h"
#include "orte/mca/iof/base/base.h"
#include "iof_orted.h"
/*
* Callback when non-blocking RML send completes.
*/
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_read_handler(int fd, short event, void *cbdata)
{
orte_iof_read_event_t *rev = (orte_iof_read_event_t*)cbdata;
unsigned char data[ORTE_IOF_BASE_MSG_MAX];
opal_buffer_t *buf=NULL;
int rc;
int32_t numbytes;
opal_list_item_t *item;
orte_iof_proc_t *proct;
OPAL_THREAD_LOCK(&mca_iof_orted_component.lock);
/* read up to the fragment size */
#if !defined(__WINDOWS__)
numbytes = read(fd, data, sizeof(data));
#else
{
DWORD readed;
HANDLE handle = (HANDLE)_get_osfhandle(fd);
ReadFile(handle, data, sizeof(data), &readed, NULL);
numbytes = (int)readed;
}
#endif /* !defined(__WINDOWS__) */
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s iof:orted:read handler read %d bytes from %s, fd %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
numbytes, ORTE_NAME_PRINT(&rev->name), fd));
if (numbytes <= 0) {
if (0 > numbytes) {
/* either we have a connection error or it was a non-blocking read */
if (EAGAIN == errno || EINTR == errno) {
/* non-blocking, retry */
opal_event_add(&rev->ev, 0);
OPAL_THREAD_UNLOCK(&mca_iof_orted_component.lock);
return;
}
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s iof:orted:read handler %s Error on connection:%d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&rev->name), fd));
}
/* numbytes must have been zero, so go down and close the fd etc */
goto CLEAN_RETURN;
}
/* see if the user wanted the output directed to files */
if (NULL != orte_output_filename) {
/* find the sink for this rank */
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;
/* if the target is set, then this sink is for another purpose - ignore it */
if (ORTE_JOBID_INVALID != sink->daemon.jobid) {
continue;
}
/* if this sink isn't for output, ignore it */
if (ORTE_IOF_STDIN & sink->tag) {
continue;
}
/* is this the desired proc? */
if (sink->name.jobid == rev->name.jobid &&
sink->name.vpid == rev->name.vpid) {
/* output to the corresponding file */
orte_iof_base_write_output(&rev->name, rev->tag, data, numbytes, sink->wev);
/* done */
break;
}
}
goto RESTART;
}
/* prep the buffer */
buf = OBJ_NEW(opal_buffer_t);
/* pack the stream first - we do this so that flow control messages can
* consist solely of the tag
*/
if (ORTE_SUCCESS != (rc = opal_dss.pack(buf, &rev->tag, 1, ORTE_IOF_TAG))) {
ORTE_ERROR_LOG(rc);
goto CLEAN_RETURN;
}
/* pack name of process that gave us this data */
if (ORTE_SUCCESS != (rc = opal_dss.pack(buf, &rev->name, 1, ORTE_NAME))) {
ORTE_ERROR_LOG(rc);
goto CLEAN_RETURN;
}
/* pack the data - only pack the #bytes we read! */
if (ORTE_SUCCESS != (rc = opal_dss.pack(buf, &data, numbytes, OPAL_BYTE))) {
ORTE_ERROR_LOG(rc);
goto CLEAN_RETURN;
}
/* start non-blocking RML call to forward received data */
OPAL_OUTPUT_VERBOSE((1, orte_iof_base.iof_output,
"%s iof:orted:read handler sending %d bytes to HNP",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), numbytes));
orte_rml.send_buffer_nb(ORTE_PROC_MY_HNP, buf, ORTE_RML_TAG_IOF_HNP,
0, send_cb, NULL);
RESTART:
/* re-add the event */
opal_event_add(&rev->ev, 0);
OPAL_THREAD_UNLOCK(&mca_iof_orted_component.lock);
return;
CLEAN_RETURN:
/* must be an error, or zero bytes were read indicating that the
* proc terminated this IOF channel - either way, find this proc
* on our list and clean up
*/
for (item = opal_list_get_first(&mca_iof_orted_component.procs);
item != opal_list_get_end(&mca_iof_orted_component.procs);
item = opal_list_get_next(item)) {
proct = (orte_iof_proc_t*)item;
if (proct->name.jobid == rev->name.jobid &&
proct->name.vpid == rev->name.vpid) {
/* found it - release corresponding event. This deletes
* the read event and closes the file descriptor
*/
if (rev->tag & ORTE_IOF_STDOUT) {
if( NULL != proct->revstdout ) {
OBJ_RELEASE(proct->revstdout);
}
} else if (rev->tag & ORTE_IOF_STDERR) {
if( NULL != proct->revstderr ) {
OBJ_RELEASE(proct->revstderr);
}
} else if (rev->tag & ORTE_IOF_STDDIAG) {
if( NULL != proct->revstddiag ) {
OBJ_RELEASE(proct->revstddiag);
}
}
/* check to see if they are all done */
if (NULL == proct->revstdout &&
NULL == proct->revstderr &&
NULL == proct->revstddiag) {
opal_buffer_t cmdbuf;
orte_daemon_cmd_flag_t command;
/* this proc's iof is complete */
opal_list_remove_item(&mca_iof_orted_component.procs, item);
/* setup a cmd to notify that the iof is complete */
OBJ_CONSTRUCT(&cmdbuf, opal_buffer_t);
command = ORTE_DAEMON_IOF_COMPLETE;
if (ORTE_SUCCESS != (rc = opal_dss.pack(&cmdbuf, &command, 1, ORTE_DAEMON_CMD))) {
ORTE_ERROR_LOG(rc);
goto CLEANUP;
}
if (ORTE_SUCCESS != (rc = opal_dss.pack(&cmdbuf, &proct->name, 1, ORTE_NAME))) {
ORTE_ERROR_LOG(rc);
goto CLEANUP;
}
ORTE_MESSAGE_EVENT(ORTE_PROC_MY_NAME, &cmdbuf, ORTE_RML_TAG_DAEMON, orte_daemon_cmd_processor);
CLEANUP:
OBJ_DESTRUCT(&cmdbuf);
OBJ_RELEASE(proct);
}
break;
}
}
if (NULL != buf) {
OBJ_RELEASE(buf);
}
OPAL_THREAD_UNLOCK(&mca_iof_orted_component.lock);
return;
}
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