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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) 2004-2011 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 (c) 2011-2013 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2016-2017 Intel, 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 */
#include <string.h>
#include "opal/dss/dss.h"
#include "orte/mca/rml/rml.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/odls/odls_types.h"
#include "orte/util/name_fns.h"
#include "orte/util/threads.h"
#include "orte/mca/state/state.h"
#include "orte/runtime/orte_globals.h"
#include "orte/mca/iof/iof.h"
#include "orte/mca/iof/base/base.h"
#include "iof_orted.h"
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;
orte_iof_proc_t *proct = (orte_iof_proc_t*)rev->proc;
ORTE_ACQUIRE_OBJECT(rev);
/* As we may use timer events, fd can be bogus (-1)
* use the right one here
*/
fd = rev->fd;
/* 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__) */
if (NULL == proct) {
/* nothing we can do */
ORTE_ERROR_LOG(ORTE_ERR_ADDRESSEE_UNKNOWN);
return;
}
OPAL_OUTPUT_VERBOSE((1, orte_iof_base_framework.framework_output,
"%s iof:orted:read handler read %d bytes from %s, fd %d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
numbytes, ORTE_NAME_PRINT(&proct->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 */
ORTE_IOF_READ_ACTIVATE(rev);
return;
}
OPAL_OUTPUT_VERBOSE((1, orte_iof_base_framework.framework_output,
"%s iof:orted:read handler %s Error on connection:%d",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(&proct->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 != rev->sink) {
/* output to the corresponding file */
orte_iof_base_write_output(&proct->name, rev->tag, data, numbytes, rev->sink->wev);
}
if (!proct->copy) {
/* re-add the event */
ORTE_IOF_READ_ACTIVATE(rev);
return;
}
/* 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, &proct->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_framework.framework_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_mgmt_conduit,
ORTE_PROC_MY_HNP, buf, ORTE_RML_TAG_IOF_HNP,
orte_rml_send_callback, NULL);
/* re-add the event */
ORTE_IOF_READ_ACTIVATE(rev);
return;
CLEAN_RETURN:
/* must be an error, or zero bytes were read indicating that the
* proc terminated this IOF channel - either way, release the
* corresponding event. This deletes the read event and closes
* the file descriptor */
if (rev->tag & ORTE_IOF_STDOUT) {
if( NULL != proct->revstdout ) {
orte_iof_base_static_dump_output(proct->revstdout);
OBJ_RELEASE(proct->revstdout);
}
} else if (rev->tag & ORTE_IOF_STDERR) {
if( NULL != proct->revstderr ) {
orte_iof_base_static_dump_output(proct->revstderr);
OBJ_RELEASE(proct->revstderr);
}
#if OPAL_PMIX_V1
} else if (rev->tag & ORTE_IOF_STDDIAG) {
if( NULL != proct->revstddiag ) {
orte_iof_base_static_dump_output(proct->revstddiag);
OBJ_RELEASE(proct->revstddiag);
}
#endif
}
/* check to see if they are all done */
if (NULL == proct->revstdout &&
#if OPAL_PMIX_V1
NULL == proct->revstddiag &&
#endif
NULL == proct->revstderr) {
/* this proc's iof is complete */
ORTE_ACTIVATE_PROC_STATE(&proct->name, ORTE_PROC_STATE_IOF_COMPLETE);
}
if (NULL != buf) {
OBJ_RELEASE(buf);
}
return;
}
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