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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) 2004-2006 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) 2007 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2016 Intel, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*
* The orted IOF component is used in daemons. It is used
* to orted all IOF actions back to the "hnp" IOF component (i.e., the
* IOF component that runs in the HNP). The orted IOF component is
* loaded in an orted and then tied to the stdin, stdout,
* and stderr streams of created child processes via pipes. The orted
* IOF component in the orted then acts as the relay between the
* stdin/stdout/stderr pipes and the IOF component in the HNP.
* This design allows us to manipulate stdin/stdout/stderr from before
* main() in the child process.
*
* Much of the intelligence of this component is actually contained in
* iof_base_endpoint.c (reading and writing to local file descriptors,
* setting up events based on file descriptors, etc.).
*
* A non-blocking OOB receive is posted at the initialization of this
* component to receive all messages from the HNP (e.g., data
* fragments from streams, ACKs to fragments).
*
* Flow control is employed on a per-stream basis to ensure that
* SOURCEs don't overwhelm SINK resources (E.g., send an entire input
* file to an orted before the target process has read any of it).
*
*/
#ifndef ORTE_IOF_ORTED_H
#define ORTE_IOF_ORTED_H
#include "orte_config.h"
#include "opal/class/opal_list.h"
#include "orte/mca/rml/rml_types.h"
#include "orte/mca/iof/iof.h"
BEGIN_C_DECLS
/**
* IOF ORTED Component
*/
struct orte_iof_orted_component_t {
orte_iof_base_component_t super;
opal_list_t procs;
bool xoff;
};
typedef struct orte_iof_orted_component_t orte_iof_orted_component_t;
ORTE_MODULE_DECLSPEC extern orte_iof_orted_component_t mca_iof_orted_component;
extern orte_iof_base_module_t orte_iof_orted_module;
void orte_iof_orted_recv(int status, orte_process_name_t* sender,
opal_buffer_t* buffer, orte_rml_tag_t tag,
void* cbdata);
void orte_iof_orted_read_handler(int fd, short event, void *data);
void orte_iof_orted_send_xonxoff(orte_iof_tag_t tag);
END_C_DECLS
#endif
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