94 строки
3.5 KiB
C
94 строки
3.5 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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/**
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* @file
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*/
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#ifndef MCA_PTL_TCP_PEER_H
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#define MCA_PTL_TCP_PEER_H
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#include "opal/class/opal_list.h"
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#include "opal/event/event.h"
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#include "mca/pml/pml.h"
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#include "mca/ptl/ptl.h"
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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/**
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* State of TCP peer connection.
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*/
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typedef enum {
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MCA_PTL_TCP_CLOSED,
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MCA_PTL_TCP_CONNECTING,
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MCA_PTL_TCP_CONNECT_ACK,
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MCA_PTL_TCP_CONNECTED,
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MCA_PTL_TCP_SHUTDOWN,
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MCA_PTL_TCP_FAILED
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} mca_ptl_tcp_state_t;
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/**
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* An abstraction that represents a connection to a peer process.
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* An instance of mca_ptl_base_peer_t is associated w/ each process
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* and PTL pair at startup. However, connections to the peer
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* are established dynamically on an as-needed basis:
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*/
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struct mca_ptl_base_peer_t {
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opal_list_item_t super;
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struct mca_ptl_tcp_module_t* peer_ptl; /**< PTL instance that created this connection */
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struct mca_ptl_tcp_proc_t* peer_proc; /**< proc structure corresponding to peer */
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struct mca_ptl_tcp_addr_t* peer_addr; /**< address of peer */
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int peer_sd; /**< socket connection to peer */
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struct mca_ptl_tcp_send_frag_t* peer_send_frag; /**< current send frag being processed */
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struct mca_ptl_tcp_recv_frag_t* peer_recv_frag; /**< current recv frag being processed */
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mca_ptl_tcp_state_t peer_state; /**< current state of the connection */
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size_t peer_retries; /**< number of connection retries attempted */
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opal_list_t peer_frags; /**< list of pending frags to send */
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opal_mutex_t peer_send_lock; /**< lock for concurrent access to peer state */
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opal_mutex_t peer_recv_lock; /**< lock for concurrent access to peer state */
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opal_event_t peer_send_event; /**< event for async processing of send frags */
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opal_event_t peer_recv_event; /**< event for async processing of recv frags */
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bool peer_nbo; /**< convert headers to network byte order? */
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};
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typedef struct mca_ptl_base_peer_t mca_ptl_base_peer_t;
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extern opal_class_t mca_ptl_tcp_peer_t_class;
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typedef struct mca_ptl_base_peer_t mca_ptl_tcp_peer_t;
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void mca_ptl_tcp_set_socket_options(int sd);
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void mca_ptl_tcp_peer_close(mca_ptl_base_peer_t*);
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int mca_ptl_tcp_peer_send(mca_ptl_base_peer_t*, struct mca_ptl_tcp_send_frag_t*, int);
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bool mca_ptl_tcp_peer_accept(mca_ptl_base_peer_t*, struct sockaddr_in*, int);
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void mca_ptl_tcp_peer_shutdown(mca_ptl_base_peer_t*);
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif
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