92 строки
4.0 KiB
C
92 строки
4.0 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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#ifndef MCA_BTL_TCP_ENDPOINT_H
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#define MCA_BTL_TCP_ENDPOINT_H
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#include "opal/class/opal_list.h"
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#include "opal/event/event.h"
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#include "ompi/mca/pml/pml.h"
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#include "ompi/mca/btl/btl.h"
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#include "btl_tcp_frag.h"
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#include "btl_tcp.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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OBJ_CLASS_DECLARATION(mca_btl_tcp_endpoint_t);
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#define MCA_BTL_TCP_ENDPOINT_CACHE 1
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/**
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* State of TCP endpoint connection.
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*/
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typedef enum {
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MCA_BTL_TCP_CLOSED,
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MCA_BTL_TCP_CONNECTING,
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MCA_BTL_TCP_CONNECT_ACK,
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MCA_BTL_TCP_CONNECTED,
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MCA_BTL_TCP_SHUTDOWN,
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MCA_BTL_TCP_FAILED
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} mca_btl_tcp_state_t;
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/**
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* An abstraction that represents a connection to a endpoint process.
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* An instance of mca_btl_base_endpoint_t is associated w/ each process
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* and BTL pair at startup. However, connections to the endpoint
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* are established dynamically on an as-needed basis:
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*/
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struct mca_btl_base_endpoint_t {
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opal_list_item_t super;
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struct mca_btl_tcp_module_t* endpoint_btl; /**< BTL instance that created this connection */
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struct mca_btl_tcp_proc_t* endpoint_proc; /**< proc structure corresponding to endpoint */
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struct mca_btl_tcp_addr_t* endpoint_addr; /**< address of endpoint */
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int endpoint_sd; /**< socket connection to endpoint */
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#if MCA_BTL_TCP_ENDPOINT_CACHE
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char* endpoint_cache; /**< cache for the recv (reduce the number of recv syscall) */
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char* endpoint_cache_pos; /**< current position in the cache */
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size_t endpoint_cache_length; /**< length of the data in the cache */
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#endif /* MCA_BTL_TCP_ENDPOINT_CACHE */
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struct mca_btl_tcp_frag_t* endpoint_send_frag; /**< current send frag being processed */
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struct mca_btl_tcp_frag_t* endpoint_recv_frag; /**< current recv frag being processed */
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mca_btl_tcp_state_t endpoint_state; /**< current state of the connection */
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size_t endpoint_retries; /**< number of connection retries attempted */
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opal_list_t endpoint_frags; /**< list of pending frags to send */
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opal_mutex_t endpoint_send_lock; /**< lock for concurrent access to endpoint state */
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opal_mutex_t endpoint_recv_lock; /**< lock for concurrent access to endpoint state */
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opal_event_t endpoint_send_event; /**< event for async processing of send frags */
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opal_event_t endpoint_recv_event; /**< event for async processing of recv frags */
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bool endpoint_nbo; /**< convert headers to network byte order? */
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};
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typedef struct mca_btl_base_endpoint_t mca_btl_base_endpoint_t;
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typedef mca_btl_base_endpoint_t mca_btl_tcp_endpoint_t;
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void mca_btl_tcp_set_socket_options(int sd);
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void mca_btl_tcp_endpoint_close(mca_btl_base_endpoint_t*);
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int mca_btl_tcp_endpoint_send(mca_btl_base_endpoint_t*, struct mca_btl_tcp_frag_t*);
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bool mca_btl_tcp_endpoint_accept(mca_btl_base_endpoint_t*, struct sockaddr_in*, int);
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void mca_btl_tcp_endpoint_shutdown(mca_btl_base_endpoint_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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