134 строки
5.0 KiB
C
134 строки
5.0 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) 2004-2013 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_SCTP_FRAG_H
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#define MCA_BTL_SCTP_FRAG_H
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#define MCA_BTL_SCTP_FRAG_ALIGN (8)
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#include "ompi_config.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_UIO_H
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#include <sys/uio.h>
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#endif
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#include "btl_sctp.h"
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#include "btl_sctp_hdr.h"
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BEGIN_C_DECLS
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#define MCA_BTL_SCTP_FRAG_IOVEC_NUMBER 4
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/**
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* SCTP fragment derived type.
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*/
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struct mca_btl_sctp_frag_t {
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mca_btl_base_descriptor_t base;
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mca_btl_base_segment_t segments[2];
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struct mca_btl_base_endpoint_t *endpoint;
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struct mca_btl_sctp_module_t* btl;
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mca_btl_sctp_hdr_t hdr;
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struct iovec iov[MCA_BTL_SCTP_FRAG_IOVEC_NUMBER + 1];
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struct iovec *iov_ptr;
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size_t iov_cnt;
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size_t iov_idx;
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size_t size;
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int rc;
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ompi_free_list_t* my_list;
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};
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typedef struct mca_btl_sctp_frag_t mca_btl_sctp_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_sctp_frag_t);
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typedef struct mca_btl_sctp_frag_t mca_btl_sctp_frag_eager_t;
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OBJ_CLASS_DECLARATION(mca_btl_sctp_frag_eager_t);
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typedef struct mca_btl_sctp_frag_t mca_btl_sctp_frag_max_t;
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OBJ_CLASS_DECLARATION(mca_btl_sctp_frag_max_t);
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typedef struct mca_btl_sctp_frag_t mca_btl_sctp_frag_user_t;
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OBJ_CLASS_DECLARATION(mca_btl_sctp_frag_user_t);
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/*
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* Macros to allocate/return descriptors from module specific
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* free list(s).
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*/
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#define MCA_BTL_SCTP_FRAG_ALLOC_EAGER(frag) \
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{ \
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\
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ompi_free_list_item_t *item; \
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OMPI_FREE_LIST_GET_MT(&mca_btl_sctp_component.sctp_frag_eager, item); \
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frag = (mca_btl_sctp_frag_t*) item; \
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}
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#define MCA_BTL_SCTP_FRAG_ALLOC_MAX(frag) \
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{ \
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\
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ompi_free_list_item_t *item; \
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OMPI_FREE_LIST_GET_MT(&mca_btl_sctp_component.sctp_frag_max, item); \
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frag = (mca_btl_sctp_frag_t*) item; \
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}
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#define MCA_BTL_SCTP_FRAG_ALLOC_USER(frag) \
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{ \
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ompi_free_list_item_t *item; \
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OMPI_FREE_LIST_GET_MT(&mca_btl_sctp_component.sctp_frag_user, item); \
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frag = (mca_btl_sctp_frag_t*) item; \
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}
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#define MCA_BTL_SCTP_FRAG_RETURN(frag) \
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{ \
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OMPI_FREE_LIST_RETURN_MT(frag->my_list, (ompi_free_list_item_t*)(frag)); \
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}
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#define MCA_BTL_SCTP_FRAG_INIT_DST(frag,ep) \
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do { \
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frag->rc = 0; \
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frag->btl = ep->endpoint_btl; \
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frag->endpoint = ep; \
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frag->iov[0].iov_len = sizeof(frag->hdr); \
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frag->iov[0].iov_base = (IOVBASE_TYPE*)&frag->hdr; \
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frag->iov_cnt = 1; \
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frag->iov_idx = 0; \
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frag->iov_ptr = frag->iov; \
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frag->base.des_src = NULL; \
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frag->base.des_dst_cnt = 0; \
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frag->base.des_dst = frag->segments; \
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frag->base.des_dst_cnt = 1; \
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} while(0)
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#define MCA_BTL_SCTP_MAX_FRAG_SIZE 65536
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bool mca_btl_sctp_frag_large_send(mca_btl_sctp_frag_t*, int sd, int iov_fragment, int *amt_sent);
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int mca_btl_sctp_frag_get_msg_size(mca_btl_sctp_frag_t *frag);
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int mca_btl_sctp_frag_get_msg_tag(mca_btl_sctp_frag_t *frag);
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bool mca_btl_sctp_frag_send(mca_btl_sctp_frag_t*, int sd);
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bool mca_btl_sctp_frag_recv(mca_btl_sctp_frag_t*, int sd, char *buf, int len);
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END_C_DECLS
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#endif
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