38a0561d9b
Instead of figuring out which free list the fragment belongs to based on size we simply store a pointer to the list which it belongs in the fragment. This was reviewed by Brian and should hit all the branches. This commit was SVN r10072.
136 строки
4.9 KiB
C
136 строки
4.9 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_FRAG_H
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#define MCA_BTL_TCP_FRAG_H
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#define MCA_BTL_TCP_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_tcp.h"
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#include "btl_tcp_hdr.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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OMPI_DECLSPEC OBJ_CLASS_DECLARATION(mca_btl_tcp_frag_t);
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#define MCA_BTL_TCP_FRAG_IOVEC_NUMBER 4
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/**
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* TCP fragment derived type.
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*/
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struct mca_btl_tcp_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_tcp_module_t* btl;
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mca_btl_tcp_hdr_t hdr;
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struct iovec iov[MCA_BTL_TCP_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_tcp_frag_t mca_btl_tcp_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_tcp_frag_t);
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typedef struct mca_btl_tcp_frag_t mca_btl_tcp_frag_eager_t;
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OBJ_CLASS_DECLARATION(mca_btl_tcp_frag_eager_t);
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typedef struct mca_btl_tcp_frag_t mca_btl_tcp_frag_max_t;
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OBJ_CLASS_DECLARATION(mca_btl_tcp_frag_max_t);
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typedef struct mca_btl_tcp_frag_t mca_btl_tcp_frag_user_t;
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OBJ_CLASS_DECLARATION(mca_btl_tcp_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_TCP_FRAG_ALLOC_EAGER(frag, rc) \
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{ \
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\
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opal_list_item_t *item; \
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OMPI_FREE_LIST_WAIT(&mca_btl_tcp_component.tcp_frag_eager, item, rc); \
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frag = (mca_btl_tcp_frag_t*) item; \
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}
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#define MCA_BTL_TCP_FRAG_ALLOC_MAX(frag, rc) \
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{ \
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\
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opal_list_item_t *item; \
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OMPI_FREE_LIST_WAIT(&mca_btl_tcp_component.tcp_frag_max, item, rc); \
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frag = (mca_btl_tcp_frag_t*) item; \
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}
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#define MCA_BTL_TCP_FRAG_ALLOC_USER(frag, rc) \
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{ \
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opal_list_item_t *item; \
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OMPI_FREE_LIST_WAIT(&mca_btl_tcp_component.tcp_frag_user, item, rc); \
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frag = (mca_btl_tcp_frag_t*) item; \
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}
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#define MCA_BTL_TCP_FRAG_RETURN(frag) \
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{ \
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OMPI_FREE_LIST_RETURN(frag->my_list, \
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(opal_list_item_t*)(frag)); \
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}
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#define MCA_BTL_TCP_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 = (void*)&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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bool mca_btl_tcp_frag_send(mca_btl_tcp_frag_t*, int sd);
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bool mca_btl_tcp_frag_recv(mca_btl_tcp_frag_t*, int sd);
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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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