root/opal/mca/btl/tcp/btl_tcp_hdr.h

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INCLUDED FROM


   1 /*
   2  * Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
   3  *                         University Research and Technology
   4  *                         Corporation.  All rights reserved.
   5  * Copyright (c) 2004-2005 The University of Tennessee and The University
   6  *                         of Tennessee Research Foundation.  All rights
   7  *                         reserved.
   8  * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
   9  *                         University of Stuttgart.  All rights reserved.
  10  * Copyright (c) 2004-2005 The Regents of the University of California.
  11  *                         All rights reserved.
  12  * $COPYRIGHT$
  13  *
  14  * Additional copyrights may follow
  15  *
  16  * $HEADER$
  17  */
  18 
  19 #ifndef MCA_BTL_TCP_HDR_H
  20 #define MCA_BTL_TCP_HDR_H
  21 
  22 
  23 #include "opal_config.h"
  24 #include "opal/mca/btl/base/base.h"
  25 #include "btl_tcp.h"
  26 
  27 BEGIN_C_DECLS
  28 
  29 /**
  30  * TCP header.
  31  */
  32 
  33 #define MCA_BTL_TCP_HDR_TYPE_SEND 1
  34 #define MCA_BTL_TCP_HDR_TYPE_PUT  2
  35 #define MCA_BTL_TCP_HDR_TYPE_GET  3
  36 
  37 struct mca_btl_tcp_hdr_t {
  38     mca_btl_base_header_t base;
  39     uint8_t  type;
  40     uint16_t count;
  41     uint32_t size;
  42 };
  43 typedef struct mca_btl_tcp_hdr_t mca_btl_tcp_hdr_t;
  44 
  45 #define MCA_BTL_TCP_HDR_HTON(hdr)     \
  46     do {                              \
  47         hdr.count = htons(hdr.count); \
  48         hdr.size = htonl(hdr.size);   \
  49     } while (0)
  50 
  51 #define MCA_BTL_TCP_HDR_NTOH(hdr)     \
  52     do {                              \
  53         hdr.count = ntohs(hdr.count); \
  54         hdr.size = ntohl(hdr.size);   \
  55     } while (0)
  56 
  57 END_C_DECLS
  58 #endif

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