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101 lines
3.6 KiB
C
101 lines
3.6 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*
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* Copyright © 2000 The author.
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* The author prefers this code not be used for military purposes.
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*
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*
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* Author: Thomas Radke <tradke@aei-potsdam.mpg.de>
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* Tuesday, September 12, 2000
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*
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* Purpose: The public header file for the Stream Virtual File Driver.
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*
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* Modifications:
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* Thomas Radke, Thursday, October 26, 2000
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* Added support for Windows.
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*
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*/
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#ifndef H5FDstream_H
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#define H5FDstream_H
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#ifdef H5_HAVE_STREAM
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# define H5FD_STREAM (H5FD_stream_init())
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#else
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# define H5FD_STREAM (-1)
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#endif /*H5_HAVE_STREAM */
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#ifdef H5_HAVE_STREAM
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/* check what sockets type we have (Unix or Windows sockets)
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Note that only MS compilers require to use Windows sockets
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but gcc under Windows does not. */
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#if ! defined(H5_HAVE_WINSOCK_H) || defined(__GNUC__)
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#define H5FD_STREAM_HAVE_UNIX_SOCKETS 1
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#endif
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/* define the data type for socket descriptors
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and the constant indicating an invalid descriptor */
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#ifdef H5FD_STREAM_HAVE_UNIX_SOCKETS
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#define H5FD_STREAM_SOCKET_TYPE int
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#define H5FD_STREAM_INVALID_SOCKET -1
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#else
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#include <winsock.h>
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#define H5FD_STREAM_SOCKET_TYPE SOCKET
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#define H5FD_STREAM_INVALID_SOCKET INVALID_SOCKET
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* prototype for read broadcast callback routine */
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typedef int (*H5FD_stream_broadcast_t) (unsigned char **file,
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haddr_t *len,
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void *arg);
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/* driver-specific file access properties */
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typedef struct H5FD_stream_fapl_t
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{
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size_t increment; /* how much to grow memory in reallocs */
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H5FD_STREAM_SOCKET_TYPE socket; /* externally provided socket descriptor*/
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hbool_t do_socket_io; /* do I/O on socket */
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int backlog; /* backlog argument for listen call */
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H5FD_stream_broadcast_t broadcast_fn; /* READ broadcast callback */
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void *broadcast_arg; /* READ broadcast callback user argument*/
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unsigned int maxhunt; /* how many more ports to try to bind to*/
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unsigned short int port; /* port a socket was bound/connected to */
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} H5FD_stream_fapl_t;
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/* prototypes of exported functions */
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H5_DLL hid_t H5FD_stream_init (void);
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H5_DLL void H5FD_stream_term(void);
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H5_DLL herr_t H5Pset_fapl_stream (hid_t fapl_id,
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H5FD_stream_fapl_t *fapl);
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H5_DLL herr_t H5Pget_fapl_stream (hid_t fapl_id,
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H5FD_stream_fapl_t *fapl /*out*/ );
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#ifdef __cplusplus
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}
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#endif
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#endif /* H5_HAVE_STREAM */
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#endif /* H5FDstream_H */
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