86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
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/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
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/* ====================================================================
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* Copyright (c) 2006-2007 Carnegie Mellon University. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* This work was supported in part by funding from the Defense Advanced
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* Research Projects Agency and the National Science Foundation of the
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* United States of America, and the CMU Sphinx Speech Consortium.
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*
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* THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
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* ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
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* NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ====================================================================
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*
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*/
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/**
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* @file mmio.h
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* @brief Memory-mapped I/O wrappers for files.
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* @author David Huggins-Daines <dhuggins@cs.cmu.edu>
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**/
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#ifndef __MMIO_H__
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#define __MMIO_H__
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#include <sphinxbase/sphinxbase_export.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if 0
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/* Fool Emacs. */
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}
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#endif
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/**
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* Abstract structure representing a memory-mapped file.
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**/
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typedef struct mmio_file_s mmio_file_t;
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/**
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* Memory-map a file for reading.
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* @return a mmio_file_t * or NULL for failure.
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**/
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SPHINXBASE_EXPORT
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mmio_file_t *mmio_file_read(const char *filename);
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/**
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* Get a pointer to the memory mapped for a file.
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**/
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SPHINXBASE_EXPORT
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void *mmio_file_ptr(mmio_file_t *mf);
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/**
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* Unmap a file, releasing memory associated with it.
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**/
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SPHINXBASE_EXPORT
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void mmio_file_unmap(mmio_file_t *mf);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __MMIO_H__ */
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