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/*
* Copyright (C) 2012 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef DSO_UTILS_H
#define DSO_UTILS_H
#include <stdbool.h>
/** Generic pointer to function. */
typedef void (*dso_generic_func)(void);
/** Library handle (opaque). */
struct dso_handle;
/** Symbol lookup table. */
struct dso_symbol {
/** Symbol name */
const char *name;
/** Offset into the supplied vtable where symbol is to be loaded. */
unsigned int offset;
};
/**
* Opens the named shared library.
*
* @param[in] path the library name, or NULL to lookup into loaded libraries
* @return the newly allocated library handle
*/
struct dso_handle *
dso_open(const char *path);
/** Closes and disposed any allocated data. */
void
dso_close(struct dso_handle *h);
/**
* Loads symbols into the supplied vtable.
*
* @param[in] handle the DSO handle
* @param[in] vtable the function table to fill in
* @param[in] vtable_length the size (in bytes) of the function table
* @param[in] symbols the NULL terminated array of symbols to lookup
* @return true on success, false otherwise
**/
bool
dso_get_symbols(
struct dso_handle *h,
void *vtable,
unsigned int vtable_length,
const struct dso_symbol *symbols
);
#endif /* DSO_UTILS_H */
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