/* $Id: $ */
/** @file
 *
 * kLdr - The Dynamic Loader, Helper Functions.
 *
 * Copyright (c) 2006 knut st. osmundsen <bird@anduin.net>
 *
 *
 * This file is part of kLdr.
 *
 * kLdr is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * kLdr is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with kLdr; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */


#ifndef __kLdrHlp_h__
#define __kLdrHlp_h__

/** Get the minimum of two values. */
#define KLDR_MIN(a, b) ((a) <= (b) ? (a) : (b))

#ifdef __OS2__

int kldrSemInit(void);
int kldrSemTerm(void);
int kldrSemRequest(void);
int kldrSemRelease(void);
int kldrSemGlobalRequest(void);
int kldrSemGlobalRelease(void);

/** Loader file handle. */
typedef unsigned long KLDRFILE;
/** Pointer to a loader file handle. */
typedef KLDRFILE *PKLDRFILE;

int kldrFileOpen(const char *pszFilename, PKLDRFILE pFile);
int kldrFileClose(KLDRFILE File);
int kldrFileRead(KLDRFILE File, off_t off, void *pv, size_t cb);

int kldrGetEnv(const char *pszVar, char *pszVar, size_t *pcchVar)

void *kldrAlloc(size_t cb);
void kldrFree(void *pv);

int kldrPrivateAlloc(void *pv, size_t cb, unsigned fFlags, void **ppv);
int kldrPrivateFree(void *pv, size_t cb);
int kldrSharedAlloc(void *pv, size_t cb, unsigned fFlags, const char *pszFilename, KLDRFILE File, void **ppv);
int kldrSharedFree(void *pv, size_t cb);

void kldrExit(int rc);

/* #elif __WIN__ */

#else



#endif

/*
 * Compiler specific helpers.
 * (I.e. operations that tend to have compiler intrinsic implementations).
 */
#ifdef __GNUC__
/** memcpy */
# define kLdrMemCopy(a,b,c) __builtin_memcpy(a,b,c)
/** memset */
# define kLdrMemSet(a,b,c) __builtin_memset(a,b,c)
#endif

#ifndef kLdrMemCopy
# error "Needs porting to your compiler."
#endif

#endif /* __kLdrHlp_h__ */