os_specific.hh

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#ifndef _OS_SPECIFICHH_
#define _OS_SPECIFICHH_

#if (defined(__unix__) || defined(unix) || defined(__APPLE__)) && !defined(USG)
#include <sys/param.h>
#define dllexp
#define OM_ALG_DLL_EXPORT
#define OM_XML_DLL_EXPORT
#endif

#include <vector>
#include <string>

/****************************************************************/
/****** DEFINE MACRO TO NEATLY HANDLE UNUSED VARS ***************/
#ifdef _MSC_VER
  // fake use to make unused variable warnings go away in Visual C++
  #define UNUSED(symbol) symbol
#else
  #define UNUSED(symbol)
#endif

/****************************************************************/
/****** Replace finite with _finite when using MSVC *************/
#ifdef _MSC_VER
  #define finite _finite // function used by maxent
#endif

/****************************************************************/
/****** Sleep function (millisenconds) **************************/
#ifdef WIN32
#include <windows.h>
#else
#include <unistd.h>
#define Sleep(x) usleep((x)*1000)
#endif


/****************************************************************/
/********************* Dynamic Linking Loader *******************/

#ifdef WIN32 
#include <windows.h>
typedef HMODULE DLLHandle;
#else
typedef void *DLLHandle;
#endif

extern DLLHandle   dllOpen    ( char const *dll_file_name );
extern void       *dllFunction( DLLHandle, char const *function_name );
extern int         dllClose   ( DLLHandle );
extern const char *dllError   ( DLLHandle );

dllexp void setupExternalResources();

dllexp std::string omDataPath( std::string dir="" );

std::vector<std::string> initialPluginPath();

std::vector<std::string> scanDirectory( std::string dir );

dllexp int initRandom( unsigned int new_seed=0 );

#ifdef WIN32 
// rand_r implementation for Windows
dllexp int rand_r( unsigned * seed );
#endif

std::string getWorkingPath();

bool pathExists( const std::string path );

bool createPath( const std::string path );

#endif