#ifndef _PIPEIMPL_H_
#define _PIPEIMPL_H_

#ifndef _WINDOWS_
#   include <windows.h>
#endif

#ifndef _INC_MALLOC
#   include <malloc.h>
#endif

#ifndef _INC_TCHAR
#   ifdef UNICODE
#       define _UNICODE
#   endif
#   include <tchar.h>
#endif

#define EXPORT_PIPE_API

//============================================================================
//  Helper functions
//============================================================================

// Because the value of an invalid HANDLE returned by API functions differs
// between different functions and differs on different Windows platforms,
// this function checks wether the handle has a meaningfull value.
#ifndef __cplusplus

#define IsValidHandle( handle ) ((DWORD)(handle) + 1 > 1)

#else

inline bool IsValidHandle( HANDLE handle )
{
    return INVALID_HANDLE_VALUE != handle && NULL != handle;
}

extern "C" {

#endif  // __cplusplus


EXPORT_PIPE_API HANDLE WINAPI CreateSimplePipeA( LPCSTR lpName );
EXPORT_PIPE_API HANDLE WINAPI CreateSimplePipeW( LPCWSTR lpName );

#ifdef UNICODE
#define CreateSimplePipe    CreateSimplePipeW
#else
#define CreateSimplePipe    CreateSimplePipeA
#endif

EXPORT_PIPE_API HANDLE WINAPI OpenSimplePipeA( LPCSTR lpName );
EXPORT_PIPE_API HANDLE WINAPI OpenSimplePipeW( LPCWSTR lpName );

#ifdef UNICODE
#define OpenSimplePipe  OpenSimplePipeW
#else
#define OpenSimplePipe  OpenSimplePipeA
#endif

EXPORT_PIPE_API HANDLE WINAPI AcceptSimplePipeConnection( HANDLE hPipe );

EXPORT_PIPE_API BOOL WINAPI WaitForSimplePipeA( LPCSTR lpName, DWORD dwTimeOut );
EXPORT_PIPE_API BOOL WINAPI WaitForSimplePipeW( LPCWSTR lpName, DWORD dwTimeOut );

#ifdef UNICODE
#define WaitForSimplePipe   WaitForSimplePipeW
#else
#define WaitForSimplePipe   WaitForSimplePipeA
#endif


EXPORT_PIPE_API BOOL WINAPI WriteSimplePipe( HANDLE hPipe, LPCVOID lpBuffer, DWORD dwBytesToWrite, LPDWORD lpBytesWritten, BOOL bWait );
EXPORT_PIPE_API BOOL WINAPI ReadSimplePipe( HANDLE hPipe, LPVOID lpBuffer, DWORD dwBytesToRead, LPDWORD lpBytesRead, BOOL bWait );
EXPORT_PIPE_API BOOL WINAPI CloseSimplePipe( HANDLE hPipe );

#ifdef __cplusplus
}   // extern "C"
#endif

#endif  // _PIPEIMPL_H_