Subversion Repositories WoWGM

#include "pch.h"

#pragma hdrstop

#include "OsFile.h"

//=============================================================================

bool OsFileExists (char* fileName) {

	DWORD dwFileAttributes = GetFileAttributesA(fileName);

	return (dwFileAttributes != INVALID_FILE_ATTRIBUTES && !(dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY));

}

//=============================================================================

bool OsDirectoryExists (char* directory) {

	DWORD dwFileAttributes = GetFileAttributesA(directory);

	return (dwFileAttributes != INVALID_FILE_ATTRIBUTES && (dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY));

}

//=============================================================================

HANDLE OsCreateFile (char*	fileName,

                     DWORD	desiredAccess,

                     DWORD	shareMode,

                     DWORD	createDisposition,

                     DWORD	flagsAndAttributes,

                     HANDLE	extendedFileType) {

	HANDLE result;

	int length = MultiByteToWideChar(CP_UTF8, 0, fileName, -1, NULL, 0);

	LPWSTR fileNameW = new wchar_t[length];

	MultiByteToWideChar(CP_UTF8, 0, fileName, -1, fileNameW, length);

	result = CreateFileW(fileNameW, desiredAccess, shareMode, 0, createDisposition, flagsAndAttributes, extendedFileType);

	delete[] fileNameW;

	return result;

}

//=============================================================================

BOOL OsReadFile (HANDLE hFile, void* buffer, DWORD bytesToRead, DWORD* bytesRead) {

	return ReadFile(hFile, buffer, bytesToRead, bytesRead, 0);

}

//=============================================================================

DWORD OsSetFilePointer (HANDLE hFile, DWORD moveMethod, LONG distanceToMove) {

	DWORD result;

	LONG distanceToMoveHigh;

	distanceToMoveHigh = HIWORD(distanceToMove);

	result = SetFilePointer(hFile, distanceToMove, &distanceToMoveHigh, moveMethod);

	if (result == -1)

	{

		DWORD error = GetLastError();	/* TODO: Do something here? */

		result = -1;

	}

	return result;

}

//=============================================================================

BOOL OsWriteFile (HANDLE hFile, void const* buffer, DWORD bytesToWrite, DWORD* bytesWritten) {

	return WriteFile(hFile, buffer, bytesToWrite, bytesWritten, 0);

}

//=============================================================================

void OsCloseFile (HANDLE hFile) {

	CloseHandle(hFile);

}