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, const void *buffer, DWORD bytesToWrite, DWORD *bytesWritten)
{
        return WriteFile(hFile, buffer, bytesToWrite, bytesWritten, 0);
}

void OsCloseFile(HANDLE hFile)
{
        CloseHandle(hFile);
}