mirror of
https://github.com/1dot13/source.git
synced 2026-07-22 13:40:22 +02:00
lalien
43ca24dda8
git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@1871 3b4a5df2-a311-0410-b5c6-a8a6f20db521
108 lines
3.7 KiB
C++
108 lines
3.7 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2001-2004 by Marko Bozikovic
|
|
// All rights reserved
|
|
//
|
|
// This program 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.
|
|
//
|
|
// This program 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 this program; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
//
|
|
// Send bug reports, bug fixes, enhancements, requests, flames, etc., and
|
|
// I'll try to keep a version up to date. I can be reached as follows:
|
|
// marko.bozikovic@alterbox.net
|
|
// bozho@kset.org
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// FileStream.h - implementation of IStream interface on any file
|
|
// (not really COM, I'm faking it here a bit :-)
|
|
//
|
|
|
|
#pragma once
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CreateFileStream - opens/creates a file and returns an IStream interface
|
|
|
|
HRESULT CreateFileStream(
|
|
LPCTSTR lpFileName, // file name
|
|
DWORD dwDesiredAccess, // access mode
|
|
DWORD dwShareMode, // share mode
|
|
LPSECURITY_ATTRIBUTES lpSecurityAttributes, // SD
|
|
DWORD dwCreationDisposition, // how to create
|
|
DWORD dwFlagsAndAttributes, // file attributes
|
|
HANDLE hTemplateFile, // handle to template file
|
|
IStream** ppStream // pointer to IStream interface
|
|
);
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// FileStream class
|
|
|
|
class FileStream : public IStream {
|
|
public:
|
|
FileStream(HANDLE hFile);
|
|
~FileStream();
|
|
|
|
// IUnknown methods
|
|
STDMETHOD(QueryInterface)(REFIID riid, void ** ppv) {
|
|
if (riid == IID_IUnknown) {
|
|
*ppv = static_cast<IStream*>(this);
|
|
} else if (riid == IID_IStream) {
|
|
*ppv = static_cast<IStream*>(this);
|
|
} else {
|
|
*ppv = NULL;
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
static_cast<IUnknown*>(*ppv)->AddRef();
|
|
return S_OK;
|
|
};
|
|
|
|
STDMETHOD_(ULONG, AddRef)(void) {
|
|
return ::InterlockedIncrement(&m_lRefCount);
|
|
};
|
|
|
|
STDMETHOD_(ULONG, Release)(void) {
|
|
long l = ::InterlockedDecrement(&m_lRefCount);
|
|
if (l == 0) delete this;
|
|
return l;
|
|
};
|
|
|
|
// IStream methods
|
|
STDMETHOD(Read)(void *pv, ULONG cb, ULONG *pcbRead);
|
|
STDMETHOD(Write)(void const *pv, ULONG cb, ULONG *pcbWritten);
|
|
STDMETHOD(Seek)(LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition);
|
|
STDMETHOD(SetSize)(ULARGE_INTEGER libNewSize);
|
|
STDMETHOD(CopyTo)(IStream *pstm, ULARGE_INTEGER cb, ULARGE_INTEGER *pcbRead, ULARGE_INTEGER *pcbWritten);
|
|
STDMETHOD(Commit)(DWORD grfCommitFlags);
|
|
STDMETHOD(Revert)(void);
|
|
STDMETHOD(LockRegion)(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType);
|
|
STDMETHOD(UnlockRegion)(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType);
|
|
STDMETHOD(Stat)(STATSTG *pstatstg, DWORD grfStatFlag);
|
|
STDMETHOD(Clone)(IStream **ppstm);
|
|
|
|
private: // private data
|
|
|
|
// reference count
|
|
long m_lRefCount;
|
|
|
|
// file handle
|
|
HANDLE m_hFile;
|
|
};
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|