182 lines
4.7 KiB
C++
182 lines
4.7 KiB
C++
//
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// rdpfstore.h
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//
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// Definition of CRdpFileStore, implements ISettingsStore
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//
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// CRdpFileStore implements a persistent settings store for
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// ts client settings.
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//
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// Copyright(C) Microsoft Corporation 2000
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// Author: Nadim Abdo (nadima)
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//
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#ifndef _rdpfstore_h_
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#define _rdpfstore_h_
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#include "setstore.h"
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#include "fstream.h"
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//
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// rdpfile record
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//
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typedef UINT RDPF_RECTYPE;
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#define RDPF_RECTYPE_UINT 0
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#define RDPF_RECTYPE_SZ 1
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#define RDPF_RECTYPE_BINARY 2
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#define RDPF_RECTYPE_UNPARSED 3
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#define RDPF_NAME_LEN 32
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#define IS_VALID_RDPF_TYPECODE(x) \
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(x == RDPF_RECTYPE_UINT || \
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x == RDPF_RECTYPE_SZ || \
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x == RDPF_RECTYPE_BINARY || \
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x == RDPF_RECTYPE_UNPARSED)
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typedef struct tagRDPF_RECORD
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{
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tagRDPF_RECORD* pNext;
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tagRDPF_RECORD* pPrev;
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TCHAR szName[RDPF_NAME_LEN];
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//
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// works like a variant
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//
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RDPF_RECTYPE recType;
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union {
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UINT iVal; // RDPF_RECTYPE_UINT
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LPTSTR szVal; // RDPF_RECTYPE_SZ
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PBYTE pBinVal; // RDPF_RECTYPE_BINARY
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LPTSTR szUnparsed; // RDPF_RECTYPE_UNPARSED
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} u;
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//length of RDPF_RECTYPE_BINARY
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DWORD dwBinValLen;
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DWORD flags;
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} RDPF_RECORD, *PRDPF_RECORD;
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class CRdpFileStore : public ISettingsStore
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{
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public:
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CRdpFileStore();
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virtual ~CRdpFileStore();
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//
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// IUnknown methods
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//
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STDMETHOD(QueryInterface)
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( THIS_
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IN REFIID,
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OUT PVOID *
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);
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STDMETHOD_(ULONG,AddRef)
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( THIS
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);
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STDMETHOD_(ULONG,Release)
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( THIS
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);
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//
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// ISettingsStore methods
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//
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//
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// Open a store..Moniker is store specific info that points to the store
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//
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virtual BOOL OpenStore(LPCTSTR szStoreMoniker, BOOL bReadOnly=FALSE);
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//
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// Commit the current in-memory contents of the store
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//
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virtual BOOL CommitStore();
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//
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// Close the store
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//
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virtual BOOL CloseStore();
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//
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// State access functions
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//
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virtual BOOL IsOpenForRead();
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virtual BOOL IsOpenForWrite();
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virtual BOOL IsDirty();
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virtual BOOL SetDirtyFlag(BOOL bIsDirty);
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//
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// Typed read and write functions, writes are not commited until a ComitStore()
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// Values equal to the default are not persisted out
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// On read error (e.g if Name key is not found, the specified default value is returned)
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//
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virtual BOOL ReadString(LPCTSTR szName, LPTSTR szDefault, LPTSTR szOutBuf, UINT strLen);
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virtual BOOL WriteString(LPCTSTR szName, LPTSTR szDefault, LPTSTR szValue,
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BOOL fIgnoreDefault=FALSE);
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virtual BOOL ReadBinary(LPCTSTR szName, PBYTE pOutuf, UINT cbBufLen);
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virtual BOOL WriteBinary(LPCTSTR szName,PBYTE pBuf, UINT cbBufLen);
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virtual BOOL ReadInt(LPCTSTR szName, UINT defaultVal, PUINT pval);
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virtual BOOL WriteInt(LPCTSTR szName, UINT defaultVal, UINT val,
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BOOL fIgnoreDefault=FALSE);
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virtual BOOL ReadBool(LPCTSTR szName, UINT defaultVal, PBOOL pbVal);
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virtual BOOL WriteBool(LPCTSTR szName, UINT defaultVal, BOOL bVal,
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BOOL fIgnoreDefault=FALSE);
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virtual BOOL DeleteValueIfPresent(LPCTSTR szName);
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virtual BOOL IsValuePresent(LPTSTR szName);
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//
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// Initiliaze to an empty store that can be read from
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//
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virtual BOOL SetToNullStore();
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virtual DWORD GetDataLength(LPCTSTR szName);
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protected:
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//
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// Protected member functions
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//
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BOOL ParseFile();
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BOOL DeleteRecords();
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BOOL InsertRecordFromLine(LPTSTR szLine);
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BOOL ParseLine(LPTSTR szLine, PUINT pTypeCode, LPTSTR szNameField, LPTSTR szValueField);
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inline BOOL SetNodeValue(PRDPF_RECORD pNode, RDPF_RECTYPE TypeCode, LPCTSTR szValue);
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BOOL RecordToString(PRDPF_RECORD pNode, LPTSTR szBuf, UINT strLen);
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//
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// Record list fns
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//
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BOOL InsertRecord(LPCTSTR szName, UINT TypeCode, LPCTSTR szValue);
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BOOL InsertIntRecord(LPCTSTR szName, UINT value);
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BOOL InsertBinaryRecord(LPCTSTR szName, PBYTE pBuf, DWORD dwLen);
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inline PRDPF_RECORD FindRecord(LPCTSTR szName);
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inline PRDPF_RECORD NewRecord(LPCTSTR szName, UINT TypeCode);
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inline BOOL AppendRecord(PRDPF_RECORD node);
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inline BOOL DeleteRecord(PRDPF_RECORD node);
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private:
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//
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// Private data members
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//
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LONG _cRef;
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BOOL _fReadOnly;
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BOOL _fOpenForRead;
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BOOL _fOpenForWrite;
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BOOL _fIsDirty;
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PRDPF_RECORD _pRecordListHead;
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PRDPF_RECORD _pRecordListTail;
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TCHAR _szFileName[MAX_PATH];
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//file stream
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CTscFileStream _fs;
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};
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#endif //_rdpfstore_h_
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