You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
129 lines
4.4 KiB
129 lines
4.4 KiB
//+-------------------------------------------------------------------------
|
|
//
|
|
// Microsoft Windows
|
|
//
|
|
// Copyright (C) Microsoft Corporation, 1997 - 1999
|
|
//
|
|
// File: sharecnx.h
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
#ifndef _WINDOWS_
|
|
# include <windows.h>
|
|
#endif
|
|
#ifndef _INC_COMMCTRL_
|
|
# include <commctrl.h>
|
|
#endif
|
|
#ifndef _INC_COMCTRLP
|
|
# include <comctrlp.h>
|
|
#endif
|
|
|
|
class CShareCnxStatusCache
|
|
{
|
|
public:
|
|
CShareCnxStatusCache(void);
|
|
~CShareCnxStatusCache(void);
|
|
|
|
HRESULT IsOpenConnectionShare(LPCTSTR pszShare, bool bRefresh = false);
|
|
HRESULT IsOpenConnectionPathUNC(LPCTSTR pszPathUNC, bool bRefresh = false);
|
|
|
|
private:
|
|
class Entry
|
|
{
|
|
public:
|
|
enum { StatusOpenCnx = 0x00000001 }; // 1 == Open connection.
|
|
|
|
explicit Entry(LPCTSTR pszShare, DWORD dwStatus = 0);
|
|
~Entry(void);
|
|
//
|
|
// Refresh cached data in m_dwStatus member.
|
|
//
|
|
HRESULT Refresh(void);
|
|
//
|
|
// Returns the status DWORD.
|
|
//
|
|
DWORD Status(void) const
|
|
{ return m_dwStatus; }
|
|
//
|
|
// Returns true if requested status bits are set.
|
|
//
|
|
bool CheckStatus(DWORD dwMask) const
|
|
{ return boolify(dwMask == (m_dwStatus & dwMask)); }
|
|
//
|
|
// Returns error bits from m_dwStatus member.
|
|
//
|
|
HRESULT LastResult(void) const
|
|
{ return m_hrLastResult; }
|
|
//
|
|
// Returns address of share name. Can be NULL.
|
|
//
|
|
LPCTSTR Share(void) const
|
|
{ return m_pszShare; }
|
|
//
|
|
// Returns true if share name ptr is non-null and all error
|
|
// bits in m_dwStatus member are clear.
|
|
//
|
|
bool IsValid(void) const
|
|
{ return NULL != Share() && SUCCEEDED(m_hrLastResult); }
|
|
//
|
|
// Static function for obtaining share's system status. Result goes
|
|
// in m_dwStatus member. Static so that creator of an Entry object
|
|
// can use the status value in the Entry ctor.
|
|
//
|
|
static HRESULT QueryShareStatus(LPCTSTR pszShare, DWORD *pdwStatus);
|
|
|
|
private:
|
|
LPTSTR m_pszShare; // Name of the share associated with entry.
|
|
DWORD m_dwStatus; // Share status and error bits.
|
|
DWORD m_hrLastResult; // Last query result.
|
|
//
|
|
// Prevent copy.
|
|
//
|
|
Entry(const Entry& rhs);
|
|
Entry& operator = (const Entry& rhs);
|
|
//
|
|
// We don't want folks creating blank entries.
|
|
// The error reporting structure assumes that a NULL
|
|
// m_pszShare member indicates an allocation failure.
|
|
//
|
|
Entry(void)
|
|
: m_pszShare(NULL),
|
|
m_dwStatus(0),
|
|
m_hrLastResult(E_FAIL) { }
|
|
};
|
|
|
|
HDPA m_hdpa; // Dynamic array of Entry object ptrs.
|
|
|
|
//
|
|
// Number of entries in cache.
|
|
//
|
|
int Count(void) const;
|
|
//
|
|
// Add an entry to the cache.
|
|
//
|
|
Entry *AddEntry(LPCTSTR pszShare, DWORD dwStatus);
|
|
//
|
|
// Find an entry in the cache.
|
|
//
|
|
Entry *FindEntry(LPCTSTR pszShare) const;
|
|
//
|
|
// Retrieve a given entry at a given DPA index.
|
|
//
|
|
Entry *GetEntry(int iEntry) const
|
|
{ return (Entry *)DPA_GetPtr(m_hdpa, iEntry); }
|
|
//
|
|
// Same as GetEntry but won't AV if m_hdpa is NULL.
|
|
//
|
|
Entry *SafeGetEntry(int iEntry) const
|
|
{ return NULL != m_hdpa ? GetEntry(iEntry) : NULL; }
|
|
//
|
|
// Get the status information for a share.
|
|
//
|
|
HRESULT GetShareStatus(LPCTSTR pszShare, DWORD *pdwStatus, bool bRefresh);
|
|
//
|
|
// Prevent copy.
|
|
//
|
|
CShareCnxStatusCache(const CShareCnxStatusCache& rhs);
|
|
CShareCnxStatusCache& operator = (const CShareCnxStatusCache& rhs);
|
|
};
|
|
|