1152 lines
34 KiB
C
1152 lines
34 KiB
C
//---------------------------------------------------------------------------
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//
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// Copyright (c) Microsoft Corporation 1993-1994
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//
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// File: crl.c
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//
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// This files contains code for the cached reclists
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//
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// History:
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// 09-02-93 ScottH Created
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// 01-31-94 ScottH Moved from cache.c
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//
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//---------------------------------------------------------------------------
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#include "brfprv.h" // common headers
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#include "recact.h"
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#include "res.h"
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#define CRL_Iterate(atom) \
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for (atom = Cache_FindFirstKey(&g_cacheCRL); \
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ATOM_ERR != atom; \
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atom = Cache_FindNextKey(&g_cacheCRL, atom))
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CACHE g_cacheCRL = {0, 0, 0}; // Reclist cache
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#define CRL_EnterCS() EnterCriticalSection(&g_cacheCRL.cs)
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#define CRL_LeaveCS() LeaveCriticalSection(&g_cacheCRL.cs)
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#ifdef DEBUG
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/*----------------------------------------------------------
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Purpose: Dump a CRL entry
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Returns: --
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Cond: --
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*/
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void PRIVATE CRL_DumpEntry(
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CRL * pcrl)
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{
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TCHAR sz[MAXBUFLEN];
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ASSERT(pcrl);
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TRACE_MSG(TF_ALWAYS, TEXT("CRL: Atom %d: %s"), pcrl->atomPath, Atom_GetName(pcrl->atomPath));
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TRACE_MSG(TF_ALWAYS, TEXT(" Outside %d: %s"), pcrl->atomOutside, Atom_GetName(pcrl->atomOutside));
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TRACE_MSG(TF_ALWAYS, TEXT(" Ref [%u] Use [%u] %s %s %s %s"),
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Cache_GetRefCount(&g_cacheCRL, pcrl->atomPath),
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pcrl->ucUse,
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CRL_IsOrphan(pcrl) ? (LPCTSTR) TEXT("Orphan") : (LPCTSTR) TEXT(""),
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IsFlagSet(pcrl->uFlags, CRLF_DIRTY) ? (LPCTSTR) TEXT("Dirty") : (LPCTSTR) TEXT(""),
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IsFlagSet(pcrl->uFlags, CRLF_NUKE) ? (LPCTSTR) TEXT("Nuke") : (LPCTSTR) TEXT(""),
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CRL_IsSubfolderTwin(pcrl) ? (LPCTSTR) TEXT("SubfolderTwin") : (LPCTSTR) TEXT(""));
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TRACE_MSG(TF_ALWAYS, TEXT(" Status: %s"), SzFromIDS(pcrl->idsStatus, sz, ARRAYSIZE(sz)));
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}
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void PUBLIC CRL_DumpAll()
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{
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CRL * pcrl;
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int atom;
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BOOL bDump;
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ENTEREXCLUSIVE()
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{
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bDump = IsFlagSet(g_uDumpFlags, DF_CRL);
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}
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LEAVEEXCLUSIVE()
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if (!bDump)
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return ;
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CRL_Iterate(atom)
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{
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pcrl = Cache_GetPtr(&g_cacheCRL, atom);
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ASSERT(pcrl);
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if (pcrl)
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{
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CRL_DumpEntry(pcrl);
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Cache_DeleteItem(&g_cacheCRL, atom, FALSE, NULL, CRL_Free); // Decrement count
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}
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}
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}
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#endif
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/*----------------------------------------------------------
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Purpose: Return the resource string ID describing the action to take
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Returns: --
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Cond: --
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*/
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UINT PRIVATE IdsFromRAItem(
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LPRA_ITEM pitem)
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{
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UINT ids;
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ASSERT(IsFlagSet(pitem->mask, RAIF_ACTION));
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switch (pitem->uAction)
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{
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case RAIA_TOOUT:
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case RAIA_TOIN:
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case RAIA_CONFLICT:
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case RAIA_DELETEOUT:
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case RAIA_DELETEIN:
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case RAIA_MERGE:
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case RAIA_SOMETHING:
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ids = IDS_STATE_NeedToUpdate;
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break;
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case RAIA_ORPHAN:
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ids = IDS_STATE_Orphan;
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break;
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case RAIA_DONTDELETE:
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case RAIA_SKIP:
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ASSERT(SI_UNAVAILABLE == pitem->siInside.uState ||
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SI_UNAVAILABLE == pitem->siOutside.uState);
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if (SI_UNAVAILABLE == pitem->siOutside.uState)
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{
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if (SI_UNCHANGED == pitem->siInside.uState)
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{
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ids = IDS_STATE_UptodateInBrf;
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}
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else if (SI_UNAVAILABLE != pitem->siInside.uState)
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{
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ids = IDS_STATE_NeedToUpdate;
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}
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else
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{
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ids = IDS_STATE_Unavailable;
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}
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}
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else
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{
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ASSERT(SI_UNAVAILABLE == pitem->siInside.uState);
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ids = IDS_STATE_Unavailable;
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}
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break;
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case RAIA_NOTHING:
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ids = IDS_STATE_Uptodate;
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break;
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default:
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ASSERT(0);
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ids = 0;
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break;
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}
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return ids;
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}
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/*----------------------------------------------------------
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Purpose: Gets the outside sync copy and the resource ID to the
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status string that indicates the status between the
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sync copies.
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Returns: --
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Cond: --
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*/
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void PRIVATE SetPairInfo(
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PCRL pcrl)
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{
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LPCTSTR pszPath = Atom_GetName(pcrl->atomPath);
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LPCTSTR pszName = PathFindFileName(pszPath);
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// Is this an orphan?
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if (CRL_IsOrphan(pcrl))
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{
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// Yes; special case: is this one of the briefcase system files?
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LPCTSTR pszDBName;
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if (IsFlagSet(pcrl->uFlags, CRLF_ISLFNDRIVE))
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pszDBName = g_szDBName;
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else
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pszDBName = g_szDBNameShort;
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if (IsSzEqual(pszName, pszDBName) ||
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IsSzEqual(pszName, c_szDesktopIni))
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{
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// Yes
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pcrl->idsStatus = IDS_STATE_SystemFile;
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}
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// Is this a subfolder twin? (Only orphans are
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// candidates for being subfolder twins.)
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else if (CRL_IsSubfolderTwin(pcrl))
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{
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// Yes
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ASSERT(PathIsDirectory(pszPath));
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pcrl->idsStatus = IDS_STATE_Subfolder;
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}
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else
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{
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// No
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pcrl->idsStatus = IDS_STATE_Orphan;
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}
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if (Atom_IsValid(pcrl->atomOutside))
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{
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Atom_Delete(pcrl->atomOutside); // delete the old one
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}
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pcrl->atomOutside = Atom_Add(TEXT(""));
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}
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else
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{
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// No; get the info for this sync copy
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HRESULT hres;
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LPRA_ITEM pitem;
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TCHAR sz[MAXPATHLEN];
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ASSERT(pcrl->lprl);
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hres = RAI_Create(&pitem, Atom_GetName(pcrl->atomBrf), pszPath,
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pcrl->lprl, pcrl->lpftl);
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if (SUCCEEDED(hres))
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{
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lstrcpy(sz, pitem->siOutside.pszDir);
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// Is this a file?
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if ( !CRL_IsFolder(pcrl) )
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{
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// Yes; atomOutside needs to be a fully qualified path to
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// the outside file/folder--not just the parent folder.
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// That's why we tack on the filename here.
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PathAppend(sz, pszName);
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}
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if (Atom_IsValid(pcrl->atomOutside))
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{
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Atom_Delete(pcrl->atomOutside); // delete the old one
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}
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pcrl->atomOutside = Atom_Add(sz);
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pcrl->idsStatus = IdsFromRAItem(pitem);
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RAI_Free(pitem);
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}
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}
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}
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/*----------------------------------------------------------
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Purpose: Determines whether or not a subfolder of a briefcase
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is the root of a subtree twin.
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Returns: --
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Cond: --
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*/
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BOOL PRIVATE IsSubtreeTwin(HBRFCASE hbrf, LPCTSTR pcszFolder)
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{
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BOOL bIsSubtreeTwin = FALSE;
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PFOLDERTWINLIST pftl;
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ASSERT(PathIsDirectory(pcszFolder));
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/* Create a folder twin list for the folder. */
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if (Sync_CreateFolderList(hbrf, pcszFolder, &pftl) == TR_SUCCESS)
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{
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PCFOLDERTWIN pcft;
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/*
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* Look through the folder twin list for any folder twins with the
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* FT_FL_SUBTREE flag set.
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*/
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for (pcft = pftl->pcftFirst; pcft; pcft = pcft->pcftNext)
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{
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if (pcft->dwFlags & FT_FL_SUBTREE)
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{
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bIsSubtreeTwin = TRUE;
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break;
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}
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}
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Sync_DestroyFolderList(pftl);
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}
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return(bIsSubtreeTwin);
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}
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/*----------------------------------------------------------
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Purpose: Determines whether or not a path is a subfolder of a subtree twin in a
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briefcase.
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Returns: --
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Cond: --
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*/
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BOOL PUBLIC IsSubfolderTwin(HBRFCASE hbrf, LPCTSTR pcszPath)
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{
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BOOL bIsSubfolderTwin = FALSE;
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TCHAR szBrfRoot[MAXPATHLEN];
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if (PathIsDirectory(pcszPath) &&
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PathGetLocality(pcszPath, szBrfRoot) == PL_INSIDE)
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{
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int ncchBrfRootLen;
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TCHAR szParent[MAXPATHLEN];
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ASSERT(PathIsPrefix(szBrfRoot, pcszPath));
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ncchBrfRootLen = lstrlen(szBrfRoot);
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ASSERT(lstrlen(pcszPath) < ARRAYSIZE(szParent));
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lstrcpy(szParent, pcszPath);
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/*
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* Keep whacking off the last path component until we find a parent
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* subtree twin root, or we hit the briefcase root.
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*/
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while (! bIsSubfolderTwin &&
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PathRemoveFileSpec(szParent) &&
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lstrlen(szParent) > ncchBrfRootLen)
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{
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BOOL bIsFolderTwin;
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if (Sync_IsFolder(hbrf, szParent, &bIsFolderTwin) == TR_SUCCESS &&
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bIsFolderTwin)
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{
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bIsSubfolderTwin = IsSubtreeTwin(hbrf, szParent);
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#ifdef DEBUG
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TRACE_MSG(TF_CACHE, TEXT("CACHE Found subfolder twin %s with parent subtree twin root %s."),
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pcszPath,
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szParent);
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#endif
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}
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}
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}
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return(bIsSubfolderTwin);
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}
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/*----------------------------------------------------------
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Purpose: Sets the bSubfolderTwin member of a CRL.
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Returns: --
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Cond: The lprl and lpftl members of the CRL must be filled in before calling
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this function.
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*/
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void PRIVATE SetSubfolderTwinFlag(PCRL pcrl)
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{
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if (! pcrl->lprl && ! pcrl->lpftl)
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{
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if (IsSubfolderTwin(pcrl->hbrf, Atom_GetName(pcrl->atomPath)))
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SetFlag(pcrl->uFlags, CRLF_SUBFOLDERTWIN);
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else
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ClearFlag(pcrl->uFlags, CRLF_SUBFOLDERTWIN);
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}
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else
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{
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ClearFlag(pcrl->uFlags, CRLF_SUBFOLDERTWIN);
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}
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}
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/*----------------------------------------------------------
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Purpose: Free the reclist
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Returns: --
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Cond: hwndOwner is not used, so it is okay for all CRL_ routines
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to pass NULL as hwndOwner.
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This function is serialized by the caller (Cache_Term or
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Cache_DeleteItem).
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*/
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void CALLBACK CRL_Free(
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LPVOID lpv,
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HWND hwndOwner)
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{
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CRL * pcrl = (CRL *)lpv;
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ASSERT(Sync_IsEngineLoaded());
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DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Destroying CRL for %s (0x%lx)"),
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Atom_GetName(pcrl->atomPath), pcrl->hbrf); )
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if (Atom_IsValid(pcrl->atomOutside))
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Atom_Delete(pcrl->atomOutside);
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if (Atom_IsValid(pcrl->atomBrf))
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Atom_Delete(pcrl->atomBrf);
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if (pcrl->lprl)
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Sync_DestroyRecList(pcrl->lprl);
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if (pcrl->lpftl)
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Sync_DestroyFolderList(pcrl->lpftl);
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// The CRL does not own pabortevt, leave it alone
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SharedFree(&pcrl);
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}
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|
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/*----------------------------------------------------------
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Purpose: Create a reclist and (optional) folder twin list for a path.
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Returns: standard result
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S_OK if the item is a twin
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S_FALSE if the item is an orphan
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Cond: --
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*/
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HRESULT PRIVATE CreatePathLists(
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HBRFCASE hbrf,
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PABORTEVT pabortevt,
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int atomPath,
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PRECLIST * lplprl,
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PFOLDERTWINLIST * lplpftl)
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{
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HRESULT hres;
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LPCTSTR pszPath = Atom_GetName(atomPath);
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ASSERT(pszPath);
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ASSERT(hbrf);
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ASSERT(lplprl);
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ASSERT(lplpftl);
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*lplprl = NULL;
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*lplpftl = NULL;
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// Two routes.
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//
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// 1) If the path is to the root of a briefcase,
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// create a complete reclist.
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//
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// 2) Otherwise create a reclist for the individual file or folder
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//
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// Hack: a quick way of telling if atomPath is a briefcase
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// root is by looking for it in the CBS cache.
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// Is this the root of a briefcase?
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if (CBS_Get(atomPath))
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{
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// Yes
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CBS_Delete(atomPath, NULL); // Decrement count
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hres = Sync_CreateCompleteRecList(hbrf, pabortevt, lplprl);
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}
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else
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{
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// No; is this a twin?
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hres = Sync_IsTwin(hbrf, pszPath, 0);
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if (S_OK == hres)
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{
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// Yes; create a reclist (and an optional folder twin list).
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HTWINLIST htl;
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hres = E_OUTOFMEMORY; // assume error
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if (Sync_CreateTwinList(hbrf, &htl) == TR_SUCCESS)
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{
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if (Sync_AddPathToTwinList(hbrf, htl, pszPath, lplpftl))
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{
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hres = Sync_CreateRecListEx(htl, pabortevt, lplprl);
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|
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if (SUCCEEDED(hres))
|
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{
|
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// The object may have been implicitly deleted
|
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// in CreateRecList. Check again.
|
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hres = Sync_IsTwin(hbrf, pszPath, 0);
|
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}
|
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}
|
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Sync_DestroyTwinList(htl);
|
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}
|
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}
|
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}
|
|
|
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if (FAILED(hres))
|
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{
|
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// Cleanup on failure
|
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//
|
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if (*lplpftl)
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Sync_DestroyFolderList(*lplpftl);
|
|
|
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*lplprl = NULL;
|
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*lplpftl = NULL;
|
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}
|
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|
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return hres;
|
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}
|
|
|
|
|
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/*----------------------------------------------------------
|
|
Purpose: Add a CRL entry for the atomPath to the cache. This
|
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consists of creating the reclist (and folder twin list
|
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possibly).
|
|
|
|
If the atomPath is already in the cache, this function
|
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increments the reference count of the item and calls
|
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CRL_Replace.
|
|
|
|
Returns: standard result
|
|
|
|
Cond: Must call CRL_Delete for every call to this function.
|
|
|
|
IMPORTANT: Some portions of code call PathIsDirectory,
|
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which will fail if atomPath does not exist.
|
|
|
|
*/
|
|
HRESULT PUBLIC CRL_Add(
|
|
PCBS pcbs,
|
|
int atomPath)
|
|
{
|
|
HRESULT hres = E_OUTOFMEMORY;
|
|
PRECLIST lprl = NULL;
|
|
PFOLDERTWINLIST lpftl = NULL;
|
|
CRL * pcrl;
|
|
|
|
ASSERT(pcbs);
|
|
|
|
CRL_EnterCS();
|
|
{
|
|
// Caller wants to add. If it already exists, we simply return
|
|
// the existing entry.
|
|
//
|
|
// This CRL_Get increments the count (if it succeeds)
|
|
pcrl = Cache_GetPtr(&g_cacheCRL, atomPath);
|
|
|
|
// Is the item in the cache?
|
|
if (pcrl)
|
|
{
|
|
// Yes; attempt to get fresh contents
|
|
hres = CRL_Replace(atomPath);
|
|
}
|
|
else
|
|
{
|
|
// No; the entry is not in the cache. Add it.
|
|
LPCTSTR pszPath = Atom_GetName(atomPath);
|
|
|
|
ASSERT(pszPath);
|
|
|
|
DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Adding CRL for %s (0x%lx)"),
|
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pszPath, pcbs->hbrf); )
|
|
|
|
// Leave the critical section while we do expensive calculation
|
|
CRL_LeaveCS();
|
|
{
|
|
hres = CreatePathLists(pcbs->hbrf, pcbs->pabortevt,
|
|
atomPath, &lprl, &lpftl);
|
|
}
|
|
CRL_EnterCS();
|
|
|
|
if (FAILED(hres))
|
|
goto Fail;
|
|
else
|
|
{
|
|
LPCTSTR pszBrf;
|
|
|
|
// Allocate using commctrl's Alloc, so the structure will be in
|
|
// shared heap space across processes.
|
|
pcrl = SharedAllocType(CRL);
|
|
if (!pcrl)
|
|
{
|
|
hres = E_OUTOFMEMORY;
|
|
goto Fail;
|
|
}
|
|
|
|
pcrl->atomPath = atomPath;
|
|
|
|
pcrl->hbrf = pcbs->hbrf;
|
|
|
|
pszBrf = Atom_GetName(pcbs->atomBrf);
|
|
pcrl->atomBrf = Atom_Add(pszBrf);
|
|
|
|
pcrl->pabortevt = pcbs->pabortevt;
|
|
pcrl->lpftl = lpftl;
|
|
pcrl->lprl = lprl;
|
|
pcrl->ucUse = 0;
|
|
|
|
pcrl->uFlags = 0; // reset
|
|
SetSubfolderTwinFlag(pcrl);
|
|
if (S_FALSE == hres)
|
|
SetFlag(pcrl->uFlags, CRLF_ORPHAN);
|
|
|
|
if (PathIsDirectory(Atom_GetName(atomPath)))
|
|
SetFlag(pcrl->uFlags, CRLF_ISFOLDER);
|
|
|
|
if (IsFlagSet(pcbs->uFlags, CBSF_LFNDRIVE))
|
|
SetFlag(pcrl->uFlags, CRLF_ISLFNDRIVE);
|
|
|
|
SetPairInfo(pcrl);
|
|
|
|
// This Cache_AddItem does the increment count
|
|
if ( !Cache_AddItem(&g_cacheCRL, atomPath, (LPVOID)pcrl) )
|
|
{
|
|
// Failed
|
|
Atom_Delete(pcrl->atomBrf);
|
|
Atom_Delete(pcrl->atomOutside);
|
|
hres = E_OUTOFMEMORY;
|
|
goto Fail;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
CRL_LeaveCS();
|
|
|
|
return hres;
|
|
|
|
Fail:
|
|
// Cleanup on failure
|
|
//
|
|
if (lprl)
|
|
Sync_DestroyRecList(lprl);
|
|
if (lpftl)
|
|
Sync_DestroyFolderList(lpftl);
|
|
SharedFree(&pcrl);
|
|
CRL_LeaveCS();
|
|
|
|
DEBUG_MSG(TF_ERROR, TEXT("SyncUI CRL_Add failed!"));
|
|
return hres;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Decrement the reference count and the use count to
|
|
the reclist cache entry.
|
|
|
|
If the reference count == 0, the entry is deleted.
|
|
|
|
Returns: --
|
|
Cond: --
|
|
*/
|
|
void PUBLIC CRL_Delete(
|
|
int atomPath)
|
|
{
|
|
CRL * pcrl;
|
|
|
|
CRL_EnterCS();
|
|
{
|
|
// Decrement the use count
|
|
//
|
|
pcrl = Cache_GetPtr(&g_cacheCRL, atomPath);
|
|
if (pcrl)
|
|
{
|
|
DEBUG_CODE( LPCTSTR pszPath = Atom_GetName(atomPath); )
|
|
|
|
if (pcrl->ucUse > 0)
|
|
pcrl->ucUse--;
|
|
|
|
if (IsFlagSet(pcrl->uFlags, CRLF_NUKE))
|
|
{
|
|
if (pcrl->ucUse == 0)
|
|
{
|
|
DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Nuking late CRL %s..."),
|
|
pszPath); )
|
|
|
|
// A nuke was deferred. Now we can really do it.
|
|
//
|
|
Cache_DeleteItem(&g_cacheCRL, atomPath, TRUE, NULL, CRL_Free);
|
|
goto Done;
|
|
}
|
|
#ifdef DEBUG
|
|
else
|
|
{
|
|
TRACE_MSG(TF_CACHE, TEXT("CACHE Deferring nuke CRL %s..."),
|
|
pszPath);
|
|
}
|
|
#endif
|
|
}
|
|
Cache_DeleteItem(&g_cacheCRL, atomPath, FALSE, NULL, CRL_Free); // Decrement for Cache_GetPtr
|
|
|
|
// The real delete...
|
|
Cache_DeleteItem(&g_cacheCRL, atomPath, FALSE, NULL, CRL_Free);
|
|
}
|
|
Done:;
|
|
}
|
|
CRL_LeaveCS();
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Nuke the cache entry if the use count is 0. Otherwise,
|
|
set the nuke bit, and this entry will get nuked on the
|
|
next CRL_Get when the use count is 0.
|
|
|
|
Returns: --
|
|
Cond: --
|
|
*/
|
|
void PUBLIC CRL_Nuke(
|
|
int atomPath)
|
|
{
|
|
CRL * pcrl;
|
|
|
|
CRL_EnterCS();
|
|
{
|
|
// Check the use count
|
|
//
|
|
pcrl = Cache_GetPtr(&g_cacheCRL, atomPath);
|
|
if (pcrl)
|
|
{
|
|
if (pcrl->ucUse > 0)
|
|
{
|
|
DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Marking to nuke CRL for %s (0x%lx)"),
|
|
Atom_GetName(atomPath), pcrl->hbrf); )
|
|
|
|
SetFlag(pcrl->uFlags, CRLF_NUKE);
|
|
Cache_DeleteItem(&g_cacheCRL, atomPath, FALSE, NULL, CRL_Free); // Decrement for Cache_GetPtr
|
|
}
|
|
else
|
|
{
|
|
DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Nuking CRL for %s (0x%lx)"),
|
|
Atom_GetName(atomPath), pcrl->hbrf); )
|
|
|
|
Cache_DeleteItem(&g_cacheCRL, atomPath, TRUE, NULL, CRL_Free);
|
|
}
|
|
}
|
|
}
|
|
CRL_LeaveCS();
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Replace the atomPath in the cache. This consists of
|
|
creating the reclist (and folder twin list possibly)
|
|
and replacing the contents of pcrl.
|
|
|
|
The pcrl pointer remains unchanged.
|
|
|
|
The reference and use-counts remain unchanged.
|
|
|
|
Returns: standard result
|
|
|
|
Cond:
|
|
IMPORTANT: Some portions of code call PathIsDirectory,
|
|
which will fail if atomPath does not exist.
|
|
|
|
*/
|
|
HRESULT PUBLIC CRL_Replace(
|
|
int atomPath)
|
|
{
|
|
HRESULT hres;
|
|
CRL * pcrl;
|
|
|
|
CRL_EnterCS();
|
|
{
|
|
pcrl = Cache_GetPtr(&g_cacheCRL, atomPath);
|
|
|
|
// Does the item exist?
|
|
if (pcrl)
|
|
{
|
|
DEBUG_CODE( LPCTSTR pszPath = Atom_GetName(atomPath); )
|
|
ASSERT(pszPath);
|
|
DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Replacing CRL for %s (0x%lx)"),
|
|
pszPath, pcrl->hbrf); )
|
|
|
|
// Yes; mark it dirty and call CRL_Get on it.
|
|
SetFlag(pcrl->uFlags, CRLF_DIRTY);
|
|
|
|
// Note: pay attention to the difference between Cache_Delete
|
|
// and CRL_Delete. Cache_Delete must match Cache_Add/Get and
|
|
// CRL_Delete must match CRL_Add/Get.
|
|
//
|
|
Cache_DeleteItem(&g_cacheCRL, atomPath, FALSE, NULL, CRL_Free); // Decrement count for Cache_GetPtr
|
|
|
|
hres = CRL_Get(atomPath, &pcrl); // This does the replace
|
|
|
|
CRL_Delete(atomPath); // Decrement count for CRL_Get
|
|
}
|
|
else
|
|
{
|
|
hres = E_FAIL;
|
|
}
|
|
}
|
|
CRL_LeaveCS();
|
|
|
|
return hres;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Get the reclist from the cache. If the cache item exists
|
|
and is marked dirty and the use count is 0, then recreate
|
|
the reclist.
|
|
|
|
If the nuke bit is set, then the entry is nuked and this
|
|
function returns NULL.
|
|
|
|
Returns: standard result
|
|
Ptr to cache entry.
|
|
|
|
Cond: Must call CRL_Delete for every call to CRL_Get
|
|
|
|
IMPORTANT: Some portions of code call PathIsDirectory,
|
|
which will fail if atomPath does not exist.
|
|
|
|
*/
|
|
HRESULT PUBLIC CRL_Get(
|
|
int atomPath,
|
|
PCRL * ppcrl)
|
|
{
|
|
HRESULT hres;
|
|
PCRL pcrl;
|
|
PRECLIST lprl = NULL;
|
|
PFOLDERTWINLIST lpftl = NULL;
|
|
|
|
CRL_EnterCS();
|
|
{
|
|
// Don't need to decrement the reference count in this
|
|
// function -- this is Get!
|
|
//
|
|
pcrl = Cache_GetPtr(&g_cacheCRL, atomPath);
|
|
if (pcrl)
|
|
{
|
|
HBRFCASE hbrf = pcrl->hbrf;
|
|
|
|
// Is this item pending a nuke?
|
|
if (IsFlagSet(pcrl->uFlags, CRLF_NUKE))
|
|
{
|
|
// Yes; return NULL as if it were already nuked.
|
|
DEBUG_CODE( LPCTSTR pszPath = Atom_GetName(atomPath); )
|
|
|
|
DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Attempt to get deferred nuke CRL %s (0x%lx)..."),
|
|
pszPath, hbrf); )
|
|
|
|
// (Decrement counter for Cache_GetPtr to keep count even,
|
|
// since we are returning NULL.)
|
|
Cache_DeleteItem(&g_cacheCRL, atomPath, FALSE, NULL, CRL_Free);
|
|
pcrl = NULL;
|
|
hres = E_FAIL;
|
|
}
|
|
|
|
// Is this item tagged dirty and the use-count is 0?
|
|
else if (IsFlagSet(pcrl->uFlags, CRLF_DIRTY) && pcrl->ucUse == 0)
|
|
{
|
|
// Yes; we are free to re-create the reclist.
|
|
LPCTSTR pszPath = Atom_GetName(atomPath);
|
|
|
|
ASSERT(pszPath);
|
|
|
|
DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Getting clean CRL %s (0x%lx)..."),
|
|
pszPath, hbrf); )
|
|
|
|
// Since we'll be leaving the critical section below,
|
|
// temporarily increase the use count to keep the pcrl
|
|
// from getting nuked from under us.
|
|
pcrl->ucUse++;
|
|
|
|
// Replace the contents of the cache entry
|
|
// Leave the critical section while we do expensive calculation
|
|
CRL_LeaveCS();
|
|
{
|
|
hres = CreatePathLists(hbrf, pcrl->pabortevt, atomPath,
|
|
&lprl, &lpftl);
|
|
}
|
|
CRL_EnterCS();
|
|
|
|
// Decrement use count
|
|
pcrl->ucUse--;
|
|
|
|
if (FAILED(hres))
|
|
{
|
|
DEBUG_CODE( DEBUG_MSG(TF_ERROR, TEXT("SyncUI CRL_Get failed in cleaning dirty entry!")); )
|
|
|
|
// Still return pcrl since it exists
|
|
hres = NOERROR;
|
|
}
|
|
else
|
|
{
|
|
// Put the new lists in the cache entry
|
|
if (pcrl->lprl)
|
|
{
|
|
Sync_DestroyRecList(pcrl->lprl);
|
|
}
|
|
pcrl->lprl = lprl;
|
|
|
|
if (pcrl->lpftl)
|
|
{
|
|
Sync_DestroyFolderList(pcrl->lpftl);
|
|
}
|
|
pcrl->lpftl = lpftl;
|
|
|
|
if (S_FALSE == hres)
|
|
SetFlag(pcrl->uFlags, CRLF_ORPHAN);
|
|
else
|
|
{
|
|
ASSERT(S_OK == hres);
|
|
ClearFlag(pcrl->uFlags, CRLF_ORPHAN);
|
|
}
|
|
|
|
ClearFlag(pcrl->uFlags, CRLF_DIRTY);
|
|
SetSubfolderTwinFlag(pcrl);
|
|
|
|
SetPairInfo(pcrl);
|
|
hres = NOERROR;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#ifdef DEBUG
|
|
LPCTSTR pszPath = Atom_GetName(atomPath);
|
|
|
|
ASSERT(pszPath);
|
|
|
|
if (IsFlagSet(pcrl->uFlags, CRLF_DIRTY))
|
|
{
|
|
TRACE_MSG(TF_CACHE, TEXT("CACHE Getting dirty CRL %s (0x%lx)..."),
|
|
pszPath, hbrf);
|
|
}
|
|
else
|
|
{
|
|
TRACE_MSG(TF_CACHE, TEXT("CACHE Getting CRL %s (0x%lx)..."),
|
|
pszPath, hbrf);
|
|
}
|
|
#endif
|
|
hres = NOERROR;
|
|
}
|
|
}
|
|
else
|
|
hres = E_FAIL;
|
|
|
|
// Now increment the use count
|
|
//
|
|
if (pcrl)
|
|
pcrl->ucUse++;
|
|
|
|
*ppcrl = pcrl;
|
|
|
|
ASSERT((FAILED(hres) && !*ppcrl) ||
|
|
(SUCCEEDED(hres) && *ppcrl));
|
|
}
|
|
CRL_LeaveCS();
|
|
|
|
return hres;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Mark any related CRLs dirty. Which CRLs get marked dirty
|
|
depends on the lEvent.
|
|
|
|
In addition, *pbRefresh is set to TRUE if the window that
|
|
is calling this function should refresh itself.
|
|
|
|
(N.b. in the following rules, we never refresh the immediate
|
|
folder unless explicitly stated, since the shell will do this
|
|
automatically. E.g., if C:\Bar\Foo.txt received NOE_DIRTYITEM,
|
|
the shell will automatically repaint C:\Bar.)
|
|
|
|
Rules:
|
|
|
|
NOE_CREATE Cause: A file is created.
|
|
Dirty? Any CRLs whose atomInside or atomOutside
|
|
are parents or equal to atomPath.
|
|
Refresh? Only in windows of parent folders on either
|
|
side OR
|
|
in immediate window on the briefcase side
|
|
if atomPath was created on the outside.
|
|
|
|
NOE_CREATEFOLDER same as above
|
|
|
|
NOE_DELETE Cause: A file or folder was deleted.
|
|
Dirty? Any CRLs whose atomInside or atomOutside
|
|
are parents or equal to atomPath.
|
|
Delete CRL if atomPath matches atomInside
|
|
Refresh? Only in windows of parent folders on either
|
|
side OR
|
|
in immediate window on the briefcase side
|
|
if atomPath was deleted on the outside.
|
|
|
|
NOE_DELETEFOLDER same as above
|
|
|
|
NOE_RENAME Cause: A file or folder was renamed or moved.
|
|
Dirty? Any CRLs whose atomInside or atomOutside
|
|
are parents or equal to atomPath.
|
|
Rename CRL (and related database entry) if
|
|
atomPath is inside briefcase
|
|
Refresh? Only in windows of parent folders on either
|
|
side OR
|
|
in immediate window on the briefcase side
|
|
if atomPath is renamed on the outside.
|
|
|
|
NOE_RENAMEFOLDER same as above
|
|
|
|
NOE_DIRTY Cause: Varies. Typically something needs refreshed.
|
|
Dirty? Any CRLs whose atomInside or atomOutside
|
|
are parents or equal to atomPath.
|
|
If atomPath is folder, any CRLs which are
|
|
children of atomPath.
|
|
Refresh? Only in windows of parent folders on either
|
|
side OR
|
|
in immediate window on the briefcase side
|
|
if atomPath is updated on the outside.
|
|
|
|
Returns: FALSE if nothing was marked
|
|
TRUE if something was marked
|
|
Cond: --
|
|
*/
|
|
BOOL PUBLIC CRL_Dirty(
|
|
int atomPath,
|
|
int atomCabFolder, // path of open cabinet window
|
|
LONG lEvent,
|
|
LPBOOL pbRefresh) // return TRUE to refresh cabinet window
|
|
{
|
|
BOOL bRet = FALSE;
|
|
CRL * pcrl;
|
|
int atom;
|
|
int atomParent;
|
|
|
|
ASSERT(pbRefresh);
|
|
|
|
*pbRefresh = FALSE;
|
|
|
|
CRL_EnterCS();
|
|
{
|
|
BOOL bIsFolder;
|
|
|
|
// Get the atomParent of the atomPath
|
|
TCHAR szParent[MAXPATHLEN];
|
|
|
|
lstrcpy(szParent, Atom_GetName(atomPath));
|
|
PathRemoveFileSpec(szParent);
|
|
if (0 == *szParent) // skip blank parent paths
|
|
goto Done;
|
|
atomParent = Atom_Add(szParent);
|
|
if (ATOM_ERR == atomParent)
|
|
goto Done;
|
|
|
|
// Is the path that is being updated a folder?
|
|
pcrl = Cache_GetPtr(&g_cacheCRL, atomPath);
|
|
if (pcrl)
|
|
{
|
|
bIsFolder = CRL_IsFolder(pcrl);
|
|
Cache_DeleteItem(&g_cacheCRL, atomPath, FALSE, NULL, CRL_Free); // Decrement count
|
|
}
|
|
else
|
|
{
|
|
bIsFolder = FALSE;
|
|
}
|
|
|
|
CRL_Iterate(atom)
|
|
{
|
|
pcrl = Cache_GetPtr(&g_cacheCRL, atom);
|
|
ASSERT(pcrl);
|
|
if (pcrl)
|
|
{
|
|
// Is CRL a parent or equal of atomPath?
|
|
if (Atom_IsParentOf(atom, atomPath))
|
|
{
|
|
// Yes; mark it
|
|
DEBUG_CODE( LPCTSTR pszDbg = Atom_GetName(atom); )
|
|
DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Tagging CRL for %s (0x%lx)"),
|
|
pszDbg, pcrl->hbrf); )
|
|
|
|
SetFlag(pcrl->uFlags, CRLF_DIRTY);
|
|
bRet = TRUE;
|
|
|
|
// Refresh this window?
|
|
// (Only if the cabinet folder is > than an immediate
|
|
// parent folder.)
|
|
*pbRefresh = Atom_IsParentOf(atomCabFolder, atom) &&
|
|
atomCabFolder != atomParent;
|
|
|
|
switch (lEvent)
|
|
{
|
|
case NOE_DELETE:
|
|
case NOE_DELETEFOLDER:
|
|
// Is this CRL the item being deleted?
|
|
if (pcrl->atomPath == atomPath)
|
|
{
|
|
// Yes; delete the CRL
|
|
CRL_Delete(atom);
|
|
}
|
|
break;
|
|
|
|
case NOE_RENAME:
|
|
case NOE_RENAMEFOLDER:
|
|
// Is this CRL being renamed (inside briefcase only)?
|
|
if (pcrl->atomPath == atomPath)
|
|
{
|
|
// FEATURE: Yes; mark it for renaming
|
|
}
|
|
break;
|
|
|
|
case NOE_DIRTY:
|
|
case NOE_DIRTYFOLDER:
|
|
// Is the atomPath a folder and this CRL a child?
|
|
if (bIsFolder && Atom_IsChildOf(pcrl->atomPath, atomPath))
|
|
{
|
|
// Yes; mark it
|
|
DEBUG_CODE( LPCTSTR pszDbg = Atom_GetName(atom); )
|
|
DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Tagging CRL for %s (0x%lx)"),
|
|
pszDbg, pcrl->hbrf); )
|
|
|
|
SetFlag(pcrl->uFlags, CRLF_DIRTY);
|
|
bRet = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Is CRL's atomOutside a parent or equal of atomPath?
|
|
if (Atom_IsParentOf(pcrl->atomOutside, atomPath))
|
|
{
|
|
// Yes; mark it
|
|
DEBUG_CODE( LPCTSTR pszDbg = Atom_GetName(atom); )
|
|
DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Tagging CRL for %s (0x%lx)"),
|
|
pszDbg, pcrl->hbrf); )
|
|
|
|
SetFlag(pcrl->uFlags, CRLF_DIRTY);
|
|
bRet = TRUE;
|
|
|
|
// Refresh this window?
|
|
*pbRefresh = Atom_IsParentOf(atomCabFolder, atom);
|
|
}
|
|
|
|
Cache_DeleteItem(&g_cacheCRL, atom, FALSE, NULL, CRL_Free); // Decrement count
|
|
}
|
|
}
|
|
Done:;
|
|
}
|
|
CRL_LeaveCS();
|
|
return bRet;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Mark the entire cache dirty
|
|
Returns: --
|
|
Cond: --
|
|
*/
|
|
void PUBLIC CRL_DirtyAll(
|
|
int atomBrf)
|
|
{
|
|
CRL_EnterCS();
|
|
{
|
|
CRL * pcrl;
|
|
int atom;
|
|
|
|
CRL_Iterate(atom)
|
|
{
|
|
pcrl = Cache_GetPtr(&g_cacheCRL, atom);
|
|
ASSERT(pcrl);
|
|
if (pcrl && pcrl->atomBrf == atomBrf)
|
|
{
|
|
DEBUG_CODE( LPCTSTR pszDbg = Atom_GetName(atom); )
|
|
|
|
DEBUG_CODE( TRACE_MSG(TF_CACHE, TEXT("CACHE Tagging CRL for %s (0x%lx)"), pszDbg,
|
|
pcrl->hbrf); )
|
|
|
|
SetFlag(pcrl->uFlags, CRLF_DIRTY);
|
|
Cache_DeleteItem(&g_cacheCRL, atom, FALSE, NULL, CRL_Free); // Decrement count
|
|
}
|
|
}
|
|
}
|
|
CRL_LeaveCS();
|
|
}
|
|
|
|
|