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Use stat's dev/inode to compare paths instead of comparing the

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strings. Defer building a folder's children SHITEMIDS until explicitly
asked for.
This commit is contained in:
Michael Jung 2005-06-20 11:42:23 +00:00 committed by Alexandre Julliard
parent db9396f68b
commit 74afc7f12e
1 changed files with 38 additions and 32 deletions
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70
dlls/shell32/shfldr_unixfs.c
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@ -72,7 +72,10 @@ const GUID CLSID_UnixDosFolder = {0x9d20aae8, 0x0625, 0x44b0, {0x9c, 0xa7, 0x71,
(sizeof(USHORT)+sizeof(PIDLTYPE)+sizeof(FileStruct)+(n)+sizeof(char)+sizeof(StatStruct))
#define NAME_LEN_FROM_LPSHITEMID(s) \
(((LPSHITEMID)s)->cb-sizeof(USHORT)-sizeof(PIDLTYPE)-sizeof(FileStruct)-sizeof(char)-sizeof(StatStruct))
#define LPSTATSTRUCT_FROM_LPSHITEMID(s) ((StatStruct*)(((LPBYTE)s)+((LPSHITEMID)s)->cb-sizeof(StatStruct)))
#define LPSTATSTRUCT_FROM_LPSHITEMID(s) \
(((s) && (((LPSHITEMID)s)->cb > SHITEMID_LEN_FROM_NAME_LEN(0))) ? \
((StatStruct*)(((LPBYTE)s)+((LPSHITEMID)s)->cb-sizeof(StatStruct))) : \
(NULL))
#define PATHMODE_UNIX 0
#define PATHMODE_DOS 1
@ -256,6 +259,7 @@ static BOOL UNIXFS_get_unix_path(LPCWSTR pszDosPath, char *pszCanonicalPath)
*
* PARAMS
* pszUnixPath [I] An absolute path. The SHITEMID will be build for the last component.
* bParentIsFS [I] Set, if the parent of the last path component is within the wine filesystem.
* pIDL [O] SHITEMID will be constructed here.
*
* RETURNS
@ -267,14 +271,14 @@ static BOOL UNIXFS_get_unix_path(LPCWSTR pszDosPath, char *pszCanonicalPath)
* If what you need is a PIDLLIST with a single SHITEMID, don't forget to append
* a 0 USHORT value.
*/
static char* UNIXFS_build_shitemid(char *pszUnixPath, void *pIDL) {
static char* UNIXFS_build_shitemid(char *pszUnixPath, BOOL bParentIsFS, void *pIDL) {
LARGE_INTEGER time;
FILETIME fileTime;
LPPIDLDATA pIDLData;
struct stat fileStat;
StatStruct *pStatStruct;
char szDevicePath[FILENAME_MAX], *pszComponent;
int cComponentLen, cUnixLen = strlen(pszUnixPath);
int cComponentLen;
DWORD dwDrivemap = GetLogicalDrives();
WCHAR wszDosDevice[4] = { 'A', ':', '\\', 0 };
@ -294,29 +298,21 @@ static char* UNIXFS_build_shitemid(char *pszUnixPath, void *pIDL) {
pStatStruct->st_mode = fileStat.st_mode;
pStatStruct->st_uid = fileStat.st_uid;
pStatStruct->st_gid = fileStat.st_gid;
pStatStruct->sfAttr = S_ISDIR(fileStat.st_mode) ? (SFGAO_FOLDER|SFGAO_HASSUBFOLDER) : 0;
pStatStruct->sfAttr = S_ISDIR(fileStat.st_mode) ? (SFGAO_FOLDER|SFGAO_HASSUBFOLDER|SFGAO_FILESYSANCESTOR) : 0;
if (bParentIsFS) pStatStruct->sfAttr |= SFGAO_FILESYSTEM;
/* Determine the correct FILESYSANCESTOR and FILESYSTEM flags.
* FIXME: This needs caching of the canonicalized unix paths to speed it up. */
while (wszDosDevice[0] <= 'Z') {
/* Determine if the FILESYSTEM flag should be set. */
while (!(pStatStruct->sfAttr & SFGAO_FILESYSTEM) && wszDosDevice[0] <= 'Z') {
if (dwDrivemap & 0x1) {
if (UNIXFS_get_unix_path(wszDosDevice, szDevicePath)) {
int cDeviceLen = strlen(szDevicePath);
if (cUnixLen < cDeviceLen) {
/* If the unix path is a prefix of any device path,
* then it's an filesystem ancestor. */
if (S_ISDIR(fileStat.st_mode) &&
!strncmp(pszUnixPath, szDevicePath, cUnixLen))
{
pStatStruct->sfAttr |= SFGAO_FILESYSANCESTOR;
}
} else {
/* If any device path is a prefix of the unix path,
* then the unix path is within the filesystem. */
if (!strncmp(pszUnixPath, szDevicePath, cDeviceLen))
pStatStruct->sfAttr |= SFGAO_FILESYSTEM;
}
struct stat deviceStat;
if (stat(szDevicePath, &deviceStat)) continue;
if ((deviceStat.st_dev == fileStat.st_dev) &&
(deviceStat.st_ino == fileStat.st_ino))
{
pStatStruct->sfAttr |= SFGAO_FILESYSTEM;
break;
}
}
}
dwDrivemap >>= 1;
@ -333,9 +329,7 @@ static char* UNIXFS_build_shitemid(char *pszUnixPath, void *pIDL) {
FileTimeToDosDateTime(&fileTime, &pIDLData->u.file.uFileDate, &pIDLData->u.file.uFileTime);
pIDLData->u.file.uFileAttribs = 0;
if (S_ISDIR(fileStat.st_mode)) pIDLData->u.file.uFileAttribs |= FILE_ATTRIBUTE_DIRECTORY;
if (pszComponent[0] == '.' && !(pStatStruct->sfAttr & SFGAO_FILESYSANCESTOR))
/* Don't hide fs ancestors (e.g. the .wine in /home/fubar/.wine/drive_c) */
pIDLData->u.file.uFileAttribs |= FILE_ATTRIBUTE_HIDDEN;
if (pszComponent[0] == '.') pIDLData->u.file.uFileAttribs |= FILE_ATTRIBUTE_HIDDEN;
memcpy(pIDLData->u.file.szNames, pszComponent, cComponentLen);
return pszComponent + cComponentLen;
@ -360,6 +354,7 @@ static BOOL UNIXFS_path_to_pidl(UnixFolder *pUnixFolder, const WCHAR *path, LPIT
LPITEMIDLIST pidl;
int cSubDirs, cPidlLen, cPathLen;
char *pSlash, szCompletePath[FILENAME_MAX], *pNextPathElement;
BOOL bParentIsFS = FALSE;
TRACE("pUnixFolder=%p, path=%s, ppidl=%p\n", pUnixFolder, debugstr_w(path), ppidl);
@ -425,13 +420,15 @@ static BOOL UNIXFS_path_to_pidl(UnixFolder *pUnixFolder, const WCHAR *path, LPIT
while (*pNextPathElement) {
pSlash = strchr(pNextPathElement, '/');
if (pSlash) *pSlash = '\0';
pNextPathElement = UNIXFS_build_shitemid(szCompletePath, pidl);
pNextPathElement = UNIXFS_build_shitemid(szCompletePath, bParentIsFS, pidl);
if (pSlash) *pSlash = '/';
if (!pNextPathElement) {
SHFree(pidl);
return FALSE;
}
if (!bParentIsFS && (LPSTATSTRUCT_FROM_LPSHITEMID(pidl)->sfAttr & SFGAO_FILESYSTEM))
bParentIsFS = TRUE;
pidl = ILGetNext(pidl);
}
pidl->mkid.cb = 0; /* Terminate the ITEMIDLIST */
@ -548,11 +545,18 @@ static BOOL UNIXFS_build_subfolder_pidls(UnixFolder *pUnixFolder)
DWORD cDirEntries, i;
USHORT sLen;
char *pszFQPath;
BOOL bParentIsFS = FALSE;
TRACE("(pUnixFolder=%p)\n", pUnixFolder);
pUnixFolder->m_apidlSubDirs = NULL;
pUnixFolder->m_cSubDirs = 0;
if (pUnixFolder->m_pidlLocation) {
StatStruct *statStruct =
LPSTATSTRUCT_FROM_LPSHITEMID(ILFindLastID(pUnixFolder->m_pidlLocation));
if (statStruct) bParentIsFS = statStruct->sfAttr & SFGAO_FILESYSTEM;
}
dir = opendir(pUnixFolder->m_pszPath);
if (!dir) {
@ -602,7 +606,7 @@ static BOOL UNIXFS_build_subfolder_pidls(UnixFolder *pUnixFolder)
WARN("SHAlloc failed!\n");
return FALSE;
}
if (!UNIXFS_build_shitemid(pszFQPath, pid)) {
if (!UNIXFS_build_shitemid(pszFQPath, bParentIsFS, pid)) {
SHFree(pid);
continue;
}
@ -727,6 +731,9 @@ static HRESULT WINAPI UnixFolder_IShellFolder2_EnumObjects(IShellFolder2* iface,
TRACE("(iface=%p, hwndOwner=%p, grfFlags=%08lx, ppEnumIDList=%p)\n",
iface, hwndOwner, grfFlags, ppEnumIDList);
if (This->m_cSubDirs == -1)
UNIXFS_build_subfolder_pidls(This);
newIterator = UnixSubFolderIterator_Construct(This, grfFlags);
hr = IUnknown_QueryInterface(newIterator, &IID_IEnumIDList, (void**)ppEnumIDList);
IUnknown_Release(newIterator);
@ -1126,8 +1133,7 @@ static HRESULT WINAPI UnixFolder_IPersistFolder2_Initialize(IPersistFolder2* ifa
if (!UNIXFS_pidl_to_path(pidl, This))
return E_FAIL;
UNIXFS_build_subfolder_pidls(This);
return S_OK;
}
@ -1180,7 +1186,7 @@ static HRESULT CreateUnixFolder(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppv, D
pUnixFolder->m_cRef = 0;
pUnixFolder->m_pszPath = NULL;
pUnixFolder->m_apidlSubDirs = NULL;
pUnixFolder->m_cSubDirs = 0;
pUnixFolder->m_cSubDirs = -1;
pUnixFolder->m_dwPathMode = dwPathMode;
UnixFolder_IShellFolder2_AddRef(STATIC_CAST(IShellFolder2, pUnixFolder));