4 * @brief Implementation file for Directory traversal functions.
11 #include <Poco/DirectoryIterator.h>
12 #include <Poco/Timestamp.h>
16 #include "UnicodeString.h"
20 #include "Win_VersionHelper.h"
26 using Poco::DirectoryIterator;
27 using Poco::Timestamp;
29 static void LoadFiles(const String& sDir, DirItemArray * dirs, DirItemArray * files);
30 static void Sort(DirItemArray * dirs, bool casesensitive);
33 * @brief Load arrays with all directories & files in specified dir
35 void LoadAndSortFiles(const String& sDir, DirItemArray * dirs, DirItemArray * files, bool casesensitive)
37 LoadFiles(sDir, dirs, files);
38 Sort(dirs, casesensitive);
39 Sort(files, casesensitive);
43 * @brief Find file and sub-folder names from given folder.
44 * This function saves all file and sub-folder names in given folder to arrays.
45 * We use 64-bit version of stat() to get times since find doesn't return
46 * valid times for very old files (around year 1970). Even stat() seems to
47 * give negative time values but we can live with that. Those around 1970
48 * times can happen when file is created so that it doesn't get valid
49 * creation or modification dates.
50 * @param [in] sDir Base folder for files and subfolders.
51 * @param [in, out] dirs Array where subfolder names are stored.
52 * @param [in, out] files Array where file names are stored.
54 static void LoadFiles(const String& sDir, DirItemArray * dirs, DirItemArray * files)
56 boost::flyweight<String> dir(sDir);
58 DirectoryIterator it(ucr::toUTF8(sDir));
59 DirectoryIterator end;
61 for (; it != end; ++it)
63 bool bIsDirectory = it->isDirectory();
68 ent.ctime = it->created();
71 ent.mtime = it->getLastModified();
74 ent.size = it->getSize();
76 ent.filename = ucr::toTString(it.name());
77 ent.flags.attributes = GetFileAttributes(ucr::toTString(it.name()).c_str());
78 (bIsDirectory ? dirs : files)->push_back(ent);
82 String sPattern = paths::ConcatPath(sDir, _T("*.*"));
86 if (IsWin7_OrGreater()) // (also 'Windows Server 2008 R2' and greater) for FindExInfoBasic and FIND_FIRST_EX_LARGE_FETCH
87 h = FindFirstFileEx(TFile(sPattern).wpath().c_str(), FindExInfoBasic, &ff, FindExSearchNameMatch, nullptr, FIND_FIRST_EX_LARGE_FETCH);
89 h = FindFirstFile(TFile(sPattern).wpath().c_str(), &ff);
90 if (h != INVALID_HANDLE_VALUE)
94 bool bIsDirectory = (ff.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) > 0;
95 if (bIsDirectory && _tcsstr(_T(".."), ff.cFileName))
100 // Save filetimes as seconds since January 1, 1970
101 // Note that times can be < 0 if they are around that 1970..
102 // Anyway that is not sensible case for normal files so we can
103 // just use zero for their time.
104 ent.ctime = Timestamp::fromFileTimeNP(ff.ftCreationTime.dwLowDateTime, ff.ftCreationTime.dwHighDateTime);
107 ent.mtime = Timestamp::fromFileTimeNP(ff.ftLastWriteTime.dwLowDateTime, ff.ftLastWriteTime.dwHighDateTime);
111 if (ff.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
112 ent.size = DirItem::FILE_SIZE_NONE; // No size for directories
115 ent.size = ((int64_t)ff.nFileSizeHigh << 32) + ff.nFileSizeLow;
119 ent.filename = ff.cFileName;
120 ent.flags.attributes = ff.dwFileAttributes;
122 (bIsDirectory ? dirs : files)->push_back(ent);
123 } while (FindNextFile(h, &ff));
130 static inline int collate(const String &str1, const String &str2)
132 return _tcscoll(str1.c_str(), str2.c_str());
135 static inline int collate_ignore_case(const String &str1, const String &str2)
137 return _tcsicoll(str1.c_str(), str2.c_str());
141 template<int (*compfunc)(const TCHAR *, const TCHAR *)>
142 struct StringComparer
144 bool operator()(const DirItem &elem1, const DirItem &elem2)
146 return compfunc(elem1.filename.get().c_str(), elem2.filename.get().c_str()) < 0;
151 * @brief sort specified array
153 static void Sort(DirItemArray * dirs, bool casesensitive)
156 std::sort(dirs->begin(), dirs->end(), StringComparer<_tcscoll>());
158 std::sort(dirs->begin(), dirs->end(), StringComparer<_tcsicoll>());
162 * @brief Compare (NLS aware) two strings, either case-sensitive or
163 * case-insensitive as caller specifies
165 int collstr(const String & s1, const String & s2, bool casesensitive)
168 return collate(s1, s2);
170 return collate_ignore_case(s1, s2);