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Add a uniqueID field to the FileStatus structure for Paths. This will map
to the inode number on Unix and something far less unique on Windows. The windows case needs to be improved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35461 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -40,17 +40,19 @@ namespace sys {
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uint32_t mode; ///< Mode of the file, if applicable
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uint32_t user; ///< User ID of owner, if applicable
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uint32_t group; ///< Group ID of owner, if applicable
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uint64_t uniqueID; ///< A number to uniquely ID this file
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bool isDir : 1; ///< True if this is a directory.
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bool isFile : 1; ///< True if this is a file.
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FileStatus() : fileSize(0), modTime(0,0), mode(0777), user(999),
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group(999), isDir(false) { }
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group(999), uniqueID(0), isDir(false), isFile(false) { }
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TimeValue getTimestamp() const { return modTime; }
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uint64_t getSize() const { return fileSize; }
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uint32_t getMode() const { return mode; }
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uint32_t getUser() const { return user; }
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uint32_t getGroup() const { return group; }
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uint32_t getUniqueID() const { return uniqueID; }
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};
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/// This class provides an abstraction for the path to a file or directory
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@ -375,6 +375,7 @@ Path::getFileStatus(FileStatus &info, bool update, std::string *ErrStr) const {
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status->mode = buf.st_mode;
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status->user = buf.st_uid;
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status->group = buf.st_gid;
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status->uniqueID = uint64_t(buf.st_ino);
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status->isDir = S_ISDIR(buf.st_mode);
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status->isFile = S_ISREG(buf.st_mode);
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}
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@ -319,6 +319,13 @@ Path::getFileStatus(FileStatus &info, bool update, std::string *ErrStr) const {
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status->user = 9999; // Not applicable to Windows, so...
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status->group = 9999; // Not applicable to Windows, so...
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// FIXME: this is only unique if the file is accessed by the same file path.
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// How do we do this for C:\dir\file and ..\dir\file ? Unix has inode
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// numbers, but the concept doesn't exist in Windows.
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status->uniqueID = 0;
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for (unsigned i = 0; i < path.length(); ++i)
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status->uniqueID += path[i];
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__int64 ft = *reinterpret_cast<__int64*>(&fi.ftLastWriteTime);
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status->modTime.fromWin32Time(ft);
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