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Add a uniqueID field to the FileStatus structure for Paths. This will map

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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
This commit is contained in:
Reid Spencer 2007-03-29 17:00:31 +00:00
parent a5cb38980b
commit 4031befb62
3 changed files with 11 additions and 1 deletions
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4
include/llvm/System/Path.h
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@ -40,17 +40,19 @@ namespace sys {
uint32_t mode; ///< Mode of the file, if applicable
uint32_t user; ///< User ID of owner, if applicable
uint32_t group; ///< Group ID of owner, if applicable
uint64_t uniqueID; ///< A number to uniquely ID this file
bool isDir : 1; ///< True if this is a directory.
bool isFile : 1; ///< True if this is a file.
FileStatus() : fileSize(0), modTime(0,0), mode(0777), user(999),
group(999), isDir(false) { }
group(999), uniqueID(0), isDir(false), isFile(false) { }
TimeValue getTimestamp() const { return modTime; }
uint64_t getSize() const { return fileSize; }
uint32_t getMode() const { return mode; }
uint32_t getUser() const { return user; }
uint32_t getGroup() const { return group; }
uint32_t getUniqueID() const { return uniqueID; }
};
/// This class provides an abstraction for the path to a file or directory

1
lib/System/Unix/Path.inc
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@ -375,6 +375,7 @@ Path::getFileStatus(FileStatus &info, bool update, std::string *ErrStr) const {
status->mode = buf.st_mode;
status->user = buf.st_uid;
status->group = buf.st_gid;
status->uniqueID = uint64_t(buf.st_ino);
status->isDir = S_ISDIR(buf.st_mode);
status->isFile = S_ISREG(buf.st_mode);
}

7
lib/System/Win32/Path.inc
View File

@ -319,6 +319,13 @@ Path::getFileStatus(FileStatus &info, bool update, std::string *ErrStr) const {
status->user = 9999; // Not applicable to Windows, so...
status->group = 9999; // Not applicable to Windows, so...
// FIXME: this is only unique if the file is accessed by the same file path.
// How do we do this for C:\dir\file and ..\dir\file ? Unix has inode
// numbers, but the concept doesn't exist in Windows.
status->uniqueID = 0;
for (unsigned i = 0; i < path.length(); ++i)
status->uniqueID += path[i];
__int64 ft = *reinterpret_cast<__int64*>(&fi.ftLastWriteTime);
status->modTime.fromWin32Time(ft);