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cleanups, add some code for instrumenting stat 

llvm-svn: 38728
This commit is contained in:
Chris Lattner 2006-07-19 03:40:07 +00:00
parent c5cd2d6556
commit 81500bc3ae
1 changed files with 7 additions and 3 deletions
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10
clang/Basic/FileManager.cpp
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@ -102,14 +102,18 @@ const FileEntry *FileManager::getFile(const std::string &Filename) {
// Nope, there isn't. Check to see if the file exists. // Nope, there isn't. Check to see if the file exists.
struct stat StatBuf; struct stat StatBuf;
//std::cerr << "STATING: " << Filename;
if (stat(Filename.c_str(), &StatBuf) || // Error stat'ing. if (stat(Filename.c_str(), &StatBuf) || // Error stat'ing.
S_ISDIR(StatBuf.st_mode)) // A directory? S_ISDIR(StatBuf.st_mode)) { // A directory?
// If this file doesn't exist, we leave a null in FileEntries for this path.
//std::cerr << ": Not existing\n";
return 0; return 0;
}
//std::cerr << ": exists\n";
// It exists. See if we have already opened a directory with the same inode. // It exists. See if we have already opened a directory with the same inode.
// This occurs when one dir is symlinked to another, for example. // This occurs when one dir is symlinked to another, for example.
FileEntry *&UFE = FileEntry *&UFE = UniqueFiles[std::make_pair(StatBuf.st_dev, StatBuf.st_ino)];
UniqueFiles[std::make_pair(StatBuf.st_dev, StatBuf.st_ino)];
if (UFE) // Already have an entry with this inode, return it. if (UFE) // Already have an entry with this inode, return it.
return Ent = UFE; return Ent = UFE;