diff options
Diffstat (limited to 'lib/Basic/FileManager.cpp')
-rw-r--r-- | lib/Basic/FileManager.cpp | 35 |
1 files changed, 11 insertions, 24 deletions
diff --git a/lib/Basic/FileManager.cpp b/lib/Basic/FileManager.cpp index f5a2d4894c13e..01ec1d69cde53 100644 --- a/lib/Basic/FileManager.cpp +++ b/lib/Basic/FileManager.cpp @@ -189,21 +189,15 @@ const FileEntry *FileManager::getFile(StringRef Filename, bool openFile, *SeenFileEntries.insert(std::make_pair(Filename, nullptr)).first; // See if there is already an entry in the map. - if (NamedFileEnt.second) { - if (NamedFileEnt.second == NON_EXISTENT_FILE) - return nullptr; - // Entry exists: return it *unless* it wasn't opened and open is requested. - if (!(NamedFileEnt.second->DeferredOpen && openFile)) - return NamedFileEnt.second; - // We previously stat()ed the file, but didn't open it: do that below. - // FIXME: the below does other redundant work too (stats the dir and file). - } else { - // By default, initialize it to invalid. - NamedFileEnt.second = NON_EXISTENT_FILE; - } + if (NamedFileEnt.second) + return NamedFileEnt.second == NON_EXISTENT_FILE ? nullptr + : NamedFileEnt.second; ++NumFileCacheMisses; + // By default, initialize it to invalid. + NamedFileEnt.second = NON_EXISTENT_FILE; + // Get the null-terminated file name as stored as the key of the // SeenFileEntries map. StringRef InterndFileName = NamedFileEnt.first(); @@ -241,7 +235,6 @@ const FileEntry *FileManager::getFile(StringRef Filename, bool openFile, // It exists. See if we have already opened a file with the same inode. // This occurs when one dir is symlinked to another, for example. FileEntry &UFE = UniqueRealFiles[Data.UniqueID]; - UFE.DeferredOpen = !openFile; NamedFileEnt.second = &UFE; @@ -258,15 +251,6 @@ const FileEntry *FileManager::getFile(StringRef Filename, bool openFile, InterndFileName = NamedFileEnt.first().data(); } - // If we opened the file for the first time, record the resulting info. - // Do this even if the cache entry was valid, maybe we didn't previously open. - if (F && !UFE.File) { - if (auto PathName = F->getName()) - fillRealPathName(&UFE, *PathName); - UFE.File = std::move(F); - assert(!UFE.DeferredOpen && "we just opened it!"); - } - if (UFE.isValid()) { // Already have an entry with this inode, return it. // FIXME: this hack ensures that if we look up a file by a virtual path in @@ -297,9 +281,13 @@ const FileEntry *FileManager::getFile(StringRef Filename, bool openFile, UFE.UniqueID = Data.UniqueID; UFE.IsNamedPipe = Data.IsNamedPipe; UFE.InPCH = Data.InPCH; + UFE.File = std::move(F); UFE.IsValid = true; - // Note File and DeferredOpen were initialized above. + if (UFE.File) { + if (auto PathName = UFE.File->getName()) + fillRealPathName(&UFE, *PathName); + } return &UFE; } @@ -371,7 +359,6 @@ FileManager::getVirtualFile(StringRef Filename, off_t Size, UFE->UID = NextFileUID++; UFE->IsValid = true; UFE->File.reset(); - UFE->DeferredOpen = false; return UFE; } |