void DFGImpl::FileSkipped(const FileEntry &SkippedFile,
const Token &FilenameTok,
SrcMgr::CharacteristicKind FileType) {
StringRef Filename = SkippedFile.getName();
if (!FileMatchesDepCriteria(Filename.data(), FileType))
return;
AddFilename(llvm::sys::path::remove_leading_dotslash(Filename));
}
const FileEntry *
FileManager::getVirtualFile(llvm::StringRef Filename, off_t Size,
time_t ModificationTime) {
++NumFileLookups;
// See if there is already an entry in the map.
llvm::StringMapEntry<FileEntry *> &NamedFileEnt =
FileEntries.GetOrCreateValue(Filename);
// See if there is already an entry in the map.
if (NamedFileEnt.getValue() && NamedFileEnt.getValue() != NON_EXISTENT_FILE)
return NamedFileEnt.getValue();
++NumFileCacheMisses;
// By default, initialize it to invalid.
NamedFileEnt.setValue(NON_EXISTENT_FILE);
// We allow the directory to not exist. If it does exist we store it.
FileEntry *UFE = 0;
const DirectoryEntry *DirInfo = getDirectoryFromFile(*this, Filename);
if (DirInfo) {
// Check to see if the file exists. If so, drop the virtual file
int FileDescriptor = -1;
struct stat StatBuf;
const char *InterndFileName = NamedFileEnt.getKeyData();
if (getStatValue(InterndFileName, StatBuf, &FileDescriptor) == 0) {
// If the stat process opened the file, close it to avoid a FD leak.
if (FileDescriptor != -1)
close(FileDescriptor);
StatBuf.st_size = Size;
StatBuf.st_mtime = ModificationTime;
UFE = &UniqueFiles.getFile(InterndFileName, StatBuf);
NamedFileEnt.setValue(UFE);
// If we had already opened this file, close it now so we don't
// leak the descriptor. We're not going to use the file
// descriptor anyway, since this is a virtual file.
if (UFE->FD != -1) {
close(UFE->FD);
UFE->FD = -1;
}
// If we already have an entry with this inode, return it.
if (UFE->getName())
return UFE;
}
}
if (!UFE) {
UFE = new FileEntry();
VirtualFileEntries.push_back(UFE);
NamedFileEnt.setValue(UFE);
}
// Get the null-terminated file name as stored as the key of the
// FileEntries map.
const char *InterndFileName = NamedFileEnt.getKeyData();
UFE->Name = InterndFileName;
UFE->Size = Size;
UFE->ModTime = ModificationTime;
UFE->Dir = DirInfo;
UFE->UID = NextFileUID++;
UFE->FD = -1;
return UFE;
}
const FileEntry *
FileManager::getVirtualFile(StringRef Filename, off_t Size,
time_t ModificationTime) {
++NumFileLookups;
// See if there is already an entry in the map.
llvm::StringMapEntry<FileEntry *> &NamedFileEnt =
SeenFileEntries.GetOrCreateValue(Filename);
// See if there is already an entry in the map.
if (NamedFileEnt.getValue() && NamedFileEnt.getValue() != NON_EXISTENT_FILE)
return NamedFileEnt.getValue();
++NumFileCacheMisses;
// By default, initialize it to invalid.
NamedFileEnt.setValue(NON_EXISTENT_FILE);
addAncestorsAsVirtualDirs(Filename);
FileEntry *UFE = 0;
// Now that all ancestors of Filename are in the cache, the
// following call is guaranteed to find the DirectoryEntry from the
// cache.
const DirectoryEntry *DirInfo = getDirectoryFromFile(*this, Filename,
/*CacheFailure=*/true);
assert(DirInfo &&
"The directory of a virtual file should already be in the cache.");
// Check to see if the file exists. If so, drop the virtual file
int FileDescriptor = -1;
struct stat StatBuf;
const char *InterndFileName = NamedFileEnt.getKeyData();
if (getStatValue(InterndFileName, StatBuf, &FileDescriptor) == 0) {
// If the stat process opened the file, close it to avoid a FD leak.
if (FileDescriptor != -1)
close(FileDescriptor);
StatBuf.st_size = Size;
StatBuf.st_mtime = ModificationTime;
UFE = &UniqueRealFiles.getFile(InterndFileName, StatBuf);
NamedFileEnt.setValue(UFE);
// If we had already opened this file, close it now so we don't
// leak the descriptor. We're not going to use the file
// descriptor anyway, since this is a virtual file.
if (UFE->FD != -1) {
close(UFE->FD);
UFE->FD = -1;
}
// If we already have an entry with this inode, return it.
if (UFE->getName())
return UFE;
}
if (!UFE) {
UFE = new FileEntry();
VirtualFileEntries.push_back(UFE);
NamedFileEnt.setValue(UFE);
}
UFE->Name = InterndFileName;
UFE->Size = Size;
UFE->ModTime = ModificationTime;
UFE->Dir = DirInfo;
UFE->UID = NextFileUID++;
UFE->FD = -1;
return UFE;
}
static StringRef getFileName(const FileEntry &FE) {
StringRef Filename = FE.tryGetRealPathName();
if (Filename.empty())
Filename = FE.getName();
return Filename;
}