llvm::vfs Namespace Reference

Namespaces
namespace	detail

Classes
class	directory_entry
	A member of a directory, yielded by a directory_iterator. More...
class	directory_iterator
	An input iterator over the entries in a virtual path, similar to llvm::sys::fs::directory_iterator. More...
class	File
	Represents an open file. More...
class	FileSystem
	The virtual file system interface. More...
class	InMemoryFileSystem
	An in-memory file system. More...
class	OverlayFileSystem
	A file system that allows overlaying one AbstractFileSystem on top of another. More...
class	ProxyFileSystem
	By default, this delegates all calls to the underlying file system. More...
class	recursive_directory_iterator
	An input iterator over the recursive contents of a virtual path, similar to llvm::sys::fs::recursive_directory_iterator. More...
class	RedirectingFileSystem
	A virtual file system parsed from a YAML file. More...
class	RedirectingFileSystemParser
	A helper class to hold the common YAML parsing state. More...
class	RedirectingFSDirIterImpl
	Directory iterator implementation for RedirectingFileSystem's directory entries. More...
class	Status
	The result of a status operation. More...
class	TracingFileSystem
	File system that tracks the number of calls to the underlying file system. More...
struct	YAMLVFSEntry
class	YAMLVFSWriter

Functions
IntrusiveRefCntPtr< FileSystem >	getRealFileSystem ()
	Gets an vfs::FileSystem for the 'real' file system, as seen by the operating system.
std::unique_ptr< FileSystem >	createPhysicalFileSystem ()
	Create an vfs::FileSystem for the 'real' file system, as seen by the operating system.
llvm::sys::fs::UniqueID	getNextVirtualUniqueID ()
	Get a globally unique ID for a virtual file or directory.
std::unique_ptr< FileSystem >	getVFSFromYAML (std::unique_ptr< llvm::MemoryBuffer > Buffer, llvm::SourceMgr::DiagHandlerTy DiagHandler, StringRef YAMLFilePath, void *DiagContext=nullptr, IntrusiveRefCntPtr< FileSystem > ExternalFS=getRealFileSystem())
	Gets a FileSystem for a virtual file system described in YAML format.
void	collectVFSFromYAML (std::unique_ptr< llvm::MemoryBuffer > Buffer, llvm::SourceMgr::DiagHandlerTy DiagHandler, StringRef YAMLFilePath, SmallVectorImpl< YAMLVFSEntry > &CollectedEntries, void *DiagContext=nullptr, IntrusiveRefCntPtr< FileSystem > ExternalFS=getRealFileSystem())
	Collect all pairs of <virtual path, real path> entries from the YAMLFilePath.
static sys::fs::UniqueID	getUniqueID (hash_code Hash)
static sys::fs::UniqueID	getFileID (sys::fs::UniqueID Parent, llvm::StringRef Name, llvm::StringRef Contents)
static sys::fs::UniqueID	getDirectoryID (sys::fs::UniqueID Parent, llvm::StringRef Name)

Function Documentation

collectVFSFromYAML()

void llvm::vfs::collectVFSFromYAML	(	std::unique_ptr< llvm::MemoryBuffer >	Buffer,
		llvm::SourceMgr::DiagHandlerTy	DiagHandler,
		StringRef	YAMLFilePath,
		SmallVectorImpl< YAMLVFSEntry > &	CollectedEntries,
		void *	DiagContext = nullptr,
		IntrusiveRefCntPtr< FileSystem >	ExternalFS = getRealFileSystem()
	)

Collect all pairs of <virtual path, real path> entries from the YAMLFilePath.

This is used by the module dependency collector to forward the entries into the reproducer output VFS YAML file.

createPhysicalFileSystem()

std::unique_ptr< FileSystem > llvm::vfs::createPhysicalFileSystem

(

)

Create an vfs::FileSystem for the 'real' file system, as seen by the operating system.

It has its own working directory, independent of (but initially equal to) that of the process.

Definition at line 404 of file VirtualFileSystem.cpp.

getDirectoryID()

static sys::fs::UniqueID llvm::vfs::getDirectoryID ( sys::fs::UniqueID  Parent, llvm::StringRef  Name  )

static

Definition at line 823 of file VirtualFileSystem.cpp.

References llvm::sys::fs::UniqueID::getFile(), getUniqueID(), llvm::hash_combine(), and Name.

Referenced by llvm::vfs::detail::NewInMemoryNodeInfo::makeStatus().

getFileID()

static sys::fs::UniqueID llvm::vfs::getFileID ( sys::fs::UniqueID  Parent, llvm::StringRef  Name, llvm::StringRef  Contents  )

static

Definition at line 818 of file VirtualFileSystem.cpp.

References llvm::sys::fs::UniqueID::getFile(), getUniqueID(), llvm::hash_combine(), and Name.

Referenced by llvm::vfs::detail::NewInMemoryNodeInfo::makeStatus().

getNextVirtualUniqueID()

UniqueID llvm::vfs::getNextVirtualUniqueID

(

)

Get a globally unique ID for a virtual file or directory.

Definition at line 2728 of file VirtualFileSystem.cpp.

Referenced by llvm::vfs::RedirectingFileSystemParser::lookupOrCreateEntry().

getRealFileSystem()

IntrusiveRefCntPtr< FileSystem > llvm::vfs::getRealFileSystem

(

)

Gets an vfs::FileSystem for the 'real' file system, as seen by the operating system.

The working directory is linked to the process's working directory. (This is usually thread-hostile).

Definition at line 399 of file VirtualFileSystem.cpp.

Referenced by llvm::OverlapStats::accumulateCounts(), llvm::FileCollectorBase::addDirectory(), llvm::CodeGenData::getInstance(), llvm::MemProfUsePass::MemProfUsePass(), llvm::MIRProfileLoaderPass::MIRProfileLoaderPass(), llvm::PGOInstrumentationUse::PGOInstrumentationUse(), llvm::SanitizerBinaryMetadataPass::run(), llvm::SampleProfileLoaderPass::run(), runNewPMPasses(), and llvm::SanitizerCoveragePass::SanitizerCoveragePass().

getUniqueID()

static sys::fs::UniqueID llvm::vfs::getUniqueID ( hash_code  Hash )

static

Definition at line 814 of file VirtualFileSystem.cpp.

Referenced by getDirectoryID(), and getFileID().

getVFSFromYAML()

std::unique_ptr< FileSystem > llvm::vfs::getVFSFromYAML	(	std::unique_ptr< llvm::MemoryBuffer >	Buffer,
		llvm::SourceMgr::DiagHandlerTy	DiagHandler,
		StringRef	YAMLFilePath,
		void *	DiagContext = nullptr,
		IntrusiveRefCntPtr< FileSystem >	ExternalFS = getRealFileSystem()
	)

Gets a FileSystem for a virtual file system described in YAML format.