Abstract interface for introducing a FileManager cache for 'stat' system calls, which is used by precompiled and pretokenized headers to improve performance. More...

#include "clang/Basic/FileSystemStatCache.h"

Inheritance diagram for clang::FileSystemStatCache:

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Public Member Functions
virtual	~FileSystemStatCache ()=default

Static Public Member Functions
static std::error_code	get (StringRef Path, llvm::vfs::Status &Status, bool isFile, std::unique_ptr< llvm::vfs::File > F, FileSystemStatCache Cache, llvm::vfs::FileSystem &FS, bool IsText=true)
	Get the 'stat' information for the specified path, using the cache to accelerate it if possible.

Protected Member Functions
virtual std::error_code	getStat (StringRef Path, llvm::vfs::Status &Status, bool isFile, std::unique_ptr< llvm::vfs::File > *F, llvm::vfs::FileSystem &FS)=0

Detailed Description

Abstract interface for introducing a FileManager cache for 'stat' system calls, which is used by precompiled and pretokenized headers to improve performance.

Definition at line 35 of file FileSystemStatCache.h.

Constructor & Destructor Documentation

◆ ~FileSystemStatCache()

virtual clang::FileSystemStatCache::~FileSystemStatCache ( )

virtualdefault

References clang::Cache.

Member Function Documentation

◆ get()

std::error_code FileSystemStatCache::get	(	StringRef	Path,
		llvm::vfs::Status &	Status,
		bool	isFile,
		std::unique_ptr< llvm::vfs::File > *	F,
		FileSystemStatCache *	Cache,
		llvm::vfs::FileSystem &	FS,
		bool	IsText = true )

static

Get the 'stat' information for the specified path, using the cache to accelerate it if possible.

FileSystemStatCache::get - Get the 'stat' information for the specified path, using the cache to accelerate it if possible.

Returns: true if the path does not exist or false if it exists.

If isFile is true, then this lookup should only return success for files (not directories). If it is false this lookup should only return success for directories (not files). On a successful file lookup, the implementation can optionally fill in F with a valid File object and the client guarantees that it will close it.

This returns true if the path does not exist or false if it exists.

If isFile is true, then this lookup should only return success for files (not directories). If it is false this lookup should only return success for directories (not files). On a successful file lookup, the implementation can optionally fill in FileDescriptor with a valid descriptor and the client guarantees that it will close it.

Definition at line 32 of file FileSystemStatCache.cpp.

References clang::Cache.

Referenced by clang::MemorizeStatCalls::getStat().

◆ getStat()

virtual std::error_code clang::FileSystemStatCache::getStat	(	StringRef	Path,
		llvm::vfs::Status &	Status,
		bool	isFile,
		std::unique_ptr< llvm::vfs::File > *	F,
		llvm::vfs::FileSystem &	FS )

protectedpure virtual

Implemented in clang::MemorizeStatCalls.

The documentation for this class was generated from the following files:

include/clang/Basic/FileSystemStatCache.h
lib/Basic/FileSystemStatCache.cpp

Public Member Functions