Wrapper for vfs::FileSystem for use in multithreaded programs like clangd. More...

#include <ThreadsafeFS.h>

Inheritance diagram for clang::clangd::ThreadsafeFS:

Public Member Functions
virtual	~ThreadsafeFS ()=default

llvm::IntrusiveRefCntPtr< llvm::vfs::FileSystem >	view (std::nullopt_t CWD) const
	Obtain a vfs::FileSystem with an arbitrary initial working directory.

llvm::IntrusiveRefCntPtr< llvm::vfs::FileSystem >	view (PathRef CWD) const
	Obtain a vfs::FileSystem with a specified working directory.

Detailed Description

Wrapper for vfs::FileSystem for use in multithreaded programs like clangd.

As FileSystem is not threadsafe, concurrent threads must each obtain one. Implementations may choose to depend on Context::current() e.g. to implement snapshot semantics. clangd will not create vfs::FileSystems for use in different contexts, so either ThreadsafeFS::view or the returned FS may contain this logic.

Definition at line 26 of file ThreadsafeFS.h.

Constructor & Destructor Documentation

◆ ~ThreadsafeFS()

virtual clang::clangd::ThreadsafeFS::~ThreadsafeFS ( )

virtualdefault

Member Function Documentation

◆ view() [1/2]

llvm::IntrusiveRefCntPtr< llvm::vfs::FileSystem > clang::clangd::ThreadsafeFS::view ( PathRef CWD ) const

Obtain a vfs::FileSystem with a specified working directory.

If the working directory can't be set (e.g. doesn't exist), logs and returns the FS anyway.

Definition at line 75 of file ThreadsafeFS.cpp.

References clang::clangd::elog(), and view().

◆ view() [2/2]

llvm::IntrusiveRefCntPtr< llvm::vfs::FileSystem > clang::clangd::ThreadsafeFS::view ( std::nullopt_t CWD ) const

inline

Obtain a vfs::FileSystem with an arbitrary initial working directory.

Definition at line 32 of file ThreadsafeFS.h.

Referenced by clang::clangd::buildCompilerInvocation(), clang::clangd::buildPreamble(), clang::clangd::getFormatStyleForFile(), clang::clangd::indexStandardLibrary(), clang::clangd::isPreambleCompatible(), clang::clangd::ClangdServer::switchSourceHeader(), and view().