blob: 70dfb441a00cd47c71b32cef27ce70edc9291937 [file] [log] [blame]
//===--- FSProvider.h - VFS provider for ClangdServer ------------*- C++-*-===//
// The LLVM Compiler Infrastructure
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
#include "clang/Basic/VirtualFileSystem.h"
#include "llvm/ADT/IntrusiveRefCntPtr.h"
namespace clang {
namespace clangd {
// Wrapper for vfs::FileSystem for use in multithreaded programs like clangd.
// As FileSystem is not threadsafe, concurrent threads must each obtain one.
class FileSystemProvider {
virtual ~FileSystemProvider() = default;
/// Called by ClangdServer to obtain a vfs::FileSystem to be used for parsing.
/// Context::current() will be the context passed to the clang entrypoint,
/// such as addDocument(), and will also be propagated to result callbacks.
/// Embedders may use this to isolate filesystem accesses.
virtual IntrusiveRefCntPtr<vfs::FileSystem> getFileSystem() = 0;
class RealFileSystemProvider : public FileSystemProvider {
// FIXME: returns the single real FS instance, which is not threadsafe.
IntrusiveRefCntPtr<vfs::FileSystem> getFileSystem() override {
return vfs::getRealFileSystem();
} // namespace clangd
} // namespace clang