1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/nix/mime_util_xdg.h" 6 7 #include "base/files/file_path.h" 8 #include "base/no_destructor.h" 9 #include "base/synchronization/lock.h" 10 #include "base/third_party/xdg_mime/xdgmime.h" 11 #include "base/threading/scoped_blocking_call.h" 12 13 namespace base { 14 namespace nix { 15 GetFileMimeType(const FilePath & filepath)16std::string GetFileMimeType(const FilePath& filepath) { 17 if (filepath.empty()) 18 return std::string(); 19 20 base::ScopedBlockingCall scoped_blocking_call(FROM_HERE, 21 base::BlockingType::MAY_BLOCK); 22 23 // None of the XDG stuff is thread-safe, so serialize all access under this 24 // lock. 25 static NoDestructor<Lock> mime_util_xdg_lock; 26 AutoLock scoped_lock(*mime_util_xdg_lock); 27 return xdg_mime_get_mime_type_from_file_name(filepath.value().c_str()); 28 } 29 30 } // namespace nix 31 } // namespace base 32