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/lazy_instance.h" 9#include "base/synchronization/lock.h" 10#include "base/third_party/xdg_mime/xdgmime.h" 11#include "base/threading/thread_restrictions.h" 12 13namespace base { 14namespace nix { 15 16namespace { 17 18// None of the XDG stuff is thread-safe, so serialize all access under 19// this lock. 20LazyInstance<Lock>::Leaky g_mime_util_xdg_lock = LAZY_INSTANCE_INITIALIZER; 21 22} // namespace 23 24std::string GetFileMimeType(const FilePath& filepath) { 25 if (filepath.empty()) 26 return std::string(); 27 ThreadRestrictions::AssertIOAllowed(); 28 AutoLock scoped_lock(g_mime_util_xdg_lock.Get()); 29 return xdg_mime_get_mime_type_from_file_name(filepath.value().c_str()); 30} 31 32std::string GetDataMimeType(const std::string& data) { 33 ThreadRestrictions::AssertIOAllowed(); 34 AutoLock scoped_lock(g_mime_util_xdg_lock.Get()); 35 return xdg_mime_get_mime_type_for_data(data.data(), data.length(), NULL); 36} 37 38} // namespace nix 39} // namespace base 40