StaticPrefListBegin.h (2965B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 // This file does not make sense on its own. It must be #included along with 8 // StaticPrefsListEnd.h in all headers that contribute prefs to the StaticPrefs 9 // namespace. 10 11 #include "StaticPrefsBase.h" 12 #include "Preferences.h" 13 #include "MainThreadUtils.h" // for NS_IsMainThread() 14 #include "nsXULAppAPI.h" // for XRE_IsContentProcess() 15 16 namespace mozilla { 17 namespace StaticPrefs { 18 19 // For mirrored prefs we generate an extern variable declaration and three 20 // getter declarations/definitions. 21 #define NEVER_PREF(name, cpp_type, default_value) 22 #define ALWAYS_PREF(name, base_id, full_id, cpp_type, default_value) \ 23 extern cpp_type sMirror_##full_id; \ 24 inline StripAtomic<cpp_type> full_id() { \ 25 MOZ_DIAGNOSTIC_ASSERT(IsAtomic<cpp_type>::value || NS_IsMainThread(), \ 26 "Non-atomic static pref '" name \ 27 "' being accessed on background thread by getter"); \ 28 return sMirror_##full_id; \ 29 } \ 30 inline const char* GetPrefName_##base_id() { return name; } \ 31 inline StripAtomic<cpp_type> GetPrefDefault_##base_id() { \ 32 return default_value; \ 33 } 34 #define ALWAYS_DATAMUTEX_PREF(name, base_id, full_id, cpp_type, default_value) \ 35 extern cpp_type sMirror_##full_id; \ 36 inline cpp_type::ConstAutoLock full_id() { \ 37 return sMirror_##full_id.ConstLock(); \ 38 } \ 39 inline const char* GetPrefName_##base_id() { return name; } \ 40 inline StripAtomic<cpp_type> GetPrefDefault_##base_id() { \ 41 return default_value; \ 42 } 43 #define ONCE_PREF(name, base_id, full_id, cpp_type, default_value) \ 44 extern cpp_type sMirror_##full_id; \ 45 inline cpp_type full_id() { \ 46 MaybeInitOncePrefs(); \ 47 return sMirror_##full_id; \ 48 } \ 49 inline const char* GetPrefName_##base_id() { return name; } \ 50 inline cpp_type GetPrefDefault_##base_id() { return default_value; }