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Diffstat (limited to 'modules/libpref/init/StaticPrefListBegin.h')
| -rw-r--r-- | modules/libpref/init/StaticPrefListBegin.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/modules/libpref/init/StaticPrefListBegin.h b/modules/libpref/init/StaticPrefListBegin.h new file mode 100644 index 0000000000..27bd726cc8 --- /dev/null +++ b/modules/libpref/init/StaticPrefListBegin.h @@ -0,0 +1,65 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +// This file does not make sense on its own. It must be #included along with +// StaticPrefsListEnd.h in all headers that contribute prefs to the StaticPrefs +// namespace. + +#include "StaticPrefsBase.h" +#include "Preferences.h" +#include "MainThreadUtils.h" // for NS_IsMainThread() +#include "nsXULAppAPI.h" // for XRE_IsContentProcess() + +namespace mozilla { +namespace StaticPrefs { + +// For mirrored prefs we generate an extern variable declaration and three +// getter declarations/definitions. +#define NEVER_PREF(name, cpp_type, default_value) +#define ALWAYS_PREF(name, base_id, full_id, cpp_type, default_value) \ + extern cpp_type sMirror_##full_id; \ + inline StripAtomic<cpp_type> full_id() { \ + if (IsString<cpp_type>::value && sCrashOnBlocklistedPref) { \ + MOZ_DIAGNOSTIC_ASSERT(!IsPreferenceSanitized(name), \ + "Should not access the preference '" name \ + "' in Content Processes"); \ + } \ + MOZ_DIAGNOSTIC_ASSERT(IsAtomic<cpp_type>::value || NS_IsMainThread(), \ + "Non-atomic static pref '" name \ + "' being accessed on background thread by getter"); \ + return sMirror_##full_id; \ + } \ + inline const char* GetPrefName_##base_id() { return name; } \ + inline StripAtomic<cpp_type> GetPrefDefault_##base_id() { \ + return default_value; \ + } +#define ALWAYS_DATAMUTEX_PREF(name, base_id, full_id, cpp_type, default_value) \ + extern cpp_type sMirror_##full_id; \ + inline cpp_type::ConstAutoLock full_id() { \ + if (IsString<cpp_type>::value && sCrashOnBlocklistedPref) { \ + MOZ_DIAGNOSTIC_ASSERT(!IsPreferenceSanitized(name), \ + "Should not access the preference '" name \ + "' in Content Processes"); \ + } \ + return sMirror_##full_id.ConstLock(); \ + } \ + inline const char* GetPrefName_##base_id() { return name; } \ + inline StripAtomic<cpp_type> GetPrefDefault_##base_id() { \ + return default_value; \ + } +#define ONCE_PREF(name, base_id, full_id, cpp_type, default_value) \ + extern cpp_type sMirror_##full_id; \ + inline cpp_type full_id() { \ + MaybeInitOncePrefs(); \ + if (IsString<cpp_type>::value && sCrashOnBlocklistedPref) { \ + MOZ_DIAGNOSTIC_ASSERT(!IsPreferenceSanitized(name), \ + "Should not access the preference '" name \ + "' in Content Processes"); \ + } \ + return sMirror_##full_id; \ + } \ + inline const char* GetPrefName_##base_id() { return name; } \ + inline cpp_type GetPrefDefault_##base_id() { return default_value; } |