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4cab6ac723
This moves parts of IPCMessageUtils.h to two new header files and adapts the include directives as necessary. The new header files are: - EnumSerializer.h, which defines the templates for enum serializers - IPCMessageUtilsSpecializations.h, which defines template specializations of ParamTraits with extra dependencies (building upon both IPCMessageUtils.h and EnumSerializer.h) This should minimize the dependencies pulled in by every consumer of IPCMessageUtils.h Differential Revision: https://phabricator.services.mozilla.com/D94459
84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_hal_Types_h
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#define mozilla_hal_Types_h
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#include "ipc/EnumSerializer.h"
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#include "mozilla/Observer.h"
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namespace mozilla {
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namespace hal {
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/**
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* These constants specify special values for content process IDs. You can get
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* a content process ID by calling ContentChild::GetID() or
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* ContentParent::GetChildID().
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*/
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const uint64_t CONTENT_PROCESS_ID_UNKNOWN = uint64_t(-1);
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const uint64_t CONTENT_PROCESS_ID_MAIN = 0;
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// Note that we rely on the order of this enum's entries. Higher priorities
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// should have larger int values.
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enum ProcessPriority {
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PROCESS_PRIORITY_UNKNOWN = -1,
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PROCESS_PRIORITY_BACKGROUND,
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PROCESS_PRIORITY_BACKGROUND_PERCEIVABLE,
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PROCESS_PRIORITY_FOREGROUND_KEYBOARD,
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// The special class for the preallocated process, high memory priority but
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// low CPU priority.
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PROCESS_PRIORITY_PREALLOC,
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// Any priority greater than or equal to FOREGROUND is considered
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// "foreground" for the purposes of priority testing, for example
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// CurrentProcessIsForeground().
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PROCESS_PRIORITY_FOREGROUND,
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PROCESS_PRIORITY_FOREGROUND_HIGH,
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PROCESS_PRIORITY_PARENT_PROCESS,
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NUM_PROCESS_PRIORITY
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};
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/**
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* Convert a ProcessPriority enum value to a string. The strings returned by
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* this function are statically allocated; do not attempt to free one!
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*
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* If you pass an unknown process priority, we fatally assert in debug
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* builds and otherwise return "???".
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*/
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const char* ProcessPriorityToString(ProcessPriority aPriority);
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/**
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* Used by ModifyWakeLock
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*/
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enum WakeLockControl {
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WAKE_LOCK_REMOVE_ONE = -1,
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WAKE_LOCK_NO_CHANGE = 0,
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WAKE_LOCK_ADD_ONE = 1,
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NUM_WAKE_LOCK
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};
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} // namespace hal
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} // namespace mozilla
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namespace IPC {
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/**
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* WakeLockControl serializer.
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*/
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template <>
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struct ParamTraits<mozilla::hal::WakeLockControl>
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: public ContiguousEnumSerializer<mozilla::hal::WakeLockControl,
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mozilla::hal::WAKE_LOCK_REMOVE_ONE,
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mozilla::hal::NUM_WAKE_LOCK> {};
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template <>
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struct ParamTraits<mozilla::hal::ProcessPriority>
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: public ContiguousEnumSerializer<mozilla::hal::ProcessPriority,
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mozilla::hal::PROCESS_PRIORITY_UNKNOWN,
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mozilla::hal::NUM_PROCESS_PRIORITY> {};
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} // namespace IPC
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#endif // mozilla_hal_Types_h
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