зеркало из https://github.com/mozilla/gecko-dev.git
154 строки
4.2 KiB
C++
154 строки
4.2 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/IPCMessageUtils.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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class SwitchEvent;
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enum SwitchDevice {
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SWITCH_DEVICE_UNKNOWN = -1,
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SWITCH_HEADPHONES,
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SWITCH_USB,
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NUM_SWITCH_DEVICE
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};
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enum SwitchState {
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SWITCH_STATE_UNKNOWN = -1,
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SWITCH_STATE_ON,
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SWITCH_STATE_OFF,
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SWITCH_STATE_HEADSET, // Headphone with microphone
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SWITCH_STATE_HEADPHONE, // without microphone
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NUM_SWITCH_STATE
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};
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typedef Observer<SwitchEvent> SwitchObserver;
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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_MASTER,
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NUM_PROCESS_PRIORITY
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};
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/**
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* Values that can be passed to hal::SetCurrentThreadPriority(). These should be
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* functional in nature, such as COMPOSITOR, instead of levels, like LOW/HIGH.
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* This allows us to tune our priority scheme for the system in one place such
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* that it makes sense holistically for the overall operating system. On
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* android we may want different priority schemes than on windows, etc.
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*/
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enum ThreadPriority {
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THREAD_PRIORITY_COMPOSITOR,
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NUM_THREAD_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*
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ProcessPriorityToString(ProcessPriority aPriority);
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/**
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* Convert a ThreadPriority 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 assert in debug builds
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* and otherwise return "???".
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*/
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const char *
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ThreadPriorityToString(ThreadPriority 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<
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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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{};
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/**
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* Serializer for SwitchState
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*/
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template <>
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struct ParamTraits<mozilla::hal::SwitchState>:
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public ContiguousEnumSerializer<
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mozilla::hal::SwitchState,
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mozilla::hal::SWITCH_STATE_UNKNOWN,
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mozilla::hal::NUM_SWITCH_STATE> {
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};
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/**
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* Serializer for SwitchDevice
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*/
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template <>
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struct ParamTraits<mozilla::hal::SwitchDevice>:
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public ContiguousEnumSerializer<
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mozilla::hal::SwitchDevice,
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mozilla::hal::SWITCH_DEVICE_UNKNOWN,
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mozilla::hal::NUM_SWITCH_DEVICE> {
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};
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template <>
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struct ParamTraits<mozilla::hal::ProcessPriority>:
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public ContiguousEnumSerializer<
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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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};
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} // namespace IPC
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#endif // mozilla_hal_Types_h
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