ladybird/Kernel/Forward.h
Tom 78f1b5e359 Kernel: Fix some problems with Thread::wait_on and Lock
This changes the Thread::wait_on function to not enable interrupts
upon leaving, which caused some problems with page fault handlers
and in other situations. It may now be called from critical
sections, with interrupts enabled or disabled, and returns to the
same state.

This also requires some fixes to Lock. To aid debugging, a new
define LOCK_DEBUG is added that enables checking for Lock leaks
upon finalization of a Thread.
2020-12-01 09:48:34 +01:00

81 lines
2.3 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
namespace Kernel {
class BlockDevice;
class CharacterDevice;
class Custody;
class Device;
class DiskCache;
class DoubleBuffer;
class File;
class FileDescription;
class IPv4Socket;
class Inode;
class InodeIdentifier;
class SharedInodeVMObject;
class InodeWatcher;
class KBuffer;
class KResult;
class LocalSocket;
class Lock;
class MappedROM;
class MasterPTY;
class PageDirectory;
class PerformanceEventBuffer;
class PhysicalPage;
class PhysicalRegion;
class Process;
class ProcessGroup;
class ThreadTracer;
class Range;
class RangeAllocator;
class Region;
class Scheduler;
class SchedulerPerProcessorData;
class SharedBuffer;
class Socket;
template<typename BaseType>
class SpinLock;
class RecursiveSpinLock;
template<typename LockType>
class ScopedSpinLock;
class TCPSocket;
class TTY;
class Thread;
class UDPSocket;
class UserOrKernelBuffer;
class VFS;
class VMObject;
class WaitQueue;
template<typename T>
class KResultOr;
}