59 lines
2.2 KiB
C++
59 lines
2.2 KiB
C++
/*
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* Copyright (c) 2011, 2012, 2013, 2014, 2017, 2021 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* sortix/kernel/scheduler.h
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* Decides the order to execute threads in and switching between them.
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*/
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#ifndef _INCLUDE_SORTIX_KERNEL_SCHEDULER_H
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#define _INCLUDE_SORTIX_KERNEL_SCHEDULER_H
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#include <sortix/kernel/decl.h>
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#include <sortix/kernel/registers.h>
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namespace Sortix {
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class Process;
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class Thread;
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} // namespace Sortix
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namespace Sortix {
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enum ThreadState { NONE, RUNNABLE, FUTEX_WAITING, DEAD };
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} // namespace Sortix
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namespace Sortix {
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namespace Scheduler {
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void Switch(struct interrupt_context* intctx);
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void SwitchTo(struct interrupt_context* intctx, Thread* new_thread);
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void SetThreadState(Thread* thread, ThreadState state, bool wake_only = false);
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void SetSignalPending(Thread* thread, unsigned long is_pending);
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ThreadState GetThreadState(Thread* thread);
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void SetIdleThread(Thread* thread);
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void SetInitProcess(Process* init);
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Process* GetInitProcess();
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Process* GetKernelProcess();
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void InterruptYieldCPU(struct interrupt_context* intctx, void* user);
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void ThreadExitCPU(struct interrupt_context* intctx, void* user);
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void SaveInterruptedContext(const struct interrupt_context* intctx,
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struct thread_registers* registers);
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void LoadInterruptedContext(struct interrupt_context* intctx,
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const struct thread_registers* registers);
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void ScheduleTrueThread();
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} // namespace Scheduler
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} // namespace Sortix
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#endif
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