75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013, 2014.
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This file is part of Sortix.
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Sortix is free software: you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation, either version 3 of the License, or (at your option) any later
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version.
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Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along with
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Sortix. If not, see <http://www.gnu.org/licenses/>.
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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, BLOCKING, DEAD };
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} // namespace Sortix
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namespace Sortix {
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namespace Scheduler {
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#if defined(__i386__) || defined(__x86_64__)
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static inline void Yield()
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{
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asm volatile ("int $129");
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}
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__attribute__ ((noreturn))
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static inline void ExitThread()
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{
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asm volatile ("int $132");
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__builtin_unreachable();
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}
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#endif
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void Switch(struct interrupt_context* intctx);
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void SetThreadState(Thread* thread, ThreadState state);
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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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