2b72262b4f
I hereby relicense all my work on Sortix under the ISC license as below. All Sortix contributions by other people are already under this license, are not substantial enough to be copyrightable, or have been removed. All imported code from other projects is compatible with this license. All GPL licensed code from other projects had previously been removed. Copyright 2011-2016 Jonas 'Sortie' Termansen and contributors. Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
102 lines
3 KiB
C++
102 lines
3 KiB
C++
/*
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* Copyright (c) 2011, 2012, 2013, 2014, 2015 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/thread.h
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* Describes a thread belonging to a process.
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*/
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#ifndef INCLUDE_SORTIX_KERNEL_THREAD_H
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#define INCLUDE_SORTIX_KERNEL_THREAD_H
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#include <stdint.h>
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#include <sortix/sigaction.h>
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#include <sortix/signal.h>
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#include <sortix/sigset.h>
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#include <sortix/stack.h>
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#include <sortix/kernel/clock.h>
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#include <sortix/kernel/kthread.h>
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#include <sortix/kernel/registers.h>
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#include <sortix/kernel/scheduler.h>
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#include <sortix/kernel/signal.h>
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namespace Sortix {
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class Process;
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class Thread;
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// These functions create a new kernel process but doesn't start it.
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Thread* CreateKernelThread(Process* process, struct thread_registers* regs);
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Thread* CreateKernelThread(Process* process, void (*entry)(void*), void* user,
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size_t stacksize = 0);
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Thread* CreateKernelThread(void (*entry)(void*), void* user, size_t stacksize = 0);
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// This function can be used to start a thread from the above functions.
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void StartKernelThread(Thread* thread);
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// Alternatively, these functions both create and start the thread.
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Thread* RunKernelThread(Process* process, struct thread_registers* regs);
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Thread* RunKernelThread(Process* process, void (*entry)(void*), void* user,
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size_t stacksize = 0);
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Thread* RunKernelThread(void (*entry)(void*), void* user, size_t stacksize = 0);
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class Thread
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{
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public:
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Thread();
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~Thread();
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public:
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uintptr_t system_tid;
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uintptr_t yield_to_tid;
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struct thread_registers registers;
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uint8_t* self_allocation;
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size_t id;
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Process* process;
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Thread* prevsibling;
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Thread* nextsibling;
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Thread* scheduler_list_prev;
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Thread* scheduler_list_next;
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volatile ThreadState state;
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sigset_t signal_pending;
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sigset_t signal_mask;
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stack_t signal_stack;
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addr_t kernelstackpos;
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size_t kernelstacksize;
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bool kernelstackmalloced;
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bool pledged_destruction;
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bool force_no_signals;
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Clock execute_clock;
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Clock system_clock;
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public:
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void HandleSignal(struct interrupt_context* intctx);
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void HandleSigreturn(struct interrupt_context* intctx);
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bool DeliverSignal(int signum);
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bool DeliverSignalUnlocked(int signum);
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void DoUpdatePendingSignal();
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};
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Thread* AllocateThread();
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void FreeThread(Thread* thread);
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Thread* CurrentThread();
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} // namespace Sortix
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#endif
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