Mark
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
#pragma once
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#if defined(ARCH_AMD64)
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#include "arch/amd64/asm/asm_thread.h"
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#endif
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#include "sys/list.h"
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#include "fs/vfs.h"
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#include "sys/mm.h"
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#define THREAD_MAX_FDS 16
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struct ofile;
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enum thread_state {
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THREAD_READY = 1,
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THREAD_RUNNING,
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THREAD_WAITING,
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THREAD_WAITING_IO,
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THREAD_WAITING_PID,
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THREAD_STOPPED
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};
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#define THREAD_KERNEL (1 << 0)
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#define THREAD_EMPTY (1 << 1)
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#define thread_signal_clear(thr, signum) \
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(thr)->sigq &= ~(1ULL << ((signum) - 1))
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#define thread_signal_set(thr, signum) \
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(thr)->sigq |= 1ULL << ((signum) - 1);
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#define thread_signal_pending(thr, signum) \
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((thr)->sigq & (1ULL << ((signum) - 1)))
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struct thread {
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// Platform data and context
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struct thread_data data;
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mm_space_t space;
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size_t image_end;
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size_t brk;
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// I/O
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struct vfs_ioctx ioctx;
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struct ofile *fds[THREAD_MAX_FDS];
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// Wait
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uint64_t sleep_deadline;
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struct thread *wait_prev, *wait_next;
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// Signal
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uintptr_t signal_entry;
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uint64_t sigq;
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// State
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char name[256];
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uint32_t flags;
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pid_t pid;
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pid_t pgid;
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enum thread_state state;
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struct thread *parent;
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struct thread *first_child;
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struct thread *next_child;
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int exit_status;
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// Global thread list (for stuff like finding by PID)
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struct list_link g_link;
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// Scheduler
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int cpu;
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struct thread *sched_prev, *sched_next;
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};
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pid_t thread_alloc_pid(int is_user);
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void thread_ioctx_fork(struct thread *dst, struct thread *src);
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int thread_init(struct thread *thr, uintptr_t entry, void *arg, int user);
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void thread_cleanup(struct thread *thr);
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struct thread *thread_find(pid_t pid);
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void thread_signal(struct thread *thr, int signum);
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int thread_check_signal(struct thread *thr, int ret);
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void thread_sigenter(int signum);
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int thread_signal_pgid(pid_t pgid, int signum);
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int thread_sleep(struct thread *thr, uint64_t deadline, uint64_t *int_time);
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