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Matheus
95 lines
2.1 KiB
C
95 lines
2.1 KiB
C
#ifndef _SCHEDULER_H
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#define _SCHEDULER_H
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#include <arch/context.h>
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#include <kernel/vmm.h>
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#include <kernel/abi.h>
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#include <kernel/vfs.h>
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#include <semaphore.h>
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#define SCHED_THREAD_FLAGS_QUEUED 1
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#define SCHED_THREAD_FLAGS_RUNNING 2
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#define SCHED_THREAD_FLAGS_SLEEP 4
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#define SCHED_THREAD_FLAGS_INTERRUPTIBLE 8
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#define SCHED_PROC_STATE_NORMAL 0
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#define SCHED_PROC_STATE_ZOMBIE 1
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#define STACK_TOP (void *)0x0000800000000000
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#define INTERP_BASE (void *)0x00000beef0000000
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struct proc_t;
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typedef struct thread_t {
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void *kernelstacktop;
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struct thread_t *next;
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struct thread_t *prev;
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struct thread_t *sleepnext;
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struct thread_t *sleepprev;
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struct proc_t *proc;
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struct cpu_t *cpu;
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struct cpu_t *cputarget;
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context_t context;
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extracontext_t extracontext;
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void *kernelstack;
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size_t kernelstacksize;
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vmmcontext_t *vmmctx;
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tid_t tid;
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int flags;
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long priority;
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bool sleepintstatus;
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spinlock_t sleeplock;
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int wakeupreason;
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} thread_t;
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typedef struct proc_t {
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spinlock_t lock;
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int status;
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int state;
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struct proc_t *sibling;
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struct proc_t *parent;
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struct proc_t *child;
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pid_t pid;
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cred_t cred;
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thread_t **threads;
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size_t threadtablesize;
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size_t runningthreadcount;
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size_t fdcount;
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uintmax_t fdfirst;
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spinlock_t fdlock;
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struct fd_t *fd;
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mode_t umask;
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int flags;
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vnode_t *cwd;
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vnode_t *root;
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spinlock_t nodeslock;
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semaphore_t waitsem;
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} proc_t;
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#include <arch/cpu.h>
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#define UMASK(mode) ((mode) & ~_cpu()->thread->proc->umask)
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extern proc_t *sched_initproc;
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void sched_init();
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void sched_runinit();
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__attribute__((noreturn)) void sched_threadexit();
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void sched_queue(thread_t *thread);
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void sched_stopcurrentthread();
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int sched_yield();
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void sched_preparesleep(bool interruptible);
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void sched_wakeup(thread_t *thread, int reason);
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int sched_sleep();
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proc_t *sched_newproc();
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vnode_t *sched_getcwd();
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vnode_t *sched_getroot();
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void sched_setcwd(vnode_t *);
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void sched_setroot(vnode_t *);
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thread_t *sched_newthread(void *ip, size_t kstacksize, int priority, proc_t *proc, void *ustack);
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void sched_destroyproc(proc_t *);
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void sched_destroythread(thread_t *);
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void sched_targetcpu(struct cpu_t *cpu);
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#endif
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