MAJOR=4
MINOR=62
DEVNAME=tty62
  +   	€l–Ь4э( ©і( 	ЕЂfаB¦-яї„ќ}ї_†I|ҐЏ+ГВ ?ч     	/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_SCHED_SIGNAL_H
#define _LINUX_SCHED_SIGNAL_H

#include <linux/rculist.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/sched/jobctl.h>
#include <linux/sched/task.h>
#include <linux/cred.h>
#include <linux/refcount.h>
#include <linux/posix-timers.h>
#include <linux/mm_types.h>
#include <asm/ptrace.h>

/*
 * Types defining task->signal and task->sighand and APIs using them:
 */

struct sighand_struct {
	spinlock_t		siglock;
	refcount_t		count;
	wait_queue_head_t	signalfd_wqh;
	struct k_sigaction	action[_NSIG];
};

/*
 * Per-process accounting stats:
 */
struct pacct_struct {
	int			ac_flag;
	long			ac_exitcode;
	unsigned long		ac_mem;
	u64			ac_utime, ac_stime;
	unsigned long		ac_minflt, ac_majflt;
};

struct cpu_itimer {
	u64 expires;
	u64 incr;
};

/*
 * This is the atomic variant of task_cputime, which can be used for
 * storing and updating task_cputime statistics without locking.
 */
struct task_cputime_atomic {
	atomic64_t utime;
	atomic64_t stime;
	atomic64_t sum_exec_runtime;
};

#define INIT_CPUTIME_ATOMIC \
	(struct task_cputime_atomic) {				\
		.utime = ATOMIC64_INIT(0),			\
		.stime = ATOMIC64_INIT(0),			\
		.sum_exec_runtime = ATOMIC64_INIT(0),		\
	}
/**
 * struct thread_group_cputimer - thread group interval timer counts
 * @cputime_atomic:	atomic thread group interval timers.
 *
 * This structure contains the version of task_cputime, above, that is
 * used for thread group CPU timer calculations.
 */
struct thread_group_cputimer {
	struct task_cputime_atomic cputime_atomic;
};

struct multiprocess_signals {
	sigset_t signal;
	struct hlist_node node;
};

struct core_thread {
	struct task_struct *task;
	struct core_thread *next;
};

struct core_state {
	atomic_t nr_threads;
	struct core_thread dumper;
	struct completion startup;
};

/*
 * NOTE! "signal_struct" does not have its own
 * locking, because a shared signal_struct always
 * implies a shared sighand_struct, so locking
 * sighand_struct is always a proper superset of
 * the locking of signal_struct.
 */
struct signal_struct {
	refcount_t		sigcnt;
	atomic_t		live;
	int			nr_threads;
	int			quick_threads;
	struct list_head	thread_head;

	wait_queue_head_t	wait_chldexit;	/* for wait4() */

	/* current thread group signal load-balancing target: */
	struct task_struct	*curr_target;

	/* shared signal handling: */
	struct sigpending	shared_pending;

	/* For collecting multiprocess signals during fork */
	struct hlist_head	multiprocess;

	/* thread group exit support */
	int			group_exit_code;
	/* notify group_exec_task when notify_count is less or equal to 0 */
	int			notify_count;
	struct task_struct	*group_exec_task;

	/* thread group stop support, overloads group_exit_code too */
	int			group_stop_count;
	unsigned int		flags; /* see SIGNAL_* flags below */

	struct core_state *core_state; /* coredumping support */

	/*
	 * PR_SET_CHILD_SUBREAPER marks a process, like a service
	 * manager, to re-parent orphan (double-forking) child processes
	 * to this process instead of 'init'. The service manager is
	 * able to receive SIGCHLD signals and is able to investigate
	 * the process until it calls wait(). All children of this
	 * process will inherit a flag if they should look for a
	 * child_subreaper process at exit.
	 */
	unsigned int		is_child_subreaper:1;
	unsigned int		has_child_subreaper:1;

#ifdef CONFIG_POSIX_TIMERS

	/* POSIX.1b Interval Timers */
	int			posix_timer_id;
	struct list_head	posix_timers;

	/* ITIMER_REAL timer for the process */
	struct hrtimer real_timer;
	ktime_t it_real_incr;

	/*
	 * ITIMER_PROF and ITIMER_VIRTUAL timers for the process, we use
	 * CPUCLOCK_PROF and CPUCLOCK_VIRT for indexing array as these
	 * values are defined to 0 and 1 respectively
	 */
	struct cpu_itimer it[2];

	/*
	 * Thread group totals for process CPU timers.
	 * See thread_group_cputimer(), et al, for details.
	 */
	struct thread_group_cputimer cputimer;

#endif
	/* Empty if CONFIG_POSIX_T