kern_thr.c File Reference

#include <sys/cdefs.h>
#include "opt_posix.h"
#include "opt_hwpmc_hooks.h"
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/posix4.h>
#include <sys/ptrace.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/rwlock.h>
#include <sys/sched.h>
#include <sys/sysctl.h>
#include <sys/smp.h>
#include <sys/syscallsubr.h>
#include <sys/sysent.h>
#include <sys/systm.h>
#include <sys/sysproto.h>
#include <sys/signalvar.h>
#include <sys/ucontext.h>
#include <sys/thr.h>
#include <sys/rtprio.h>
#include <sys/umtxvar.h>
#include <sys/limits.h>
#include <machine/frame.h>
#include <security/audit/audit.h>

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Data Structures
struct	thr_create_initthr_args

Macros
#define	suword_lwpid   suword

Functions
	__FBSDID ("$FreeBSD$")
static	SYSCTL_NODE (_kern, OID_AUTO, threads, CTLFLAG_RW|CTLFLAG_MPSAFE, 0, "thread allocation")
	SYSCTL_INT (_kern_threads, OID_AUTO, max_threads_per_proc, CTLFLAG_RW, &max_threads_per_proc, 0, "Limit on threads per proc")
	SYSCTL_INT (_kern_threads, OID_AUTO, max_threads_hits, CTLFLAG_RD, &max_threads_hits, 0, "kern.threads.max_threads_per_proc hit count")
static int	thr_create_initthr (struct thread *td, void *thunk)
int	sys_thr_create (struct thread *td, struct thr_create_args *uap)
int	sys_thr_new (struct thread *td, struct thr_new_args *uap)
static int	thr_new_initthr (struct thread *td, void *thunk)
int	kern_thr_new (struct thread *td, struct thr_param *param)
int	thread_create (struct thread *td, struct rtprio *rtp, int(*initialize_thread)(struct thread *, void *), void *thunk)
int	sys_thr_self (struct thread *td, struct thr_self_args *uap)
int	sys_thr_exit (struct thread *td, struct thr_exit_args *uap)
int	kern_thr_exit (struct thread *td)
int	sys_thr_kill (struct thread *td, struct thr_kill_args *uap)
int	sys_thr_kill2 (struct thread *td, struct thr_kill2_args *uap)
int	sys_thr_suspend (struct thread *td, struct thr_suspend_args *uap)
int	kern_thr_suspend (struct thread *td, struct timespec *tsp)
int	sys_thr_wake (struct thread *td, struct thr_wake_args *uap)
int	sys_thr_set_name (struct thread *td, struct thr_set_name_args *uap)
int	kern_thr_alloc (struct proc *p, int pages, struct thread **ntd)

Variables
int	max_threads_per_proc = 1500
static int	max_threads_hits

Macro Definition Documentation

suword_lwpid

#define suword_lwpid   suword

Definition at line 93 of file kern_thr.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

kern_thr_alloc()

int kern_thr_alloc	(	struct proc *	p,
		int	pages,
		struct thread **	ntd
	)

Definition at line 613 of file kern_thr.c.

References max_threads_hits, max_threads_per_proc, and thread_alloc().

Referenced by thread_create().

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kern_thr_exit()

int kern_thr_exit

(

struct thread *

td

)

Definition at line 325 of file kern_thr.c.

References ptracestop(), tdsigcleanup(), thread_exit(), thread_stopped(), and tidhash_remove().

Referenced by sys_thr_exit(), and thread_suspend_check().

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kern_thr_new()

int kern_thr_new	(	struct thread *	td,
		struct thr_param *	param
	)

Definition at line 176 of file kern_thr.c.

References thr_new_initthr(), and thread_create().

Referenced by sys_thr_new().

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kern_thr_suspend()

int kern_thr_suspend	(	struct thread *	td,
		struct timespec *	tsp
	)

Definition at line 510 of file kern_thr.c.

References tvtohz().

Referenced by sys_thr_suspend().

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sys_thr_create()

int sys_thr_create	(	struct thread *	td,
		struct thr_create_args *	uap
	)

Definition at line 119 of file kern_thr.c.

References thr_create_initthr_args::ctx, thr_create_initthr(), thread_create(), and thr_create_initthr_args::tid.

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sys_thr_exit()

int sys_thr_exit	(	struct thread *	td,
		struct thr_exit_args *	uap
	)

Definition at line 309 of file kern_thr.c.

References kern_thr_exit(), kern_umtx_wake(), suword_lwpid, and umtx_thread_exit().

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sys_thr_kill()

int sys_thr_kill	(	struct thread *	td,
		struct thr_kill_args *	uap
	)

Definition at line 388 of file kern_thr.c.

References tdfind(), and tdksignal().

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sys_thr_kill2()

int sys_thr_kill2	(	struct thread *	td,
		struct thr_kill2_args *	uap
	)

Definition at line 435 of file kern_thr.c.

References p_cansignal(), pfind(), tdfind(), and tdksignal().

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sys_thr_new()

int sys_thr_new	(	struct thread *	td,
		struct thr_new_args *	uap
	)

Definition at line 132 of file kern_thr.c.

References kern_thr_new().

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sys_thr_self()

int sys_thr_self	(	struct thread *	td,
		struct thr_self_args *	uap
	)

Definition at line 297 of file kern_thr.c.

References suword_lwpid.

sys_thr_set_name()

int sys_thr_set_name	(	struct thread *	td,
		struct thr_set_name_args *	uap
	)

Definition at line 578 of file kern_thr.c.

References name, and tdfind().

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sys_thr_suspend()

int sys_thr_suspend	(	struct thread *	td,
		struct thr_suspend_args *	uap
	)

Definition at line 492 of file kern_thr.c.

References kern_thr_suspend(), ts, and umtx_copyin_timeout().

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sys_thr_wake()

int sys_thr_wake	(	struct thread *	td,
		struct thr_wake_args *	uap
	)

Definition at line 554 of file kern_thr.c.

References tdfind(), and wakeup().

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SYSCTL_INT() [1/2]

SYSCTL_INT	(	_kern_threads	,
		OID_AUTO	,
		max_threads_hits	,
		CTLFLAG_RD	,
		&	max_threads_hits,
		0	,
		"kern.threads.max_threads_per_proc hit count"
	)

SYSCTL_INT() [2/2]

SYSCTL_INT	(	_kern_threads	,
		OID_AUTO	,
		max_threads_per_proc	,
		CTLFLAG_RW	,
		&	max_threads_per_proc,
		0	,
		"Limit on threads per proc"
	)

SYSCTL_NODE()

static SYSCTL_NODE ( _kern  , OID_AUTO  , threads  , CTLFLAG_RW|  CTLFLAG_MPSAFE, 0  , "thread allocation"    )

static

thr_create_initthr()

static int thr_create_initthr ( struct thread *  td, void *  thunk  )

static

Definition at line 106 of file kern_thr.c.

References thr_create_initthr_args::ctx, suword_lwpid, and thr_create_initthr_args::tid.

Referenced by sys_thr_create().

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thr_new_initthr()

static int thr_new_initthr ( struct thread *  td, void *  thunk  )

static

Definition at line 147 of file kern_thr.c.

References suword_lwpid.

Referenced by kern_thr_new().

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thread_create()

int thread_create	(	struct thread *	td,
		struct rtprio *	rtp,
		int(*)(struct thread *, void *)	initialize_thread,
		void *	thunk
	)

Definition at line 192 of file kern_thr.c.

References kern_thr_alloc(), priv_check(), rtp_to_pri(), sched_add(), sched_fork_thread(), thread_cow_free(), thread_cow_get(), thread_free(), thread_link(), and tidhash_add().

Referenced by kern_thr_new(), and sys_thr_create().

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Variable Documentation

max_threads_hits

int max_threads_hits

static

Definition at line 74 of file kern_thr.c.

Referenced by kern_thr_alloc().

max_threads_per_proc

int max_threads_per_proc = 1500

Definition at line 70 of file kern_thr.c.

Referenced by kern_thr_alloc(), and threadinit().