Differential D22914 Diff 65960 head/share/man/man9/sleepqueue.9

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head/share/man/man9/sleepqueue.9

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	.Sh SYNOPSIS			.Sh SYNOPSIS
	.In sys/param.h			.In sys/param.h
	.In sys/sleepqueue.h			.In sys/sleepqueue.h
	.Ft void			.Ft void
	.Fn init_sleepqueues "void"			.Fn init_sleepqueues "void"
	.Ft int			.Ft int
	.Fn sleepq_abort "struct thread *td"			.Fn sleepq_abort "struct thread *td"
	.Ft void			.Ft void
	.Fn sleepq_add "void wchan" "struct lock_object lock" "const char *wmesg" "int flags" "int queue"			.Fn sleepq_add "const void wchan" "struct lock_object lock" "const char *wmesg" "int flags" "int queue"
	.Ft struct sleepqueue *			.Ft struct sleepqueue *
	.Fn sleepq_alloc "void"			.Fn sleepq_alloc "void"
	.Ft int			.Ft int
	.Fn sleepq_broadcast "void *wchan" "int flags" "int pri" "int queue"			.Fn sleepq_broadcast "const void *wchan" "int flags" "int pri" "int queue"
	.Ft void			.Ft void
	.Fn sleepq_free "struct sleepqueue *sq"			.Fn sleepq_free "struct sleepqueue *sq"
	.Ft struct sleepqueue *			.Ft struct sleepqueue *
	.Fn sleepq_lookup "void *wchan"			.Fn sleepq_lookup "const void *wchan"
	.Ft void			.Ft void
	.Fn sleepq_lock "void *wchan"			.Fn sleepq_lock "const void *wchan"
	.Ft void			.Ft void
	.Fn sleepq_release "void *wchan"			.Fn sleepq_release "const void *wchan"
	.Ft void			.Ft void
	.Fn sleepq_remove "struct thread td" "void wchan"			.Fn sleepq_remove "struct thread td" "const void wchan"
	.Ft int			.Ft int
	.Fn sleepq_signal "void *wchan" "int flags" "int pri" "int queue"			.Fn sleepq_signal "const void *wchan" "int flags" "int pri" "int queue"
	.Ft void			.Ft void
	.Fn sleepq_set_timeout "void *wchan" "int timo"			.Fn sleepq_set_timeout "const void *wchan" "int timo"
	.Ft void			.Ft void
	.Fn sleepq_set_timeout_sbt "void *wchan" "sbintime_t sbt" \			.Fn sleepq_set_timeout_sbt "const void *wchan" "sbintime_t sbt" \
	"sbintime_t pr" "int flags"			"sbintime_t pr" "int flags"
	.Ft u_int			.Ft u_int
	.Fn sleepq_sleepcnt "void *wchan" "int queue"			.Fn sleepq_sleepcnt "const void *wchan" "int queue"
	.Ft int			.Ft int
	.Fn sleepq_timedwait "void *wchan" "int pri"			.Fn sleepq_timedwait "const void *wchan" "int pri"
	.Ft int			.Ft int
	.Fn sleepq_timedwait_sig "void *wchan" "int pri"			.Fn sleepq_timedwait_sig "const void *wchan" "int pri"
	.Ft int			.Ft int
	.Fn sleepq_type "void *wchan"			.Fn sleepq_type "const void *wchan"
	.Ft void			.Ft void
	.Fn sleepq_wait "void *wchan" "int pri"			.Fn sleepq_wait "const void *wchan" "int pri"
	.Ft int			.Ft int
	.Fn sleepq_wait_sig "void *wchan" "int pri"			.Fn sleepq_wait_sig "const void *wchan" "int pri"
	.Sh DESCRIPTION			.Sh DESCRIPTION
	Sleep queues provide a mechanism for suspending execution of a thread until			Sleep queues provide a mechanism for suspending execution of a thread until
	some condition is met.			some condition is met.
	Each queue is associated with a specific wait channel when it is active,			Each queue is associated with a specific wait channel when it is active,
	and only one queue may be associated with a wait channel at any given point			and only one queue may be associated with a wait channel at any given point
	in time.			in time.
	The implementation of each wait channel splits its sleepqueue into 2 sub-queues			The implementation of each wait channel splits its sleepqueue into 2 sub-queues
	in order to enable some optimizations on threads' wakeups.			in order to enable some optimizations on threads' wakeups.
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