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SWI_SWITCH and SWI_NOSWITCH were OBE a long time ago.

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John Baldwin 2002-10-11 19:45:19 +00:00
parent c5c7175bd5
commit a3672eee7a
1 changed files with 5 additions and 12 deletions
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17
share/man/man9/swi.9
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@ -123,16 +123,7 @@ The
.Fa flags
argument specifies how and when the handler should be run and is a mask of one
or more of the following flags:
.Bl -tag -width SWI_NOSWITCH
.It Dv SWI_SWITCH
Specifies that the kernel should schedule the software interrupt thread
associated with the specified handler to run. If lightweight context switches
are in place, then the kernel will switch to this thread and run it
immediately.
.It Dv SWI_NOSWITCH
Specifies that the kernel should schedule the software interrupt thread
associated with the specified handler to run, but it should not attempt to
switch to the thread immediately.
.Bl -tag -width SWI_DELAY
.It Dv SWI_DELAY
Specifies that the kernel should mark the specified handler as needing to run,
but the kernel should not schedule the software interrupt thread to run.
@ -142,8 +133,10 @@ will be executed the next time that the software interrupt thread runs after
being scheduled by another event.
Attaching a handler to the clock software interrupt thread and using this flag
when scheduling a software interrupt handler can be used to implement the
functionality previously performed by
.Fn setdelayed .
functionality performed by
.Fn setdelayed
in earlier versions of
.Fx .
.El
.Pp
The