thread_block(9r) [osf1 man page]

thread_block(9r)														  thread_block(9r)

NAME

       thread_block - General: Blocks (puts to sleep) the current kernel thread

SYNOPSIS

       void thread_block(
	       void );

ARGUMENTS

       None

DESCRIPTION

       The  thread_block  routine  blocks (puts to sleep) the current kernel thread and selects the next kernel thread to start (run). The routine
       schedules the next kernel thread onto this CPU.

       When a kernel thread is waiting for an event, it should block. In general, a kernel thread is blocked when  the	thread	wait  bit  in  the
       thread structure pointer associated with the current kernel thread is set. This bit signifies that this kernel thread is on the appropriate
       wait hash queue, waiting for a wakeup call. This allows the CPU to execute another kernel thread while this kernel thread is blocked.

RETURN VALUES

       None

SEE ALSO

       Routines: assert_wait_mesg(9r), current_thread(9r)

																  thread_block(9r)

current_thread(9r)														current_thread(9r)

NAME

       current_thread - General: Is a pointer to the currently running kernel thread

SYNOPSIS

       void current_thread(
	       void );

ARGUMENTS

       None

DESCRIPTION

       The current_thread routine is a pointer to the currently running kernel thread. Typically, kernel modules use this routine to reference the
       wait_result member of the thread structure pointer associated with the currently running kernel thread. A module calls current_thread after
       calls  to  assert_wait_mesg  and  thread_block.	If  the  module  needs	to  set  a  timeout,  then  it calls current_thread after calls to
       assert_wait_mesg, thread_set_timeout, and thread_block.

       The kernel can set the wait_result member to one of the following values: The result of the assert wait is a normal wakeup.  The  specified
       timeout has expired.  The wait condition was interrupted by the clear_wait routine.  The result of the assert wait is that the current ker-
       nel thread should terminate.  The current kernel thread should be restarted.

RETURN VALUES

       None

SEE ALSO

       Routines: assert_wait_mesg(9r), clear_wait(9r), thread_block(9r), thread_set_timeout(9r)

       Data Structures: thread(9s)

																current_thread(9r)