Linear linked list node delete Post: 302443951

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LEARN ABOUT OSF1

insque

insque(9r)																insque(9r)

NAME

       insque, remque - General: Add or remove an element from the queue

SYNOPSIS

       struct generic_qheader {
			       struct generic_qheader *q_forw;
			       struct generic_qheader *q_back;
			      };

       int insque(
	       struct generic_qheader *elem,
	       struct generic_qheader *pred ); int remque(
	       struct generic_qheader *elem );

ARGUMENTS

       Specifies the address of the queue header that contains the element to be manipulated.  Specifies the address of the queue header that con-
       tains the element to precede the one specified by elem in the queue.

DESCRIPTION

       The insque routine adds the element that the elem argument specifies to the queue. The routine inserts elem in the next position after pred
       in the queue.

       The remque routine removes the element that the elem argument specifies from the queue it is currently in.

       Queues  are  built  from  doubly  linked  lists. Each element is linked into the queue through a queue header. All queue headers are of the
       generic form struct generic_qheader. A given element may have multiple queue headers. This allows each element to be simultaneously  linked
       onto multiple queues.

       Any  driver routine that manipulates these queues must call an appropriate spl routine to ensure that the spl level is high enough to block
       out any interrupts for other kernel modules that may access these queues.

RETURN VALUES

       None

SEE ALSO

       Routines: spl(9r)

																	insque(9r)