kernel/vm/VMArea.cpp

63 /*!	Returns whether any part of the given address range intersects with a wired
64 	range of this area.
71 			VMAreaWiredRange* range = it.Next();) {
72 		if (range->IntersectsWith(base, size))
80 /*!	Adds the given wired range to this area.
84 VMArea::Wire(VMAreaWiredRange* range)
86 	ASSERT(range->area == NULL);
88 	range->area = this;
89 	fWiredRanges.Add(range);
93 /*!	Removes the given wired range from this area.
98 VMArea::Unwire(VMAreaWiredRange* range)
100 	ASSERT(range->area == this);
102 	// remove the range
103 	range->area = NULL;
104 	fWiredRanges.Remove(range);
107 	for (VMAreaUnwiredWaiterList::Iterator it = range->waiters.GetIterator();
112 	range->waiters.MakeEmpty();
116 /*!	Removes a wired range from this area.
118 	Must balance a previous Wire() call. The first implicit range with matching
127 			VMAreaWiredRange* range = it.Next();) {
128 		if (range->implicit && range->base == base && range->size == size
129 				&& range->writable == writable) {
130 			Unwire(range);
131 			return range;
136 		"range", base, size, writable);
141 /*!	If the area has any wired range, the given waiter is added to the range and
149 	VMAreaWiredRange* range = fWiredRanges.Head();
150 	if (range == NULL)
159 	range->waiters.Add(waiter);
165 /*!	If the given address range intersect with a wired range of this area, the
166 	given waiter is added to the range and prepared for waiting.
168 	\param waiter The waiter structure that will be added to the wired range
169 		that intersects with the given address range.
170 	\param base The base of the address range to check.
171 	\param size The size of the address range to check.
181 			VMAreaWiredRange* range = it.Next();) {
182 		if ((flags & IGNORE_WRITE_WIRED_RANGES) != 0 && range->writable)
185 		if (range->IntersectsWith(base, size)) {
192 			range->waiters.Add(waiter);