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(svn r20685) -Codechange: Make BinaryHeap_Clear() a method.

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alberth
2010-08-29 13:38:43 +00:00
parent b06cedc905
commit 2c962548e5
3 changed files with 18 additions and 22 deletions
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28
src/pathfinder/npf/queue.cpp
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@@ -30,14 +30,19 @@
/** Temporary duplicate of #BIN_HEAP_ARR, except it uses 'this' instead of 'q'. */
#define THISBIN_HEAP_ARR(i) this->elements[((i) - 1) >> BINARY_HEAP_BLOCKSIZE_BITS][((i) - 1) & BINARY_HEAP_BLOCKSIZE_MASK]
static void BinaryHeap_Clear(Queue *q, bool free_values)
/**
* Clears the queue, by removing all values from it. Its state is
* effectively reset. If free_items is true, each of the items cleared
* in this way are free()'d.
*/
void Queue::Clear(bool free_values)
{
/* Free all items if needed and free all but the first blocks of memory */
uint i;
uint j;
for (i = 0; i < q->blocks; i++) {
if (q->elements[i] == NULL) {
for (i = 0; i < this->blocks; i++) {
if (this->elements[i] == NULL) {
/* No more allocated blocks */
break;
}
@@ -45,21 +50,21 @@ static void BinaryHeap_Clear(Queue *q, bool free_values)
if (free_values) {
for (j = 0; j < (1 << BINARY_HEAP_BLOCKSIZE_BITS); j++) {
/* For every element in the block */
if ((q->size >> BINARY_HEAP_BLOCKSIZE_BITS) == i &&
(q->size & BINARY_HEAP_BLOCKSIZE_MASK) == j) {
if ((this->size >> BINARY_HEAP_BLOCKSIZE_BITS) == i &&
(this->size & BINARY_HEAP_BLOCKSIZE_MASK) == j) {
break; // We're past the last element
}
free(q->elements[i][j].item);
free(this->elements[i][j].item);
}
}
if (i != 0) {
/* Leave the first block of memory alone */
free(q->elements[i]);
q->elements[i] = NULL;
free(this->elements[i]);
this->elements[i] = NULL;
}
}
q->size = 0;
q->blocks = 1;
this->size = 0;
this->blocks = 1;
}
/**
@@ -71,7 +76,7 @@ void Queue::Free(bool free_values)
{
uint i;
this->clear(this, free_values);
this->Clear(free_values);
for (i = 0; i < this->blocks; i++) {
if (this->elements[i] == NULL) break;
free(this->elements[i]);
@@ -223,7 +228,6 @@ void *Queue::Pop()
void init_BinaryHeap(Queue *q, uint max_size)
{
assert(q != NULL);
q->clear = BinaryHeap_Clear;
q->max_size = max_size;
q->size = 0;
/* We malloc memory in block of BINARY_HEAP_BLOCKSIZE