93 lines
1.9 KiB
C
93 lines
1.9 KiB
C
|
#include "capwap.h"
|
||
|
#include "capwap_array.h"
|
||
|
|
||
|
/* */
|
||
|
struct capwap_array* capwap_array_create(unsigned short itemsize, unsigned long initcount) {
|
||
|
struct capwap_array* array;
|
||
|
|
||
|
ASSERT(itemsize > 0);
|
||
|
|
||
|
array = (struct capwap_array*)capwap_alloc(sizeof(struct capwap_array));
|
||
|
if (!array) {
|
||
|
capwap_outofmemory();
|
||
|
}
|
||
|
|
||
|
memset(array, 0, sizeof(struct capwap_array));
|
||
|
array->itemsize = itemsize;
|
||
|
if (initcount > 0) {
|
||
|
capwap_array_resize(array, initcount);
|
||
|
}
|
||
|
|
||
|
return array;
|
||
|
}
|
||
|
|
||
|
/* */
|
||
|
struct capwap_array* capwap_array_clone(struct capwap_array* array) {
|
||
|
unsigned long i;
|
||
|
struct capwap_array* clone;
|
||
|
|
||
|
ASSERT (array != NULL);
|
||
|
|
||
|
/* Clone array e items */
|
||
|
clone = capwap_array_create(array->itemsize, array->count);
|
||
|
for (i = 0; i < array->count; i++) {
|
||
|
memcpy(capwap_array_get_item_pointer(clone, i), capwap_array_get_item_pointer(array, i), array->itemsize);
|
||
|
}
|
||
|
|
||
|
return clone;
|
||
|
}
|
||
|
|
||
|
/* */
|
||
|
void capwap_array_free(struct capwap_array* array) {
|
||
|
ASSERT(array != NULL);
|
||
|
|
||
|
if (array->buffer) {
|
||
|
capwap_free(array->buffer);
|
||
|
}
|
||
|
|
||
|
capwap_free(array);
|
||
|
}
|
||
|
|
||
|
/* */
|
||
|
void* capwap_array_get_item_pointer(struct capwap_array* array, unsigned long pos) {
|
||
|
ASSERT(array != NULL);
|
||
|
ASSERT((array->count == 0) || (array->buffer != NULL));
|
||
|
|
||
|
if (pos >= array->count) {
|
||
|
capwap_array_resize(array, pos + 1);
|
||
|
}
|
||
|
|
||
|
return (void*)(((char*)array->buffer) + array->itemsize * pos);
|
||
|
}
|
||
|
|
||
|
/* */
|
||
|
void capwap_array_resize(struct capwap_array* array, unsigned long count) {
|
||
|
void* newbuffer = NULL;
|
||
|
|
||
|
ASSERT(array != NULL);
|
||
|
ASSERT(array->itemsize > 0);
|
||
|
|
||
|
if (array->count == count) {
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
if (count > 0) {
|
||
|
newbuffer = capwap_alloc(array->itemsize * count);
|
||
|
if (!newbuffer) {
|
||
|
capwap_outofmemory();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (array->buffer) {
|
||
|
if (newbuffer != NULL) {
|
||
|
memcpy(newbuffer, array->buffer, array->itemsize * min(array->count, count));
|
||
|
}
|
||
|
|
||
|
capwap_free(array->buffer);
|
||
|
}
|
||
|
|
||
|
array->buffer = newbuffer;
|
||
|
array->count = count;
|
||
|
}
|
||
|
|