95 lines
3.5 KiB
C++
95 lines
3.5 KiB
C++
|
#include "JSONChildren.h"
|
||
|
|
#include "JSONNode.h"
|
||
|
|
|
||
|
|
/*
|
||
|
|
* reserves a certain number of bytes, in memory saving mode it creates a special
|
||
|
|
* type of child container that will not autoshrink
|
||
|
|
*/
|
||
|
|
void jsonChildren::reserve2(jsonChildren *& mine, json_index_t amount) json_nothrow {
|
||
|
|
if (mine -> array != 0){
|
||
|
|
if (mine -> mycapacity < amount){
|
||
|
|
mine -> inc(amount - mine -> mycapacity);
|
||
|
|
#ifdef JSON_LESS_MEMORY
|
||
|
|
mine = jsonChildren_Reserved::newChildren_Reserved(mine, amount);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
mine -> reserve(amount);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void jsonChildren::inc(void) json_nothrow {
|
||
|
|
JSON_ASSERT(this != 0, JSON_TEXT("Children is null inc"));
|
||
|
|
if (json_unlikely(mysize == mycapacity)){ //it's full
|
||
|
|
if (json_unlikely(mycapacity == 0)){ //the array hasn't been created yet
|
||
|
|
JSON_ASSERT(!array, JSON_TEXT("Expanding a 0 capacity array, but not null"));
|
||
|
|
#ifdef JSON_LESS_MEMORY
|
||
|
|
array = json_malloc<JSONNode*>(1);
|
||
|
|
mycapacity = 1;
|
||
|
|
#else
|
||
|
|
array = json_malloc<JSONNode*>(8); //8 seems average for JSON, and it's only 64 bytes
|
||
|
|
mycapacity = 8;
|
||
|
|
#endif
|
||
|
|
} else {
|
||
|
|
#ifdef JSON_LESS_MEMORY
|
||
|
|
mycapacity += 1; //increment the size of the array
|
||
|
|
#else
|
||
|
|
mycapacity <<= 1; //double the size of the array
|
||
|
|
#endif
|
||
|
|
array = json_realloc<JSONNode*>(array, mycapacity);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void jsonChildren::inc(json_index_t amount) json_nothrow {
|
||
|
|
JSON_ASSERT(this != 0, JSON_TEXT("Children is null inc(amount)"));
|
||
|
|
if (json_unlikely(amount == 0)) return;
|
||
|
|
if (json_likely(mysize + amount >= mycapacity)){ //it's full
|
||
|
|
if (json_unlikely(mycapacity == 0)){ //the array hasn't been created yet
|
||
|
|
JSON_ASSERT(!array, JSON_TEXT("Expanding a 0 capacity array, but not null"));
|
||
|
|
#ifdef JSON_LESS_MEMORY
|
||
|
|
array = json_malloc<JSONNode*>(amount);
|
||
|
|
mycapacity = amount;
|
||
|
|
#else
|
||
|
|
array = json_malloc<JSONNode*>(amount > 8 ? amount : 8); //8 seems average for JSON, and it's only 64 bytes
|
||
|
|
mycapacity = amount > 8 ? amount : 8;
|
||
|
|
#endif
|
||
|
|
} else {
|
||
|
|
#ifdef JSON_LESS_MEMORY
|
||
|
|
mycapacity = mysize + amount; //increment the size of the array
|
||
|
|
#else
|
||
|
|
while(mysize + amount > mycapacity){
|
||
|
|
mycapacity <<= 1; //double the size of the array
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
array = json_realloc<JSONNode*>(array, mycapacity);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//actually deletes everything within the vector, this is safe to do on an empty or even a null array
|
||
|
|
void jsonChildren::deleteAll(void) json_nothrow {
|
||
|
|
JSON_ASSERT(this != 0, JSON_TEXT("Children is null deleteAll"));
|
||
|
|
json_foreach(this, runner){
|
||
|
|
JSON_ASSERT(*runner != JSON_TEXT('\0'), JSON_TEXT("a null pointer within the children"));
|
||
|
|
JSONNode::deleteJSONNode(*runner); //this is why I can't do forward declaration
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void jsonChildren::doerase(JSONNode ** position, json_index_t number) json_nothrow {
|
||
|
|
JSON_ASSERT(this != 0, JSON_TEXT("Children is null doerase"));
|
||
|
|
JSON_ASSERT(array != 0, JSON_TEXT("erasing something from a null array 2"));
|
||
|
|
JSON_ASSERT(position >= array, JSON_TEXT("position is beneath the start of the array 2"));
|
||
|
|
JSON_ASSERT(position + number <= array + mysize, JSON_TEXT("erasing out of bounds 2"));
|
||
|
|
if (position + number >= array + mysize){
|
||
|
|
mysize = (json_index_t)(position - array);
|
||
|
|
#ifndef JSON_ISO_STRICT
|
||
|
|
JSON_ASSERT((long long)position - (long long)array >= 0, JSON_TEXT("doing negative allocation"));
|
||
|
|
#endif
|
||
|
|
} else {
|
||
|
|
std::memmove(position, position + number, (mysize - (position - array) - number) * sizeof(JSONNode *));
|
||
|
|
mysize -= number;
|
||
|
|
}
|
||
|
|
}
|