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#include "darray.h"
#include "debug.h"
DArray::DArray(size_t data_size, size_t init_size)
{
int i;
if (init_size <= 0)
{
goto error;
}
this->_max = init_size;
this->data = (void **)malloc(init_size*sizeof(void *));
this->end = 0;
//this->size = data_size;
this->_expand = DEFAULT_EXPAND_RATE;
error:;
}
DArray::~DArray()
{
}
int DArray::push(void *val)
{
if (this->data[this->end] != NULL)
{
ENL();
}
this->data[this->end] = val;
this->end++;
if (this->end > this->_max)
{
return this->expand();
}
return 0;
}
int DArray::expand()
{
size_t old_max = this->_max;
if (this->resize(this->_max + DEFAULT_EXPAND_RATE))
{
goto error;
}
memset(this->data + old_max, 0, this->_expand+1);
return 0;
error:
ENL();
return -1;
}
int DArray::resize(size_t size)
{
int i = 0;
void *data = NULL;
if (size < 1)
{
ENL();
goto error;
}
if (size < this->_max)
{
i = this->_max;
do
{
if (this->data[i-1] != NULL)
{
free(this->data[i-1]);//??? is there is some data then free it?
this->data[i-1] = NULL;
}
i -= 1;
} while (i-1 == size);
}
this->_max = size;
data = (void **)realloc(this->data, this->_max * sizeof(void*));
if (data == NULL)
{
ENL();
goto error;
}
this->data = (void **)data;
return 0;
error:
ERROR("\n");
return -1;
}
int DArray::set(int idx, void *val)
{
if (idx > this->_max)
{
ENL();
return -1;
}
if (idx>this->end)
{
this->end = idx;
}
this->data[idx] = val;
return 0;
}
void* DArray::get(int idx)
{
if (idx<0)
{
return NULL;
}
if (idx>=this->end)
{
return NULL; //???
}
return this->data[idx];
}
int DArray::count()
{
return this->end;
}
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