#include <stdlib.h>
#include "Cache.h"

CacheType::CacheType ()
{
}

CacheType::~CacheType ()
{
    for (unsigned int i = 0; i < _cache_elements.size (); i++) {
        if (_cache_elements [i].freeme) free (_cache_elements [i].values);
    }
    _cache_elements.clear ();
}

void
CacheType::FreeCacheElement (int which_element)
{
    if (_cache_elements [which_element].freeme) 
        free (_cache_elements [which_element].values);
    _cache_elements.erase (_cache_elements.begin () + which_element);
}

void 
CacheType::AddToCache (void *vidf_ptr, VIDF_DEFS what, SDDAS_SHORT which, void *values, bool freeme)
{
    cache_element c;
    c.vidf_ptr = vidf_ptr;
    c.what = what;
    c.which = which;
    c.values = values;
    c.freeme = freeme;
    _cache_elements.push_back (c);
}

void *
CacheType::GetFromCache (void *vidf_ptr, VIDF_DEFS what, SDDAS_SHORT which)
{ 
    unsigned int i;

    for (i = 0; i < _cache_elements.size (); i++) {
        if ((_cache_elements [i].vidf_ptr == vidf_ptr) && 
            (_cache_elements [i].what == what) && 
            (_cache_elements [i].which == which)) break;
    }

    if (i == _cache_elements.size ()) return NULL;
        else return _cache_elements [i].values;
}