/// <summary>
/// use to rebase current meta data to a newer memory address(affects reflexive,extended and data ref fields only)
/// </summary>
/// <param name="new_base">the new memory address to which the meta has to rebased</param>
public void Rebase_meta(int new_base)
{
//first rebase reflexive fields
foreach (int off in ref_reflexive)
{
int old_mem_addr = DATA_READ.ReadINT_LE(off + 4, data);
int new_mem_addr = new_base + (old_mem_addr - mem_off);
DATA_READ.WriteINT_LE(new_mem_addr, off + 4, data);
}
//then we rebase all the dataref fields
foreach (int off in ref_data)
{
int old_mem_addr = DATA_READ.ReadINT_LE(off + 4, data);
int new_mem_addr = new_base + (old_mem_addr - mem_off);
DATA_READ.WriteINT_LE(new_mem_addr, off + 4, data);
}
//we venture in extended meta if it is even concerned
if (list_extended != null)
{
//for extended meta stuff we are gonna first rebase the extended meta(s) first and set the offsets accordingly
//well extende meta are gonna follow meta one by one
int extended_new_base = new_base + size;
List <int> key_mems = list_extended.Keys.ToList <int>();
//Rebase extended meta
foreach (int temp_key in key_mems)
{
extended_meta temp_meta = list_extended[temp_key];
temp_meta.Rebase_meta(extended_new_base);
extended_new_base += temp_meta.Get_Total_size();
}
//now lets update the offsets with the newer values
List <int> extend_off = ref_extended.Keys.ToList <int>();
foreach (int temp_off in extend_off)
{
int extend_mem_addr = ref_extended[temp_off];
extended_meta temp_ext = list_extended[extend_mem_addr];
int new_mem_addr = temp_ext.Get_mem_addr();
DATA_READ.WriteINT_LE(new_mem_addr, temp_off + 4, data);
}
}
//update the base to which meta has been compiled
mem_off = new_base;
}
/// <summary>
/// Generates a full self dependent meta file(except tag refs)
/// </summary>
/// <returns></returns>
public byte[] Generate_meta_file()
{
byte[] ret = new byte[this.Get_Total_size()];
//we first copy the root meta data into it
DATA_READ.ArrayCpy(ret, data, 0x0, size);
//now we go for extended meta
List <int> extend_keys = list_extended.Keys.ToList <int>();
//here we go
foreach (int temp_key in extend_keys)
{
extended_meta temp_meta = list_extended[temp_key];
int start_off = temp_meta.Get_mem_addr() - mem_off;
DATA_READ.ArrayCpy(ret, temp_meta.Generate_meta_file(), start_off, temp_meta.Get_Total_size());
}
return(ret);
}