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using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics;
namespace ARMeilleure.Diagnostics
{
static class Symbols
{
private readonly struct RangedSymbol
{
public readonly ulong Start;
public readonly ulong End;
public readonly ulong ElementSize;
public readonly string Name;
public RangedSymbol(ulong start, ulong end, ulong elemSize, string name)
{
Start = start;
End = end;
ElementSize = elemSize;
Name = name;
}
}
private static readonly ConcurrentDictionary<ulong, string> _symbols;
private static readonly List<RangedSymbol> _rangedSymbols;
static Symbols()
{
_symbols = new ConcurrentDictionary<ulong, string>();
_rangedSymbols = new List<RangedSymbol>();
}
public static string Get(ulong address)
{
string result;
if (_symbols.TryGetValue(address, out result))
{
return result;
}
lock (_rangedSymbols)
{
foreach (RangedSymbol symbol in _rangedSymbols)
{
if (address >= symbol.Start && address <= symbol.End)
{
ulong diff = address - symbol.Start;
ulong rem = diff % symbol.ElementSize;
result = symbol.Name + "_" + diff / symbol.ElementSize;
if (rem != 0)
{
result += "+" + rem;
}
_symbols.TryAdd(address, result);
return result;
}
}
}
return null;
}
[Conditional("M_DEBUG")]
public static void Add(ulong address, string name)
{
_symbols.TryAdd(address, name);
}
[Conditional("M_DEBUG")]
public static void Add(ulong address, ulong size, ulong elemSize, string name)
{
lock (_rangedSymbols)
{
_rangedSymbols.Add(new RangedSymbol(address, address + size, elemSize, name));
}
}
}
}
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