internal void AddEvent(string eventType, Value128 id, object data)
{
_eventsRaised.Add(eventType, id);
if (data != null)
{
_eventData[id] = data;
}
}
public void Begin()
{
nextIdHash = default;
_count = default;
_instructions?.Clear();
_target?.Begin();
CalledLayout = default;
}
public static Value128 MurmurHash3(ulong key, Value128 seed = default)
{
const int len = 4;
var h1 = seed.v1;
var h2 = seed.v2;
var c1 = 0x87c37b91114253d5u;
var c2 = 0x4cf5ad432745937fu;
//----------
// tail
{
ulong k1 = 0;
k1 = key;
k1 *= c1;
k1 = Rotl64(k1, 31);
k1 *= c2;
h1 ^= k1;
}
//----------
// finalization
h1 ^= len;
h2 ^= len;
h1 += h2;
h2 += h1;
h1 = Fmix64(h1);
h2 = Fmix64(h2);
h1 += h2;
h2 += h1;
var retval = new Value128();
retval.v1 = h1;
retval.v2 = h2;
return(retval);
}
internal bool OnEvent(string eventType, Value128 id, out object data)
{
var contains = _eventsRaised.Contains(eventType, id);
if (contains)
{
_eventsRaised.Remove(eventType, id);
_eventsHandled.Remove(id, eventType);
data = _eventData[id];
if (data != null)
{
_eventData.Remove(id);
}
return(true);
}
_eventsHandled.Add(id, eventType);
data = default;
return(false);
}
public static Value128 MurmurHash3(StringBuilder key, Value128 seed = default)
{
var len = key.Length * 2; // chars are 16 bits
var nblocks = key.Length / 8;
var h1 = seed.v1;
var h2 = seed.v2;
var c1 = 0x87c37b91114253d5u;
var c2 = 0x4cf5ad432745937fu;
//----------
// body
for (var i = 0; i < nblocks; i++)
{
// Get 128 bits from key
ulong k1 = key[i * 8];
k1 |= (ulong)key[i * 8 + 1] << 16;
k1 |= (ulong)key[i * 8 + 2] << 32;
k1 |= (ulong)key[i * 8 + 3] << 48;
ulong k2 = key[i * 8 + 4];
k2 |= (ulong)key[i * 8 + 5] << 16;
k2 |= (ulong)key[i * 8 + 6] << 32;
k2 |= (ulong)key[i * 8 + 7] << 48;
k1 *= c1;
k1 = Rotl64(k1, 31);
k1 *= c2;
h1 ^= k1;
h1 = Rotl64(h1, 27);
h1 += h2;
h1 = h1 * 5 + 0x52dce729;
k2 *= c2;
k2 = Rotl64(k2, 33);
k2 *= c1;
h2 ^= k2;
h2 = Rotl64(h2, 31);
h2 += h1;
h2 = h2 * 5 + 0x38495ab5;
}
//----------
// tail
{
ulong k1 = 0;
ulong k2 = 0;
var offset = nblocks * 8;
switch (key.Length & 7) // len & 15
{
case 7:
k2 |= (ulong)key[offset + 6] << 32;
goto case 6;
case 6:
k2 |= (ulong)key[offset + 5] << 16;
goto case 5;
case 5:
k2 |= (ulong)key[offset + 4] << 0;
k2 *= c2;
k2 = Rotl64(k2, 33);
k2 *= c1;
h2 ^= k2;
goto case 4;
case 4:
k1 |= (ulong)key[offset + 3] << 48;
goto case 3;
case 3:
k1 |= (ulong)key[offset + 2] << 32;
goto case 2;
case 2:
k1 |= (ulong)key[offset + 1] << 16;
goto case 1;
case 1:
k1 |= (ulong)key[offset + 0] << 0;
k1 *= c1;
k1 = Rotl64(k1, 31);
k1 *= c2;
h1 ^= k1;
break;
}
}
//----------
// finalization
h1 ^= (ulong)len;
h2 ^= (ulong)len;
h1 += h2;
h2 += h1;
h1 = Fmix64(h1);
h2 = Fmix64(h2);
h1 += h2;
h2 += h1;
var retval = new Value128();
retval.v1 = h1;
retval.v2 = h2;
return(retval);
}
/// <summary>
/// <see href="https://en.wikipedia.org/wiki/MurmurHash" />
/// </summary>
public static Value128 MurmurHash3(byte[] key, Value128 seed = default)
{
var len = key.Length;
var nblocks = len / 16;
var h1 = seed.v1;
var h2 = seed.v2;
var c1 = 0x87c37b91114253d5u;
var c2 = 0x4cf5ad432745937fu;
//----------
// body
for (var i = 0; i < nblocks; i++)
{
// Get 128 bits from key
ulong k1 = key[i * 16];
k1 |= (ulong)key[i * 16 + 1] << 8;
k1 |= (ulong)key[i * 16 + 2] << 16;
k1 |= (ulong)key[i * 16 + 3] << 24;
k1 |= (ulong)key[i * 16 + 4] << 32;
k1 |= (ulong)key[i * 16 + 5] << 40;
k1 |= (ulong)key[i * 16 + 6] << 48;
k1 |= (ulong)key[i * 16 + 7] << 56;
ulong k2 = key[i * 16 + 8];
k2 |= (ulong)key[i * 16 + 9] << 8;
k2 |= (ulong)key[i * 16 + 10] << 16;
k2 |= (ulong)key[i * 16 + 11] << 24;
k2 |= (ulong)key[i * 16 + 12] << 32;
k2 |= (ulong)key[i * 16 + 13] << 40;
k2 |= (ulong)key[i * 16 + 14] << 48;
k2 |= (ulong)key[i * 16 + 15] << 56;
k1 *= c1;
k1 = Rotl64(k1, 31);
k1 *= c2;
h1 ^= k1;
h1 = Rotl64(h1, 27);
h1 += h2;
h1 = h1 * 5 + 0x52dce729;
k2 *= c2;
k2 = Rotl64(k2, 33);
k2 *= c1;
h2 ^= k2;
h2 = Rotl64(h2, 31);
h2 += h1;
h2 = h2 * 5 + 0x38495ab5;
}
//----------
// tail
{
ulong k1 = 0;
ulong k2 = 0;
var offset = nblocks * 16;
switch (len & ((1u << 4) - 1)) // len & 15
{
case 15:
k2 |= (ulong)key[offset + 14] << 48;
goto case 14;
case 14:
k2 |= (ulong)key[offset + 13] << 40;
goto case 13;
case 13:
k2 |= (ulong)key[offset + 12] << 32;
goto case 12;
case 12:
k2 |= (ulong)key[offset + 11] << 24;
goto case 11;
case 11:
k2 |= (ulong)key[offset + 10] << 16;
goto case 10;
case 10:
k2 |= (ulong)key[offset + 9] << 8;
goto case 9;
case 9:
k2 ^= (ulong)key[8] << 0;
k2 *= c2;
k2 = Rotl64(k2, 33);
k2 *= c1;
h2 ^= k2;
goto case 8;
case 8:
k1 |= (ulong)key[offset + 7] << 56;
goto case 7;
case 7:
k1 |= (ulong)key[offset + 6] << 48;
goto case 6;
case 6:
k1 |= (ulong)key[offset + 5] << 40;
goto case 5;
case 5:
k1 |= (ulong)key[offset + 4] << 32;
goto case 4;
case 4:
k1 |= (ulong)key[offset + 3] << 24;
goto case 3;
case 3:
k1 |= (ulong)key[offset + 2] << 16;
goto case 2;
case 2:
k1 |= (ulong)key[offset + 1] << 8;
goto case 1;
case 1:
k1 ^= (ulong)key[0] << 0;
k1 *= c1;
k1 = Rotl64(k1, 31);
k1 *= c2;
h1 ^= k1;
break;
}
}
//----------
// finalization
h1 ^= (ulong)len;
h2 ^= (ulong)len;
h1 += h2;
h2 += h1;
h1 = Fmix64(h1);
h2 = Fmix64(h2);
h1 += h2;
h2 += h1;
var retval = new Value128();
retval.v1 = h1;
retval.v2 = h2;
return(retval);
}
public Value128 NextId(int i)
{
nextIdHash = Hashing.MurmurHash3((ulong)i, nextIdHash) ^ nextIdHash;
return(nextIdHash);
}
public Value128 NextId(StringBuilder id)
{
nextIdHash = Hashing.MurmurHash3(id, nextIdHash) ^ nextIdHash;
return(nextIdHash);
}
public Value128 NextId(string id = null, [CallerMemberName] string callerMemberName = null)
{
nextIdHash = Hashing.MurmurHash3(id ?? $"{callerMemberName}{_count++}", nextIdHash) ^ nextIdHash;
return(nextIdHash);
}
internal IEnumerable <string> GetEventsFor(Value128 id)
{
return(_eventsHandled.TryGetValue(id, out var events) ? events : NoEvents);
}
