/// <summary>
/// Performs binary search of an address on the list.
/// </summary>
/// <param name="address">Address to search</param>
/// <returns>Index of the item, or complement of the index of the nearest item with lower value</returns>
private int BinarySearch(ulong address)
{
int left = 0;
int right = _items.Count - 1;
while (left <= right)
{
int range = right - left;
int middle = left + (range >> 1);
CounterEntry item = _items[middle];
if (item.Address == address)
{
return(middle);
}
if (address < item.Address)
{
right = middle - 1;
}
else
{
left = middle + 1;
}
}
return(~left);
}
public async Task <int> GetCounterAsync(
string address,
string head,
string rpcNodeUri)
{
var currentCounter = await GetCounterFromRpcAsync(address, head, rpcNodeUri)
.ConfigureAwait(false);
// update offline counter if need
lock (_offlineCounters)
{
if (_offlineCounters.TryGetValue(address, out var offlineCounterEntry))
{
if (offlineCounterEntry.Value < currentCounter ||
DateTimeOffset.UtcNow > offlineCounterEntry.Expiration)
{
_offlineCounters[address] = new CounterEntry
{
Value = currentCounter,
Expiration = DateTimeOffset.UtcNow + ExpirationPeriod
};
}
}
else
{
_offlineCounters[address] = new CounterEntry
{
Value = currentCounter,
Expiration = DateTimeOffset.UtcNow + ExpirationPeriod
};
}
}
return(++currentCounter);
}
public async Task <int> GetCounter(
Atomex.Tezos tezos,
string address,
JObject head,
bool ignoreCache = false)
{
var rpc = new Rpc(tezos.RpcNodeUri);
var account = await rpc
.GetAccountForBlock(head["hash"].ToString(), address)
.ConfigureAwait(false);
var counter = int.Parse(account["counter"].ToString());
lock (_syncRoot)
{
if (_counters.TryGetValue(address, out var offlineCounter))
{
if (!ignoreCache &&
offlineCounter.Value > counter &&
DateTime.UtcNow - offlineCounter.LastUpdatedTimeUtc <= ExpirationTimeOut)
{
return(++offlineCounter.Value);
}
else
{
//++counter;
_counters[address] = new CounterEntry
{
Value = ignoreCache ? counter : counter + 1,
LastUpdatedTimeUtc = DateTime.UtcNow
};
return(++counter);
}
}
else
{
//++counter;
_counters.Add(address, new CounterEntry
{
Value = ignoreCache ? counter : counter + 1,
LastUpdatedTimeUtc = DateTime.UtcNow
});
return(++counter);
}
}
}
/// <summary>
/// Adds a new counter to the counter cache, or updates a existing one.
/// </summary>
/// <param name="gpuVa">GPU virtual address where the counter will be written in memory</param>
public void AddOrUpdate(ulong gpuVa, ICounterEvent evt)
{
int index = BinarySearch(gpuVa);
CounterEntry entry = new CounterEntry(gpuVa, evt);
if (index < 0)
{
_items.Insert(~index, entry);
}
else
{
_items[index] = entry;
}
}
private static unsafe long AddToValue(CounterEntry* counterEntry, long addend)
{
if (IsMisaligned(counterEntry))
{
CounterEntryMisaligned* misalignedPtr = (CounterEntryMisaligned*) counterEntry;
ulong num = (ulong) misalignedPtr->Value_hi;
num = num << 0x20;
num |= (ulong) misalignedPtr->Value_lo;
num += (ulong) addend;
misalignedPtr->Value_hi = (int) (num >> 0x20);
misalignedPtr->Value_lo = (int) (num & 0xffffffffL);
return (long) num;
}
return Interlocked.Add(ref counterEntry.Value, addend);
}
private unsafe long GetPerfCounterValue(ClrObject perfCounter)
{
if (perfCounter == null)
{
return(0);
}
ulong entryPoint = perfCounter.ReadField <ulong>("counterEntryPointer");
int v = sizeof(CounterEntry);
Span <byte> buffer = new byte[v];
int read = Target.DataReader.Read(entryPoint, buffer);
fixed(byte *ptr = buffer)
{
CounterEntry counterEntry = *(CounterEntry *)ptr;
return(counterEntry.Value);
}
}
public async Task <int> GetOfflineCounterAsync(
string address,
string head,
string rpcNodeUri,
int numberOfCounters = 1)
{
var currentCounter = await GetCounterFromRpcAsync(address, head, rpcNodeUri)
.ConfigureAwait(false);
lock (_offlineCounters)
{
if (_offlineCounters.TryGetValue(address, out var offlineCounterEntry))
{
// update offline counter
var offlineCounter = offlineCounterEntry.Value <currentCounter || DateTimeOffset.UtcNow> offlineCounterEntry.Expiration
? currentCounter
: offlineCounterEntry.Value;
_offlineCounters[address] = new CounterEntry
{
Value = offlineCounter + numberOfCounters,
Expiration = DateTimeOffset.UtcNow + ExpirationPeriod
};
return(++offlineCounter);
}
else
{
_offlineCounters[address] = new CounterEntry
{
Value = currentCounter + numberOfCounters,
Expiration = DateTimeOffset.UtcNow + ExpirationPeriod
};
return(++currentCounter);
}
}
}
private static unsafe long GetValue(CounterEntry* counterEntry)
{
if (IsMisaligned(counterEntry))
{
CounterEntryMisaligned* misalignedPtr = (CounterEntryMisaligned*) counterEntry;
ulong num = (ulong) misalignedPtr->Value_hi;
num = num << 0x20;
num |= (ulong) misalignedPtr->Value_lo;
return (long) num;
}
return counterEntry.Value;
}
private unsafe bool FindCounter(int counterNameHashCode, string counterName, InstanceEntry* instancePointer, CounterEntry** returnCounterPointerReference) {
CounterEntry* currentCounterPointer = (CounterEntry*)(ResolveOffset(instancePointer->FirstCounterOffset, CounterEntrySize));
CounterEntry* previousCounterPointer = currentCounterPointer;
for(;;) {
if (currentCounterPointer->CounterNameHashCode == counterNameHashCode) {
if (StringEquals(counterName, currentCounterPointer->CounterNameOffset)) {
*returnCounterPointerReference = currentCounterPointer;
return true;
}
}
previousCounterPointer = currentCounterPointer;
if (currentCounterPointer->NextCounterOffset != 0)
currentCounterPointer = (CounterEntry*)(ResolveOffset(currentCounterPointer->NextCounterOffset, CounterEntrySize));
else {
*returnCounterPointerReference = previousCounterPointer;
return false;
}
}
}
private unsafe int CreateCounter(CounterEntry* lastCounterPointer,
int counterNameHashCode, string counterName) {
int counterNameLength = (counterName.Length + 1) * 2;
int totalSize = sizeof(CounterEntry) + counterNameLength;
int alignmentAdjustment;
int freeMemoryOffset;
Debug.Assert(!categoryData.UseUniqueSharedMemory, "We should never be calling CreateCounter in the unique shared memory");
freeMemoryOffset = CalculateAndAllocateMemory(totalSize, out alignmentAdjustment);
freeMemoryOffset += alignmentAdjustment;
long nextPtr = ResolveOffset(freeMemoryOffset, totalSize);
CounterEntry* newCounterEntryPointer = (CounterEntry*) nextPtr;
nextPtr += sizeof(CounterEntry);
newCounterEntryPointer->CounterNameOffset = (int) (nextPtr - baseAddress);
newCounterEntryPointer->CounterNameHashCode = counterNameHashCode;
newCounterEntryPointer->NextCounterOffset = 0;
SetValue(newCounterEntryPointer, 0);
SafeMarshalCopy(counterName, (IntPtr)nextPtr);
Debug.Assert(nextPtr + counterNameLength - baseAddress == freeMemoryOffset + totalSize, "We should have used all of the space we requested at this point");
lastCounterPointer->NextCounterOffset = (int) ((long) newCounterEntryPointer - baseAddress);
return freeMemoryOffset;
}
private static unsafe bool IsMisaligned(CounterEntry* counterEntry) {
return (( (Int64)counterEntry & 0x7) != 0);
}
private static unsafe void SetValue(CounterEntry* counterEntry, long value) {
if (IsMisaligned(counterEntry)) {
CounterEntryMisaligned* entry = (CounterEntryMisaligned*) counterEntry;
entry->Value_lo = (int) (value & 0xffffffff);
entry->Value_hi = (int) (value >> 32);
}
else
counterEntry->Value = value;
}
private static unsafe long IncrementUnaligned(CounterEntry* counterEntry) {
if (IsMisaligned(counterEntry))
return AddToValue(counterEntry, 1);
else
return Interlocked.Increment(ref counterEntry->Value);
}
private static unsafe long GetValue(CounterEntry* counterEntry) {
if (IsMisaligned(counterEntry)) {
ulong value;
CounterEntryMisaligned* entry = (CounterEntryMisaligned*) counterEntry;
value = (uint)entry->Value_hi;
value <<= 32;
value |= (uint)entry->Value_lo;
return (long) value;
}
else
return counterEntry->Value;
}
private static unsafe long AddToValue(CounterEntry* counterEntry, long addend) {
// Called while holding a lock - shouldn't have to worry about
// reading misaligned data & getting old vs. new parts of an Int64.
if (IsMisaligned(counterEntry)) {
ulong newvalue;
CounterEntryMisaligned* entry = (CounterEntryMisaligned*) counterEntry;
newvalue = (uint)entry->Value_hi;
newvalue <<= 32;
newvalue |= (uint)entry->Value_lo;
newvalue = (ulong) ((long) newvalue + addend);
entry->Value_hi = (int) (newvalue >> 32);
entry->Value_lo = (int) (newvalue & 0xffffffff);
return (long) newvalue;
}
else
return Interlocked.Add(ref counterEntry->Value, addend);
}
private static unsafe bool IsMisaligned(CounterEntry* counterEntry)
{
return ((((ulong) counterEntry) & 7L) != 0L);
}
private static unsafe void SetValue(CounterEntry* counterEntry, long value)
{
if (IsMisaligned(counterEntry))
{
CounterEntryMisaligned* misalignedPtr = (CounterEntryMisaligned*) counterEntry;
misalignedPtr->Value_lo = (int) (((ulong) value) & 0xffffffffL);
misalignedPtr->Value_hi = (int) (value >> 0x20);
}
else
{
counterEntry.Value = value;
}
}
private unsafe bool FindCounter(int counterNameHashCode, string counterName, InstanceEntry* instancePointer, CounterEntry** returnCounterPointerReference)
{
CounterEntry* entryPtr = (CounterEntry*) this.ResolveOffset(instancePointer.FirstCounterOffset, CounterEntrySize);
CounterEntry* entryPtr2 = entryPtr;
Label_0015:
if ((entryPtr->CounterNameHashCode == counterNameHashCode) && this.StringEquals(counterName, entryPtr->CounterNameOffset))
{
*((IntPtr*) returnCounterPointerReference) = entryPtr;
return true;
}
entryPtr2 = entryPtr;
if (entryPtr->NextCounterOffset != 0)
{
entryPtr = (CounterEntry*) this.ResolveOffset(entryPtr->NextCounterOffset, CounterEntrySize);
goto Label_0015;
}
*((IntPtr*) returnCounterPointerReference) = entryPtr2;
return false;
}
private static unsafe long DecrementUnaligned(CounterEntry* counterEntry)
{
if (IsMisaligned(counterEntry))
{
return AddToValue(counterEntry, -1L);
}
return Interlocked.Decrement(ref counterEntry.Value);
}
private unsafe int CreateCounter(CounterEntry* lastCounterPointer, int counterNameHashCode, string counterName)
{
int num3;
int num = (counterName.Length + 1) * 2;
int totalSize = sizeof(CounterEntry) + num;
int offset = this.CalculateAndAllocateMemory(totalSize, out num3) + num3;
long num5 = this.ResolveOffset(offset, totalSize);
CounterEntry* counterEntry = (CounterEntry*) num5;
num5 += sizeof(CounterEntry);
counterEntry->CounterNameOffset = (int) (num5 - this.baseAddress);
counterEntry->CounterNameHashCode = counterNameHashCode;
counterEntry->NextCounterOffset = 0;
SetValue(counterEntry, 0L);
SafeMarshalCopy(counterName, (IntPtr) num5);
lastCounterPointer.NextCounterOffset = (int) (((ulong) counterEntry) - this.baseAddress);
return offset;
}
