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thread-safety.md

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title Thread Safety
sidebar_position 10
id thread_safety
license Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Apache Fory™ C# provides two runtime forms with different threading guarantees.

Fory (Single-Threaded Runtime)

Fory is optimized for single-threaded reuse and must not be used concurrently by multiple threads.

Fory fory = Fory.Builder().Build();

Use one Fory instance per thread when managing thread affinity explicitly.

ThreadSafeFory (Concurrent Wrapper)

ThreadSafeFory wraps one Fory instance per thread and exposes thread-safe APIs.

using Apache.Fory;

using ThreadSafeFory fory = Fory.Builder()
    .Compatible(true)
    .TrackRef(true)
    .BuildThreadSafe();

fory.Register<MyType>(100);

Parallel.For(0, 64, i =>
{
    byte[] payload = fory.Serialize(i);
    int decoded = fory.Deserialize<int>(payload);
});

Registration Behavior

  • ThreadSafeFory.Register(...) stores registrations centrally.
  • Existing per-thread runtimes are updated.
  • New threads receive all previous registrations automatically.

Disposal

ThreadSafeFory implements IDisposable and should be disposed when no longer needed.

using ThreadSafeFory fory = Fory.Builder().BuildThreadSafe();

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