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Prelude

About this Module

Basics of Concurrency

Introduction Program vs Process vs Thread Concurrency vs Parallelism Cooperative vs Preemptive Multitasking Throughput vs Latency Synchronous vs Asynchronous I/O Bound vs CPU Bound Thread Safety Critical Section & Race Conditions Deadlock, Liveness & Reentrant Locks Mutex vs Semaphore Mutex vs Monitor Mesa vs Hoare Monitors Semaphore vs Monitor Global Interpreter Lock ... continued Amdahl's Law Moore's Law

Threading Module

Creating Threads Subclassing Thread Daemon Thread Lock RLock Condition Variables ... continued ... continued ... continued Semaphores Events Timer Barrier With Quiz 1 Quiz 2

Multiprocessing

Introduction Process Fork Spawn Forkserver Queues & Pipes Sharing State Locks & Reentrant Lock Barrier, Semaphore, Condition Variable Pool ... continued Manager ... continued ... continued SyncManager Working with Managers Namespace Quiz 1 Quiz 2 Quiz 3

Concurrent Package

Pool Executors Futures Miscellaneous Functions

Async.io

Sending and Receiving

Generator Based Coroutines

Native Coroutines

Mixing Native & Generator Based Coroutines

Chaining Coroutines

Web Crawler Example

Async Sleep Problem

Chat Server Example

Global Interpreter Lock

Introduction Single Thread Multiple Threads Multiple Processors Asynchronous Asynchronous with Executors

Practice Problems

Blocking Queue | Bounded Buffer | Consumer Producer Non-Blocking Queue Rate Limiting Using Token Bucket Filter ... continued Thread Safe Deferred Callback Implementing Semaphore Read Write Lock Unisex Bathroom Problem Implementing a Barrier Uber Ride Problem Dining Philosophers Barber Shop Asynchronous to Synchronous Problem Multithreaded Merge Sort

Conclusion

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Continues the discussion on coroutines.

You would realize that in the previous sections you were essentially dealing with coroutines when sending and receiving data. Similar to a generator, a coroutine executes in response to send() and next() calls. Simply creating a coroutine will not execute it. Let's revisit a coroutine example.

Coroutine Example

In Python 2.5 three APIs were added for generator objects, which allowed a generator to act as a coroutine which can collaborate with the caller, yielding ...