ASCO 0.0.1

Basic asynchronous environment

• Peer coroutines: Crated by scheduler and work as partner with each other.
• Inline coroutines (Non-peer coroutines): Calling the callees and returning to caller with symmetrical transformation.
• Abortable coroutines: future<T>::abort() function with recover semantic. The aborted coroutine must recover the affected object to the state before the coroutine started.
• Coroutine local variables: Variables with its lifetime spreading with the coroutine calling chain.

Synchronization primitives

• Semaphore