This is a tracking issue for feature parity with std::sync. Not everything needs to be ported, but this is a full overview of what's in std::sync and async_std::sync.

@stjepang could you take a look and cross off what's not needed? I think we have most of it except maybe Barrier, Condvar, and Arc. Thanks!

Structs

• sync::Arc
• sync::Condvar
• sync::Mutex
• sync::Barrier
• sync::BarrierWaitResult
• sync::MutexGuard
• sync::Once
• sync::PoisonError (not required)
• sync::RwLock
• sync::RwLockReadGuard
• sync::RwLockWriteGuard
• sync::WaitTimeoutResult
• sync::Weak

Enums

• sync::TryLockError (not required)