Basic channel for values of type 'a

Current number of items in the channel

New channel.

• parameter max_size

  if specified, writers will block when trying to push into a channel

Close the channel. Calls to receive_exn will still succeed as long as items remain in the channel, until the channel is entirely drained; then they fail with Closed.

receive c receives an item from c. Suspends if the channel is empty but not closed. Returns None if the channel is empty and closed.

receive_exn c receives an item from the channel. Suspends if the channel is empty and non-closed.

• raises Closed

  if the channel is empty and closed

send c x sends x over the channel c. This might suspend the current fiber if the channel is full.

• raises Closed

  if c is closed.

ev_send c x is an event that sends x into c when there is room for it

ev_receive c is an event that resolves by receiving a value x from c when c is non empty