document the requestline and close_connection attributes, use real booleans, and add tests (closes #23410)

Patch by Martin Panter.

Read process exit status to avoid the "Caught subprocess termination from
unknown pid" message.

methods

Really kill the child process, don't mock completly the Popen.kill() method.

This change fix memory leaks and reference leaks.

Merge JoinableQueue with Queue. To more closely match the standard Queue,
asyncio.Queue has "join" and "task_done". JoinableQueue is deleted.

Docstring for Queue.join shouldn't mention threads.

Restore JoinableQueue as a deprecated alias for Queue. To more closely match
the standard Queue, asyncio.Queue has "join" and "task_done".  JoinableQueue
remains as a deprecated alias for Queue to avoid needlessly breaking too much
code that depended on it.

Patch written by A. Jesse Jiryu Davis <jesse@mongodb.com>.

running

Patch by Yuyang Guo and Berker Peksag.

overflows.  Added few missed PyErr_NoMemory().

overflows.  Added few missed PyErr_NoMemory().

module.  Original patch by Claudiu Popa.

module.  Original patch by Claudiu Popa.

Detected and fixed by Serhiy.

Detected and fixed by Serhiy.

for both Python and C implementations.