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* asyncio: BaseSelectorEventLoop uses directly the private _debug attributeVictor Stinner2015-02-041-5/+5
| | | | | Just try to be consistent: _debug was already used in some places, and always used in BaseProactorEventLoop.
* asyncio, Tulip issue 221: Fix doc of QueueEmpty and QueueFullVictor Stinner2015-02-031-2/+6
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* Issue #23353, asyncio: Workaround CPython bug #23353Victor Stinner2015-02-023-4/+23
| | | | | Don't use yield/yield-from in an except block of a generator. Store the exception and handle it outside the except block.
* Issue #23347, asyncio: send_signal(), terminate(), kill() don't check if theVictor Stinner2015-01-301-4/+3
| | | | | | | transport was closed. The check broken a Tulip example and this limitation is arbitrary. Check if _proc is None should be enough. Enhance also close(): do nothing when called the second time.
* Issue #23347, asyncio: Make BaseSubprocessTransport.wait() privateVictor Stinner2015-01-294-4/+4
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* asyncio: sync with TulipVictor Stinner2015-01-294-87/+83
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Issue #23347: send_signal(), kill() and terminate() methods of BaseSubprocessTransport now check if the transport was closed and if the process exited. Issue #23347: Refactor creation of subprocess transports. Changes on BaseSubprocessTransport: * Add a wait() method to wait until the child process exit * The constructor now accepts an optional waiter parameter. The _post_init() coroutine must not be called explicitly anymore. It makes subprocess transports closer to other transports, and it gives more freedom if we want later to change completly how subprocess transports are created. * close() now kills the process instead of kindly terminate it: the child process may ignore SIGTERM and continue to run. Call explicitly terminate() and wait() if you want to kindly terminate the child process. * close() now logs a warning in debug mode if the process is still running and needs to be killed * _make_subprocess_transport() is now fully asynchronous again: if the creation of the transport failed, wait asynchronously for the process eixt. Before the wait was synchronous. This change requires close() to *kill*, and not terminate, the child process. * Remove the _kill_wait() method, replaced with a more agressive close() method. It fixes _make_subprocess_transport() on error. BaseSubprocessTransport.close() calls the close() method of pipe transports, whereas _kill_wait() closed directly pipes of the subprocess.Popen object without unregistering file descriptors from the selector (which caused severe bugs). These changes simplifies the code of subprocess.py.
* Issue #23243, asyncio: Emit a ResourceWarning when an event loop or a transportVictor Stinner2015-01-298-5/+96
| | | | is not explicitly closed. Close also explicitly transports in test_sslproto.
* asyncio: sync with TulipVictor Stinner2015-01-293-13/+50
| | | | | | | | | * Cleanup gather(): use cancelled() method instead of using private Future attribute * Fix _UnixReadPipeTransport and _UnixWritePipeTransport. Only start reading when connection_made() has been called. * Issue #23333: Fix BaseSelectorEventLoop._accept_connection(). Close the transport on error. In debug mode, log errors using call_exception_handler()
* asyncio doc: document Protocol state machineVictor Stinner2015-01-291-0/+5
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* asyncio: sync with TulipVictor Stinner2015-01-291-3/+10
| | | | | | | | | | * _SelectorTransport constructor: extra parameter is now optional * Fix _SelectorDatagramTransport constructor. Only start reading after connection_made() has been called. * Fix _SelectorSslTransport.close(). Don't call protocol.connection_lost() if protocol.connection_made() was not called yet: if the SSL handshake failed or is still in progress. The close() method can be called if the creation of the connection is cancelled, by a timeout for example.
* asyncio: BaseSubprocessTransport._kill_wait() now also call close()Victor Stinner2015-01-291-0/+3
| | | | close() closes pipes, which is not None yet by _kill_wait().
* asyncio: Fix _SelectorSocketTransport constructorVictor Stinner2015-01-281-1/+3
| | | | | Only start reading when connection_made() has been called: protocol.data_received() must not be called before protocol.connection_made().
* asyncio: SSL transports now clear their reference to the waiterVictor Stinner2015-01-284-21/+32
| | | | | | | * Rephrase also the comment explaining why the waiter is not awaken immediatly. * SSLProtocol.eof_received() doesn't instanciate ConnectionResetError exception directly, it will be done by Future.set_exception(). The exception is not used if the waiter was cancelled or if there is no waiter.
* asyncio: Fix SSLProtocol.eof_received()Victor Stinner2015-01-281-0/+4
| | | | Wake-up the waiter if it is not done yet.
* asyncio: sync with TulipVictor Stinner2015-01-272-2/+2
| | | | | | | | | | * Remove unused SSLProtocol._closing attribute * test_sslproto: skip test if ssl module is missing * Python issue #23208: Don't use the traceback of the current handle if we already know the traceback of the source. The handle may be more revelant, but having 3 tracebacks (handle, source, exception) becomes more difficult to read. The handle may be preferred later but it requires more work to make this choice.
* asyncio, Tulip issue 204: Fix IocpProactor.recv()Victor Stinner2015-01-261-7/+13
| | | | | | | | | If ReadFile() fails with ERROR_BROKEN_PIPE, the operation is not pending: don't register the overlapped. I don't know if WSARecv() can fail with ERROR_BROKEN_PIPE. Since Overlapped.WSARecv() already handled ERROR_BROKEN_PIPE, let me guess that it has the same behaviour than ReadFile().
* Issue #23095, asyncio: Fix _WaitHandleFuture.cancel()Victor Stinner2015-01-261-20/+17
| | | | | If UnregisterWaitEx() fais with ERROR_IO_PENDING, it doesn't mean that the wait is unregistered yet. We still have to wait until the wait is cancelled.
* Issue #23293, asyncio: Rewrite IocpProactor.connect_pipe() as a coroutineVictor Stinner2015-01-261-21/+18
| | | | | | | Use a coroutine with asyncio.sleep() instead of call_later() to ensure that the schedule call is cancelled. Add also a unit test cancelling connect_pipe().
* asyncio: PipeHandle.fileno() now raises an exception if the pipe is closedVictor Stinner2015-01-261-0/+2
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* asyncio: Fix ProactorEventLoop.start_serving_pipe()Victor Stinner2015-01-261-1/+13
| | | | | If a client connected before the server was closed: drop the client (close the pipe) and exit.
* Issue #23208, asyncio: Add BaseEventLoop._current_handleVictor Stinner2015-01-261-6/+19
| | | | | | | | | In debug mode, BaseEventLoop._run_once() now sets the BaseEventLoop._current_handle attribute to the handle currently executed. In release mode or when no handle is executed, the attribute is None. BaseEventLoop.default_exception_handler() displays the traceback of the current handle if available.
* Issue #23293, asyncio: Cleanup IocpProactor.close()Victor Stinner2015-01-261-6/+1
| | | | | The special case for connect_pipe() is not more needed. connect_pipe() doesn't use overlapped operations anymore.
* asyncio: Close transports on errorVictor Stinner2015-01-261-3/+21
| | | | | Fix create_datagram_endpoint(), connect_read_pipe() and connect_write_pipe(): close the transport if the task is cancelled or on error.
* asyncio, Tulip issue 204: Fix IocpProactor.accept_pipe()Victor Stinner2015-01-221-24/+17
| | | | | | | | Overlapped.ConnectNamedPipe() now returns a boolean: True if the pipe is connected (if ConnectNamedPipe() failed with ERROR_PIPE_CONNECTED), False if the connection is in progress. This change removes multiple hacks in IocpProactor.
* Issue #23293, asyncio: Rewrite IocpProactor.connect_pipe()Victor Stinner2015-01-221-17/+26
| | | | | | | | Add _overlapped.ConnectPipe() which tries to connect to the pipe for asynchronous I/O (overlapped): call CreateFile() in a loop until it doesn't fail with ERROR_PIPE_BUSY. Use an increasing delay between 1 ms and 100 ms. Remove Overlapped.WaitNamedPipeAndConnect() which is no more used.
* asyncio: IocpProactor.close() doesn't cancel anymore futures which are alreadyVictor Stinner2015-01-221-3/+7
| | | | cancelled
* Issue #23095, asyncio: IocpProactor.close() must not cancel pendingVictor Stinner2015-01-211-0/+6
| | | | _WaitCancelFuture futures
* asyncio: BaseEventLoop._create_connection_transport() catchs any exception, notVictor Stinner2015-01-211-1/+1
| | | | only Exception
* Issue #23095, asyncio: Rewrite _WaitHandleFuture.cancel()Victor Stinner2015-01-211-34/+134
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change fixes a race conditon related to _WaitHandleFuture.cancel() leading to Python crash or "GetQueuedCompletionStatus() returned an unexpected event" logs. Before, the overlapped object was destroyed too early, it was possible that the wait completed whereas the overlapped object was already destroyed. Sometimes, a different overlapped was allocated at the same address, leading to unexpected completition. _WaitHandleFuture.cancel() now waits until the wait is cancelled to clear its reference to the overlapped object. To wait until the cancellation is done, UnregisterWaitEx() is used with an event instead of UnregisterWait(). To wait for this event, a new _WaitCancelFuture class was added. It's a simplified version of _WaitCancelFuture. For example, its cancel() method calls UnregisterWait(), not UnregisterWaitEx(). _WaitCancelFuture should not be cancelled. The overlapped object is kept alive in _WaitHandleFuture until the wait is unregistered. Other changes: * Add _overlapped.UnregisterWaitEx() * Remove fast-path in IocpProactor.wait_for_handle() to immediatly set the result if the wait already completed. I'm not sure that it's safe to call immediatly UnregisterWaitEx() before the completion was signaled. * Add IocpProactor._unregistered() to forget an overlapped which may never be signaled, but may be signaled for the next loop iteration. It avoids to block forever IocpProactor.close() if a wait was cancelled, and it may also avoid some "... unexpected event ..." warnings.
* asyncio: pyflakes, remove unused importVictor Stinner2015-01-212-2/+1
| | | | tests: Remove unused function; inline another function
* asyncio: Enhance BaseProactorEventLoop._loop_self_reading()Victor Stinner2015-01-211-3/+9
| | | | | | | | * Handle correctly CancelledError: just exit * On error, log the exception and exit Don't try to close the event loop, it is probably running and so it cannot be closed.
* Backout changeset 6ab2575bc12bVictor Stinner2015-01-151-21/+4
| | | | | | | StreamWriter: close() now clears the reference to the transport StreamWriter now raises an exception if it is closed: write(), writelines(), write_eof(), can_write_eof(), get_extra_info(), drain().
* Closes #23219: cancelling asyncio.wait_for() now cancels the taskVictor Stinner2015-01-151-4/+8
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* asyncio: Close the transport on subprocess creation failureVictor Stinner2015-01-152-2/+11
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* asyncio: Fix _ProactorBasePipeTransport.close()Victor Stinner2015-01-151-1/+3
| | | | | | | Set the _read_fut attribute to None after cancelling it. This change should fix a race condition with _ProactorWritePipeTransport._pipe_closed().
* asyncio: Fix _ProactorBasePipeTransport.__repr__()Victor Stinner2015-01-151-3/+3
| | | | Check if the _sock attribute is None to check if the transport is closed.
* Issue #23243: Fix asyncio._UnixWritePipeTransport.close()Victor Stinner2015-01-151-1/+1
| | | | | Do nothing if the transport is already closed. Before it was not possible to close the transport twice.
* SSLProtocol: set the _transport attribute in the constructorVictor Stinner2015-01-151-0/+1
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* Issue #23242: asyncio.SubprocessStreamProtocol now closes the subprocessVictor Stinner2015-01-151-1/+4
| | | | | | transport at subprocess exit. Clear also its reference to the transport.
* Issue #22560: Fix typo: call -> call_soonVictor Stinner2015-01-151-1/+1
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* Issue #22560: Fix SSLProtocol._on_handshake_complete()Victor Stinner2015-01-151-2/+6
| | | | | | Don't call immediatly self._process_write_backlog() but schedule the call using call_soon(). _on_handshake_complete() can be called indirectly from _process_write_backlog(), and _process_write_backlog() is not reentrant.
* StreamWriter: close() now clears the reference to the transportVictor Stinner2015-01-151-4/+21
| | | | | StreamWriter now raises an exception if it is closed: write(), writelines(), write_eof(), can_write_eof(), get_extra_info(), drain().
* asyncio: sync with TulipVictor Stinner2015-01-147-11/+31
| | | | | | | | | | | | | | | | | | | | | | | * PipeHandle now uses None instead of -1 for a closed handle * Sort imports in windows_utils. * Fix test_events on Python older than 3.5. Skip SSL tests on the ProactorEventLoop if ssl.MemoryIO is missing * Fix BaseEventLoop._create_connection_transport(). Close the transport if the creation of the transport (if the waiter) gets an exception. * _ProactorBasePipeTransport now sets _sock to None when the transport is closed. * Fix BaseSubprocessTransport.close(). Ignore pipes for which the protocol is not set yet (still equal to None). * TestLoop.close() now calls the close() method of the parent class (BaseEventLoop). * Cleanup BaseSelectorEventLoop: create the protocol on a separated line for readability and ease debugging. * Fix BaseSubprocessTransport._kill_wait(). Set the _returncode attribute, so close() doesn't try to terminate the process. * Tests: explicitly close event loops and transports * UNIX pipe transports: add closed/closing in repr(). Add "closed" or "closing" state in the __repr__() method of _UnixReadPipeTransport and _UnixWritePipeTransport classes.
* Issue #23197: On SSL handshake failure on matching hostname, check if theVictor Stinner2015-01-141-1/+2
| | | | waiter is cancelled before setting its exception.
* Issue #23197, asyncio: On SSL handshake failure, check if the waiter isVictor Stinner2015-01-142-3/+4
| | | | | | | cancelled before setting its exception. * Add unit tests for this case. * Cleanup also sslproto.py
* Python issue #23173: sync with TulipVictor Stinner2015-01-142-27/+66
| | | | | | | | * If an exception is raised during the creation of a subprocess, kill the subprocess (close pipes, kill and read the return status). Log an error in such case. * Fix SubprocessStreamProtocol.connection_made() to handle cancelled waiter. Add unit test cancelling subprocess methods.
* Issue #23198: Reactor asyncio.StreamReaderVictor Stinner2015-01-131-25/+22
| | | | | | - Add a new _wakeup_waiter() method - Replace _create_waiter() method with a _wait_for_data() coroutine function - Use the value None instead of True or False to wake up the waiter
* Issue #22560: New SSL implementation based on ssl.MemoryBIOVictor Stinner2015-01-134-27/+694
| | | | | | | | | | | | | | | | | | | The new SSL implementation is based on the new ssl.MemoryBIO which is only available on Python 3.5. On Python 3.4 and older, the legacy SSL implementation (using SSL_write, SSL_read, etc.) is used. The proactor event loop only supports the new implementation. The new asyncio.sslproto module adds _SSLPipe, SSLProtocol and _SSLProtocolTransport classes. _SSLPipe allows to "wrap" or "unwrap" a socket (switch between cleartext and SSL/TLS). Patch written by Antoine Pitrou. sslproto.py is based on gruvi/ssl.py of the gruvi project written by Geert Jansen. This change adds SSL support to ProactorEventLoop on Python 3.5 and newer! It becomes also possible to implement STARTTTLS: switch a cleartext socket to SSL.
* Issue #22922: Fix ProactorEventLoop.close()Victor Stinner2015-01-131-1/+7
| | | | | Close the IocpProactor before closing the event loop. IocpProactor.close() can call loop.call_soon(), which is forbidden when the event loop is closed.
* Issue #23209: Break some reference cycles in asyncio. Patch written by MartinVictor Stinner2015-01-092-1/+2
| | | | Richard.
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