Commit Graph

13 Commits (5a0da02e6cb139ab4e3f6279bf9ecab806f6e3e1)

Author SHA1 Message Date
David Wilson 57012e0f72 Add mitogen.core.now() and use it everywhere; closes #614. 5 years ago
David Wilson b75198396d Fix unit_Test.ClientTest following 108015aa22
Closes #604
5 years ago
David Wilson 54987100b2 [stream-refactor] allow up to 30 seconds to connect in unix_test
It reliably fails when running on a (intentionally) heavily loaded
machine
5 years ago
David Wilson 8d1b01d8ef Refactor Stream, introduce quasi-asynchronous connect, much more
Split Stream into many, many classes

  * mitogen.parent.Connection: Handles connection setup logic only.
    * Maintain references to stdout and stderr streams.
    * Manages TimerList timer to cancel connection attempt after
      deadline
    * Blocking setup code replaced by async equivalents running on the
      broker

  * mitogen.parent.Options: Tracks connection-specific options. This
    keeps the connection class small, but more importantly, it is
    generic to the future desire to build and execute command lines
    without starting a full connection.

  * mitogen.core.Protocol: Handles program behaviour relating to events
    on a stream. Protocol performs no IO of its own, instead deferring
    it to Stream and Side. This makes testing much easier, and means
    libssh can reimplement Stream and Side to reuse MitogenProtocol

  * mitogen.core.MitogenProtocol: Guts of the old Mitogen stream
    implementtion

  * mitogen.core.BufferedWriter: Guts of the old Mitogen buffered
    transmit implementation, made generic

  * mitogen.core.DelineatedProtocol: Guts of the old IoLogger, knows how
    to split up input and pass it on to a
    on_line_received()/on_partial_line_received() callback.

  * mitogen.parent.BootstrapProtocol: Asynchronous equivalent of the old
    blocking connect code. Waits for various prompts (MITO001 etc) and
    writes the bootstrap using a BufferedWriter. On success, switches
    the stream to MitogenProtocol.

  * mitogen.core.Message: move encoding parts of MitogenProtocol out to
    Message (where it belongs) and write a bunch of new tests for
    pickling.

  * The bizarre Stream.construct() is gone now, Option.__init__ is its
    own constructor. Should fix many LGTM errors.

* Update all connection methods:  Every connection method is updated to
  use async logic, defining protocols as required to handle interactive
  prompts like in SSH or su. Add new real integration tests for at least
  doas and su.

* Eliminate manual fd management: File descriptors are trapped in file
  objects at their point of origin, and Side is updated to use file
  objects rather than raw descriptors. This eliminates a whole class of
  bugs where unrelated FDs could be closed by the wrong component. Now
  an FD's open/closed status is fused to it everywhere in the library.

* Halve file descriptor usage: now FD open/close state is tracked by
  its file object, we don't need to duplicate FDs everywhere so that
  receive/transmit side can be closed independently. Instead both sides
  back on to the same file object. Closes #26, Closes #470.

* Remove most uses of dup/dup2: Closes #256. File descriptors are
  trapped in a common file object and shared among classes. The
  remaining few uses for dup/dup2 are as close to minimal as possible.

* Introduce mitogen.parent.Process: uniform interface for subprocesses
  created either via mitogen.fork or the subprocess module. Remove all
  the crap where we steal a pid from subprocess guts. Now we use
  subprocess to manage its processes as it should be. Closes #169 by
  using the new Timers facility to poll for a slow-to-exit subprocess.

* Fix su password race: Closes #363. DelineatedProtocol naturally
  retries partially received lines, preventing the cause of the original
  race.

* Delete old blocking IO utility functions
  iter_read()/write_all()/discard_until().

Closes #26
Closes #147
Closes #169
Closes #256
Closes #363
Closes #419
Closes #470
5 years ago
David Wilson b6634194af issue #477: clean up globals after unix_test. 6 years ago
David Wilson 69c27a33fc issue #477: remove fork use from unix_test. 6 years ago
David Wilson 6281f231cb issue #477: more fork removal 6 years ago
David Wilson 6592598999 tests: stray socket file left during unix_test. 6 years ago
David Wilson cce1dbf3b1 tests: quieten a bunch of spam printed during run 6 years ago
David Wilson 003526ef7b issue #406: fix thread leaks in unix_test too. 6 years ago
David Wilson 8a0b343760 issue #406: test for FD leak after every TestCase 6 years ago
David Wilson c1c7e5171d tests: fix fork FD sharing in unix_test. 6 years ago
David Wilson 4e3830d75e tests: add basic unix_test.py. 6 years ago