Files
chatmail-core/python/src/deltachat/iothreads.py
2020-04-13 17:39:31 +02:00

107 lines
3.8 KiB
Python

import threading
import time
from contextlib import contextmanager
from .capi import lib
class IOThreads:
def __init__(self, account):
self.account = account
self._dc_context = account._dc_context
self._thread_quitflag = False
self._name2thread = {}
def is_started(self):
return len(self._name2thread) > 0
def start(self, callback_thread):
assert not self.is_started()
self._start_one_thread("inbox", self.imap_thread_run)
self._start_one_thread("smtp", self.smtp_thread_run)
if callback_thread:
self._start_one_thread("cb", self.cb_thread_run)
if int(self.account.get_config("mvbox_watch")):
self._start_one_thread("mvbox", self.mvbox_thread_run)
if int(self.account.get_config("sentbox_watch")):
self._start_one_thread("sentbox", self.sentbox_thread_run)
def _start_one_thread(self, name, func):
self._name2thread[name] = t = threading.Thread(target=func, name=name)
t.setDaemon(1)
t.start()
@contextmanager
def log_execution(self, message):
self.account.ac_log_line(message + " START")
yield
self.account.ac_log_line(message + " FINISHED")
def stop(self, wait=False):
self._thread_quitflag = True
# Workaround for a race condition. Make sure that thread is
# not in between checking for quitflag and entering idle.
time.sleep(0.5)
lib.dc_interrupt_imap_idle(self._dc_context)
lib.dc_interrupt_smtp_idle(self._dc_context)
if "mvbox" in self._name2thread:
lib.dc_interrupt_mvbox_idle(self._dc_context)
if "sentbox" in self._name2thread:
lib.dc_interrupt_sentbox_idle(self._dc_context)
if wait:
for name, thread in self._name2thread.items():
if thread != threading.currentThread():
thread.join()
def cb_thread_run(self):
with self.log_execution("CALLBACK THREAD START"):
it = self.account.iter_events()
while not self._thread_quitflag:
try:
ev = next(it)
except StopIteration:
break
self.account.ac_log_line("calling hook name={} kwargs={}".format(ev.name, ev.kwargs))
ev.call_hook()
def imap_thread_run(self):
with self.log_execution("INBOX THREAD START"):
while not self._thread_quitflag:
lib.dc_perform_imap_jobs(self._dc_context)
if not self._thread_quitflag:
lib.dc_perform_imap_fetch(self._dc_context)
if not self._thread_quitflag:
lib.dc_perform_imap_idle(self._dc_context)
def mvbox_thread_run(self):
with self.log_execution("MVBOX THREAD"):
while not self._thread_quitflag:
lib.dc_perform_mvbox_jobs(self._dc_context)
if not self._thread_quitflag:
lib.dc_perform_mvbox_fetch(self._dc_context)
if not self._thread_quitflag:
lib.dc_perform_mvbox_idle(self._dc_context)
def sentbox_thread_run(self):
with self.log_execution("SENTBOX THREAD"):
while not self._thread_quitflag:
lib.dc_perform_sentbox_jobs(self._dc_context)
if not self._thread_quitflag:
lib.dc_perform_sentbox_fetch(self._dc_context)
if not self._thread_quitflag:
lib.dc_perform_sentbox_idle(self._dc_context)
def smtp_thread_run(self):
with self.log_execution("SMTP THREAD"):
while not self._thread_quitflag:
lib.dc_perform_smtp_jobs(self._dc_context)
if not self._thread_quitflag:
lib.dc_perform_smtp_idle(self._dc_context)