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Use a pipe rather than a socketpair on Unix

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Might fix the test failure issues, who knows
On windows, we have to use a socketpair since pipes
dont work with select
This commit is contained in:
Kovid Goyal 2020-12-08 10:13:29 +05:30
parent e5a5065934
commit 62a0bdad07
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 21 additions and 5 deletions
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26
src/calibre/srv/loop.py
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@ -15,6 +15,7 @@ from functools import partial
from io import BytesIO
from calibre import as_unicode
from calibre.constants import iswindows
from calibre.ptempfile import TemporaryDirectory
from calibre.srv.errors import JobQueueFull
from calibre.srv.jobs import JobsManager
@ -423,7 +424,14 @@ class ServerLoop(object):
return ssl.ALERT_DESCRIPTION_NO_RENEGOTIATION
def create_control_connection(self):
self.control_in, self.control_out = create_sock_pair()
if iswindows:
self.control_in, self.control_out = create_sock_pair()
else:
r, w = os.pipe()
os.set_blocking(r, False)
os.set_blocking(w, True)
self.control_in = open(w, 'wb')
self.control_out = open(r, 'rb')
def __str__(self):
return "%s(%r)" % (self.__class__.__name__, self.bind_address)
@ -636,11 +644,18 @@ class ServerLoop(object):
self.log.error('Error in SSL handshake, terminating connection: %s' % as_unicode(e))
self.close(s, conn)
def write_to_control(self, what):
if iswindows:
self.control_in.sendall(what)
else:
self.control_in.write(what)
self.control_in.flush()
def wakeup(self):
self.control_in.sendall(WAKEUP)
self.write_to_control(WAKEUP)
def job_completed(self):
self.control_in.sendall(JOB_DONE)
self.write_to_control(JOB_DONE)
def dispatch_job_results(self):
while True:
@ -670,9 +685,10 @@ class ServerLoop(object):
if self.ssl_context is not None:
yield s, conn, RDWR
elif s == control:
f = self.control_out.recv if iswindows else self.control_out.read
try:
c = self.control_out.recv(1)
except socket.error:
c = f(1)
except (socket.error, OSError):
if not self.ready:
return
self.log.error('Control socket raised an error, resetting')