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# Copyright (C) 2017-2019 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import os
import time
from webkitpy.common.timeout_context import Timeout
from webkitpy.port.server_process import ServerProcess
class SimulatorProcess(ServerProcess):
class Popen(object):
def __init__(self, pid, stdin, stdout, stderr, device):
self.stdin = stdin
self.stdout = stdout
self.stderr = stderr
self.pid = pid
self.returncode = None
self._device = device
def poll(self):
if self.returncode:
return self.returncode
if self._device.executive.check_running_pid(self.pid):
self.returncode = None
else:
self.returncode = 1
return self.returncode
def wait(self):
while not self.poll():
time.sleep(0.01) # In seconds
return self.returncode
# Python 2's implementation of makefile does not return a non-blocking file.
class NonBlockingFileFromSocket(object):
def __init__(self, sock, type):
self.socket = sock
self._file = os.fdopen(sock.fileno(), type, 0)
ServerProcess._set_file_nonblocking(self._file)
def __getattr__(self, name):
return getattr(self._file, name)
def close(self):
result = self._file.close()
self.socket.close()
return result
def __init__(self, port_obj, name, cmd, env=None, universal_newlines=False, treat_no_data_as_crash=False, target_host=None):
env['PORT'] = str(target_host.listening_port()) # The target_host should be a device.
super(SimulatorProcess, self).__init__(port_obj, name, cmd, env, universal_newlines, treat_no_data_as_crash, target_host)
self._bundle_id = port_obj.app_identifier_from_bundle(cmd[0])
def process_name(self):
return self._port.app_executable_from_bundle(self._cmd[0])
@staticmethod
def _accept_connection_create_file(server, type):
connection, address = server.accept()
assert address[0] == '127.0.0.1'
return SimulatorProcess.NonBlockingFileFromSocket(connection, type)
def _start(self):
if self._proc:
raise ValueError('{} already running'.format(self._name))
self._reset()
# Each device has a listening socket intitilaized during the port's setup_test_run.
# 3 client connections will be accepted for stdin, stdout and stderr in that order.
self._target_host.listening_socket.listen(3)
self._pid = self._target_host.launch_app(self._bundle_id, self._cmd[1:], env=self._env)
self._system_pid = self._pid
with Timeout(15, RuntimeError('Timed out waiting for pid {} to connect at port {}'.format(self._pid, self._target_host.listening_port()))):
stdin = None
stdout = None
stderr = None
try:
# This order matches the client side connections in Tools/TestRunnerShared/IOSLayoutTestCommunication.cpp setUpIOSLayoutTestCommunication()
stdin = SimulatorProcess._accept_connection_create_file(self._target_host.listening_socket, 'w')
stdout = SimulatorProcess._accept_connection_create_file(self._target_host.listening_socket, 'rb')
stderr = SimulatorProcess._accept_connection_create_file(self._target_host.listening_socket, 'rb')
except:
# We set self._proc as _reset() and _kill() depend on it.
self._proc = SimulatorProcess.Popen(self._pid, stdin, stdout, stderr, self._target_host)
if self._proc.poll() is not None:
self._reset()
raise Exception('App {} with pid {} crashed before stdin could be attached'.format(os.path.basename(self._cmd[0]), self._pid))
self._kill()
self._reset()
raise
self._proc = SimulatorProcess.Popen(self._pid, stdin, stdout, stderr, self._target_host)
def stop(self, timeout_secs=3.0):
# Only bother to check for leaks or stderr if the process is still running.
if self.poll() is None:
self._port.check_for_leaks(self.process_name(), self.pid())
for child_process_name in self._child_processes.keys():
for child_process_id in self._child_processes[child_process_name]:
self._port.check_for_leaks(child_process_name, child_process_id)
if self._proc and self._proc.pid:
self._target_host.executive.kill_process(self._proc.pid)
return self._wait_for_stop(timeout_secs)