def BindDevToolsClient(self):
# In addition to the work performed by the base class, quickly check if
# the browser process is still alive.
if not self.IsBrowserRunning():
raise exceptions.ProcessGoneException('Return code: %d' %
self._proc.returncode)
super(DesktopBrowserBackend, self).BindDevToolsClient()
def HasBrowserFinishedLaunching(self):
# In addition to the functional check performed by the base class, quickly
# check if the browser process is still alive.
if not self.IsBrowserRunning():
raise exceptions.ProcessGoneException("Return code: %d" %
self._proc.returncode)
# Start DevTools on an ephemeral port and wait for the well-known file
# containing the port number to exist.
port_file = self._GetDevToolsActivePortPath()
if not os.path.isfile(port_file):
# File isn't ready yet. Return false. Will retry.
return False
# Attempt to avoid reading the file until it's populated.
got_port = False
try:
if os.stat(port_file).st_size > 0:
with open(port_file) as f:
port_string = f.read()
self._port = int(port_string)
logging.info('Discovered ephemeral port %s' % self._port)
got_port = True
except Exception:
# Both stat and open can throw exceptions.
pass
if not got_port:
# File isn't ready yet. Return false. Will retry.
return False
return super(DesktopBrowserBackend, self).HasBrowserFinishedLaunching()
def _GetProcFileForPid(self, pid, filename):
try:
return self.GetFileContents('/proc/%s/%s' % (pid, filename))
except IOError:
if not self._IsPidAlive(pid):
raise exceptions.ProcessGoneException()
raise
def HasBrowserFinishedLaunching(self):
# In addition to the functional check performed by the base class, quickly
# check if the browser process is still alive.
if not self.IsBrowserRunning():
raise exceptions.ProcessGoneException("Return code: %d" %
self._proc.returncode)
return super(DesktopMandolineBackend,
self).HasBrowserFinishedLaunching()
def _GetWin32ProcessInfo(self, func, pid):
try:
return func(self._GetProcessHandle(pid))
except pywintypes.error, e:
errcode = e[0]
if errcode == 87:
raise exceptions.ProcessGoneException()
raise
def _GetWin32ProcessInfo(self, func, pid):
mask = (win32con.PROCESS_QUERY_INFORMATION | win32con.PROCESS_VM_READ)
handle = None
try:
handle = win32api.OpenProcess(mask, False, pid)
return func(handle)
except pywintypes.error, e:
errcode = e[0]
if errcode == 87:
raise exceptions.ProcessGoneException()
raise
def _GetDevToolsClientConfig(self):
# TODO(crbug.com/787834): Split into reading DevToolsActivePort, retrying
# if needed, and setting up fowarder.
# In addition to the functional check performed by the base class, quickly
# check if the browser process is still alive.
if not self.IsBrowserRunning():
raise exceptions.ProcessGoneException("Return code: %d" %
self._proc.returncode)
# Start DevTools on an ephemeral port and wait for the well-known file
# containing the port number to exist.
port_file = self._GetDevToolsActivePortPath()
if not os.path.isfile(port_file):
# File isn't ready yet. Return false. Will retry.
return False
# Attempt to avoid reading the file until it's populated.
got_port = False
try:
if os.stat(port_file).st_size > 0:
with open(port_file) as f:
port_target = f.read().split('\n')
local_port = int(port_target[0])
if len(port_target) > 1 and port_target[1]:
browser_target = port_target[1]
else:
browser_target = None
logging.info('Discovered ephemeral port %s', local_port)
logging.info('Browser target: %s', browser_target)
got_port = True
except IOError:
# Both stat and open can throw exceptions.
pass
if not got_port:
# File isn't ready yet. Return false. Will retry.
return False
return devtools_client_backend.DevToolsClientConfig(
local_port=local_port,
browser_target=browser_target,
app_backend=self)
def GetCommandLine(self, pid):
try:
return next(p.name for p in self._device.ListProcesses()
if p.pid == pid)
except StopIteration:
raise exceptions.ProcessGoneException()
def GetCommandLine(self, pid):
ps = self._GetPsOutput(['pid', 'name'], pid)
if not ps:
raise exceptions.ProcessGoneException()
return ps[0][1]
def GetCommandLine(self, pid):
for pi in self.GetSystemProcessInfo():
if pid == pi['ProcessId']:
return pi['CommandLine']
raise exceptions.ProcessGoneException()
def GetCommandLine(self, pid):
ps = self._GetPsOutput(['pid', 'name'])
for curr_pid, curr_name in ps:
if int(curr_pid) == pid:
return curr_name
raise exceptions.ProcessGoneException()
