def checkLocks(self, path, lockSuffix):
"""
Check if there are active locks ending with ``lockSuffix`` in ``path``.
If the process owning the lock doesn't exist anymore this will remove
the lock.
Args:
path (str): full path to lock directory
lockSuffix (str): last part of locks name
Returns:
bool: ``True`` if there are active locks in ``path``
"""
for f in os.listdir(path):
if not f[-len(lockSuffix):] == lockSuffix:
continue
is_tmp = os.path.basename(
f)[-len(lockSuffix) - len('.tmp'):-len(lockSuffix)] == '.tmp'
if is_tmp:
lock_pid = os.path.basename(f)[:-len('.tmp') - len(lockSuffix)]
else:
lock_pid = os.path.basename(f)[:-len(lockSuffix)]
if lock_pid == self.pid:
if is_tmp == self.tmp_mount:
continue
if tools.processAlive(int(lock_pid)):
return True
else:
logger.debug('Remove old and invalid lock %s' % f, self)
#clean up
os.remove(os.path.join(path, f))
for symlink in os.listdir(self.mount_root):
if symlink.endswith('_%s' % lock_pid):
os.remove(os.path.join(self.mount_root, symlink))
return False
def checkLocks(self, path, lockSuffix):
"""
Check if there are active locks ending with ``lockSuffix`` in ``path``.
If the process owning the lock doesn't exist anymore this will remove
the lock.
Args:
path (str): full path to lock directory
lockSuffix (str): last part of locks name
Returns:
bool: ``True`` if there are active locks in ``path``
"""
for f in os.listdir(path):
if not f[-len(lockSuffix):] == lockSuffix:
continue
is_tmp = os.path.basename(f)[-len(lockSuffix)-len('.tmp'):-len(lockSuffix)] == '.tmp'
if is_tmp:
lock_pid = os.path.basename(f)[:-len('.tmp')-len(lockSuffix)]
else:
lock_pid = os.path.basename(f)[:-len(lockSuffix)]
if lock_pid == self.pid:
if is_tmp == self.tmp_mount:
continue
if tools.processAlive(int(lock_pid)):
return True
else:
logger.debug('Remove old and invalid lock %s'
%f, self)
#clean up
os.remove(os.path.join(path, f))
for symlink in os.listdir(self.mount_root):
if symlink.endswith('_%s' % lock_pid):
os.remove(os.path.join(self.mount_root, symlink))
return False
def test_processAlive(self):
"""
Test the function processAlive
"""
#TODO: add test (in chroot) running proc as root and kill as non-root
self.assertTrue(tools.processAlive(os.getpid()))
pid = self.createProcess()
self.assertTrue(tools.processAlive(pid))
self.killProcess()
self.assertFalse(tools.processAlive(pid))
self.assertFalse(tools.processAlive(999999))
with self.assertRaises(ValueError):
tools.processAlive(0)
self.assertFalse(tools.processAlive(-1))
def test_processAlive(self):
"""
Test the function processAlive
"""
#TODO: add test (in chroot) running proc as root and kill as non-root
self.assertTrue(tools.processAlive(os.getpid()))
pid = self.createProcess()
self.assertTrue(tools.processAlive(pid))
self.killProcess()
self.assertFalse(tools.processAlive(pid))
self.assertFalse(tools.processAlive(999999))
with self.assertRaises(ValueError):
tools.processAlive(0)
self.assertFalse(tools.processAlive(-1))
def updateInfo(self):
if not tools.processAlive(self.ppid):
self.prepairExit()
self.qapp.exit(0)
return
paused = tools.processPaused(self.snapshots.pid())
self.btnPause.setVisible(not paused)
self.btnResume.setVisible(paused)
message = self.snapshots.takeSnapshotMessage()
if message is None and self.last_message is None:
message = (0, _('Working...'))
if not message is None:
if message != self.last_message:
self.last_message = message
if self.decode:
message = (message[0], self.decode.log(message[1]))
self.menuStatusMessage.setText('\n'.join(tools.wrapLine(message[1],\
size = 80,\
delimiters = '',\
new_line_indicator = '') \
))
self.status_icon.setToolTip(message[1])
pg = progress.ProgressFile(self.config)
if pg.fileReadable():
pg.load()
percent = pg.intValue('percent')
if percent != self.progressBar.value():
self.progressBar.setValue(percent)
self.progressBar.render(self.pixmap,
sourceRegion=QRegion(0, -14, 24, 6),
flags=QWidget.RenderFlags(
QWidget.DrawChildren))
self.status_icon.setIcon(QIcon(self.pixmap))
self.menuProgress.setText(' | '.join(self.getMenuProgress(pg)))
self.menuProgress.setVisible(True)
else:
self.status_icon.setIcon(self.icon.BIT_LOGO)
self.menuProgress.setVisible(False)
def check(self, autoExit=False):
"""
Check if the current application is already running
Args:
autoExit (bool): automatically call sys.exit if there is an other
instance running
Returns:
bool: ``True`` if this is the only application
instance
"""
#check if the pidfile exists
if not os.path.isfile(self.pidFile):
return True
self.pid, self.procname = self.readPidFile()
#check if the process with specified by pid exists
if 0 == self.pid:
return True
if not tools.processAlive(self.pid):
return True
#check if the process has the same procname
#check cmdline for backwards compatibility
if self.procname and \
self.procname != tools.processName(self.pid) and \
self.procname != tools.processCmdline(self.pid):
return True
if autoExit:
#exit the application
print("The application is already running !")
exit(
0
) #exit raise an exception so don't put it in a try/except block
return False
def updateInfo(self):
if not tools.processAlive(self.ppid):
self.prepairExit()
self.qapp.exit(0)
return
paused = tools.processPaused(self.snapshots.pid())
self.btnPause.setVisible(not paused)
self.btnResume.setVisible(paused)
message = self.snapshots.takeSnapshotMessage()
if message is None and self.last_message is None:
message = (0, _('Working...'))
if not message is None:
if message != self.last_message:
self.last_message = message
if self.decode:
message = (message[0], self.decode.log(message[1]))
self.menuStatusMessage.setText('\n'.join(tools.wrapLine(message[1],\
size = 80,\
delimiters = '',\
new_line_indicator = '') \
))
self.status_icon.setToolTip(message[1])
pg = progress.ProgressFile(self.config)
if pg.fileReadable():
pg.load()
percent = pg.intValue('percent')
if percent != self.progressBar.value():
self.progressBar.setValue(percent)
self.progressBar.render(self.pixmap, sourceRegion = QRegion(0, -14, 24, 6), flags = QWidget.RenderFlags(QWidget.DrawChildren))
self.status_icon.setIcon(QIcon(self.pixmap))
self.menuProgress.setText(' | '.join(self.getMenuProgress(pg)))
self.menuProgress.setVisible(True)
else:
self.status_icon.setIcon(self.icon.BIT_LOGO)
self.menuProgress.setVisible(False)
def check(self, autoExit = False):
"""
Check if the current application is already running
Args:
autoExit (bool): automatically call sys.exit if there is an other
instance running
Returns:
bool: ``True`` if this is the only application
instance
"""
#check if the pidfile exists
if not os.path.isfile(self.pidFile):
return True
self.pid, self.procname = self.readPidFile()
#check if the process with specified by pid exists
if 0 == self.pid:
return True
if not tools.processAlive(self.pid):
return True
#check if the process has the same procname
#check cmdline for backwards compatibility
if self.procname and \
self.procname != tools.processName(self.pid) and \
self.procname != tools.processCmdline(self.pid):
return True
if autoExit:
#exit the application
print("The application is already running !")
exit(0) #exit raise an exception so don't put it in a try/except block
return False
