How to use get_pid_from_file method in autotest

Best Python code snippet using autotest_python

test_cassandra.py

Source:test_cassandra.py

...1010            self.assertEqual(write_file.call_count, 2)1011            new_config = write_file.call_args[0][1]1012            self.assertEqual(yaml.safe_load(new_config)['partitioner'],1013                             'overridden_partitioner')1014    def test_get_pid_from_file(self):1015        with tempfile.NamedTemporaryFile('w') as pid_file:1016            pid_file.write(' 42\t')1017            pid_file.flush()1018            self.assertEqual(cassandra.get_pid_from_file(pid_file.name), 42)1019            pid_file.write('\nSome Noise')1020            pid_file.flush()1021            self.assertEqual(cassandra.get_pid_from_file(pid_file.name), 42)1022        for invalid_pid in ['-1', '0', 'fred']:1023            with self.subTest(invalid_pid=invalid_pid):1024                with tempfile.NamedTemporaryFile('w') as pid_file:1025                    pid_file.write(invalid_pid)1026                    pid_file.flush()1027                    self.assertRaises(ValueError,1028                                      cassandra.get_pid_from_file, pid_file.name)1029        with tempfile.TemporaryDirectory() as tmpdir:1030            self.assertRaises(OSError, cassandra.get_pid_from_file,1031                              os.path.join(tmpdir, 'invalid.pid'))1032    @patch('cassandra.get_cassandra_pid_file')1033    def test_is_cassandra_running_not_running(self, get_pid_file):1034        # When Cassandra is not running, the pidfile does not exist.1035        get_pid_file.return_value = 'does not exist'...

daemon.py

Source:daemon.py

...83        # Write the pidfile.84        atexit.register(self.delpid)85        pid = str(os.getpid())86        open(self.pidfile, 'w+').write("%s\n" % pid)87    def get_pid_from_file(self):88        "Returns the pid value from the file."89        try:90            pf = open(self.pidfile, 'r')91            pid = int(pf.read().strip())92            pf.close()93        except IOError:94            pid = None95        return pid96    def delpid(self):97        os.remove(self.pidfile)98    def start(self, debug=False):99        """100        Starts the daemon.101        """102        # Check for a pidfile to see whether the daemon is already running.103        if self.get_pid_from_file():104            sys.stderr.write("pidfile %s already exists. Is the daemon already running?\n" % self.pidfile)105            sys.exit(1)106        # Don't detach from foreground if debugging.107        if not debug:108            self.daemonize()109        # Start the daemon.110        self.run()111    def stop(self):112        """113        Stops the daemon.114        """115        # Get the pid from the pidfile.116        pid = self.get_pid_from_file()117        if not pid:118            sys.stderr.write("pidfile %s does not exist. Is the daemon not running?\n" % self.pidfile)119            return # not an error in a restart120        # Try killing the daemon process.121        try:122            while 1:123                os.kill(pid, SIGTERM)124                time.sleep(0.1)125        except OSError, err:126            err = str(err)127            if err.find("No such process") > 0:128                os.remove(self.pidfile)129            else:130                print str(err)...

process.py

Source:process.py

1import os2import psutil3class process:4    # Return a PID contained in a given file5    def get_pid_from_file(self, pid_file):6        if(os.path.isfile(pid_file)):7            with open(pid_file, 'r') as file:8                pid = file.read()9                10            return int(pid)11        else:12            return 013            14    # Kill PID contained in a given file15    def kill_pid_file(self, pid_file):16        if(self.pid_file_running(pid_file)):17            pid = self.get_pid_from_file(pid_file)18            try:             19                 os.kill(pid, 15)20                 return True21                 22            except OSError:23                return False24                25    # Is PID in a given file running 26    def pid_file_running(self, pid_file):27        pid = self.get_pid_from_file(pid_file)28        29        if(pid == 0):30            return False31        32        if(self.pid_is_running(pid)):33            return True34        else:35            os.remove(pid_file)     36            return False37    # Is a PID  running38    def pid_is_running(self,pid):39        try:40             os.kill(pid, 0)41             return True...

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