Merge pull request #50731 from joscollin/wip-58983-quincy

quincy: cephfs-top: navigate to home screen when no fs

Reviewed-by: Milind Changire <mchangir@redhat.com>

diff --cc src/tools/cephfs/top/cephfs-top
index 0144d68359322aa68be39c2e8b0a559649d21a5b,f0ecbeffdaf875577dd21a106e2e0b15929d33a0..68d1c6cac86511073c260b4bcdff038d6de234c8
--- 1/src/tools/cephfs/top/cephfs-top
--- 2/src/tools/cephfs/top/cephfs-top
+++ b/src/tools/cephfs/top/cephfs-top
@@@ -150,122 -156,11 +150,122 @@@ def wrap(s, sl)
      return f'{s[0:sl-1]}+'
  
  
 -class FSTop(object):
 +class FSTopBase(object):
 +    def __init__(self):
 +        self.last_time = time.time()
 +        self.last_read_size = {}
 +        self.last_write_size = {}
 +        self.dump_json = {}
 +
 +    @staticmethod
 +    def has_metric(metadata, metrics_key):
 +        return metrics_key in metadata
 +
 +    @staticmethod
 +    def has_metrics(metadata, metrics_keys):
 +        for key in metrics_keys:
 +            if not FSTopBase.has_metric(metadata, key):
 +                return False
 +        return True
 +
 +    def __build_clients(self, fs):
 +        fs_meta = self.dump_json.setdefault(fs, {})
 +        fs_key = self.stats_json[GLOBAL_METRICS_KEY].get(fs, {})
 +        clients = fs_key.keys()
 +        for client_id in clients:
 +            cur_time = time.time()
 +            duration = cur_time - self.last_time
 +            self.last_time = cur_time
 +            client_meta = self.stats_json[CLIENT_METADATA_KEY].get(fs, {}).get(client_id, {})
 +            for item in MAIN_WINDOW_TOP_LINE_ITEMS_START[1:]:
 +                if item == FS_TOP_MAIN_WINDOW_COL_CLIENT_ID:
 +                    client_id_meta = fs_meta.setdefault(client_id.split('.')[1], {})
 +                elif item == FS_TOP_MAIN_WINDOW_COL_MNT_ROOT:
 +                    client_id_meta.update({item:
 +                                           client_meta[CLIENT_METADATA_MOUNT_ROOT_KEY]})
 +            counters = [m.upper() for m in self.stats_json[GLOBAL_COUNTERS_KEY]]
 +            metrics = fs_key.get(client_id, {})
 +            cidx = 0
 +            for item in counters:
 +                if item in MAIN_WINDOW_TOP_LINE_METRICS_LEGACY:
 +                    cidx += 1
 +                    continue
 +                m = metrics[cidx]
 +                key = MGR_STATS_COUNTERS[cidx]
 +                typ = MAIN_WINDOW_TOP_LINE_METRICS[key]
 +                if item.lower() in client_meta.get(
 +                        CLIENT_METADATA_VALID_METRICS_KEY, []):
 +                    key_name = self.items(item)
 +                    if typ == MetricType.METRIC_TYPE_PERCENTAGE:
 +                        client_id_meta.update({f'{key_name}': calc_perc(m)})
 +                    elif typ == MetricType.METRIC_TYPE_LATENCY:
 +                        client_id_meta.update({f'{key_name}': calc_lat(m)})
 +                    elif typ == MetricType.METRIC_TYPE_STDEV:
 +                        client_id_meta.update({f'{key_name}': calc_stdev(m)})
 +                    elif typ == MetricType.METRIC_TYPE_SIZE:
 +                        client_id_meta.update({f'{key_name}': calc_size(m)})
 +                        # average io sizes
 +                        client_id_meta.update({f'{self.avg_items(item)}':
 +                                               calc_avg_size(m)})
 +                        # io speeds
 +                        size = 0
 +                        if key == "READ_IO_SIZES":
 +                            if m[1] > 0:
 +                                last_size = self.last_read_size.get(client_id, 0)
 +                                size = m[1] - last_size
 +                                self.last_read_size[client_id] = m[1]
 +                        if key == "WRITE_IO_SIZES":
 +                            if m[1] > 0:
 +                                last_size = self.last_write_size.get(client_id, 0)
 +                                size = m[1] - last_size
 +                                self.last_write_size[client_id] = m[1]
 +                        client_id_meta.update({f'{self.speed_items(item)}':
 +                                               calc_speed(abs(size), duration)})
 +                    else:
 +                        # display 0th element from metric tuple
 +                        client_id_meta.update({f'{key_name}': f'{m[0]}'})
 +                else:
 +                    client_id_meta.update({f'{self.items(item)}': "N/A"})
 +                cidx += 1
 +
 +            for item in MAIN_WINDOW_TOP_LINE_ITEMS_END:
 +                if item == FS_TOP_MAIN_WINDOW_COL_MNTPT_HOST_ADDR:
 +                    if FSTopBase.has_metrics(client_meta,
 +                                             [CLIENT_METADATA_MOUNT_POINT_KEY,
 +                                              CLIENT_METADATA_HOSTNAME_KEY,
 +                                              CLIENT_METADATA_IP_KEY]):
 +                        mount_point = f'{client_meta[CLIENT_METADATA_MOUNT_POINT_KEY]}'\
 +                            f'@{client_meta[CLIENT_METADATA_HOSTNAME_KEY]}/'\
 +                            f'{client_meta[CLIENT_METADATA_IP_KEY]}'
 +                        client_id_meta.update({item: mount_point})
 +                    else:
 +                        client_id_meta.update({item: "N/A"})
 +
 +    def dump_metrics_to_stdout(self, fs_name=None):
 +        fs_list = self.get_fs_names()
 +        if not fs_list:
 +            sys.stdout.write("No filesystem available\n")
 +        else:
 +            self.stats_json = self.perf_stats_query()
 +            if fs_name:  # --dumpfs
 +                if fs_name in fs_list:
 +                    self.__build_clients(fs_name)
 +                else:
 +                    sys.stdout.write(f"Filesystem {fs_name} not available\n")
 +                    return
 +            else:  # --dump
 +                for fs in fs_list:
 +                    self.__build_clients(fs)
 +            sys.stdout.write(json.dumps(self.dump_json))
 +            sys.stdout.write("\n")
 +
 +
 +class FSTop(FSTopBase):
      def __init__(self, args):
 +        super(FSTop, self).__init__()
          self.rados = None
          self.stdscr = None  # curses instance
-         self.current_screen = ""
+         self.active_screen = ""
          self.client_name = args.id
          self.cluster_name = args.cluster
          self.conffile = args.conffile