mirror of https://github.com/craigerl/aprsd.git
110 lines
3.0 KiB
Python
110 lines
3.0 KiB
Python
from collections import OrderedDict
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import logging
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import threading
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from oslo_config import cfg
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import wrapt
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from aprsd.packets import seen_list
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from aprsd.utils import objectstore
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CONF = cfg.CONF
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LOG = logging.getLogger("APRSD")
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class PacketList(objectstore.ObjectStoreMixin):
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_instance = None
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lock = threading.Lock()
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_total_rx: int = 0
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_total_tx: int = 0
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def __new__(cls, *args, **kwargs):
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if cls._instance is None:
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cls._instance = super().__new__(cls)
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cls._maxlen = CONF.packet_list_maxlen
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cls.data = {
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"types": {},
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"packets": OrderedDict(),
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}
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return cls._instance
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@wrapt.synchronized(lock)
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def rx(self, packet):
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"""Add a packet that was received."""
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self._total_rx += 1
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self._add(packet)
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ptype = packet.__class__.__name__
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if not ptype in self.data["types"]:
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self.data["types"][ptype] = {"tx": 0, "rx": 0}
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self.data["types"][ptype]["rx"] += 1
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seen_list.SeenList().update_seen(packet)
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@wrapt.synchronized(lock)
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def tx(self, packet):
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"""Add a packet that was received."""
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self._total_tx += 1
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self._add(packet)
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ptype = packet.__class__.__name__
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if not ptype in self.data["types"]:
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self.data["types"][ptype] = {"tx": 0, "rx": 0}
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self.data["types"][ptype]["tx"] += 1
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seen_list.SeenList().update_seen(packet)
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@wrapt.synchronized(lock)
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def add(self, packet):
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self._add(packet)
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def _add(self, packet):
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if packet.key in self.data["packets"]:
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self.data["packets"].move_to_end(packet.key)
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elif len(self.data["packets"]) == self.maxlen:
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self.data["packets"].popitem(last=False)
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self.data["packets"][packet.key] = packet
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@wrapt.synchronized(lock)
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def copy(self):
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return self.data.copy()
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@property
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def maxlen(self):
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return self._maxlen
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@wrapt.synchronized(lock)
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def find(self, packet):
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return self.data["packets"][packet.key]
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@wrapt.synchronized(lock)
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def __len__(self):
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return len(self.data["packets"])
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@wrapt.synchronized(lock)
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def total_rx(self):
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return self._total_rx
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@wrapt.synchronized(lock)
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def total_tx(self):
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return self._total_tx
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@wrapt.synchronized(lock)
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def stats(self, serializable=False) -> dict:
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# limit the number of packets to return to 50
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LOG.info(f"PacketList stats called len={len(self.data['packets'])}")
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tmp = OrderedDict(reversed(list(self.data["packets"].items())))
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pkts = []
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count = 1
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for packet in tmp:
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pkts.append(tmp[packet])
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count += 1
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if count > CONF.packet_list_stats_maxlen:
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break
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stats = {
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"total_tracked": self._total_rx + self._total_rx,
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"rx": self._total_rx,
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"tx": self._total_tx,
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"types": self.data["types"],
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"packets": pkts,
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}
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return stats
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