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airstream/frametypes/ptp_announce.py

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2025-08-03 20:20:55 -04:00
from collections import defaultdict
from typing import Dict, List, Any
from scapy.all import Packet
from .base import FrameTypeInterface
class PTPAnnounceStats(FrameTypeInterface):
"""PTP Announce Message Statistics"""
def __init__(self):
super().__init__()
self.name = "PTP Announce"
self.count = 0
self.bytes = 0
self.first_time = None
self.last_time = None
self.announce_count = 0
self.grandmaster_changes = 0
self.priority_changes = 0
self.grandmaster_ids = set()
self.clock_classes = defaultdict(int)
def add(self, timestamp: float, size: int, packet: Packet):
self.count += 1
self.bytes += size
if self.first_time is None:
self.first_time = timestamp
self.last_time = timestamp
# In real implementation, decode PTP announce messages
def get_summary_dict(self) -> Dict[str, Any]:
duration = (self.last_time or 0) - (self.first_time or 0)
return {
'Pkts': self.count,
'Announce': self.announce_count,
'GM Changes': self.grandmaster_changes,
'Priority Changes': self.priority_changes,
'Grandmasters': len(self.grandmaster_ids),
'Clock Classes': len(self.clock_classes)
}
def get_column_definitions(self) -> List[tuple]:
return [
('Pkts', 'd'),
('Announce', 'd'),
('GM Changes', 'd'),
('Priority Changes', 'd'),
('Grandmasters', 'd'),
('Clock Classes', 'd')
]