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https://github.com/markqvist/Reticulum.git
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Fixed callback invocation on channel receive
This commit is contained in:
Mark Qvist
parent
1a860c6ffd
commit
d7375bc4c3
@ -176,6 +176,9 @@ class Envelope:
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raise ChannelException(CEType.ME_NOT_REGISTERED, f"Unable to find constructor for Channel MSGTYPE {hex(msgtype)}")
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message = ctor()
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message.unpack(raw)
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self.unpacked = True
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self.message = message
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return message
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def pack(self) -> bytes:
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@ -183,6 +186,7 @@ class Envelope:
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raise ChannelException(CEType.ME_NO_MSG_TYPE, f"{self.message.__class__} lacks MSGTYPE")
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data = self.message.pack()
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self.raw = struct.pack(">HHH", self.message.MSGTYPE, self.sequence, len(data)) + data
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self.packed = True
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return self.raw
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def __init__(self, outlet: ChannelOutletBase, message: MessageBase = None, raw: bytes = None, sequence: int = None):
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@ -194,6 +198,8 @@ class Envelope:
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self.sequence = sequence
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self.outlet = outlet
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self.tries = 0
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self.unpacked = False
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self.packed = False
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self.tracked = False
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@ -371,22 +377,29 @@ class Channel(contextlib.AbstractContextManager):
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def _emplace_envelope(self, envelope: Envelope, ring: collections.deque[Envelope]) -> bool:
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with self._lock:
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i = 0
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window_overflow = (self._next_rx_sequence+Channel.WINDOW_MAX) % Channel.SEQ_MODULUS
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for existing in ring:
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if existing.sequence > envelope.sequence \
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and not existing.sequence // 2 > envelope.sequence: # account for overflow
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ring.insert(i, envelope)
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return True
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if existing.sequence == envelope.sequence:
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if envelope.sequence == existing.sequence:
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RNS.log(f"Envelope: Emplacement of duplicate envelope with sequence "+str(envelope.sequence), RNS.LOG_EXTREME)
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return False
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if envelope.sequence < existing.sequence and not envelope.sequence < window_overflow:
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ring.insert(i, envelope)
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RNS.log("Inserted seq "+str(envelope.sequence)+" at "+str(i), RNS.LOG_DEBUG)
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envelope.tracked = True
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return True
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i += 1
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envelope.tracked = True
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ring.append(envelope)
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return True
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def _run_callbacks(self, message: MessageBase):
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with self._lock:
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cbs = self._message_callbacks.copy()
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cbs = self._message_callbacks.copy()
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for cb in cbs:
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try:
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@ -405,12 +418,11 @@ class Channel(contextlib.AbstractContextManager):
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window_overflow = (self._next_rx_sequence+Channel.WINDOW_MAX) % Channel.SEQ_MODULUS
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if window_overflow < self._next_rx_sequence:
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if envelope.sequence > window_overflow:
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RNS.log("Invalid packet sequence ("+str(envelope.sequence)+") received on channel "+str(self), RNS.LOG_DEBUG)
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RNS.log("Invalid packet sequence ("+str(envelope.sequence)+") received on channel "+str(self), RNS.LOG_EXTREME)
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return
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else:
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if envelope.sequence < self._next_rx_sequence:
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RNS.log("Invalid packet sequence ("+str(envelope.sequence)+") received on channel "+str(self), RNS.LOG_DEBUG)
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return
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RNS.log("Invalid packet sequence ("+str(envelope.sequence)+") received on channel "+str(self), RNS.LOG_EXTREME)
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return
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is_new = self._emplace_envelope(envelope, self._rx_ring)
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@ -426,9 +438,13 @@ class Channel(contextlib.AbstractContextManager):
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self._next_rx_sequence = (self._next_rx_sequence + 1) % Channel.SEQ_MODULUS
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for e in contigous:
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m = e.unpack(self._message_factories)
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if not e.unpacked:
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m = e.unpack(self._message_factories)
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else:
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m = e.message
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self._rx_ring.remove(e)
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threading.Thread(target=self._run_callbacks, name="Message Callback", args=[m], daemon=True).start()
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self._run_callbacks(m)
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except Exception as e:
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RNS.log("An error ocurred while receiving data on "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
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@ -469,7 +485,7 @@ class Channel(contextlib.AbstractContextManager):
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self.window_min += 1
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# TODO: Remove at some point
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RNS.log("Increased "+str(self)+" window to "+str(self.window), RNS.LOG_DEBUG)
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# RNS.log("Increased "+str(self)+" window to "+str(self.window), RNS.LOG_EXTREME)
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if self._outlet.rtt != 0:
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if self._outlet.rtt > Channel.RTT_FAST:
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@ -483,19 +499,17 @@ class Channel(contextlib.AbstractContextManager):
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if self.window_max < Channel.WINDOW_MAX_MEDIUM and self.medium_rate_rounds == Channel.FAST_RATE_THRESHOLD:
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self.window_max = Channel.WINDOW_MAX_MEDIUM
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# TODO: Remove at some point
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RNS.log("Increased "+str(self)+" max window to "+str(self.window_max), RNS.LOG_EXTREME)
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# RNS.log("Increased "+str(self)+" max window to "+str(self.window_max), RNS.LOG_EXTREME)
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else:
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self.fast_rate_rounds += 1
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if self.window_max < Channel.WINDOW_MAX_FAST and self.fast_rate_rounds == Channel.FAST_RATE_THRESHOLD:
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self.window_max = Channel.WINDOW_MAX_FAST
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# TODO: Remove at some point
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RNS.log("Increased "+str(self)+" max window to "+str(self.window_max), RNS.LOG_EXTREME)
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# RNS.log("Increased "+str(self)+" max window to "+str(self.window_max), RNS.LOG_EXTREME)
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else:
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RNS.log("Envelope not found in TX ring for "+str(self), RNS.LOG_DEBUG)
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RNS.log("Envelope not found in TX ring for "+str(self), RNS.LOG_EXTREME)
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if not envelope:
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RNS.log("Spurious message received on "+str(self), RNS.LOG_EXTREME)
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@ -525,7 +539,7 @@ class Channel(contextlib.AbstractContextManager):
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self.window_max -= 1
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# TODO: Remove at some point
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RNS.log("Decreased "+str(self)+" window to "+str(self.window), RNS.LOG_EXTREME)
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# RNS.log("Decreased "+str(self)+" window to "+str(self.window), RNS.LOG_EXTREME)
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return False
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@ -543,16 +557,18 @@ class Channel(contextlib.AbstractContextManager):
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with self._lock:
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if not self.is_ready_to_send():
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raise ChannelException(CEType.ME_LINK_NOT_READY, f"Link is not ready")
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envelope = Envelope(self._outlet, message=message, sequence=self._next_sequence)
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self._next_sequence = (self._next_sequence + 1) % Channel.SEQ_MODULUS
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self._emplace_envelope(envelope, self._tx_ring)
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if envelope is None:
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raise BlockingIOError()
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envelope.pack()
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if len(envelope.raw) > self._outlet.mdu:
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raise ChannelException(CEType.ME_TOO_BIG, f"Packed message too big for packet: {len(envelope.raw)} > {self._outlet.mdu}")
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envelope.packet = self._outlet.send(envelope.raw)
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envelope.tries += 1
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self._outlet.set_packet_delivered_callback(envelope.packet, self._packet_delivered)
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@ -591,7 +607,6 @@ class LinkChannelOutlet(ChannelOutletBase):
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return packet
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def resend(self, packet: RNS.Packet) -> RNS.Packet:
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RNS.log("Resending packet " + RNS.prettyhexrep(packet.packet_hash), RNS.LOG_DEBUG)
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receipt = packet.resend()
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if not receipt:
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RNS.log("Failed to resend packet", RNS.LOG_ERROR)
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