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improved qrv slots

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This commit is contained in:
DJ2LS 2023-04-22 15:28:50 +02:00
parent 0a2ee0ea32
commit 0707c64dcb
1 changed files with 13 additions and 7 deletions
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20
tnc/data_handler.py
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@ -38,7 +38,6 @@ class DATA:
log = structlog.get_logger("DATA")
def __init__(self) -> None:
self.stats = stats.stats()
@ -54,6 +53,11 @@ class DATA:
self.length_sig0_frame = 14
self.length_sig1_frame = 14
# duration of signalling frame
self.duration_sig0_frame = 1.98
self.duration_sig1_frame = 1.98
self.longest_duration = 5.8 # datac5
# hold session id
self.session_id = bytes(1)
@ -149,7 +153,7 @@ class DATA:
# minimum payload for arq burst
# import for avoiding byteorder bug and buffer search area
self.arq_burst_header_size = 3
self.arq_burst_minimum_payload = 126 - self.arq_burst_header_size
self.arq_burst_minimum_payload = 56 - self.arq_burst_header_size
self.arq_burst_maximum_payload = 510 - self.arq_burst_header_size
self.is_IRS = False
@ -2074,13 +2078,13 @@ class DATA:
)
# wait while timeout not reached and our busy state is busy
channel_busy_timeout = time.time() + 10
channel_busy_timeout = time.time() + 5
while static.CHANNEL_BUSY and time.time() < channel_busy_timeout:
threading.Event().wait(0.01)
self.enqueue_frame_for_tx([connection_frame], c2_mode=FREEDV_MODE.sig0.value, copies=1, repeat_delay=0)
timeout = time.time() + 5 + (static.TX_DELAY/1000 * 2)
timeout = time.time() + self.duration_sig1_frame * 3 + (static.TX_DELAY/1000 * 2)
while time.time() < timeout:
threading.Event().wait(0.01)
# Stop waiting if data channel is opened
@ -2784,9 +2788,11 @@ class DATA:
# TODO: Update this to datac13
# Sleep a random amount of time before responding to make it more likely to be
# heard when many stations respond. Each DATAC0 frame is 0.44 sec (440ms) in
# duration, plus overhead. Set the wait interval to be random between 0 and 2s
# in 0.5s increments.
helpers.wait(randrange(0, 20, 5) / 10.0)
# duration, plus overhead. Set the wait interval to be random between 0 and
# self.duration_sig1_frame * 4 == 4 slots
# in self.duration_sig1_frame increments.
self.log.info("[TNC] Waiting for QRV slot...")
helpers.wait(randrange(0, int(self.duration_sig1_frame*4), self.duration_sig1_frame*10 // 10.0))
self.send_data_to_socket_queue(
freedata="tnc-message",
qrv="transmitting",