Hardware/litex
1
0
Fork 0
mirror of https://github.com/enjoy-digital/litex.git synced 2025-01-04 09:52:26 -05:00
Code Issues Projects Releases Packages Wiki Activity

tools/remote/etherbone/EtherboneIPC/receive_packet: Return 0 in case of TimeoutError.

Browse source
This commit is contained in:
Florent Kermarrec 2025-01-03 15:42:57 +01:00
parent e3dcfbde60
commit eec7733008
1 changed files with 28 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

49
litex/tools/remote/etherbone.py
View file

@ -401,24 +401,31 @@ class EtherboneIPC:
def receive_packet(self, socket, addr_size): def receive_packet(self, socket, addr_size):
assert addr_size in [1, 2, 4, 8] assert addr_size in [1, 2, 4, 8]
header_length = etherbone_packet_header_length + etherbone_record_header_length header_length = etherbone_packet_header_length + etherbone_record_header_length
packet = bytes() packet = bytes()
while len(packet) < header_length: try:
chunk = socket.recv(header_length - len(packet)) while len(packet) < header_length:
if len(chunk) == 0: chunk = socket.recv(header_length - len(packet))
return 0 if len(chunk) == 0:
else: return 0
packet += chunk else:
wcount, rcount = struct.unpack(">BB", packet[header_length-2:]) packet += chunk
counts = wcount + rcount
packet_size = header_length wcount, rcount = struct.unpack(">BB", packet[header_length - 2:])
if wcount != 0: counts = wcount + rcount
packet_size += 4 * (wcount ) + addr_size packet_size = header_length
if rcount != 0: if wcount != 0:
packet_size += (rcount + 1 ) * addr_size packet_size += 4 * (wcount) + addr_size
while len(packet) < packet_size: if rcount != 0:
chunk = socket.recv(packet_size - len(packet)) packet_size += (rcount + 1) * addr_size
if len(chunk) == 0:
return 0 while len(packet) < packet_size:
else: chunk = socket.recv(packet_size - len(packet))
packet += chunk if len(chunk) == 0:
return packet return 0
else:
packet += chunk
return packet
except TimeoutError:
return 0