all decoders: introduce a reset() method

Move initialization code of protocol decoders from the constructor to a
new reset() helper method. The libsigrokdecode backend could run this
method several times to clear the decoder's internal state, before new
data from another acquisition gets fed to decode() calls.

1 files changed, 3 insertions, 0 deletions

diff --git a/decoders/i2cdemux/pd.py b/decoders/i2cdemux/pd.py
index c6ab53d..2495e84 100644
--- a/decoders/i2cdemux/pd.py
+++ b/decoders/i2cdemux/pd.py
@@ -30,6 +30,9 @@ class Decoder(srd.Decoder):
     outputs = [] # TODO: Only known at run-time.
 
     def __init__(self):
+        self.reset()
+
+    def reset(self):
         self.packets = [] # Local cache of I²C packets
         self.slaves = [] # List of known slave addresses
         self.stream = -1 # Current output stream