[jira] [Created] (CELIX-460) msg not found in pub/sub serializer map due to signed/unsigned difference

["Erjan Altena (JIRA)" <ji...@apache.org>]

Erjan Altena created CELIX-460:
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             Summary: msg not found in pub/sub serializer map due to signed/unsigned difference
                 Key: CELIX-460
                 URL: https://issues.apache.org/jira/browse/CELIX-460
             Project: Celix
          Issue Type: Bug
          Components: PubSubAdmin
    Affects Versions: next
            Reporter: Erjan Altena


The pub sub serializer interface has defined the msg Id as an unsigned int. The Header message of ZMQ defines it as a signed int.

The ID is casted to a 64 bit pointer to be used as a key in the msg map. When a msg is received the id in the header (which is signed) is alsoc casted to a 64 bit pointer

If the MSB of an unsigned type is set and it is promoted to a bigger type, it will be prefixed with zeros, a signed type will be prefixed with ones. This gives a difference in the key in the map and serialization information can not be found on reception side.

 

ZMQ should use unsigned types as a key.

 

 

 

 



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