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

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

     [ https://issues.apache.org/jira/browse/CELIX-460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Erjan Altena resolved CELIX-460.
--------------------------------
    Resolution: Fixed

Changed msgid type to unsigned int as it is defined for the interface of the serializer.

 

> 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
>            Priority: Major
>
> 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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