comram 0.0.9

shared ram based data distribution lib

README

Project Scope:

ramshare:

Create data structures in shared memory based on a data structure file. Read and write to data structure tag. Data structure tags can be accessed system-wide.

procon:

producer:

Creates a socket server and either connect or create shared data structure. Consumers can connect to producer, and all data from data structure will be transferred to connected consumers periodic.

consumer:

Connects to producer, either creates or connects to shared data structure. Shared data structure will be overwritten periodic, so shared data structure is read only on consumer site.

Data structure .xml file:

<config>
    <connection_status LENGTH="20" TYPE="string" INIT_VALUE="no connection"  DESCRIPTION="status of connection" > </connection_status>
    <tag_1 LENGTH="10" TYPE="int" > </tag_1>
    <timestamp LENGTH="20" TYPE="float" > </timestamp>
    <status LENGTH="100" TYPE="string" ></status>
</config>

Required tags:

For produced / consumed data structures, "connection_status" is required.

Required members:

tag_1 = reference name, used to read or write from data structure.

LENGTH = tag length in bytes

Optional members

TYPE = tag type, INIT_VALUE = initial tag value

DESCRIPTION = description of tag

Known issues

tag lenght under under 2 byte not possible