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- s/datas/data/ - the warning is now an error - add some checks in modbus.c - add unit tests - remove the TODO item - minor 80 columns changes
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execution.
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MODBUS Messaging on TCP/IP Implementation Guide V1.0b. The transaction identifier is used to associate the future response with the request. So, at a time, on a TCP connection, this identifier must be unique. There are several manners to use the transaction identifier: - For example, it can be used as a simple "TCP sequence number" with a counter which is incremented at each request. - It can also be judiciously used as a smart index or pointer to identify a transaction context in order to memorize the current remote server and the pending MODBUS request.
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libmodbus does not link with c++ code.
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Pahole tool by Arnaldo Carvalho de Melo has been used to found this problem.
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It's slower to pass non aligned values.
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- Reduce the max message length to 256 (PI_M300) - s/size/length/
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- add some unit tests - add PRESET_MULTIPLE_REGISTERS support in manage_query()
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- cleanups in offset/resp_length vars - cleanups in comments - add FORCE_MULTIPLE_COILS in manage_query
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- Add some tests for force_single_coil
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- Two statements on the same line
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- remove a comment about perror (useless) - remove some printf - rename write_ret to ret
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o illegal data value o illegal data address - Better naming of build_query_basis and build_response_basis - build_response_basis can be use by response_exception - Reduce variable declarations - Close 3 FIXME - Add a test in unit-test-master
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- declare some functions static - use uint8_t and uint16_t in various places to reduce memory use, the transition is not complete and will break compilation of some applications - add some new functions to get/set bits from one or many bytes: o set_bits_from_byte o set_bits_from_bytes o get_byte_from_bits - the server (slave) detects a connection closing
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With TCP, automatic reconnect on error may not be desired. It's now possible to adjust the error handling mode.
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Need testing.
