connectionhandlerpimpl: add more detailed traces on error cases

ARMmbed / mbed-client-classic

DEPRECATED: mbed Client adaptation layer for mbed OS Classic

https://cloud.mbed.com/docs/current

Apache License 2.0

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Closed TeroJaasko closed 7 years ago

TeroJaasko commented 7 years ago

Add more tracing on the error paths to make it easier to find reason for the networking issues.

While here, remove double calls to observer error callback which happened if the init_socket() failed.

yogpan01 commented 7 years ago

rebuild

yogpan01 commented 7 years ago

Unit test scripts need some cleanup to remove unnecessary check for other components. Merging this PR for now.