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Wayne Davison authored
Files-from data is now sent as multiplexed I/O so that it can mingle with any messages (such as debug output). Requires protocol 31. Protocol 31 no longer disables output verbosity in a couple instances that used to cause protocol issues. Got rid of MSG_* messages that have implied raw data that follows after them. We instead send a negative index value as a part of the raw data stream, which is guaranteed to be output together with the following data. This only affects the (in-progress) protocol 31 and the (self- contained) communication stream from the receiver to the generator. Added --debug=IO and improved --debug=FLIST. Some --debug=IO output requires --msgs2stderr to be used to see it (i.e. sending a message about sending a message would send another message, ad infinitum).
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