Clarify BIP 152 interaction with classic relay mechanisms #486
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TheBlueMatt
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Jan 5, 2017
In order to do this, we must call ActivateBestChain prior to responding getdata requests for blocks which we announced using compact blocks. For getheaders responses we dont need code changes, but do note that we must reset the bestHeaderSent so that the SendMessages call re-announces the header in question. While we could do something smarter for getblocks, calling ActivateBestChain is simple and more obviously correct, instead of doing something more similar to getheaders. See-also the BIP clarifications at bitcoin/bips#486
TheBlueMatt
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Jan 11, 2017
In order to do this, we must call ActivateBestChain prior to responding getdata requests for blocks which we announced using compact blocks. For getheaders responses we dont need code changes, but do note that we must reset the bestHeaderSent so that the SendMessages call re-announces the header in question. While we could do something smarter for getblocks, calling ActivateBestChain is simple and more obviously correct, instead of doing something more similar to getheaders. See-also the BIP clarifications at bitcoin/bips#486
lateminer
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Jan 3, 2019
In order to do this, we must call ActivateBestChain prior to responding getdata requests for blocks which we announced using compact blocks. For getheaders responses we dont need code changes, but do note that we must reset the bestHeaderSent so that the SendMessages call re-announces the header in question. While we could do something smarter for getblocks, calling ActivateBestChain is simple and more obviously correct, instead of doing something more similar to getheaders. See-also the BIP clarifications at bitcoin/bips#486
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This clarifies some unstated details previously, as well as defines some previously undefined behavior.