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detect and ignore duplicates in negentropy sync

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This commit is contained in:
Doug Hoyte
2024-09-04 16:47:23 -04:00
parent e181627842
commit 29a9d653e7
1 changed files with 17 additions and 2 deletions
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19
src/apps/mesh/cmd_sync.cpp
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@ -151,6 +151,7 @@ void cmd_sync(const std::vector<std::string> &subArgs) {
uint64_t inFlightUp = 0;
bool inFlightDown = false; // bool because we can't count on getting every EVENT we request (might've been deleted mid-query)
std::vector<std::string> have, need;
flat_hash_set<std::string> seenHave, seenNeed;
bool syncDone = false;
uint64_t totalHaves = 0, totalNeeds = 0;
Decompressor decomp;
@ -168,6 +169,8 @@ void cmd_sync(const std::vector<std::string> &subArgs) {
try {
auto inputMsg = from_hex(msg.at(2).get_string());
std::vector<std::string> currHave, currNeed;
if (treeId) {
negentropy::storage::BTreeLMDB storageBtree(txn, negentropyDbi, *treeId);
@ -176,11 +179,23 @@ void cmd_sync(const std::vector<std::string> &subArgs) {
Negentropy ne(subStorage, frameSizeLimit);
ne.setInitiator();
neMsg = ne.reconcile(inputMsg, have, need);
neMsg = ne.reconcile(inputMsg, currHave, currNeed);
} else {
Negentropy ne(storageVector, frameSizeLimit);
ne.setInitiator();
neMsg = ne.reconcile(inputMsg, have, need);
neMsg = ne.reconcile(inputMsg, currHave, currNeed);
}
for (auto &id : currHave) {
if (seenHave.contains(id)) continue;
seenHave.insert(id);
have.push_back(std::move(id));
}
for (auto &id : currNeed) {
if (seenNeed.contains(id)) continue;
seenNeed.insert(id);
need.push_back(std::move(id));
}
} catch (std::exception &e) {
LE << "Unable to parse negentropy message from relay: " << e.what();