diff options
Diffstat (limited to 'src/addrman.cpp')
-rw-r--r-- | src/addrman.cpp | 91 |
1 files changed, 31 insertions, 60 deletions
diff --git a/src/addrman.cpp b/src/addrman.cpp index afaa040b0f..69ad13a912 100644 --- a/src/addrman.cpp +++ b/src/addrman.cpp @@ -736,68 +736,39 @@ std::pair<CAddress, NodeSeconds> AddrManImpl::Select_(bool newOnly) const bucket_count = ADDRMAN_NEW_BUCKET_COUNT; } - if (search_tried) { - // use a tried node - double fChanceFactor = 1.0; - while (1) { - // Pick a tried bucket, and an initial position in that bucket. - int nKBucket = insecure_rand.randrange(bucket_count); - int nKBucketPos = insecure_rand.randrange(ADDRMAN_BUCKET_SIZE); - // Iterate over the positions of that bucket, starting at the initial one, - // and looping around. - int i; - for (i = 0; i < ADDRMAN_BUCKET_SIZE; ++i) { - int position = (nKBucketPos + i) % ADDRMAN_BUCKET_SIZE; - int node_id = GetEntry(search_tried, nKBucket, position); - if (node_id != -1) break; - } - // If the bucket is entirely empty, start over with a (likely) different one. - if (i == ADDRMAN_BUCKET_SIZE) continue; - // Find the entry to return. - int position = (nKBucketPos + i) % ADDRMAN_BUCKET_SIZE; - int nId = GetEntry(search_tried, nKBucket, position); - const auto it_found{mapInfo.find(nId)}; - assert(it_found != mapInfo.end()); - const AddrInfo& info{it_found->second}; - // With probability GetChance() * fChanceFactor, return the entry. - if (insecure_rand.randbits(30) < fChanceFactor * info.GetChance() * (1 << 30)) { - LogPrint(BCLog::ADDRMAN, "Selected %s from tried\n", info.ToStringAddrPort()); - return {info, info.m_last_try}; - } - // Otherwise start over with a (likely) different bucket, and increased chance factor. - fChanceFactor *= 1.2; + double fChanceFactor = 1.0; + while (1) { + // Pick a bucket, and an initial position in that bucket. + int nBucket = insecure_rand.randrange(bucket_count); + int nBucketPos = insecure_rand.randrange(ADDRMAN_BUCKET_SIZE); + + // Iterate over the positions of that bucket, starting at the initial one, + // and looping around. + int i; + for (i = 0; i < ADDRMAN_BUCKET_SIZE; ++i) { + int position = (nBucketPos + i) % ADDRMAN_BUCKET_SIZE; + int node_id = GetEntry(search_tried, nBucket, position); + if (node_id != -1) break; } - } else { - // use a new node - double fChanceFactor = 1.0; - while (1) { - // Pick a new bucket, and an initial position in that bucket. - int nUBucket = insecure_rand.randrange(bucket_count); - int nUBucketPos = insecure_rand.randrange(ADDRMAN_BUCKET_SIZE); - // Iterate over the positions of that bucket, starting at the initial one, - // and looping around. - int i; - for (i = 0; i < ADDRMAN_BUCKET_SIZE; ++i) { - int position = (nUBucketPos + i) % ADDRMAN_BUCKET_SIZE; - int node_id = GetEntry(search_tried, nUBucket, position); - if (node_id != -1) break; - } - // If the bucket is entirely empty, start over with a (likely) different one. - if (i == ADDRMAN_BUCKET_SIZE) continue; - // Find the entry to return. - int position = (nUBucketPos + i) % ADDRMAN_BUCKET_SIZE; - int nId = GetEntry(search_tried, nUBucket, position); - const auto it_found{mapInfo.find(nId)}; - assert(it_found != mapInfo.end()); - const AddrInfo& info{it_found->second}; - // With probability GetChance() * fChanceFactor, return the entry. - if (insecure_rand.randbits(30) < fChanceFactor * info.GetChance() * (1 << 30)) { - LogPrint(BCLog::ADDRMAN, "Selected %s from new\n", info.ToStringAddrPort()); - return {info, info.m_last_try}; - } - // Otherwise start over with a (likely) different bucket, and increased chance factor. - fChanceFactor *= 1.2; + + // If the bucket is entirely empty, start over with a (likely) different one. + if (i == ADDRMAN_BUCKET_SIZE) continue; + + // Find the entry to return. + int position = (nBucketPos + i) % ADDRMAN_BUCKET_SIZE; + int nId = GetEntry(search_tried, nBucket, position); + const auto it_found{mapInfo.find(nId)}; + assert(it_found != mapInfo.end()); + const AddrInfo& info{it_found->second}; + + // With probability GetChance() * fChanceFactor, return the entry. + if (insecure_rand.randbits(30) < fChanceFactor * info.GetChance() * (1 << 30)) { + LogPrint(BCLog::ADDRMAN, "Selected %s from %s\n", info.ToStringAddrPort(), search_tried ? "tried" : "new"); + return {info, info.m_last_try}; } + + // Otherwise start over with a (likely) different bucket, and increased chance factor. + fChanceFactor *= 1.2; } } |