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rename DensePPLNSRing -> DensePPLNSWindow (ltc + btc), SAFE-COSMETIC #87

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Merged
frstrtr merged 2 commits into from
Jun 12, 2026
Merged

rename DensePPLNSRing -> DensePPLNSWindow (ltc + btc), SAFE-COSMETIC #87

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115e4f0
ltc: rename DensePPLNSRing -> DensePPLNSWindow (SAFE-COSMETIC)
frstrtr Jun 12, 2026
52491e9
btc: rename DensePPLNSRing -> DensePPLNSWindow (SAFE-COSMETIC)
frstrtr Jun 12, 2026
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8 changes: 4 additions & 4 deletions src/impl/btc/node.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -12,10 +12,10 @@
#include <iomanip>
#include <random>

// Static members for DensePPLNSRing precomputed decay table
std::vector<uint64_t> btc::DensePPLNSRing::s_decay_table;
uint64_t btc::DensePPLNSRing::s_decay_per = 0;
bool btc::DensePPLNSRing::s_table_initialized = false;
// Static members for DensePPLNSWindow precomputed decay table
std::vector<uint64_t> btc::DensePPLNSWindow::s_decay_table;
uint64_t btc::DensePPLNSWindow::s_decay_per = 0;
bool btc::DensePPLNSWindow::s_table_initialized = false;

// Helper: read current RSS from /proc/self/status (Linux only)
static long get_rss_mb() {
Expand Down
8 changes: 4 additions & 4 deletions src/impl/btc/share_tracker.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -145,7 +145,7 @@ struct PPLNSEntry {
std::vector<unsigned char> script; // payout script (variable-length)
};

class DensePPLNSRing {
class DensePPLNSWindow {
public:
static constexpr uint64_t DECAY_PRECISION = 40;
static constexpr uint64_t DECAY_SCALE = uint64_t(1) << DECAY_PRECISION;
Expand Down Expand Up @@ -244,15 +244,15 @@ class DensePPLNSRing {
};

// ── Head-Level Incremental PPLNS ─────────────────────────────────────────
// Maintains a DensePPLNSRing + cached CumulativeWeights per active head.
// Maintains a DensePPLNSWindow + cached CumulativeWeights per active head.
// When verifying consecutive shares along a chain:
// 1. rebuild() at first share's parent: O(chain_len) — one hash map walk
// 2. extend() for each subsequent share: O(1) ring push + O(chain_len) dense recompute
// Total for N shares: O(chain_len + N × chain_len) sequential ops
// vs current: O(N × chain_len) random hash map ops — ~10x faster per op.

class HeadPPLNS {
DensePPLNSRing m_ring;
DensePPLNSWindow m_ring;
CumulativeWeights m_cached;
bool m_dirty{true};

Expand Down Expand Up @@ -306,7 +306,7 @@ class HeadPPLNS {

bool valid() const { return !m_ring.empty(); }
int32_t window_size() const { return m_ring.size(); }
const DensePPLNSRing& ring() const { return m_ring; }
const DensePPLNSWindow& ring() const { return m_ring; }
};

// --- ShareTracker ---
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8 changes: 4 additions & 4 deletions src/impl/ltc/node.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -12,10 +12,10 @@
#include <iomanip>
#include <random>

// Static members for DensePPLNSRing precomputed decay table
std::vector<uint64_t> ltc::DensePPLNSRing::s_decay_table;
uint64_t ltc::DensePPLNSRing::s_decay_per = 0;
bool ltc::DensePPLNSRing::s_table_initialized = false;
// Static members for DensePPLNSWindow precomputed decay table
std::vector<uint64_t> ltc::DensePPLNSWindow::s_decay_table;
uint64_t ltc::DensePPLNSWindow::s_decay_per = 0;
bool ltc::DensePPLNSWindow::s_table_initialized = false;

// Helper: read current RSS from /proc/self/status (Linux only)
static long get_rss_mb() {
Expand Down
8 changes: 4 additions & 4 deletions src/impl/ltc/share_tracker.hpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -145,7 +145,7 @@ struct PPLNSEntry {
std::vector<unsigned char> script; // payout script (variable-length)
};

class DensePPLNSRing {
class DensePPLNSWindow {
public:
static constexpr uint64_t DECAY_PRECISION = 40;
static constexpr uint64_t DECAY_SCALE = uint64_t(1) << DECAY_PRECISION;
Expand Down Expand Up @@ -244,15 +244,15 @@ class DensePPLNSRing {
};

// ── Head-Level Incremental PPLNS ─────────────────────────────────────────
// Maintains a DensePPLNSRing + cached CumulativeWeights per active head.
// Maintains a DensePPLNSWindow + cached CumulativeWeights per active head.
// When verifying consecutive shares along a chain:
// 1. rebuild() at first share's parent: O(chain_len) — one hash map walk
// 2. extend() for each subsequent share: O(1) ring push + O(chain_len) dense recompute
// Total for N shares: O(chain_len + N × chain_len) sequential ops
// vs current: O(N × chain_len) random hash map ops — ~10x faster per op.

class HeadPPLNS {
DensePPLNSRing m_ring;
DensePPLNSWindow m_ring;
CumulativeWeights m_cached;
bool m_dirty{true};

Expand Down Expand Up @@ -306,7 +306,7 @@ class HeadPPLNS {

bool valid() const { return !m_ring.empty(); }
int32_t window_size() const { return m_ring.size(); }
const DensePPLNSRing& ring() const { return m_ring; }
const DensePPLNSWindow& ring() const { return m_ring; }
};

// --- ShareTracker ---
Expand Down
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