From 4a69b4dbe0d7f504811b67c399da7e6d11e4f805 Mon Sep 17 00:00:00 2001
From: Anthony Towns <aj@erisian.com.au>
Date: Fri, 16 Apr 2021 18:33:02 +1000
Subject: [move-only] Move ComputeBlockVersion from validation to versionbits

---
 src/versionbits.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/versionbits.cpp')

diff --git a/src/versionbits.cpp b/src/versionbits.cpp
index 0fbad0a64e..3497fc049e 100644
--- a/src/versionbits.cpp
+++ b/src/versionbits.cpp
@@ -212,6 +212,22 @@ uint32_t VersionBitsCache::Mask(const Consensus::Params& params, Consensus::Depl
     return VersionBitsConditionChecker(pos).Mask(params);
 }
 
+extern VersionBitsCache g_versionbitscache; // removed in next commit
+
+int32_t ComputeBlockVersion(const CBlockIndex* pindexPrev, const Consensus::Params& params)
+{
+    int32_t nVersion = VERSIONBITS_TOP_BITS;
+
+    for (int i = 0; i < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; i++) {
+        ThresholdState state = g_versionbitscache.State(pindexPrev, params, static_cast<Consensus::DeploymentPos>(i));
+        if (state == ThresholdState::LOCKED_IN || state == ThresholdState::STARTED) {
+            nVersion |= g_versionbitscache.Mask(params, static_cast<Consensus::DeploymentPos>(i));
+        }
+    }
+
+    return nVersion;
+}
+
 void VersionBitsCache::Clear()
 {
     LOCK(m_mutex);
-- 
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