From 73c49227a1db9034f63e72eacd68bad0ed205773 Mon Sep 17 00:00:00 2001
From: evoskuil <eric@voskuil.org>
Date: Sun, 12 Jul 2026 00:25:36 -0400
Subject: [PATCH] Add set_prevalid().

---
 .../bitcoin/database/impl/query/batch/prevalid.ipp | 14 ++++++++++++--
 include/bitcoin/database/query.hpp                 |  1 +
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/bitcoin/database/impl/query/batch/prevalid.ipp b/include/bitcoin/database/impl/query/batch/prevalid.ipp
index 20683656a..f2c3097d2 100644
--- a/include/bitcoin/database/impl/query/batch/prevalid.ipp
+++ b/include/bitcoin/database/impl/query/batch/prevalid.ipp
@@ -54,6 +54,17 @@ bool CLASS::purge_prevalids() NOEXCEPT
     // ========================================================================
 }
 
+TEMPLATE
+bool CLASS::set_prevalid(const header_link& link) NOEXCEPT
+{
+    // ========================================================================
+    const auto scope = get_transactor();
+
+    // Clean single allocation failure (e.g. disk full).
+    return store_.prevalid.put(table::prevalid::record{ {}, link });
+    // ========================================================================
+}
+
 TEMPLATE
 bool CLASS::set_prevalids(const header_links& links) NOEXCEPT
 {
@@ -61,8 +72,7 @@ bool CLASS::set_prevalids(const header_links& links) NOEXCEPT
     const auto scope = get_transactor();
 
     // Clean single allocation failure (e.g. disk full).
-    const table::prevalid::put_refs prevalids{ {}, links };
-    return store_.prevalid.put(prevalids);
+    return store_.prevalid.put(table::prevalid::put_refs{ {}, links });
     // ========================================================================
 }
 
diff --git a/include/bitcoin/database/query.hpp b/include/bitcoin/database/query.hpp
index a333aeb34..3295bda40 100644
--- a/include/bitcoin/database/query.hpp
+++ b/include/bitcoin/database/query.hpp
@@ -629,6 +629,7 @@ class query
 
     /// Cache all prevalids.
     header_links get_prevalids() const NOEXCEPT;
+    bool set_prevalid(const header_link& link) NOEXCEPT;
     bool set_prevalids(const header_links& links) NOEXCEPT;
 
     /// Confirmation.