From bbde6ffefea9587b07a9f8d4043b2dd23ef8c3c5 Mon Sep 17 00:00:00 2001
From: Sebastian Falbesoner <sebastian.falbesoner@gmail.com>
Date: Thu, 20 Jun 2024 17:43:37 +0200
Subject: [PATCH] add node interface method for getting maximum mempool size

---
 src/interfaces/node.h   | 3 +++
 src/node/interfaces.cpp | 1 +
 2 files changed, 4 insertions(+)

diff --git a/src/interfaces/node.h b/src/interfaces/node.h
index 2bb895dd47c..040f30470aa 100644
--- a/src/interfaces/node.h
+++ b/src/interfaces/node.h
@@ -162,6 +162,9 @@ public:
     //! Get mempool dynamic usage.
     virtual size_t getMempoolDynamicUsage() = 0;
 
+    //! Get mempool maximum memory usage.
+    virtual size_t getMempoolMaxUsage() = 0;
+
     //! Get header tip height and time.
     virtual bool getHeaderTip(int& height, int64_t& block_time) = 0;
 
diff --git a/src/node/interfaces.cpp b/src/node/interfaces.cpp
index 2b36f4ceae3..b8880d46db2 100644
--- a/src/node/interfaces.cpp
+++ b/src/node/interfaces.cpp
@@ -273,6 +273,7 @@ public:
     int64_t getTotalBytesSent() override { return m_context->connman ? m_context->connman->GetTotalBytesSent() : 0; }
     size_t getMempoolSize() override { return m_context->mempool ? m_context->mempool->size() : 0; }
     size_t getMempoolDynamicUsage() override { return m_context->mempool ? m_context->mempool->DynamicMemoryUsage() : 0; }
+    size_t getMempoolMaxUsage() override { return m_context->mempool ? m_context->mempool->m_opts.max_size_bytes : 0; }
     bool getHeaderTip(int& height, int64_t& block_time) override
     {
         LOCK(::cs_main);