From 8abed301dad5f0ea8ffb1f63bbcfe5b7b1045473 Mon Sep 17 00:00:00 2001
From: Matt Hess <mxhess@web2.whiskymine.io>
Date: Tue, 3 Mar 2026 16:58:17 +0000
Subject: [PATCH] salvium_wallet_scan_mempool is now exported as a C FFI symbol

---
 Cargo.lock                       | 26 ++++++++++++-------------
 Cargo.toml                       |  2 +-
 crates/salvium-ffi/src/wallet.rs | 33 ++++++++++++++++++++++++++++++++
 3 files changed, 47 insertions(+), 14 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 19c8b5d..77bcf52 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1956,7 +1956,7 @@ checksum = "9774ba4a74de5f7b1c1451ed6cd5285a32eddb5cccb8cc655a4e50009e06477f"
 
 [[package]]
 name = "salvium-cli"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "clap",
  "dirs",
@@ -1978,7 +1978,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-consensus"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "hex",
  "salvium-types",
@@ -1990,7 +1990,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-crypto"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "aes-gcm",
  "argon2",
@@ -2016,7 +2016,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-ffi"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "dirs",
  "hex",
@@ -2035,7 +2035,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-miner"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "clap",
  "hex",
@@ -2050,7 +2050,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-miner-gr"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "cc",
  "clap",
@@ -2062,7 +2062,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-miner-v2"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "cc",
  "clap",
@@ -2077,7 +2077,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-multisig"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "curve25519-dalek",
  "hex",
@@ -2093,7 +2093,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-rpc"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "base64",
  "hex",
@@ -2108,7 +2108,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-sync-bench"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "clap",
  "env_logger",
@@ -2125,7 +2125,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-tx"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "curve25519-dalek",
  "getrandom 0.2.17",
@@ -2143,7 +2143,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-types"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "hex",
  "serde",
@@ -2153,7 +2153,7 @@ dependencies = [
 
 [[package]]
 name = "salvium-wallet"
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 dependencies = [
  "aes-gcm",
  "chacha20",
diff --git a/Cargo.toml b/Cargo.toml
index 9adbe42..6669a55 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ members = [
 ]
 
 [workspace.package]
-version = "1.0.7-r016"
+version = "1.0.7-r017"
 edition = "2021"
 license = "LicenseRef-Salvium-RS"
 repository = "https://github.com/salvium/salvium-rs"
diff --git a/crates/salvium-ffi/src/wallet.rs b/crates/salvium-ffi/src/wallet.rs
index 8356a6a..d546ac3 100644
--- a/crates/salvium-ffi/src/wallet.rs
+++ b/crates/salvium-ffi/src/wallet.rs
@@ -481,6 +481,39 @@ fn dispatch_sync_event(event: &salvium_wallet::SyncEvent, cb: SyncCallbackFn) {
     }
 }
 
+// =============================================================================
+// Mempool Scan
+// =============================================================================
+
+/// Scan the mempool for transactions belonging to this wallet.
+///
+/// This is a lightweight alternative to a full sync — it only checks the
+/// daemon's transaction pool for new or dropped transactions relevant to the
+/// wallet's keys.
+///
+/// Returns JSON: `{"new_pool_txs": N, "dropped_pool_txs": N}`
+/// Caller must free with `salvium_string_free()`.
+#[no_mangle]
+pub unsafe extern "C" fn salvium_wallet_scan_mempool(
+    wallet: *mut c_void,
+    daemon: *mut c_void,
+) -> *mut c_char {
+    ffi_try_string(|| {
+        let handle = unsafe { borrow_handle::<WalletHandle>(wallet) }?;
+        let dh = unsafe { borrow_handle::<crate::daemon::DaemonHandle>(daemon) }?;
+        let rt = crate::runtime();
+
+        rt.block_on(async {
+            let result = handle.wallet.scan_mempool(&dh.pool).await.map_err(|e| e.to_string())?;
+            serde_json::to_string(&serde_json::json!({
+                "new_pool_txs": result.new_pool_txs,
+                "dropped_pool_txs": result.dropped_pool_txs,
+            }))
+            .map_err(|e| e.to_string())
+        })
+    })
+}
+
 // =============================================================================
 // Query Functions
 // =============================================================================