From ff1921805929071d9610793eef5fd9fc11f43135 Mon Sep 17 00:00:00 2001
From: woodser <woodser@protonmail.com>
Date: Sun, 20 Dec 2020 12:57:19 -0500
Subject: [PATCH] support wallet sync rate

---
 src/wallet/monero_wallet.h        | 6 ++++--
 src/wallet/monero_wallet_core.cpp | 5 ++---
 src/wallet/monero_wallet_core.h   | 2 +-
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/wallet/monero_wallet.h b/src/wallet/monero_wallet.h
index 8aecae3..d25f1a5 100644
--- a/src/wallet/monero_wallet.h
+++ b/src/wallet/monero_wallet.h
@@ -460,9 +460,11 @@ namespace monero {
     }
 
     /**
-     * Start an asynchronous thread to continuously synchronize the wallet with the daemon.
+     * Start background synchronizing with a maximum number of seconds between syncs.
+     *
+     * @param sync_rate_in_seconds - maximum number of seconds between wallet syncs for updates (default 10 seconds)
      */
-    virtual void start_syncing() {
+    virtual void start_syncing(uint32_t sync_rate_in_seconds = 10) {
       throw std::runtime_error("start_syncing() not supported");
     }
 
diff --git a/src/wallet/monero_wallet_core.cpp b/src/wallet/monero_wallet_core.cpp
index 6a97424..5b22d7c 100644
--- a/src/wallet/monero_wallet_core.cpp
+++ b/src/wallet/monero_wallet_core.cpp
@@ -76,7 +76,6 @@ namespace monero {
 
   // ------------------------- INITIALIZE CONSTANTS ---------------------------
 
-  static const int DEFAULT_SYNC_INTERVAL_MILLIS = 1000 * 10;   // default refresh interval 10 sec
   static const int DEFAULT_CONNECTION_TIMEOUT_MILLIS = 1000 * 30; // default connection timeout 30 sec
   static const bool STRICT = false; // relies exclusively on blockchain data if true, includes local wallet data if false TODO: good use case to expose externally?
 
@@ -1376,8 +1375,9 @@ namespace monero {
   /**
    * Start automatic syncing as its own thread.
    */
-  void monero_wallet_core::start_syncing() {
+  void monero_wallet_core::start_syncing(uint32_t sync_rate_in_seconds) {
     if (!m_is_connected) throw std::runtime_error("Wallet is not connected to daemon");
+    m_syncing_interval = sync_rate_in_seconds * 1000; // set sync rate // TODO: use ms instead of seconds?
     if (!m_syncing_enabled) {
       m_syncing_enabled = true;
       run_sync_loop();  // sync wallet on loop in background
@@ -3209,7 +3209,6 @@ namespace monero {
     m_rescan_on_sync = false;
     m_syncing_enabled = false;
     m_sync_loop_running = false;
-    m_syncing_interval = DEFAULT_SYNC_INTERVAL_MILLIS;
   }
 
   std::vector<std::shared_ptr<monero_transfer>> monero_wallet_core::get_transfers_aux(const monero_transfer_query& query) const {
diff --git a/src/wallet/monero_wallet_core.h b/src/wallet/monero_wallet_core.h
index 7278363..2ffb9cd 100644
--- a/src/wallet/monero_wallet_core.h
+++ b/src/wallet/monero_wallet_core.h
@@ -204,7 +204,7 @@ namespace monero {
     monero_sync_result sync(monero_wallet_listener& listener) override;
     monero_sync_result sync(uint64_t start_height) override;
     monero_sync_result sync(uint64_t start_height, monero_wallet_listener& listener) override;
-    void start_syncing() override;
+    void start_syncing(uint32_t sync_rate) override;
     void stop_syncing() override;
     void rescan_spent() override;
     void rescan_blockchain() override;