WalletManagerImpl: reuse existing connection to daemon instead of reconnectivng every time

3 files changed, 35 insertions, 39 deletions

diff --git a/src/wallet/api/wallet2_api.h b/src/wallet/api/wallet2_api.h
index d4e41c5aa..617b6035a 100644
--- a/src/wallet/api/wallet2_api.h
+++ b/src/wallet/api/wallet2_api.h
@@ -956,25 +956,25 @@ struct WalletManager
     virtual void setDaemonAddress(const std::string &address) = 0;
 
     //! returns whether the daemon can be reached, and its version number
-    virtual bool connected(uint32_t *version = NULL) const = 0;
+    virtual bool connected(uint32_t *version = NULL) = 0;
 
     //! returns current blockchain height
-    virtual uint64_t blockchainHeight() const = 0;
+    virtual uint64_t blockchainHeight() = 0;
 
     //! returns current blockchain target height
-    virtual uint64_t blockchainTargetHeight() const = 0;
+    virtual uint64_t blockchainTargetHeight() = 0;
 
     //! returns current network difficulty
-    virtual uint64_t networkDifficulty() const = 0;
+    virtual uint64_t networkDifficulty() = 0;
 
     //! returns current mining hash rate (0 if not mining)
-    virtual double miningHashRate() const = 0;
+    virtual double miningHashRate() = 0;
 
     //! returns current block target
-    virtual uint64_t blockTarget() const = 0;
+    virtual uint64_t blockTarget() = 0;
 
     //! returns true iff mining
-    virtual bool isMining() const = 0;
+    virtual bool isMining() = 0;
 
     //! starts mining with the set number of threads
     virtual bool startMining(const std::string &address, uint32_t threads = 1, bool background_mining = false, bool ignore_battery = true) = 0;
diff --git a/src/wallet/api/wallet_manager.cpp b/src/wallet/api/wallet_manager.cpp
index 80f5780b5..a63716576 100644
--- a/src/wallet/api/wallet_manager.cpp
+++ b/src/wallet/api/wallet_manager.cpp
@@ -47,15 +47,6 @@ namespace epee {
     unsigned int g_test_dbg_lock_sleep = 0;
 }
 
-namespace {
-    template<typename Request, typename Response>
-    bool connect_and_invoke(const std::string& address, const std::string& path, const Request& request, Response& response)
-    {
-        epee::net_utils::http::http_simple_client client{};
-        return client.set_server(address, boost::none) && epee::net_utils::invoke_http_json(path, request, response, client);
-    }
-}
-
 namespace Monero {
 
 Wallet *WalletManagerImpl::createWallet(const std::string &path, const std::string &password,
@@ -193,16 +184,19 @@ std::string WalletManagerImpl::errorString() const
 void WalletManagerImpl::setDaemonAddress(const std::string &address)
 {
     m_daemonAddress = address;
+    if(m_http_client.is_connected())
+        m_http_client.disconnect();
+    m_http_client.set_server(address, boost::none);
 }
 
-bool WalletManagerImpl::connected(uint32_t *version) const
+bool WalletManagerImpl::connected(uint32_t *version)
 {
     epee::json_rpc::request<cryptonote::COMMAND_RPC_GET_VERSION::request> req_t = AUTO_VAL_INIT(req_t);
     epee::json_rpc::response<cryptonote::COMMAND_RPC_GET_VERSION::response, std::string> resp_t = AUTO_VAL_INIT(resp_t);
     req_t.jsonrpc = "2.0";
     req_t.id = epee::serialization::storage_entry(0);
     req_t.method = "get_version";
-    if (!connect_and_invoke(m_daemonAddress, "/json_rpc", req_t, resp_t))
+    if (!epee::net_utils::invoke_http_json("/json_rpc", req_t, resp_t, m_http_client))
       return false;
 
     if (version)
@@ -210,65 +204,65 @@ bool WalletManagerImpl::connected(uint32_t *version) const
     return true;
 }
 
-uint64_t WalletManagerImpl::blockchainHeight() const
+uint64_t WalletManagerImpl::blockchainHeight()
 {
     cryptonote::COMMAND_RPC_GET_INFO::request ireq;
     cryptonote::COMMAND_RPC_GET_INFO::response ires;
 
-    if (!connect_and_invoke(m_daemonAddress, "/getinfo", ireq, ires))
+    if (!epee::net_utils::invoke_http_json("/getinfo", ireq, ires, m_http_client))
       return 0;
     return ires.height;
 }
 
-uint64_t WalletManagerImpl::blockchainTargetHeight() const
+uint64_t WalletManagerImpl::blockchainTargetHeight()
 {
     cryptonote::COMMAND_RPC_GET_INFO::request ireq;
     cryptonote::COMMAND_RPC_GET_INFO::response ires;
 
-    if (!connect_and_invoke(m_daemonAddress, "/getinfo", ireq, ires))
+    if (!epee::net_utils::invoke_http_json("/getinfo", ireq, ires, m_http_client))
       return 0;
     return ires.target_height >= ires.height ? ires.target_height : ires.height;
 }
 
-uint64_t WalletManagerImpl::networkDifficulty() const
+uint64_t WalletManagerImpl::networkDifficulty()
 {
     cryptonote::COMMAND_RPC_GET_INFO::request ireq;
     cryptonote::COMMAND_RPC_GET_INFO::response ires;
 
-    if (!connect_and_invoke(m_daemonAddress, "/getinfo", ireq, ires))
+    if (!epee::net_utils::invoke_http_json("/getinfo", ireq, ires, m_http_client))
       return 0;
     return ires.difficulty;
 }
 
-double WalletManagerImpl::miningHashRate() const
+double WalletManagerImpl::miningHashRate()
 {
     cryptonote::COMMAND_RPC_MINING_STATUS::request mreq;
     cryptonote::COMMAND_RPC_MINING_STATUS::response mres;
 
     epee::net_utils::http::http_simple_client http_client;
-    if (!connect_and_invoke(m_daemonAddress, "/mining_status", mreq, mres))
+    if (!epee::net_utils::invoke_http_json("/mining_status", mreq, mres, m_http_client))
       return 0.0;
     if (!mres.active)
       return 0.0;
     return mres.speed;
 }
 
-uint64_t WalletManagerImpl::blockTarget() const
+uint64_t WalletManagerImpl::blockTarget()
 {
     cryptonote::COMMAND_RPC_GET_INFO::request ireq;
     cryptonote::COMMAND_RPC_GET_INFO::response ires;
 
-    if (!connect_and_invoke(m_daemonAddress, "/getinfo", ireq, ires))
+    if (!epee::net_utils::invoke_http_json("/getinfo", ireq, ires, m_http_client))
         return 0;
     return ires.target;
 }
 
-bool WalletManagerImpl::isMining() const
+bool WalletManagerImpl::isMining()
 {
     cryptonote::COMMAND_RPC_MINING_STATUS::request mreq;
     cryptonote::COMMAND_RPC_MINING_STATUS::response mres;
 
-    if (!connect_and_invoke(m_daemonAddress, "/mining_status", mreq, mres))
+    if (!epee::net_utils::invoke_http_json("/mining_status", mreq, mres, m_http_client))
       return false;
     return mres.active;
 }
@@ -283,7 +277,7 @@ bool WalletManagerImpl::startMining(const std::string &address, uint32_t threads
     mreq.ignore_battery = ignore_battery;
     mreq.do_background_mining = background_mining;
 
-    if (!connect_and_invoke(m_daemonAddress, "/start_mining", mreq, mres))
+    if (!epee::net_utils::invoke_http_json("/start_mining", mreq, mres, m_http_client))
       return false;
     return mres.status == CORE_RPC_STATUS_OK;
 }
@@ -293,7 +287,7 @@ bool WalletManagerImpl::stopMining()
     cryptonote::COMMAND_RPC_STOP_MINING::request mreq;
     cryptonote::COMMAND_RPC_STOP_MINING::response mres;
 
-    if (!connect_and_invoke(m_daemonAddress, "/stop_mining", mreq, mres))
+    if (!epee::net_utils::invoke_http_json("/stop_mining", mreq, mres, m_http_client))
       return false;
     return mres.status == CORE_RPC_STATUS_OK;
 }
diff --git a/src/wallet/api/wallet_manager.h b/src/wallet/api/wallet_manager.h
index 409a6d499..26238b658 100644
--- a/src/wallet/api/wallet_manager.h
+++ b/src/wallet/api/wallet_manager.h
@@ -30,6 +30,7 @@
 
 
 #include "wallet/api/wallet2_api.h"
+#include "net/http_client.h"
 #include <string>
 
 namespace Monero {
@@ -69,13 +70,13 @@ public:
     std::vector<std::string> findWallets(const std::string &path);
     std::string errorString() const;
     void setDaemonAddress(const std::string &address);
-    bool connected(uint32_t *version = NULL) const;
-    uint64_t blockchainHeight() const;
-    uint64_t blockchainTargetHeight() const;
-    uint64_t networkDifficulty() const;
-    double miningHashRate() const;
-    uint64_t blockTarget() const;
-    bool isMining() const;
+    bool connected(uint32_t *version = NULL);
+    uint64_t blockchainHeight();
+    uint64_t blockchainTargetHeight();
+    uint64_t networkDifficulty();
+    double miningHashRate();
+    uint64_t blockTarget();
+    bool isMining();
     bool startMining(const std::string &address, uint32_t threads = 1, bool background_mining = false, bool ignore_battery = true);
     bool stopMining();
     std::string resolveOpenAlias(const std::string &address, bool &dnssec_valid) const;
@@ -84,6 +85,7 @@ private:
     WalletManagerImpl() {}
     friend struct WalletManagerFactory;
     std::string m_daemonAddress;
+    epee::net_utils::http::http_simple_client m_http_client;
     std::string m_errorString;
 };