extended api for wallet

src/simplewallet/simplewallet.cpp

@@ -768,7 +768,7 @@ bool simple_wallet::list_recent_transfers(const std::vector<std::string>& args)
   std::vector<tools::wallet_public::wallet_transfer_info> recent;
   uint64_t total = 0;
   uint64_t last_index = 0;
-  m_wallet->get_recent_transfers_history(recent, std::stoll(args[0]), std::stoll(args[1]), total, last_index, false);
+  m_wallet->get_recent_transfers_history(recent, std::stoll(args[0]), std::stoll(args[1]), total, last_index, false, false);
   m_wallet->get_unconfirmed_transfers(unconfirmed, false);
   //workaround for missed fee
   

src/wallet/wallet2.cpp

@@ -3192,29 +3192,49 @@ uint64_t wallet2::get_transfer_entries_count()
   return m_transfers.size();
 }
 //----------------------------------------------------------------------------------------------------
-void wallet2::get_recent_transfers_history(std::vector<wallet_public::wallet_transfer_info>& trs, size_t offset, size_t count, uint64_t& total, uint64_t& last_item_index, bool exclude_mining_txs)
+
+template<typename callback_t, typename iterator_t>
+bool enum_container(iterator_t it_begin, iterator_t it_end, callback_t cb)
+{
+  for (iterator_t it = it_begin; it != it_end; it++)
+  {
+    if (!cb(*it, it - it_begin))
+      return true;
+  }
+  return true;
+}
+//----------------------------------------------------------------------------------------------------
+void wallet2::get_recent_transfers_history(std::vector<wallet_public::wallet_transfer_info>& trs, size_t offset, size_t count, uint64_t& total, uint64_t& last_item_index, bool exclude_mining_txs, bool start_from_end)
 {
   if (!count || offset >= m_transfer_history.size())
     return;
 
-  for (auto it = m_transfer_history.rbegin() + offset; it != m_transfer_history.rend(); it++)
-  {
+  auto cb = [&](wallet_public::wallet_transfer_info& wti, size_t local_offset) {
+  
     if (exclude_mining_txs)
     {
-      if(currency::is_coinbase(it->tx))
-        continue;
+      if (currency::is_coinbase(wti.tx))
+        return true;
     }
-    trs.push_back(*it);
+    trs.push_back(wti);
     load_wallet_transfer_info_flags(trs.back());
-    last_item_index = it - m_transfer_history.rbegin();
+    last_item_index = offset + local_offset;
     trs.back().transfer_internal_index = last_item_index;
-    
+
     if (trs.size() >= count)
     {
-      break;
+      return false;
     }
-  }
+    return true;
+  };
+  
+  if(start_from_end)
+    enum_container(m_transfer_history.rbegin() + offset, m_transfer_history.rend(), cb);
+  else 
+    enum_container(m_transfer_history.begin() + offset, m_transfer_history.end(), cb);
+
   total = m_transfer_history.size();
+
 }
 //----------------------------------------------------------------------------------------------------
 bool wallet2::get_transfer_address(const std::string& adr_str, currency::account_public_address& addr, std::string& payment_id)

src/wallet/wallet2.h

@@ -509,7 +509,7 @@ namespace tools
     currency::account_base& get_account() { return m_account; }
     const currency::account_base& get_account() const { return m_account; }
 
-    void get_recent_transfers_history(std::vector<wallet_public::wallet_transfer_info>& trs, size_t offset, size_t count, uint64_t& total, uint64_t& last_item_index, bool exclude_mining_txs = false);
+    void get_recent_transfers_history(std::vector<wallet_public::wallet_transfer_info>& trs, size_t offset, size_t count, uint64_t& total, uint64_t& last_item_index, bool exclude_mining_txs = false, bool start_from_end = true);
     uint64_t get_recent_transfers_total_count();
     uint64_t get_transfer_entries_count();
     void get_unconfirmed_transfers(std::vector<wallet_public::wallet_transfer_info>& trs, bool exclude_mining_txs = false);

src/wallet/wallet_public_structs_defs.h

@@ -318,6 +318,10 @@ namespace wallet_public
     END_KV_SERIALIZE_MAP()
   };
 
+
+#define ORDER_FROM_BEGIN_TO_END        "FROM_BEGIN_TO_END"
+#define ORDER_FROM_FROM_END_TO_BEGIN   "FROM_END_TO_BEGIN"
+
   struct COMMAND_RPC_GET_RECENT_TXS_AND_INFO
   {
     struct request
@@ -338,12 +342,14 @@ namespace wallet_public
       */
       bool update_provision_info;  
       bool exclude_mining_txs;
+      std::string order; // "FROM_BEGIN_TO_END" or "FROM_END_TO_BEGIN"
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(offset)
         KV_SERIALIZE(count)
         KV_SERIALIZE(update_provision_info)
         KV_SERIALIZE(exclude_mining_txs)
+        KV_SERIALIZE(order)
       END_KV_SERIALIZE_MAP()
     };
 

src/wallet/wallet_rpc_server.cpp

@@ -252,7 +252,12 @@ namespace tools
       if (req.offset == 0)
         m_wallet.get_unconfirmed_transfers(res.transfers, req.exclude_mining_txs);
       
-      m_wallet.get_recent_transfers_history(res.transfers, req.offset, req.count, res.total_transfers, res.last_item_index, req.exclude_mining_txs);
+      bool start_from_end = true;
+      if (req.order == ORDER_FROM_BEGIN_TO_END)
+      {
+        start_from_end = false;
+      }
+      m_wallet.get_recent_transfers_history(res.transfers, req.offset, req.count, res.total_transfers, res.last_item_index, req.exclude_mining_txs, start_from_end);
 
       return true;
     }