allow user I/O in millinero, micronero, nanonero, piconero

src/cryptonote_basic/cryptonote_format_utils.cpp

@@ -31,6 +31,7 @@
 #include "include_base_utils.h"
 using namespace epee;
 
+#include <atomic>
 #include "cryptonote_format_utils.h"
 #include "cryptonote_config.h"
 #include "crypto/crypto.h"
@@ -65,6 +66,8 @@ static const uint64_t valid_decomposed_outputs[] = {
   (uint64_t)10000000000000000000ull
 };
 
+static std::atomic<unsigned int> default_decimal_point(CRYPTONOTE_DISPLAY_DECIMAL_POINT);
+
 namespace cryptonote
 {
   //---------------------------------------------------------------
@@ -142,12 +145,12 @@ namespace cryptonote
     if (std::string::npos != point_index)
     {
       fraction_size = str_amount.size() - point_index - 1;
-      while (CRYPTONOTE_DISPLAY_DECIMAL_POINT < fraction_size && '0' == str_amount.back())
+      while (default_decimal_point < fraction_size && '0' == str_amount.back())
       {
         str_amount.erase(str_amount.size() - 1, 1);
         --fraction_size;
       }
-      if (CRYPTONOTE_DISPLAY_DECIMAL_POINT < fraction_size)
+      if (default_decimal_point < fraction_size)
         return false;
       str_amount.erase(point_index, 1);
     }
@@ -159,9 +162,9 @@ namespace cryptonote
     if (str_amount.empty())
       return false;
 
-    if (fraction_size < CRYPTONOTE_DISPLAY_DECIMAL_POINT)
+    if (fraction_size < default_decimal_point)
     {
-      str_amount.append(CRYPTONOTE_DISPLAY_DECIMAL_POINT - fraction_size, '0');
+      str_amount.append(default_decimal_point - fraction_size, '0');
     }
 
     return string_tools::get_xtype_from_string(amount, str_amount);
@@ -504,14 +507,59 @@ namespace cryptonote
     cn_fast_hash(blob.data(), blob.size(), res);
   }
   //---------------------------------------------------------------
-  std::string print_money(uint64_t amount)
+  void set_default_decimal_point(unsigned int decimal_point)
   {
-    std::string s = std::to_string(amount);
-    if(s.size() < CRYPTONOTE_DISPLAY_DECIMAL_POINT+1)
+    switch (decimal_point)
     {
-      s.insert(0, CRYPTONOTE_DISPLAY_DECIMAL_POINT+1 - s.size(), '0');
+      case 12:
+      case 9:
+      case 6:
+      case 3:
+      case 0:
+        default_decimal_point = decimal_point;
+        break;
+      default:
+        ASSERT_MES_AND_THROW("Invalid decimal point specificatin: " << decimal_point);
     }
-    s.insert(s.size() - CRYPTONOTE_DISPLAY_DECIMAL_POINT, ".");
+  }
+  //---------------------------------------------------------------
+  unsigned int get_default_decimal_point()
+  {
+    return default_decimal_point;
+  }
+  //---------------------------------------------------------------
+  std::string get_unit(unsigned int decimal_point)
+  {
+    if (decimal_point == (unsigned int)-1)
+      decimal_point = default_decimal_point;
+    switch (std::atomic_load(&default_decimal_point))
+    {
+      case 12:
+        return "monero";
+      case 9:
+        return "millinero";
+      case 6:
+        return "micronero";
+      case 3:
+        return "nanonero";
+      case 0:
+        return "piconero";
+      default:
+        ASSERT_MES_AND_THROW("Invalid decimal point specificatin: " << default_decimal_point);
+    }
+  }
+  //---------------------------------------------------------------
+  std::string print_money(uint64_t amount, unsigned int decimal_point)
+  {
+    if (decimal_point == (unsigned int)-1)
+      decimal_point = default_decimal_point;
+    std::string s = std::to_string(amount);
+    if(s.size() < decimal_point+1)
+    {
+      s.insert(0, decimal_point+1 - s.size(), '0');
+    }
+    if (decimal_point > 0)
+      s.insert(s.size() - decimal_point, ".");
     return s;
   }
   //---------------------------------------------------------------

src/cryptonote_basic/cryptonote_format_utils.h

@@ -102,7 +102,10 @@ namespace cryptonote
   uint64_t get_block_height(const block& b);
   std::vector<uint64_t> relative_output_offsets_to_absolute(const std::vector<uint64_t>& off);
   std::vector<uint64_t> absolute_output_offsets_to_relative(const std::vector<uint64_t>& off);
-  std::string print_money(uint64_t amount);
+  void set_default_decimal_point(unsigned int decimal_point = CRYPTONOTE_DISPLAY_DECIMAL_POINT);
+  unsigned int get_default_decimal_point();
+  std::string get_unit(unsigned int decimal_point = -1);
+  std::string print_money(uint64_t amount, unsigned int decimal_point = -1);
   //---------------------------------------------------------------
   template<class t_object>
   bool t_serializable_object_to_blob(const t_object& to, blobdata& b_blob)

src/simplewallet/simplewallet.cpp

@@ -590,6 +590,36 @@ bool simple_wallet::set_ask_password(const std::vector<std::string> &args/* = st
   return true;
 }
 
+bool simple_wallet::set_unit(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
+{
+  const std::string &unit = args[1];
+  unsigned int decimal_point = CRYPTONOTE_DISPLAY_DECIMAL_POINT;
+
+  if (unit == "monero")
+    decimal_point = CRYPTONOTE_DISPLAY_DECIMAL_POINT;
+  else if (unit == "millinero")
+    decimal_point = CRYPTONOTE_DISPLAY_DECIMAL_POINT - 3;
+  else if (unit == "micronero")
+    decimal_point = CRYPTONOTE_DISPLAY_DECIMAL_POINT - 6;
+  else if (unit == "nanonero")
+    decimal_point = CRYPTONOTE_DISPLAY_DECIMAL_POINT - 9;
+  else if (unit == "piconero")
+    decimal_point = 0;
+  else
+  {
+    fail_msg_writer() << tr("invalid unit");
+    return true;
+  }
+
+  const auto pwd_container = get_and_verify_password();
+  if (pwd_container)
+  {
+    m_wallet->set_default_decimal_point(decimal_point);
+    m_wallet->rewrite(m_wallet_file, pwd_container->password());
+  }
+  return true;
+}
+
 bool simple_wallet::help(const std::vector<std::string> &args/* = std::vector<std::string>()*/)
 {
   success_msg_writer() << get_commands_str();
@@ -629,7 +659,7 @@ simple_wallet::simple_wallet()
   m_cmd_binder.set_handler("viewkey", boost::bind(&simple_wallet::viewkey, this, _1), tr("Display private view key"));
   m_cmd_binder.set_handler("spendkey", boost::bind(&simple_wallet::spendkey, this, _1), tr("Display private spend key"));
   m_cmd_binder.set_handler("seed", boost::bind(&simple_wallet::seed, this, _1), tr("Display Electrum-style mnemonic seed"));
-  m_cmd_binder.set_handler("set", boost::bind(&simple_wallet::set_variable, this, _1), tr("Available options: seed language - set wallet seed language; always-confirm-transfers <1|0> - whether to confirm unsplit txes; print-ring-members <1|0> - whether to print detailed information about ring members during confirmation; store-tx-info <1|0> - whether to store outgoing tx info (destination address, payment ID, tx secret key) for future reference; default-mixin <n> - set default mixin (default is 4); auto-refresh <1|0> - whether to automatically sync new blocks from the daemon; refresh-type <full|optimize-coinbase|no-coinbase|default> - set wallet refresh behaviour; priority [1|2|3] - normal/elevated/priority fee; confirm-missing-payment-id <1|0>; ask-password <1|0>"));
+  m_cmd_binder.set_handler("set", boost::bind(&simple_wallet::set_variable, this, _1), tr("Available options: seed language - set wallet seed language; always-confirm-transfers <1|0> - whether to confirm unsplit txes; print-ring-members <1|0> - whether to print detailed information about ring members during confirmation; store-tx-info <1|0> - whether to store outgoing tx info (destination address, payment ID, tx secret key) for future reference; default-mixin <n> - set default mixin (default is 4); auto-refresh <1|0> - whether to automatically sync new blocks from the daemon; refresh-type <full|optimize-coinbase|no-coinbase|default> - set wallet refresh behaviour; priority [1|2|3] - normal/elevated/priority fee; confirm-missing-payment-id <1|0>; ask-password <1|0>; unit <monero|millinero|micronero|nanonero|piconero> - set default monero (sub-)unit"));
   m_cmd_binder.set_handler("rescan_spent", boost::bind(&simple_wallet::rescan_spent, this, _1), tr("Rescan blockchain for spent outputs"));
   m_cmd_binder.set_handler("get_tx_key", boost::bind(&simple_wallet::get_tx_key, this, _1), tr("Get transaction key (r) for a given <txid>"));
   m_cmd_binder.set_handler("check_tx_key", boost::bind(&simple_wallet::check_tx_key, this, _1), tr("Check amount going to <address> in <txid>"));
@@ -663,6 +693,7 @@ bool simple_wallet::set_variable(const std::vector<std::string> &args)
     success_msg_writer() << "priority = " << m_wallet->get_default_priority();
     success_msg_writer() << "confirm-missing-payment-id = " << m_wallet->confirm_missing_payment_id();
     success_msg_writer() << "ask-password = " << m_wallet->ask_password();
+    success_msg_writer() << "unit = " << cryptonote::get_unit(m_wallet->get_default_decimal_point());
     return true;
   }
   else
@@ -798,6 +829,19 @@ bool simple_wallet::set_variable(const std::vector<std::string> &args)
         return true;
       }
     }
+    else if (args[0] == "unit")
+    {
+      if (args.size() <= 1)
+      {
+        fail_msg_writer() << tr("set unit: needs an argument (monero, millinero, micronero, nanop, piconero)");
+        return true;
+      }
+      else
+      {
+        set_unit(args);
+        return true;
+      }
+    }
   }
   fail_msg_writer() << tr("set: unrecognized argument(s)");
   return true;

src/simplewallet/simplewallet.h

@@ -116,6 +116,7 @@ namespace cryptonote
     bool set_refresh_type(const std::vector<std::string> &args = std::vector<std::string>());
     bool set_confirm_missing_payment_id(const std::vector<std::string> &args = std::vector<std::string>());
     bool set_ask_password(const std::vector<std::string> &args = std::vector<std::string>());
+    bool set_unit(const std::vector<std::string> &args = std::vector<std::string>());
     bool help(const std::vector<std::string> &args = std::vector<std::string>());
     bool start_mining(const std::vector<std::string> &args);
     bool stop_mining(const std::vector<std::string> &args);

src/wallet/wallet2.cpp

@@ -1880,6 +1880,9 @@ bool wallet2::store_keys(const std::string& keys_file_name, const std::string& p
   value2.SetInt(m_ask_password ? 1 :0);
   json.AddMember("ask_password", value2, json.GetAllocator());
 
+  value2.SetInt(cryptonote::get_default_decimal_point());
+  json.AddMember("default_decimal_point", value2, json.GetAllocator());
+
   // Serialize the JSON object
   rapidjson::StringBuffer buffer;
   rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
@@ -2010,6 +2013,8 @@ bool wallet2::load_keys(const std::string& keys_file_name, const std::string& pa
     m_confirm_missing_payment_id = field_confirm_missing_payment_id;
     GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, ask_password, int, Int, false, true);
     m_ask_password = field_ask_password;
+    GET_FIELD_FROM_JSON_RETURN_ON_ERROR(json, default_decimal_point, int, Int, false, CRYPTONOTE_DISPLAY_DECIMAL_POINT);
+    cryptonote::set_default_decimal_point(field_default_decimal_point);
   }
 
   const cryptonote::account_keys& keys = m_account.get_keys();
@@ -2274,6 +2279,16 @@ bool wallet2::parse_payment_id(const std::string& payment_id_str, crypto::hash&
   return false;
 }
 //----------------------------------------------------------------------------------------------------
+void wallet2::set_default_decimal_point(unsigned int decimal_point)
+{
+  cryptonote::set_default_decimal_point(decimal_point);
+}
+//----------------------------------------------------------------------------------------------------
+unsigned int wallet2::get_default_decimal_point() const
+{
+  return cryptonote::get_default_decimal_point();
+}
+//----------------------------------------------------------------------------------------------------
 bool wallet2::prepare_file_names(const std::string& file_path)
 {
   do_prepare_file_names(file_path, m_keys_file, m_wallet_file);

src/wallet/wallet2.h

@@ -510,6 +510,8 @@ namespace tools
     void confirm_missing_payment_id(bool always) { m_confirm_missing_payment_id = always; }
     bool ask_password() const { return m_ask_password; }
     void ask_password(bool always) { m_ask_password = always; }
+    void set_default_decimal_point(unsigned int decimal_point);
+    unsigned int get_default_decimal_point() const;
 
     bool get_tx_key(const crypto::hash &txid, crypto::secret_key &tx_key) const;