From fa29d5d1fe02d7761fd46fef499e249c09fada68 Mon Sep 17 00:00:00 2001
From: jl777 <jameslee777@yahoo.com>
Date: Tue, 20 Feb 2018 19:04:51 +0200
Subject: [PATCH] estimatesmartfee

---
 iguana/exchanges/LP_include.h |  2 +-
 iguana/exchanges/LP_rpc.c     | 15 +++++++++++++--
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/iguana/exchanges/LP_include.h b/iguana/exchanges/LP_include.h
index c19a2c85e..2fa885d56 100644
--- a/iguana/exchanges/LP_include.h
+++ b/iguana/exchanges/LP_include.h
@@ -305,7 +305,7 @@ struct iguana_info
     int32_t numutxos,notarized,longestchain,firstrefht,firstscanht,lastscanht,height; uint16_t busport,did_addrutxo_reset;
     uint32_t txversion,dPoWtime,lastresetutxo,loadedcache,electrumlist,lastunspent,importedprivkey,lastpushtime,lastutxosync,addr_listunspent_requested,lastutxos,updaterate,counter,inactive,lastmempool,lastgetinfo,ratetime,heighttime,lastmonitor,obooktime;
     uint8_t pubtype,p2shtype,isPoS,wiftype,wiftaddr,taddr,noimportprivkey_flag,userconfirms,isassetchain,maxconfirms;
-    char symbol[128],smartaddr[64],userpass[1024],serverport[128],instantdex_address[64];
+    char symbol[128],smartaddr[64],userpass[1024],serverport[128],instantdex_address[64],estimatefeestr[32];
     // portfolio
     double price_kmd,force,perc,goal,goalperc,relvolume,rate;
     void *electrum; void *ctx;
diff --git a/iguana/exchanges/LP_rpc.c b/iguana/exchanges/LP_rpc.c
index 0e2daec6b..6784d593d 100644
--- a/iguana/exchanges/LP_rpc.c
+++ b/iguana/exchanges/LP_rpc.c
@@ -602,14 +602,17 @@ cJSON *LP_importprivkey(char *symbol,char *wifstr,char *label,int32_t flag)
 
 double _LP_getestimatedrate(struct iguana_info *coin)
 {
-    char buf[512],*retstr=0; int32_t numblocks; cJSON *errjson,*retjson; double rate = 0.00000020;
+    char buf[512],*retstr=0; int32_t numblocks,err=0; cJSON *errjson,*retjson; double rate = 0.00000020;
     if ( coin->rate < 0. || time(NULL) > coin->ratetime+30 )
     {
+        if ( coin->estimatefeestr[0] == 0 )
+            strcpy(coin->estimatefeestr,"estimatefee");
         numblocks = strcmp(coin->symbol,"BTC") == 0 ? 6 : 2;
+again:
         if ( coin->electrum == 0 )
         {
             sprintf(buf,"[%d]",numblocks);
-            retstr = LP_apicall(coin,"estimatefee",buf);
+            retstr = LP_apicall(coin,coin->estimatefeestr,buf);
         }
         else
         {
@@ -621,7 +624,10 @@ double _LP_getestimatedrate(struct iguana_info *coin)
             if ( retstr[0] == '{' && (errjson= cJSON_Parse(retstr)) != 0 )
             {
                 if ( jobj(errjson,"error") != 0 )
+                {
                     rate = 0.;
+                    err++;
+                }
                 free_json(errjson);
             }
             else if ( retstr[0] != '-' )
@@ -638,6 +644,11 @@ double _LP_getestimatedrate(struct iguana_info *coin)
                 coin->ratetime = (uint32_t)time(NULL);
             }
             free(retstr);
+            if ( err == 1 && coin->electrum == 0 && strcmp("BTC",coin->symbol) == 0 )
+            {
+                strcpy(coin->estimatefeestr,"estimatesmartfee");
+                goto again;
+            }
         } else rate = coin->rate;
     } else rate = coin->rate;
     return(rate);