backported pricing record signature so that mainline code can share a…

… DB with offshore test code

src/blockchain_db/lmdb/db_lmdb.cpp.patch

@@ -35,10 +35,11 @@
          return;
        }
        // Note that there was a schema change within version 0 as well.
-@@ -5227,5 +5230,6 @@ void BlockchainLMDB::migrate_4_5()
+@@ -5227,6 +5230,7 @@ void BlockchainLMDB::migrate_4_5()
        bi.bi_hash = bi_old->bi_hash;
        bi.bi_cum_rct = bi_old->bi_cum_rct;
        bi.bi_long_term_block_weight = bi_old->bi_long_term_block_weight;
 +      memset(&bi.bi_pricing_record, 0, sizeof(offshore::pricing_record));
 
        MDB_val_set(nv, bi);
+       result = mdb_cursor_put(c_cur, (MDB_val *)&zerokval, &nv, MDB_APPENDDUP);

src/offshore/offshore_structs.h

@@ -26,29 +26,30 @@
 // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #pragma once
+#include <cstdint>
 #include "common/pod-class.h"
 
 namespace offshore {
 
 #pragma pack(push, 1)
   POD_CLASS pricing_record {
-    double xAG;
-    double xAU;
-    double xAUD;
-    double xBTC;
-    double xCAN;
-    double xCHF;
-    double xCNY;
-    double xEUR;
-    double xGBP;
-    double xJPY;
-    double xNOK;
-    double xNZD;
-    double xUSD;
-    double unused1;
-    double unused2;
-    double unused3;
-    char signature[32];
+    uint64_t xAG;
+    uint64_t xAU;
+    uint64_t xAUD;
+    uint64_t xBTC;
+    uint64_t xCAN;
+    uint64_t xCHF;
+    uint64_t xCNY;
+    uint64_t xEUR;
+    uint64_t xGBP;
+    uint64_t xJPY;
+    uint64_t xNOK;
+    uint64_t xNZD;
+    uint64_t xUSD;
+    uint64_t unused1;
+    uint64_t unused2;
+    uint64_t unused3;
+    char signature[64];
   };
 #pragma pack(pop)
 }

src/offshore/pricing_handler.cpp

@@ -31,7 +31,7 @@
 namespace offshore {
 
   PricingHandler::PricingHandler()
-    : m_current_record{0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, "\0"}
+    : m_current_record{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "\0"}
   {
   }