BIP144: Serialization, hashes, relay (sender side)

Contains refactorings by Eric Lombrozo.
Contains fixup by Nicolas Dorier.
Contains cleanup of CInv::GetCommand by Alex Morcos

1 files changed, 13 insertions, 33 deletions

diff --git a/src/protocol.cpp b/src/protocol.cpp
index 2f90fb764..247c6c212 100644
--- a/src/protocol.cpp
+++ b/src/protocol.cpp
@@ -41,15 +41,6 @@ const char *GETBLOCKTXN="getblocktxn";
 const char *BLOCKTXN="blocktxn";
 };
 
-static const char* ppszTypeName[] =
-{
-    "ERROR", // Should never occur
-    NetMsgType::TX,
-    NetMsgType::BLOCK,
-    "filtered block", // Should never occur
-    "compact block" // Should never occur
-};
-
 /** All known message types. Keep this in the same order as the list of
  * messages above and in protocol.h.
  */
@@ -166,37 +157,26 @@ CInv::CInv(int typeIn, const uint256& hashIn)
     hash = hashIn;
 }
 
-CInv::CInv(const std::string& strType, const uint256& hashIn)
-{
-    unsigned int i;
-    for (i = 1; i < ARRAYLEN(ppszTypeName); i++)
-    {
-        if (strType == ppszTypeName[i])
-        {
-            type = i;
-            break;
-        }
-    }
-    if (i == ARRAYLEN(ppszTypeName))
-        throw std::out_of_range(strprintf("CInv::CInv(string, uint256): unknown type '%s'", strType));
-    hash = hashIn;
-}
-
 bool operator<(const CInv& a, const CInv& b)
 {
     return (a.type < b.type || (a.type == b.type && a.hash < b.hash));
 }
 
-bool CInv::IsKnownType() const
+std::string CInv::GetCommand() const
 {
-    return (type >= 1 && type < (int)ARRAYLEN(ppszTypeName));
-}
-
-const char* CInv::GetCommand() const
-{
-    if (!IsKnownType())
+    std::string cmd;
+    if (type & MSG_WITNESS_FLAG)
+        cmd.append("witness-");
+    int masked = type & MSG_TYPE_MASK;
+    switch (masked)
+    {
+    case MSG_TX:             return cmd.append(NetMsgType::TX);
+    case MSG_BLOCK:          return cmd.append(NetMsgType::BLOCK);
+    case MSG_FILTERED_BLOCK: return cmd.append(NetMsgType::MERKLEBLOCK);
+    case MSG_CMPCT_BLOCK:    return cmd.append(NetMsgType::CMPCTBLOCK);
+    default:
         throw std::out_of_range(strprintf("CInv::GetCommand(): type=%d unknown type", type));
-    return ppszTypeName[type];
+    }
 }
 
 std::string CInv::ToString() const