X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fscript.h;h=2ff23250d2c23a4e27d81a280dd4c7759ce1625c;hb=0a18ce8f4cd1a723f50333945d94c84b45c8d56b;hp=7d4798916957dd279d3666fed66d86e361eafaf4;hpb=7e58f6d48d573135ef9f8b36a09603c414c50ba9;p=novacoin.git

diff --git a/src/script.h b/src/script.h
index 7d47989..2ff2325 100644
--- a/src/script.h
+++ b/src/script.h
@@ -19,6 +19,27 @@ class CTransaction;
 
 static const unsigned int MAX_SCRIPT_ELEMENT_SIZE = 520; // bytes
 
+/* Setting nSequence to this value for every input in a transaction
+ * disables nLockTime. */
+static const uint32_t SEQUENCE_FINAL = 0xffffffff;
+
+/* Threshold for inverted nSequence: below this value it is interpreted
+ * as a relative lock-time, otherwise ignored. */
+static const uint32_t SEQUENCE_THRESHOLD = (1 << 31);
+
+/* If this flag set, CTxIn::nSequence is NOT interpreted as a
+ * relative lock-time. */
+static const uint32_t SEQUENCE_LOCKTIME_DISABLE_FLAG = (1 << 31);
+
+/* If CTxIn::nSequence encodes a relative lock-time and this flag
+ * is set, the relative lock-time has units of 512 seconds,
+ * otherwise it specifies blocks with a granularity of 1. */
+static const uint32_t SEQUENCE_LOCKTIME_TYPE_FLAG = (1 << 22);
+
+/* If CTxIn::nSequence encodes a relative lock-time, this mask is
+ * applied to extract that lock-time from the sequence field. */
+static const uint32_t SEQUENCE_LOCKTIME_MASK = 0x0000ffff;
+
 /** IsMine() return codes */
 enum isminetype
 {
@@ -48,8 +69,8 @@ enum
     SCRIPT_VERIFY_LOW_S     = (1U << 2), // enforce low S values in signatures (depends on STRICTENC)
     SCRIPT_VERIFY_NOCACHE   = (1U << 3), // do not store results in signature cache (but do query it)
     SCRIPT_VERIFY_NULLDUMMY = (1U << 4),  // verify dummy stack item consumed by CHECKMULTISIG is of zero-length
-    SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY = (1U << 9)
-
+    SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY = (1U << 9),
+    SCRIPT_VERIFY_CHECKSEQUENCEVERIFY = (1U << 10)
 };
 
 // Strict verification:
@@ -128,6 +149,7 @@ enum opcodetype
     OP_VERIFY = 0x69,
     OP_RETURN = 0x6a,
     OP_CHECKLOCKTIMEVERIFY = 0xb1,
+    OP_CHECKSEQUENCEVERIFY = 0xb2,
 
     // stack ops
     OP_TOALTSTACK = 0x6b,
@@ -213,7 +235,6 @@ enum opcodetype
 
     // expansion
     OP_NOP1 = 0xb0,
-    OP_NOP3 = 0xb2,
     OP_NOP4 = 0xb3,
     OP_NOP5 = 0xb4,
     OP_NOP6 = 0xb5,