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relative time locking improvements

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This commit is contained in:
Craig Raw 2020-04-06 14:53:16 +02:00
parent 130fea0937
commit 9d15c27bfd
3 changed files with 19 additions and 5 deletions
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4
src/main/java/com/sparrowwallet/drongo/protocol/Transaction.java
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@ -69,6 +69,10 @@ public class Transaction extends TransactionPart {
return false; return false;
} }
public boolean isRelativeLocktimeAllowed() {
return version >= 2L;
}
public boolean isReplaceByFee() { public boolean isReplaceByFee() {
if(locktime == 0) return false; if(locktime == 0) return false;

16
src/main/java/com/sparrowwallet/drongo/protocol/TransactionInput.java
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@ -8,8 +8,10 @@ import java.io.OutputStream;
public class TransactionInput extends TransactionPart { public class TransactionInput extends TransactionPart {
public static final long SEQUENCE_LOCKTIME_DISABLED = 4294967295L; public static final long SEQUENCE_LOCKTIME_DISABLED = 4294967295L;
public static final long SEQUENCE_RBF_ENABLED = 4294967293L; public static final long SEQUENCE_RBF_ENABLED = 4294967293L;
public static final long MAX_RELATIVE_TIMELOCK = 0x40FFFF; public static final long MAX_RELATIVE_TIMELOCK = 2147483647L;
public static final long MAX_RELATIVE_TIMELOCK_IN_BLOCKS = 0xFFFF; public static final long RELATIVE_TIMELOCK_VALUE_MASK = 0xFFFF;
public static final long RELATIVE_TIMELOCK_TYPE_FLAG = 0x400000;
public static final int RELATIVE_TIMELOCK_SECONDS_INCREMENT = 512;
// Allows for altering transactions after they were broadcast. Values below NO_SEQUENCE-1 mean it can be altered. // Allows for altering transactions after they were broadcast. Values below NO_SEQUENCE-1 mean it can be altered.
private long sequence; private long sequence;
@ -113,15 +115,19 @@ public class TransactionInput extends TransactionPart {
} }
public boolean isRelativeTimeLocked() { public boolean isRelativeTimeLocked() {
return sequence <= MAX_RELATIVE_TIMELOCK; return getTransaction().isRelativeLocktimeAllowed() && sequence <= MAX_RELATIVE_TIMELOCK;
} }
public boolean isRelativeTimeLockedInBlocks() { public boolean isRelativeTimeLockedInBlocks() {
return sequence <= MAX_RELATIVE_TIMELOCK_IN_BLOCKS; return isRelativeTimeLocked() && ((sequence & RELATIVE_TIMELOCK_TYPE_FLAG) == 0);
} }
public long getRelativeLocktime() { public long getRelativeLocktime() {
return sequence & MAX_RELATIVE_TIMELOCK_IN_BLOCKS; return sequence & RELATIVE_TIMELOCK_VALUE_MASK;
}
public Transaction getTransaction() {
return (Transaction)getParent();
} }
protected void bitcoinSerializeToStream(OutputStream stream) throws IOException { protected void bitcoinSerializeToStream(OutputStream stream) throws IOException {

4
src/main/java/com/sparrowwallet/drongo/protocol/TransactionPart.java
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@ -34,6 +34,10 @@ public abstract class TransactionPart {
protected abstract void parse() throws ProtocolException; protected abstract void parse() throws ProtocolException;
public TransactionPart getParent() {
return parent;
}
public final void setParent(TransactionPart parent) { public final void setParent(TransactionPart parent) {
this.parent = parent; this.parent = parent;
} }