From fa877503a4388756dca9d632952c2f302e995786 Mon Sep 17 00:00:00 2001
From: Braydon Fuller <courier@braydon.com>
Date: Thu, 31 Jan 2019 13:02:40 -0800
Subject: [PATCH] blockchain: enable segwit for regtest

---
 lib/blockchain/chain.js   |  3 +++
 lib/blockchain/chaindb.js |  6 +++---
 lib/protocol/networks.js  |  2 +-
 test/http-test.js         | 16 +++++++++++-----
 4 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/lib/blockchain/chain.js b/lib/blockchain/chain.js
index 51329083..2c44b11d 100644
--- a/lib/blockchain/chain.js
+++ b/lib/blockchain/chain.js
@@ -2389,6 +2389,9 @@ class Chain extends AsyncEmitter {
   async getState(prev, deployment) {
     const bit = deployment.bit;
 
+    if (deployment.startTime === -1)
+      return thresholdStates.ACTIVE;
+
     let window = this.network.minerWindow;
     let threshold = this.network.activationThreshold;
 
diff --git a/lib/blockchain/chaindb.js b/lib/blockchain/chaindb.js
index c0d09122..ec69b134 100644
--- a/lib/blockchain/chaindb.js
+++ b/lib/blockchain/chaindb.js
@@ -639,13 +639,13 @@ class ChainDB {
    */
 
   writeDeployments(b) {
-    const bw = bio.write(1 + 17 * this.network.deploys.length);
+    const bw = bio.write(1 + 21 * this.network.deploys.length);
 
     bw.writeU8(this.network.deploys.length);
 
     for (const deployment of this.network.deploys) {
       bw.writeU8(deployment.bit);
-      bw.writeU32(deployment.startTime);
+      bw.writeI64(deployment.startTime);
       bw.writeU32(deployment.timeout);
       bw.writeI32(deployment.threshold);
       bw.writeI32(deployment.window);
@@ -671,7 +671,7 @@ class ChainDB {
 
     for (let i = 0; i < count; i++) {
       const bit = br.readU8();
-      const start = br.readU32();
+      const start = br.readI64();
       const timeout = br.readU32();
       const threshold = br.readI32();
       const window = br.readI32();
diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index 1072a1ad..0d440054 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -801,7 +801,7 @@ regtest.deployments = {
   segwit: {
     name: 'segwit',
     bit: 1,
-    startTime: 0,
+    startTime: -1,
     timeout: 0xffffffff,
     threshold: -1,
     window: -1,
diff --git a/test/http-test.js b/test/http-test.js
index 810cb6d6..9803ae9d 100644
--- a/test/http-test.js
+++ b/test/http-test.js
@@ -203,12 +203,14 @@ describe('HTTP', function() {
   });
 
   it('should get a block template', async () => {
-    const json = await nclient.execute('getblocktemplate', []);
+    const json = await nclient.execute('getblocktemplate', [{
+      rules: ['segwit']
+    }]);
     assert.deepStrictEqual(json, {
       capabilities: ['proposal'],
       mutable: ['time', 'transactions', 'prevblock'],
       version: 536870912,
-      rules: [],
+      rules: ['!segwit'],
       vbavailable: {},
       vbrequired: 0,
       height: 1,
@@ -222,15 +224,19 @@ describe('HTTP', function() {
       mintime: 1296688603,
       maxtime: json.maxtime,
       expires: json.expires,
-      sigoplimit: 20000,
-      sizelimit: 1000000,
+      sigoplimit: 80000,
+      sizelimit: 4000000,
+      weightlimit: 4000000,
       longpollid:
         '0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206'
         + '00000000',
       submitold: false,
       coinbaseaux: { flags: '6d696e65642062792062636f696e' },
       coinbasevalue: 5000000000,
-      transactions: []
+      transactions: [],
+      default_witness_commitment:
+        '6a24aa21a9ede2f61c3f71d1defd3fa999dfa36953755c690689799962b48beb'
+        + 'd836974e8cf9'
     });
   });