Merge #18037: Util: Allow scheduler to be mocked

8bca30ea17cd4c1dacee28eaa27e5fa3493b021d [rpc] expose ability to mock scheduler via the rpc (Amiti Uttarwar)
7c8b6e5b5206a98f86675d0107ad99ea1d080466 [lib] add scheduler to node context (Amiti Uttarwar)
930d8375421451c8c4127608c360b0f6a0a62127 [test] add chainparams property to indicate chain allows time mocking (Amiti Uttarwar)
1cd43e83c6e8d81e950aaaede7a8a51505d0a2bc [test] unit test for new MockForward scheduler method (Amiti Uttarwar)
a6f63598adb880a75e1571aac58338c17fa7ad53 [util] allow scheduler to be mocked (Amiti Uttarwar)

Pull request description:

  This PR is to support functional tests by allowing the scheduler to be mocked via the RPC.

  It adds a `MockForward` method to the scheduler class that iterates through the task queue and reschedules them to be `delta_seconds` sooner.

  This is currently used to support functional testing of the "unbroadcast" set tracking in #18038. If this patch is accepted, it would also be useful to simplify the code in #16698.

ACKs for top commit:
  MarcoFalke:
    ACK 8bca30ea17cd4c1dacee28eaa27e5fa3493b021d, only change is some style fixups 🕓

Tree-SHA512: 2a97fe8ade2b7fd1fb5cdfa1dcafb3227a377d7a847e3845a228bc119eb77824b4aefa43d922a06d583939b22725e223f308cf092961048079d36f6b1d9a639b

1 files changed, 3 insertions, 0 deletions

diff --git a/src/chainparams.h b/src/chainparams.h
index 63398e587e..379c75e4be 100644
--- a/src/chainparams.h
+++ b/src/chainparams.h
@@ -68,6 +68,8 @@ public:
     bool RequireStandard() const { return fRequireStandard; }
     /** If this chain is exclusively used for testing */
     bool IsTestChain() const { return m_is_test_chain; }
+    /** If this chain allows time to be mocked */
+    bool IsMockableChain() const { return m_is_mockable_chain; }
     uint64_t PruneAfterHeight() const { return nPruneAfterHeight; }
     /** Minimum free space (in GB) needed for data directory */
     uint64_t AssumedBlockchainSize() const { return m_assumed_blockchain_size; }
@@ -102,6 +104,7 @@ protected:
     bool fDefaultConsistencyChecks;
     bool fRequireStandard;
     bool m_is_test_chain;
+    bool m_is_mockable_chain;
     CCheckpointData checkpointData;
     ChainTxData chainTxData;
 };