Decouple RegTestChainParams from ArgsManager

RegTest chain params can now be initialized by configuring a
RegTestOptions struct, or with ArgsManager. This offers an interface for
creating RegTestChainParams without a gArgs object.

1 files changed, 20 insertions, 0 deletions

diff --git a/src/chainparams.h b/src/chainparams.h
index 2f6f3f0907..f2e2eb8bc0 100644
--- a/src/chainparams.h
+++ b/src/chainparams.h
@@ -13,8 +13,10 @@
 #include <protocol.h>
 #include <util/hash_type.h>
 
+#include <cstdint>
 #include <memory>
 #include <string>
+#include <unordered_map>
 #include <vector>
 
 typedef std::map<int, uint256> MapCheckpoints;
@@ -131,6 +133,24 @@ public:
         std::optional<std::vector<std::string>> seeds{};
     };
 
+    /**
+     * VersionBitsParameters holds activation parameters
+     */
+    struct VersionBitsParameters {
+        int64_t start_time;
+        int64_t timeout;
+        int min_activation_height;
+    };
+
+    /**
+     * RegTestOptions holds configurations for creating a regtest CChainParams.
+     */
+    struct RegTestOptions {
+        std::unordered_map<Consensus::DeploymentPos, VersionBitsParameters> version_bits_parameters{};
+        std::unordered_map<Consensus::BuriedDeployment, int> activation_heights{};
+        bool fastprune{false};
+    };
+
 protected:
     CChainParams() {}