Remove g_rpc_chain global

Replace with RPC request reference to new WalletContext struct similar to the
existing NodeContext struct and reference.

This PR is a followup to 25ad2c623af30056ffb36dcd203a52edda2b170f
https://github.com/bitcoin/bitcoin/pull/18740 removing the g_rpc_node global.

Some later PRs will follow this up and move more wallet globals to the
WalletContext struct.

Co-authored-by: João Barbosa <joao.paulo.barbosa@gmail.com>

1 files changed, 3 insertions, 10 deletions

diff --git a/src/wallet/rpcwallet.h b/src/wallet/rpcwallet.h
index fd8a41ed14..d00221a04c 100644
--- a/src/wallet/rpcwallet.h
+++ b/src/wallet/rpcwallet.h
@@ -16,18 +16,10 @@ class CWallet;
 class JSONRPCRequest;
 class LegacyScriptPubKeyMan;
 class UniValue;
-struct PartiallySignedTransaction;
 class CTransaction;
+struct PartiallySignedTransaction;
+struct WalletContext;
 
-namespace interfaces {
-class Chain;
-}
-
-//! Pointer to chain interface that needs to be declared as a global to be
-//! accessible loadwallet and createwallet methods. Due to limitations of the
-//! RPC framework, there's currently no direct way to pass in state to RPC
-//! methods without globals.
-extern interfaces::Chain* g_rpc_chain;
 Span<const CRPCCommand> GetWalletRPCCommands();
 
 /**
@@ -40,6 +32,7 @@ std::shared_ptr<CWallet> GetWalletForJSONRPCRequest(const JSONRPCRequest& reques
 
 void EnsureWalletIsUnlocked(const CWallet*);
 bool EnsureWalletIsAvailable(const CWallet*, bool avoidException);
+WalletContext& EnsureWalletContext(const util::Ref& context);
 LegacyScriptPubKeyMan& EnsureLegacyScriptPubKeyMan(CWallet& wallet, bool also_create = false);
 
 UniValue getaddressinfo(const JSONRPCRequest& request);