aboutsummaryrefslogtreecommitdiff
path: root/src/wallet
diff options
context:
space:
mode:
Diffstat (limited to 'src/wallet')
-rw-r--r--src/wallet/db.cpp5
-rw-r--r--src/wallet/rpcwallet.cpp74
-rw-r--r--src/wallet/wallet.cpp15
-rw-r--r--src/wallet/wallet.h3
4 files changed, 84 insertions, 13 deletions
diff --git a/src/wallet/db.cpp b/src/wallet/db.cpp
index 410dd5009f..01b8eacccb 100644
--- a/src/wallet/db.cpp
+++ b/src/wallet/db.cpp
@@ -694,8 +694,10 @@ void BerkeleyEnvironment::Flush(bool fShutdown)
if (mapFileUseCount.empty()) {
dbenv->log_archive(&listp, DB_ARCH_REMOVE);
Close();
- if (!fMockDb)
+ if (!fMockDb) {
fs::remove_all(fs::path(strPath) / "database");
+ }
+ g_dbenvs.erase(strPath);
}
}
}
@@ -794,5 +796,6 @@ void BerkeleyDatabase::Flush(bool shutdown)
{
if (!IsDummy()) {
env->Flush(shutdown);
+ if (shutdown) env = nullptr;
}
}
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index fd9e23cb64..3f2255d042 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -40,12 +40,21 @@
static const std::string WALLET_ENDPOINT_BASE = "/wallet/";
-std::shared_ptr<CWallet> GetWalletForJSONRPCRequest(const JSONRPCRequest& request)
+bool GetWalletNameFromJSONRPCRequest(const JSONRPCRequest& request, std::string& wallet_name)
{
if (request.URI.substr(0, WALLET_ENDPOINT_BASE.size()) == WALLET_ENDPOINT_BASE) {
// wallet endpoint was used
- std::string requestedWallet = urlDecode(request.URI.substr(WALLET_ENDPOINT_BASE.size()));
- std::shared_ptr<CWallet> pwallet = GetWallet(requestedWallet);
+ wallet_name = urlDecode(request.URI.substr(WALLET_ENDPOINT_BASE.size()));
+ return true;
+ }
+ return false;
+}
+
+std::shared_ptr<CWallet> GetWalletForJSONRPCRequest(const JSONRPCRequest& request)
+{
+ std::string wallet_name;
+ if (GetWalletNameFromJSONRPCRequest(request, wallet_name)) {
+ std::shared_ptr<CWallet> pwallet = GetWallet(wallet_name);
if (!pwallet) throw JSONRPCError(RPC_WALLET_NOT_FOUND, "Requested wallet does not exist or is not loaded");
return pwallet;
}
@@ -66,11 +75,6 @@ bool EnsureWalletIsAvailable(CWallet * const pwallet, bool avoidException)
if (pwallet) return true;
if (avoidException) return false;
if (!HasWallets()) {
- // Note: It isn't currently possible to trigger this error because
- // wallet RPC methods aren't registered unless a wallet is loaded. But
- // this error is being kept as a precaution, because it's possible in
- // the future that wallet RPC methods might get or remain registered
- // when no wallets are loaded.
throw JSONRPCError(
RPC_METHOD_NOT_FOUND, "Method not found (wallet method is disabled because no wallet is loaded)");
}
@@ -3053,7 +3057,7 @@ static UniValue listwallets(const JSONRPCRequest& request)
return obj;
}
-UniValue loadwallet(const JSONRPCRequest& request)
+static UniValue loadwallet(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 1)
throw std::runtime_error(
@@ -3100,7 +3104,7 @@ UniValue loadwallet(const JSONRPCRequest& request)
return obj;
}
-UniValue createwallet(const JSONRPCRequest& request)
+static UniValue createwallet(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 1) {
throw std::runtime_error(
@@ -3147,6 +3151,55 @@ UniValue createwallet(const JSONRPCRequest& request)
return obj;
}
+static UniValue unloadwallet(const JSONRPCRequest& request)
+{
+ if (request.fHelp || request.params.size() > 1) {
+ throw std::runtime_error(
+ "unloadwallet ( \"wallet_name\" )\n"
+ "Unloads the wallet referenced by the request endpoint otherwise unloads the wallet specified in the argument.\n"
+ "Specifying the wallet name on a wallet endpoint is invalid."
+ "\nArguments:\n"
+ "1. \"wallet_name\" (string, optional) The name of the wallet to unload.\n"
+ "\nExamples:\n"
+ + HelpExampleCli("unloadwallet", "wallet_name")
+ + HelpExampleRpc("unloadwallet", "wallet_name")
+ );
+ }
+
+ std::string wallet_name;
+ if (GetWalletNameFromJSONRPCRequest(request, wallet_name)) {
+ if (!request.params[0].isNull()) {
+ throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot unload the requested wallet");
+ }
+ } else {
+ wallet_name = request.params[0].get_str();
+ }
+
+ std::shared_ptr<CWallet> wallet = GetWallet(wallet_name);
+ if (!wallet) {
+ throw JSONRPCError(RPC_WALLET_NOT_FOUND, "Requested wallet does not exist or is not loaded");
+ }
+
+ // Release the "main" shared pointer and prevent further notifications.
+ // Note that any attempt to load the same wallet would fail until the wallet
+ // is destroyed (see CheckUniqueFileid).
+ if (!RemoveWallet(wallet)) {
+ throw JSONRPCError(RPC_MISC_ERROR, "Requested wallet already unloaded");
+ }
+ UnregisterValidationInterface(wallet.get());
+
+ // The wallet can be in use so it's not possible to explicitly unload here.
+ // Just notify the unload intent so that all shared pointers are released.
+ // The wallet will be destroyed once the last shared pointer is released.
+ wallet->NotifyUnload();
+
+ // There's no point in waiting for the wallet to unload.
+ // At this point this method should never fail. The unloading could only
+ // fail due to an unexpected error which would cause a process termination.
+
+ return NullUniValue;
+}
+
static UniValue resendwallettransactions(const JSONRPCRequest& request)
{
std::shared_ptr<CWallet> const wallet = GetWalletForJSONRPCRequest(request);
@@ -4382,6 +4435,7 @@ static const CRPCCommand commands[] =
{ "wallet", "settxfee", &settxfee, {"amount"} },
{ "wallet", "signmessage", &signmessage, {"address","message"} },
{ "wallet", "signrawtransactionwithwallet", &signrawtransactionwithwallet, {"hexstring","prevtxs","sighashtype"} },
+ { "wallet", "unloadwallet", &unloadwallet, {"wallet_name"} },
{ "wallet", "walletlock", &walletlock, {} },
{ "wallet", "walletpassphrasechange", &walletpassphrasechange, {"oldpassphrase","newpassphrase"} },
{ "wallet", "walletpassphrase", &walletpassphrase, {"passphrase","timeout"} },
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index ca785298fd..6255f28b17 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -79,6 +79,15 @@ std::shared_ptr<CWallet> GetWallet(const std::string& name)
return nullptr;
}
+// Custom deleter for shared_ptr<CWallet>.
+static void ReleaseWallet(CWallet* wallet)
+{
+ LogPrintf("Releasing wallet %s\n", wallet->GetName());
+ wallet->BlockUntilSyncedToCurrentChain();
+ wallet->Flush();
+ delete wallet;
+}
+
const uint32_t BIP32_HARDENED_KEY_LIMIT = 0x80000000;
const uint256 CMerkleTx::ABANDON_HASH(uint256S("0000000000000000000000000000000000000000000000000000000000000001"));
@@ -1296,7 +1305,7 @@ void CWallet::BlockUntilSyncedToCurrentChain() {
LOCK(cs_main);
const CBlockIndex* initialChainTip = chainActive.Tip();
- if (m_last_block_processed->GetAncestor(initialChainTip->nHeight) == initialChainTip) {
+ if (m_last_block_processed && m_last_block_processed->GetAncestor(initialChainTip->nHeight) == initialChainTip) {
return;
}
}
@@ -4066,7 +4075,9 @@ std::shared_ptr<CWallet> CWallet::CreateWalletFromFile(const std::string& name,
int64_t nStart = GetTimeMillis();
bool fFirstRun = true;
- std::shared_ptr<CWallet> walletInstance = std::make_shared<CWallet>(name, WalletDatabase::Create(path));
+ // TODO: Can't use std::make_shared because we need a custom deleter but
+ // should be possible to use std::allocate_shared.
+ std::shared_ptr<CWallet> walletInstance(new CWallet(name, WalletDatabase::Create(path)), ReleaseWallet);
DBErrors nLoadWalletRet = walletInstance->LoadWallet(fFirstRun);
if (nLoadWalletRet != DBErrors::LOAD_OK)
{
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
index aacbdf81d6..b829394847 100644
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -1100,6 +1100,9 @@ public:
//! Flush wallet (bitdb flush)
void Flush(bool shutdown=false);
+ /** Wallet is about to be unloaded */
+ boost::signals2::signal<void ()> NotifyUnload;
+
/**
* Address book entry changed.
* @note called with lock cs_wallet held.
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-02 13:32:48 +0000