server.cpp raw
1 // Copyright (c) 2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2022 The Limenka developers
3 // Distributed under the MIT software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
5
6 #include <limenka-build-config.h> // IWYU pragma: keep
7
8 #include <rpc/server.h>
9
10 #include <common/args.h>
11 #include <common/system.h>
12 #include <httprpc.h>
13 #include <logging.h>
14 #include <node/context.h>
15 #include <node/kernel_notifications.h>
16 #include <rpc/request.h>
17 #include <rpc/server_util.h>
18 #include <rpc/util.h>
19 #include <sync.h>
20 #include <util/any.h>
21 #include <util/signalinterrupt.h>
22 #include <util/strencodings.h>
23 #include <util/string.h>
24 #include <util/time.h>
25 #include <validation.h>
26
27 #ifdef ENABLE_WALLET
28 #include <interfaces/wallet.h>
29 #include <wallet/wallet.h>
30 #endif
31
32 #include <cassert>
33 #include <chrono>
34 #include <memory>
35 #include <mutex>
36 #include <unordered_map>
37
38 using util::SplitString;
39
40 static GlobalMutex g_rpc_warmup_mutex;
41 static std::atomic<bool> g_rpc_running{false};
42 static bool fRPCInWarmup GUARDED_BY(g_rpc_warmup_mutex) = true;
43 static std::string rpcWarmupStatus GUARDED_BY(g_rpc_warmup_mutex) = "RPC server started";
44 /* Timer-creating functions */
45 static RPCTimerInterface* timerInterface = nullptr;
46 /* Map of name to timer. */
47 static GlobalMutex g_deadline_timers_mutex;
48 static std::map<std::string, std::unique_ptr<RPCTimerBase> > deadlineTimers GUARDED_BY(g_deadline_timers_mutex);
49 static bool ExecuteCommand(const CRPCCommand& command, const JSONRPCRequest& request, UniValue& result, bool last_handler);
50
51 struct RPCCommandExecutionInfo
52 {
53 std::string method;
54 SteadyClock::time_point start;
55 };
56
57 struct RPCServerInfo
58 {
59 Mutex mutex;
60 std::list<RPCCommandExecutionInfo> active_commands GUARDED_BY(mutex);
61 };
62
63 static RPCServerInfo g_rpc_server_info;
64
65 struct RPCCommandExecution
66 {
67 std::list<RPCCommandExecutionInfo>::iterator it;
68 explicit RPCCommandExecution(const std::string& method)
69 {
70 LOCK(g_rpc_server_info.mutex);
71 it = g_rpc_server_info.active_commands.insert(g_rpc_server_info.active_commands.end(), {method, SteadyClock::now()});
72 }
73 ~RPCCommandExecution()
74 {
75 LOCK(g_rpc_server_info.mutex);
76 g_rpc_server_info.active_commands.erase(it);
77 }
78 };
79
80 std::string CRPCTable::help(const std::string& strCommand, const JSONRPCRequest& helpreq) const
81 {
82 std::string strRet;
83 std::string category;
84 std::set<intptr_t> setDone;
85 std::vector<std::pair<std::string, const CRPCCommand*> > vCommands;
86 vCommands.reserve(mapCommands.size());
87
88 for (const auto& entry : mapCommands)
89 vCommands.emplace_back(entry.second.front()->category + entry.first, entry.second.front());
90 sort(vCommands.begin(), vCommands.end());
91
92 JSONRPCRequest jreq = helpreq;
93 jreq.mode = JSONRPCRequest::GET_HELP;
94 jreq.params = UniValue();
95
96 for (const std::pair<std::string, const CRPCCommand*>& command : vCommands)
97 {
98 const CRPCCommand *pcmd = command.second;
99 std::string strMethod = pcmd->name;
100 if ((strCommand != "" || pcmd->category == "hidden") && strMethod != strCommand)
101 continue;
102 jreq.strMethod = strMethod;
103 try
104 {
105 UniValue unused_result;
106 if (setDone.insert(pcmd->unique_id).second)
107 pcmd->actor(jreq, unused_result, /*last_handler=*/true);
108 }
109 catch (const std::exception& e)
110 {
111 // Help text is returned in an exception
112 std::string strHelp = std::string(e.what());
113 if (strCommand == "")
114 {
115 if (strHelp.find('\n') != std::string::npos)
116 strHelp = strHelp.substr(0, strHelp.find('\n'));
117
118 if (category != pcmd->category)
119 {
120 if (!category.empty())
121 strRet += "\n";
122 category = pcmd->category;
123 strRet += "== " + Capitalize(category) + " ==\n";
124 }
125 }
126 strRet += strHelp + "\n";
127 }
128 }
129 if (strRet == "")
130 strRet = strprintf("help: unknown command: %s\n", strCommand);
131 strRet = strRet.substr(0,strRet.size()-1);
132 return strRet;
133 }
134
135 static RPCHelpMan help()
136 {
137 return RPCHelpMan{"help",
138 "\nList all commands, or get help for a specified command.\n",
139 {
140 {"command", RPCArg::Type::STR, RPCArg::DefaultHint{"all commands"}, "The command to get help on"},
141 },
142 {
143 RPCResult{RPCResult::Type::STR, "", "The help text"},
144 RPCResult{RPCResult::Type::ANY, "", ""},
145 },
146 RPCExamples{""},
147 [&](const RPCHelpMan& self, const JSONRPCRequest& jsonRequest) -> UniValue
148 {
149 std::string strCommand;
150 if (jsonRequest.params.size() > 0) {
151 strCommand = jsonRequest.params[0].get_str();
152 }
153 if (strCommand == "dump_all_command_conversions") {
154 // Used for testing only, undocumented
155 return tableRPC.dumpArgMap(jsonRequest);
156 }
157
158 return tableRPC.help(strCommand, jsonRequest);
159 },
160 };
161 }
162
163 static RPCHelpMan stop()
164 {
165 static const std::string RESULT{CLIENT_NAME " stopping"};
166 return RPCHelpMan{"stop",
167 // Also accept the hidden 'wait' integer argument (milliseconds)
168 // For instance, 'stop 1000' makes the call wait 1 second before returning
169 // to the client (intended for testing)
170 "\nRequest a graceful shutdown of " CLIENT_NAME ".",
171 {
172 {"wait", RPCArg::Type::NUM, RPCArg::Optional::OMITTED, "how long to wait in ms", RPCArgOptions{.hidden=true}},
173 },
174 RPCResult{RPCResult::Type::STR, "", "A string with the content '" + RESULT + "'"},
175 RPCExamples{""},
176 [&](const RPCHelpMan& self, const JSONRPCRequest& jsonRequest) -> UniValue
177 {
178 // Event loop will exit after current HTTP requests have been handled, so
179 // this reply will get back to the client.
180 CHECK_NONFATAL((CHECK_NONFATAL(EnsureAnyNodeContext(jsonRequest.context).shutdown_request))());
181 if (jsonRequest.params[0].isNum()) {
182 UninterruptibleSleep(std::chrono::milliseconds{jsonRequest.params[0].getInt<int>()});
183 }
184 return RESULT;
185 },
186 };
187 }
188
189 static RPCHelpMan uptime()
190 {
191 return RPCHelpMan{"uptime",
192 "\nReturns the total uptime of the server.\n",
193 {},
194 RPCResult{
195 RPCResult::Type::NUM, "", "The number of seconds that the server has been running"
196 },
197 RPCExamples{
198 HelpExampleCli("uptime", "")
199 + HelpExampleRpc("uptime", "")
200 },
201 [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
202 {
203 return TicksSeconds(GetUptime());
204 }
205 };
206 }
207
208 static RPCHelpMan getrpcinfo()
209 {
210 return RPCHelpMan{"getrpcinfo",
211 "\nReturns details of the RPC server.\n",
212 {},
213 RPCResult{
214 RPCResult::Type::OBJ, "", "",
215 {
216 {RPCResult::Type::ARR, "active_commands", "All active commands",
217 {
218 {RPCResult::Type::OBJ, "", "Information about an active command",
219 {
220 {RPCResult::Type::STR, "method", "The name of the RPC command"},
221 {RPCResult::Type::NUM, "duration", "The running time in microseconds"},
222 }},
223 }},
224 {RPCResult::Type::STR, "logpath", "The complete file path to the debug log"},
225 }
226 },
227 RPCExamples{
228 HelpExampleCli("getrpcinfo", "")
229 + HelpExampleRpc("getrpcinfo", "")},
230 [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
231 {
232 LOCK(g_rpc_server_info.mutex);
233 UniValue active_commands(UniValue::VARR);
234 for (const RPCCommandExecutionInfo& info : g_rpc_server_info.active_commands) {
235 UniValue entry(UniValue::VOBJ);
236 entry.pushKV("method", info.method);
237 entry.pushKV("duration", int64_t{Ticks<std::chrono::microseconds>(SteadyClock::now() - info.start)});
238 active_commands.push_back(std::move(entry));
239 }
240
241 UniValue result(UniValue::VOBJ);
242 result.pushKV("active_commands", std::move(active_commands));
243
244 const std::string path = LogInstance().m_file_path.utf8string();
245 UniValue log_path(UniValue::VSTR, path);
246 result.pushKV("logpath", std::move(log_path));
247
248 return result;
249 }
250 };
251 }
252
253 static RPCHelpMan getrpcwhitelist()
254 {
255 return RPCHelpMan{"getrpcwhitelist",
256 "\nReturns whitelisted RPCs for the current user.\n",
257 {},
258 RPCResult{
259 RPCResult::Type::OBJ, "", "",
260 {
261 {RPCResult::Type::OBJ_DYN, "methods", "List of RPCs that the user is allowed to call",
262 {
263 {RPCResult::Type::NONE, "rpc", "Key is name of RPC method, value is null"},
264 }},
265 {RPCResult::Type::OBJ_DYN, "wallets", "List of wallets that the user is allowed to access",
266 {
267 {RPCResult::Type::NONE, "wallet_name", "Key is name of wallet, value is null"},
268 }},
269 }
270 },
271 RPCExamples{
272 HelpExampleCli("getrpcwhitelist", "")
273 + HelpExampleRpc("getrpcwhitelist", "")},
274 [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
275 {
276 UniValue whitelisted_rpcs(UniValue::VOBJ);
277 const std::set<std::string>& whitelist = GetWhitelistedRpcs(request.authUser);
278 for (const auto& rpc : whitelist) {
279 whitelisted_rpcs.pushKV(rpc, NullUniValue);
280 }
281
282 UniValue whitelisted_wallets(UniValue::VOBJ);
283 #ifdef ENABLE_WALLET
284 std::string authorized_wallet_name;
285 const bool have_wallet_restriction = GetWalletRestrictionFromJSONRPCRequest(request, authorized_wallet_name);
286 if (have_wallet_restriction) {
287 if (authorized_wallet_name != "-") {
288 whitelisted_wallets.pushKV(authorized_wallet_name, NullUniValue);
289 }
290 } else {
291 // All wallets are allowed
292 auto node_context = util::AnyPtr<node::NodeContext>(request.context);
293 if (node_context && node_context->wallet_loader && node_context->wallet_loader->context()) {
294 for (const std::shared_ptr<wallet::CWallet>& wallet : wallet::GetWallets(*node_context->wallet_loader->context())) {
295 if (!wallet.get()) continue;
296
297 LOCK(wallet->cs_wallet);
298 whitelisted_wallets.pushKV(wallet->GetName(), NullUniValue);
299 }
300 }
301 }
302 #endif
303
304 UniValue result(UniValue::VOBJ);
305 result.pushKV("methods", whitelisted_rpcs);
306 result.pushKV("wallets", whitelisted_wallets);
307
308 return result;
309 }
310 };
311 }
312
313 static const CRPCCommand vRPCCommands[]{
314 /* Overall control/query calls */
315 {"control", &getrpcinfo},
316 {"control", &getrpcwhitelist},
317 {"control", &help},
318 {"control", &stop},
319 {"control", &uptime},
320 };
321
322 CRPCTable::CRPCTable()
323 {
324 for (const auto& c : vRPCCommands) {
325 appendCommand(c.name, &c);
326 }
327 }
328
329 void CRPCTable::appendCommand(const std::string& name, const CRPCCommand* pcmd)
330 {
331 CHECK_NONFATAL(!IsRPCRunning()); // Only add commands before rpc is running
332
333 mapCommands[name].push_back(pcmd);
334 }
335
336 bool CRPCTable::removeCommand(const std::string& name, const CRPCCommand* pcmd)
337 {
338 auto it = mapCommands.find(name);
339 if (it != mapCommands.end()) {
340 auto new_end = std::remove(it->second.begin(), it->second.end(), pcmd);
341 if (it->second.end() != new_end) {
342 it->second.erase(new_end, it->second.end());
343 return true;
344 }
345 }
346 return false;
347 }
348
349 void StartRPC()
350 {
351 LogDebug(BCLog::RPC, "Starting RPC\n");
352 g_rpc_running = true;
353 }
354
355 void InterruptRPC()
356 {
357 static std::once_flag g_rpc_interrupt_flag;
358 // This function could be called twice if the GUI has been started with -server=1.
359 std::call_once(g_rpc_interrupt_flag, []() {
360 LogDebug(BCLog::RPC, "Interrupting RPC\n");
361 // Interrupt e.g. running longpolls
362 g_rpc_running = false;
363 });
364 }
365
366 void StopRPC()
367 {
368 static std::once_flag g_rpc_stop_flag;
369 // This function could be called twice if the GUI has been started with -server=1.
370 assert(!g_rpc_running);
371 std::call_once(g_rpc_stop_flag, [&]() {
372 LogDebug(BCLog::RPC, "Stopping RPC\n");
373 WITH_LOCK(g_deadline_timers_mutex, deadlineTimers.clear());
374 DeleteAuthCookie();
375 LogDebug(BCLog::RPC, "RPC stopped.\n");
376 });
377 }
378
379 bool IsRPCRunning()
380 {
381 return g_rpc_running;
382 }
383
384 void RpcInterruptionPoint()
385 {
386 if (!IsRPCRunning()) throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "Shutting down");
387 }
388
389 void SetRPCWarmupStatus(const std::string& newStatus)
390 {
391 LOCK(g_rpc_warmup_mutex);
392 rpcWarmupStatus = newStatus;
393 }
394
395 void SetRPCWarmupFinished()
396 {
397 LOCK(g_rpc_warmup_mutex);
398 assert(fRPCInWarmup);
399 fRPCInWarmup = false;
400 }
401
402 bool RPCIsInWarmup(std::string *outStatus)
403 {
404 LOCK(g_rpc_warmup_mutex);
405 if (outStatus)
406 *outStatus = rpcWarmupStatus;
407 return fRPCInWarmup;
408 }
409
410 bool IsDeprecatedRPCEnabled(const std::string& method)
411 {
412 const std::vector<std::string> enabled_methods = gArgs.GetArgs("-deprecatedrpc");
413
414 return find(enabled_methods.begin(), enabled_methods.end(), method) != enabled_methods.end();
415 }
416
417 UniValue JSONRPCExec(const JSONRPCRequest& jreq, bool catch_errors)
418 {
419 UniValue result;
420 if (catch_errors) {
421 try {
422 result = tableRPC.execute(jreq);
423 } catch (UniValue& e) {
424 return JSONRPCReplyObj(NullUniValue, std::move(e), jreq.id, jreq.m_json_version);
425 } catch (const std::exception& e) {
426 return JSONRPCReplyObj(NullUniValue, JSONRPCError(RPC_MISC_ERROR, e.what()), jreq.id, jreq.m_json_version);
427 }
428 } else {
429 result = tableRPC.execute(jreq);
430 }
431
432 return JSONRPCReplyObj(std::move(result), NullUniValue, jreq.id, jreq.m_json_version);
433 }
434
435 /**
436 * Process named arguments into a vector of positional arguments, based on the
437 * passed-in specification for the RPC call's arguments.
438 */
439 static inline JSONRPCRequest transformNamedArguments(const JSONRPCRequest& in, const std::vector<std::pair<std::string, bool>>& argNames)
440 {
441 JSONRPCRequest out = in;
442 out.params = UniValue(UniValue::VARR);
443 // Build a map of parameters, and remove ones that have been processed, so that we can throw a focused error if
444 // there is an unknown one.
445 const std::vector<std::string>& keys = in.params.getKeys();
446 const std::vector<UniValue>& values = in.params.getValues();
447 std::unordered_map<std::string, const UniValue*> argsIn;
448 for (size_t i=0; i<keys.size(); ++i) {
449 auto [_, inserted] = argsIn.emplace(keys[i], &values[i]);
450 if (!inserted) {
451 throw JSONRPCError(RPC_INVALID_PARAMETER, "Parameter " + keys[i] + " specified multiple times");
452 }
453 }
454 // Process expected parameters. If any parameters were left unspecified in
455 // the request before a parameter that was specified, null values need to be
456 // inserted at the unspecified parameter positions, and the "hole" variable
457 // below tracks the number of null values that need to be inserted.
458 // The "initial_hole_size" variable stores the size of the initial hole,
459 // i.e. how many initial positional arguments were left unspecified. This is
460 // used after the for-loop to add initial positional arguments from the
461 // "args" parameter, if present.
462 int hole = 0;
463 int initial_hole_size = 0;
464 const std::string* initial_param = nullptr;
465 auto positional_args{argsIn.extract("args")};
466 if (!positional_args) {
467 // nothing to do
468 } else if (!positional_args.mapped()->isArray()) {
469 argsIn.insert(std::move(positional_args));
470 positional_args = {};
471 }
472 UniValue options{UniValue::VOBJ};
473 for (const auto& [argNamePattern, named_only]: argNames) {
474 std::vector<std::string> vargNames = SplitString(argNamePattern, '|');
475 auto fr = argsIn.end();
476 for (const std::string & argName : vargNames) {
477 fr = argsIn.find(argName);
478 if (fr != argsIn.end()) {
479 break;
480 }
481 }
482
483 // Handle named-only parameters by pushing them into a temporary options
484 // object, and then pushing the accumulated options as the next
485 // positional argument.
486 if (named_only) {
487 if (options.empty()) {
488 if (options.isNull()) continue;
489 if (positional_args && positional_args.mapped()->size() > (size_t)hole) {
490 // some alternative to options is specified positionally; we can't use options at all
491 options = UniValue::VNULL;
492 continue;
493 }
494 }
495 if (fr != argsIn.end()) {
496 if (options.exists(fr->first)) {
497 throw JSONRPCError(RPC_INVALID_PARAMETER, "Parameter " + fr->first + " specified multiple times");
498 }
499 options.pushKVEnd(fr->first, *fr->second);
500 argsIn.erase(fr);
501 }
502 continue;
503 }
504
505 if (!options.empty() || fr != argsIn.end()) {
506 for (int i = 0; i < hole; ++i) {
507 // Fill hole between specified parameters with JSON nulls,
508 // but not at the end (for backwards compatibility with calls
509 // that act based on number of specified parameters).
510 out.params.push_back(UniValue());
511 }
512 hole = 0;
513 if (!initial_param) initial_param = &argNamePattern;
514 } else {
515 hole += 1;
516 if (out.params.empty()) initial_hole_size = hole;
517 }
518
519 // If named input parameter "fr" is present, push it onto out.params. If
520 // options are present, push them onto out.params. If both are present,
521 // throw an error.
522 if (fr != argsIn.end()) {
523 if (!options.empty()) {
524 throw JSONRPCError(RPC_INVALID_PARAMETER, "Parameter " + fr->first + " conflicts with parameter " + options.getKeys().front());
525 }
526 out.params.push_back(*fr->second);
527 argsIn.erase(fr);
528 }
529 if (!options.empty()) {
530 out.params.push_back(std::move(options));
531 options = UniValue{UniValue::VOBJ};
532 }
533 }
534 // If leftover "args" param was found, use it as a source of positional
535 // arguments and add named arguments after. This is a convenience for
536 // clients that want to pass a combination of named and positional
537 // arguments as described in doc/JSON-RPC-interface.md#parameter-passing
538 if (positional_args) {
539 if (initial_hole_size < (int)positional_args.mapped()->size() && initial_param) {
540 throw JSONRPCError(RPC_INVALID_PARAMETER, "Parameter " + *initial_param + " specified twice both as positional and named argument");
541 }
542 // Assign positional_args to out.params and append named_args after.
543 UniValue named_args{std::move(out.params)};
544 out.params = *positional_args.mapped();
545 for (size_t i{out.params.size()}; i < named_args.size(); ++i) {
546 out.params.push_back(named_args[i]);
547 }
548 }
549 // If there are still arguments in the argsIn map, this is an error.
550 if (!argsIn.empty()) {
551 if (options.isNull()) {
552 throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot specify both 'options' and named parameter " + argsIn.begin()->first);
553 }
554 throw JSONRPCError(RPC_INVALID_PARAMETER, "Unknown named parameter " + argsIn.begin()->first);
555 }
556 // Return request with named arguments transformed to positional arguments
557 return out;
558 }
559
560 static bool ExecuteCommands(const std::vector<const CRPCCommand*>& commands, const JSONRPCRequest& request, UniValue& result)
561 {
562 for (const auto& command : commands) {
563 if (ExecuteCommand(*command, request, result, &command == &commands.back())) {
564 return true;
565 }
566 }
567 return false;
568 }
569
570 UniValue CRPCTable::execute(const std::string method, const JSONRPCRequest &request) const
571 {
572 // Return immediately if in warmup
573 {
574 LOCK(g_rpc_warmup_mutex);
575 if (fRPCInWarmup)
576 throw JSONRPCError(RPC_IN_WARMUP, rpcWarmupStatus);
577 }
578
579 // Find method
580 auto it = mapCommands.find(method);
581 if (it != mapCommands.end()) {
582 UniValue result;
583 if (ExecuteCommands(it->second, request, result)) {
584 return result;
585 }
586 }
587 throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found");
588 }
589
590 UniValue CRPCTable::execute(const JSONRPCRequest &request) const
591 {
592 return this->execute(request.strMethod, request);
593 }
594
595 static bool ExecuteCommand(const CRPCCommand& command, const JSONRPCRequest& request, UniValue& result, bool last_handler)
596 {
597 try {
598 RPCCommandExecution execution(request.strMethod);
599 // Execute, convert arguments to array if necessary
600 if (request.params.isObject()) {
601 return command.actor(transformNamedArguments(request, command.argNames), result, last_handler);
602 } else {
603 return command.actor(request, result, last_handler);
604 }
605 } catch (const UniValue::type_error& e) {
606 throw JSONRPCError(RPC_TYPE_ERROR, e.what());
607 } catch (const std::exception& e) {
608 throw JSONRPCError(RPC_MISC_ERROR, e.what());
609 }
610 }
611
612 std::vector<std::string> CRPCTable::listCommands() const
613 {
614 std::vector<std::string> commandList;
615 commandList.reserve(mapCommands.size());
616 for (const auto& i : mapCommands) commandList.emplace_back(i.first);
617 return commandList;
618 }
619
620 UniValue CRPCTable::dumpArgMap(const JSONRPCRequest& args_request) const
621 {
622 JSONRPCRequest request = args_request;
623 request.mode = JSONRPCRequest::GET_ARGS;
624
625 UniValue ret{UniValue::VARR};
626 for (const auto& cmd : mapCommands) {
627 UniValue result;
628 if (ExecuteCommands(cmd.second, request, result)) {
629 for (const auto& values : result.getValues()) {
630 ret.push_back(values);
631 }
632 }
633 }
634 return ret;
635 }
636
637 void RPCSetTimerInterfaceIfUnset(RPCTimerInterface *iface)
638 {
639 if (!timerInterface)
640 timerInterface = iface;
641 }
642
643 void RPCSetTimerInterface(RPCTimerInterface *iface)
644 {
645 timerInterface = iface;
646 }
647
648 void RPCUnsetTimerInterface(RPCTimerInterface *iface)
649 {
650 if (timerInterface == iface)
651 timerInterface = nullptr;
652 }
653
654 void RPCRunLater(const std::string& name, std::function<void()> func, int64_t nSeconds)
655 {
656 if (!timerInterface)
657 throw JSONRPCError(RPC_INTERNAL_ERROR, "No timer handler registered for RPC");
658 LOCK(g_deadline_timers_mutex);
659 deadlineTimers.erase(name);
660 LogDebug(BCLog::RPC, "queue run of timer %s in %i seconds (using %s)\n", name, nSeconds, timerInterface->Name());
661 deadlineTimers.emplace(name, std::unique_ptr<RPCTimerBase>(timerInterface->NewTimer(func, nSeconds*1000)));
662 }
663
664 CRPCTable tableRPC;
665