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Handle MSG_WAIT_FAILED / MSG_WAIT_TIMEOUT.

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This commit is contained in:
John Preston 2021-07-06 11:20:18 +03:00
parent bae8335285
commit e28fb1211e
2 changed files with 87 additions and 75 deletions
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138
Telegram/SourceFiles/mtproto/mtp_instance.cpp
View file

@ -264,6 +264,8 @@ private:
QReadWriteLock _requestMapLock;
std::deque<std::pair<mtpRequestId, crl::time>> _delayedRequests;
base::flat_map<mtpRequestId, mtpRequestId> _dependentRequests;
mutable QMutex _dependentRequestsLock;
std::map<mtpRequestId, int> _requestsDelays;
@ -1010,9 +1012,40 @@ void Instance::Private::unregisterRequest(mtpRequestId requestId) {
QWriteLocker locker(&_requestMapLock);
_requestMap.erase(requestId);
}
{
QMutexLocker locker(&_requestByDcLock);
_requestsByDc.erase(requestId);
}
{
QMutexLocker locker(&_dependentRequestsLock);
for (auto i = begin(_dependentRequests); i != end(_dependentRequests);) {
if (i->first == requestId) {
i = _dependentRequests.erase(i);
} else if (i->second == requestId) {
const auto resendingId = i->first;
i = _dependentRequests.erase(i);
QMutexLocker locker(&_requestByDcLock);
_requestsByDc.erase(requestId);
if (const auto shiftedDcId = queryRequestByDc(resendingId)) {
SerializedRequest request;
{
QReadLocker locker(&_requestMapLock);
auto it = _requestMap.find(resendingId);
if (it == _requestMap.cend()) {
LOG(("MTP Error: could not find dependent request %1").arg(resendingId));
return;
}
request = it->second;
}
request->after = SerializedRequest();
const auto session = getSession(qAbs(*shiftedDcId));
request->needsLayer = true;
session->sendPrepared(request);
}
} else {
++i;
}
}
}
}
void Instance::Private::storeRequest(
@ -1339,6 +1372,47 @@ bool Instance::Private::onErrorDefault(
(dcWithShift < 0) ? -newdcWithShift : newdcWithShift);
session->sendPrepared(request);
return true;
} else if (type == qstr("MSG_WAIT_TIMEOUT") || type == qstr("MSG_WAIT_FAILED")) {
SerializedRequest request;
{
QReadLocker locker(&_requestMapLock);
auto it = _requestMap.find(requestId);
if (it == _requestMap.cend()) {
LOG(("MTP Error: could not find MSG_WAIT_* request %1").arg(requestId));
return false;
}
request = it->second;
}
if (!request->after) {
LOG(("MTP Error: MSG_WAIT_* for not dependent request %1").arg(requestId));
return false;
}
auto dcWithShift = ShiftedDcId(0);
if (const auto shiftedDcId = queryRequestByDc(requestId)) {
dcWithShift = *shiftedDcId;
if (const auto afterDcId = queryRequestByDc(request->after->requestId)) {
if (*shiftedDcId != *afterDcId) {
request->after = SerializedRequest();
}
} else {
request->after = SerializedRequest();
}
} else {
LOG(("MTP Error: could not find MSG_WAIT_* request %1 by dc").arg(requestId));
}
if (!dcWithShift) {
return false;
}
if (!request->after) {
const auto session = getSession(qAbs(dcWithShift));
request->needsLayer = true;
session->sendPrepared(request);
} else {
QMutexLocker locker(&_dependentRequestsLock);
_dependentRequests.emplace(requestId, request->after->requestId);
}
return true;
} else if (code < 0
|| code >= 500
|| (m1 = QRegularExpression("^FLOOD_WAIT_(\\d+)$").match(type)).hasMatch()
@ -1435,66 +1509,6 @@ bool Instance::Private::onErrorDefault(
return true;
} else if (type == qstr("CONNECTION_LANG_CODE_INVALID")) {
Lang::CurrentCloudManager().resetToDefault();
} else if (type == qstr("MSG_WAIT_FAILED")) {
SerializedRequest request;
{
QReadLocker locker(&_requestMapLock);
auto it = _requestMap.find(requestId);
if (it == _requestMap.cend()) {
LOG(("MTP Error: could not find request %1").arg(requestId));
return false;
}
request = it->second;
}
if (!request->after) {
LOG(("MTP Error: wait failed for not dependent request %1").arg(requestId));
return false;
}
auto dcWithShift = ShiftedDcId(0);
if (const auto shiftedDcId = queryRequestByDc(requestId)) {
if (const auto afterDcId = queryRequestByDc(request->after->requestId)) {
dcWithShift = *shiftedDcId;
if (*shiftedDcId != *afterDcId) {
request->after = SerializedRequest();
}
} else {
LOG(("MTP Error: could not find dependent request %1 by dc").arg(request->after->requestId));
}
} else {
LOG(("MTP Error: could not find request %1 by dc").arg(requestId));
}
if (!dcWithShift) return false;
if (!request->after) {
const auto session = getSession(qAbs(dcWithShift));
request->needsLayer = true;
session->sendPrepared(request);
} else {
auto newdc = BareDcId(qAbs(dcWithShift));
auto &waiters(_authWaiters[newdc]);
if (base::contains(waiters, request->after->requestId)) {
if (!base::contains(waiters, requestId)) {
waiters.push_back(requestId);
}
if (_badGuestDcRequests.find(request->after->requestId) != _badGuestDcRequests.cend()) {
if (_badGuestDcRequests.find(requestId) == _badGuestDcRequests.cend()) {
_badGuestDcRequests.insert(requestId);
}
}
} else {
auto i = _delayedRequests.begin(), e = _delayedRequests.end();
for (; i != e; ++i) {
if (i->first == requestId) return true;
if (i->first == request->after->requestId) break;
}
if (i != e) {
_delayedRequests.insert(i, std::make_pair(requestId, i->second));
}
checkDelayedRequests();
}
}
return true;
}
if (badGuestDc) _badGuestDcRequests.erase(requestId);
return false;

24
Telegram/SourceFiles/mtproto/mtproto_response.cpp
View file

@ -25,22 +25,20 @@ namespace {
Error::Error(const MTPrpcError &error)
: _code(error.c_rpc_error().verror_code().v) {
QString text = qs(error.c_rpc_error().verror_message());
if (_code < 0 || _code >= 500) {
const auto expression = QRegularExpression(
"^([A-Z0-9_]+)(: .*)?$",
(QRegularExpression::DotMatchesEverythingOption
| QRegularExpression::MultilineOption));
const auto match = expression.match(text);
if (match.hasMatch()) {
_type = match.captured(1);
_description = match.captured(2).mid(2);
} else if (_code < 0 || _code >= 500) {
_type = "INTERNAL_SERVER_ERROR";
_description = text;
} else {
const auto expression = QRegularExpression(
"^([A-Z0-9_]+)(: .*)?$",
(QRegularExpression::DotMatchesEverythingOption
| QRegularExpression::MultilineOption));
const auto match = expression.match(text);
if (match.hasMatch()) {
_type = match.captured(1);
_description = match.captured(2).mid(2);
} else {
_type = "CLIENT_BAD_RPC_ERROR";
_description = "Bad rpc error received, text = '" + text + '\'';
}
_type = "CLIENT_BAD_RPC_ERROR";
_description = "Bad rpc error received, text = '" + text + '\'';
}
}