void McServerSession::requestReady(McRequest req,
mc_op_t operation,
uint64_t reqid,
mc_res_t result,
bool noreply) {
DestructorGuard dg(this);
auto sharedThis = weakThis_.lock();
if (!sharedThis) {
/* This session is being destroyed, can't create new transactions */
close();
return;
}
if (state_ != STREAMING) {
return;
}
auto isSubRequest = isPartOfMultiget(parser_.protocol(), operation);
auto isMultiget = (operation == mc_op_end);
auto transactionPtr =
folly::make_unique<McServerTransaction>(
sharedThis,
std::move(req),
operation,
reqid,
isMultiget,
isSubRequest,
noreply);
McServerTransaction& transaction = [&]() -> McServerTransaction& {
if (isSubRequest) {
return multigetRequests_.pushBack(std::move(transactionPtr));
} else {
return unansweredRequests_.pushBack(std::move(transactionPtr));
}
}();
if (result == mc_res_bad_key) {
transaction.sendReply(McReply(mc_res_bad_key));
} else if (operation == mc_op_version) {
transaction.sendReply(McReply(mc_res_ok, options_.versionString));
} else if (operation == mc_op_quit) {
/* mc_op_quit transaction will have `noreply` set, so this call
is solely to make sure the transaction is completed and cleaned up */
transaction.sendReply(McReply(mc_res_ok));
close();
} else if (operation == mc_op_shutdown) {
transaction.sendReply(McReply(mc_res_ok));
onShutdown_();
} else if (isMultiget) {
while (!multigetRequests_.empty()) {
auto subReq = multigetRequests_.popFront();
transaction.pushMultigetRequest(std::move(subReq));
}
transaction.dispatchSubRequests(*onRequest_);
} else if (!isSubRequest) {
transaction.dispatchRequest(*onRequest_);
}
}
void AsyncMcServer::shutdown() {
if (!alive_.exchange(false)) {
return;
}
if (onShutdown_) {
onShutdown_();
}
for (auto& thread : threads_) {
thread->shutdown();
}
}
