etcd-cpp-apiv3/v3/src/AsyncCompareAndSwapAction.cpp

61 lines
2.0 KiB
C++

#include "v3/include/AsyncCompareAndSwapAction.hpp"
#include "v3/include/action_constants.hpp"
#include "v3/include/Transaction.hpp"
using etcdserverpb::Compare;
using etcdserverpb::RangeRequest;
using etcdserverpb::PutRequest;
using etcdserverpb::RequestOp;
using etcdserverpb::ResponseOp;
using etcdserverpb::TxnRequest;
etcdv3::AsyncCompareAndSwapAction::AsyncCompareAndSwapAction(std::string const & key, std::string const & value, std::string const & old_value, KV::Stub* stub_)
{
etcdv3::Transaction transaction(key);
transaction.init_compare(old_value, Compare::CompareResult::Compare_CompareResult_EQUAL,
Compare::CompareTarget::Compare_CompareTarget_VALUE);
transaction.setup_basic_failure_operation(key);
transaction.setup_compare_and_swap_sequence(value);
response_reader = stub_->AsyncTxn(&context, transaction.txn_request, &cq_);
response_reader->Finish(&reply, &status, (void*)this);
}
etcdv3::AsyncCompareAndSwapAction::AsyncCompareAndSwapAction(std::string const & key, std::string const & value, int old_index, KV::Stub* stub_)
{
etcdv3::Transaction transaction(key);
transaction.init_compare(old_index, Compare::CompareResult::Compare_CompareResult_EQUAL,
Compare::CompareTarget::Compare_CompareTarget_MOD);
transaction.setup_basic_failure_operation(key);
transaction.setup_compare_and_swap_sequence(value);
response_reader = stub_->AsyncTxn(&context, transaction.txn_request, &cq_);
response_reader->Finish(&reply, &status, (void*)this);
}
etcdv3::AsyncTxnResponse etcdv3::AsyncCompareAndSwapAction::ParseResponse()
{
AsyncTxnResponse txn_resp(reply);
if(!status.ok())
{
txn_resp.error_code = status.error_code();
txn_resp.error_message = status.error_message();
}
else
{
txn_resp.ParseResponse();
txn_resp.action = etcdv3::COMPARESWAP_ACTION;
if(!reply.succeeded())
{
txn_resp.error_code=101;
txn_resp.error_message="Compare failed";
}
}
return txn_resp;
}