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rocksdb/util/ldb_cmd_execute_result.h

71 lines
1.6 KiB

// Copyright (c) 2013, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
#pragma once
namespace rocksdb {
class LDBCommandExecuteResult {
public:
enum State {
EXEC_NOT_STARTED = 0, EXEC_SUCCEED = 1, EXEC_FAILED = 2,
};
LDBCommandExecuteResult() : state_(EXEC_NOT_STARTED), message_("") {}
LDBCommandExecuteResult(State state, std::string& msg) :
state_(state), message_(msg) {}
std::string ToString() {
std::string ret;
switch (state_) {
case EXEC_SUCCEED:
break;
case EXEC_FAILED:
ret.append("Failed: ");
break;
case EXEC_NOT_STARTED:
ret.append("Not started: ");
}
if (!message_.empty()) {
ret.append(message_);
}
return ret;
}
void Reset() {
state_ = EXEC_NOT_STARTED;
message_ = "";
}
bool IsSucceed() {
return state_ == EXEC_SUCCEED;
}
bool IsNotStarted() {
return state_ == EXEC_NOT_STARTED;
}
bool IsFailed() {
return state_ == EXEC_FAILED;
}
static LDBCommandExecuteResult Succeed(std::string msg) {
return LDBCommandExecuteResult(EXEC_SUCCEED, msg);
}
static LDBCommandExecuteResult Failed(std::string msg) {
return LDBCommandExecuteResult(EXEC_FAILED, msg);
}
private:
State state_;
std::string message_;
bool operator==(const LDBCommandExecuteResult&);
bool operator!=(const LDBCommandExecuteResult&);
};
}