/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef THRIFT_TEST_LOADGEN_OPENABLEDSTATE_H_
#define THRIFT_TEST_LOADGEN_OPENABLEDSTATE_H_ 1

#include <stdint.h>
#include <cassert>
#include <vector>

namespace apache {
namespace thrift {
namespace loadgen {

/**
 * This class tracks a boolean for each operation type, to tell if an operation
 * is enabled or not.
 *
 * This is mainly intended to be used by Monitor implementations, so they can
 * avoid monitoring (or at least printing) information for operations that are
 * disabled.
 */
class OpEnabledState {
 public:
  OpEnabledState(uint32_t numOpTypes) { enabled_.resize(numOpTypes, true); }

  void setEnabled(uint32_t opType, bool enabled) {
    assert(opType < enabled_.size());
    enabled_[opType] = enabled;
  }

  void setAllOpsEnabled(bool enabled) {
    for (std::vector<bool>::iterator it = enabled_.begin();
         it != enabled_.end();
         ++it) {
      *it = enabled;
    }
  }

  bool isEnabled(uint32_t opType) const {
    assert(opType < enabled_.size());
    return enabled_[opType];
  }

  uint32_t getNumEnabled() const {
    uint32_t num = 0;
    for (std::vector<bool>::const_iterator it = enabled_.begin();
         it != enabled_.end();
         ++it) {
      if (*it) {
        ++num;
      }
    }

    return num;
  }

 private:
  std::vector<bool> enabled_;
};

} // namespace loadgen
} // namespace thrift
} // namespace apache

#endif // THRIFT_TEST_LOADGEN_OPENABLEDSTATE_H_
