/*
 * Copyright (C) 2022 The Android Open Source Project
 *
 * 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.
 */

#pragma once

#include <stdint.h>

#include <string>

namespace memory_trace {

enum TypeEnum : uint8_t {
  MALLOC = 0,
  CALLOC,
  MEMALIGN,
  REALLOC,
  FREE,
  THREAD_DONE,
  UNKNOWN,
};

struct Entry {
  pid_t tid;
  TypeEnum type;
  uint64_t ptr = 0;
  size_t size = 0;
  union {
    uint64_t old_ptr = 0;
    uint64_t n_elements;
    uint64_t align;
  } u;
  int64_t present_bytes = -1;
  uint64_t start_ns = 0;
  uint64_t end_ns = 0;
};

bool FillInEntryFromString(const std::string& line, Entry& entry, std::string& error);

std::string CreateStringFromEntry(const Entry& entry);

// Guaranteed not to allocate.
bool WriteEntryToFd(int fd, const Entry& entry);

}  // namespace memory_trace