Coroutine.h

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/*
 * This is a part of the Uniot project.
 * Copyright (C) 2016-2024 Uniot <contact@uniot.io>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 
#pragma once


#define COROUTINE_BEGIN()         \
  static uint32_t coroutine_state = 0; \
  switch (coroutine_state) {      \
    case 0:

#define COROUTINE_YIELD()       \
  do {                          \
    coroutine_state = __LINE__; \
    return;                     \
    case __LINE__:;             \
      coroutine_state = 0;      \
  } while (0)

#define COROUTINE_END() \
  }                     \
  return