text: /*
   * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
   * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this list of
   * conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright notice, this list
   * of conditions and the following disclaimer in the documentation and/or other materials
   * provided with the distribution.
   *
   * 3. Neither the name of the copyright holder nor the names of its contributors may be used
   * to endorse or promote products derived from this software without specific prior written
   * permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  #include "it_test_process.h"
  
  static void *Thread(void *arg)
  {
      sleep(1);
      return NULL;
  }
  
  static int GroupProcess(void)
  {
      int testPid;
      int ret;
      int status = 0;
      pid_t pid, pid1;
      int count = 500;
      int waitProcess = 0;
      pthread_attr_t a = { 0 };
      pthread_t pthread[1000] = { 0 };
      struct sched_param param = { 0 };
      bool thread = false;
  
      int processCount = 0;
  
      pthread_attr_init(&a);
      param.sched_priority = 31; // 31, set pthread priority.
      pthread_attr_setschedparam(&a, &param);
      for (int i = 0; i < 40; i++) { // 40, number of cycles
          ret = pthread_create(&pthread[i], &a, Thread, NULL);
          if (ret != 0) {
              exit(10); // 10, exit args
              break;
          }
      }
  
      for (int i = 0; i < count; i++) {
          pid = fork();
          if (pid == 0) {
              pthread_create(&pthread[100], &a, Thread, NULL); // 100, pthread array subscript
              pthread_create(&pthread[100], &a, Thread, NULL); // 100, pthread array subscript
              pthread_create(&pthread[100], &a, Thread, NULL); // 100, pthread array subscript
              usleep(1000 * 10 * 50); // 1000, 10, 50, Used to calculate the delay time.
              exit(0);
          } else if (pid < 0) {
              if (errno != EAGAIN) {
                  sleep(1);
              }
              ret = wait(&status);
              if (ret > 0) {
                  processCount--;
              }
              continue;
          } else {
              processCount++;
              testPid = pid;
              continue;
          }
      }
  
      ret = 0;
      while (processCount > 0) {
          ret = wait(&status);
          if (ret > 0) {
              processCount--;
          } else {
              sleep(1);
          }
      }
  
      exit(255); // 255, exit args
  EXIT:
      return 0;
  }
  
  static int TestCase(void)
  {
      int ret;
      int status = 0;
      pid_t pid, pid1;
      pid = fork();
      ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT); // 100000, assert pid equal to this.
  
      if (pid == 0) {
          prctl(PR_SET_NAME, "mainFork", 0UL, 0UL, 0UL);
          GroupProcess();
          printf("[Failed] - [Errline : %d RetCode : 0x%x\n", g_iCunitErrLineNo, g_iCunitErrCode);
          exit(g_iCunitErrLineNo);
      }
  
      ret = waitpid(pid, &status, 0);
      ICUNIT_ASSERT_EQUAL(ret, pid, ret);
      status = WEXITSTATUS(status);
      ICUNIT_GOTO_EQUAL(status, 255, status, EXIT); // 255, assert status equal to this.
  
      return 0;
  EXIT:
      return 1;
  }
  
  void ItTestProcess041(void)
  {
      TEST_ADD_CASE("IT_POSIX_PROCESS_041", TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
  }
  