/* * File: priority1.c * * Test Synopsis: * - Test thread priority explicit setting using thread attribute. * * Test Method (Validation or Falsification): * -  * * Requirements Tested: * - * * Features Tested: * - * * Cases Tested: * - * * Description: * - * * Environment: * - * * Input: * - None. * * Output: * - File name, Line number, and failed expression on failure. * - No output on success. * * Assumptions: * - * * Pass Criteria: * - Process returns zero exit status. * * Fail Criteria: * - Process returns non-zero exit status. */#include "test.h"void * func(void * arg){  int policy;  struct sched_param param;  assert(pthread_getschedparam(pthread_self(), &policy, &param) == 0);  assert(policy == SCHED_OTHER);  return (void *) param.sched_priority;} intmain(){  pthread_t t;  pthread_attr_t attr;  void * result = NULL;  struct sched_param param;  int maxPrio = sched_get_priority_max(SCHED_OTHER);  int minPrio = sched_get_priority_min(SCHED_OTHER);  assert(pthread_attr_init(&attr) == 0);  assert(pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED) == 0);  for (param.sched_priority = minPrio;       param.sched_priority <= maxPrio;       param.sched_priority++)    {      assert(pthread_attr_setschedparam(&attr, &param) == 0);      assert(pthread_create(&t, &attr, func, NULL) == 0);      pthread_join(t, &result);      assert((int) result == param.sched_priority);    }  return 0;}