diff options
Diffstat (limited to 'apps/examples/ostest/roundrobin.c')
| -rw-r--r-- | apps/examples/ostest/roundrobin.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/apps/examples/ostest/roundrobin.c b/apps/examples/ostest/roundrobin.c deleted file mode 100644 index bfd344df3..000000000 --- a/apps/examples/ostest/roundrobin.c +++ /dev/null @@ -1,206 +0,0 @@ -/******************************************************************************** - * examples/ostest/roundrobin.c - * - * Copyright (C) 2007, 2008, 2012 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * 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 NuttX 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 OWNER 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. - * - ********************************************************************************/ - -/******************************************************************************** - * Included Files - ********************************************************************************/ - -#include <nuttx/config.h> -#include <stdio.h> -#include <stdbool.h> -#include "ostest.h" - -#if CONFIG_RR_INTERVAL > 0 - -/******************************************************************************** - * Definitions - ********************************************************************************/ - -/* This numbers should be tuned for different processor speeds via .config file. - * With default values the test takes about 30s on Cortex-M3 @ 24MHz. With 32767 - * range and 10 runs it takes ~320s. */ - -#ifndef CONFIG_EXAMPLES_OSTEST_RR_RANGE -# define CONFIG_EXAMPLES_OSTEST_RR_RANGE 10000 -# warning "CONFIG_EXAMPLES_OSTEST_RR_RANGE undefined, using default value = 10000" -#elif (CONFIG_EXAMPLES_OSTEST_RR_RANGE < 1) || (CONFIG_EXAMPLES_OSTEST_RR_RANGE > 32767) -# define CONFIG_EXAMPLES_OSTEST_RR_RANGE 10000 -# warning "Invalid value of CONFIG_EXAMPLES_OSTEST_RR_RANGE, using default value = 10000" -#endif - -#ifndef CONFIG_EXAMPLES_OSTEST_RR_RUNS -# define CONFIG_EXAMPLES_OSTEST_RR_RUNS 10 -# warning "CONFIG_EXAMPLES_OSTEST_RR_RUNS undefined, using default value = 10" -#elif (CONFIG_EXAMPLES_OSTEST_RR_RUNS < 1) || (CONFIG_EXAMPLES_OSTEST_RR_RUNS > 32767) -# define CONFIG_EXAMPLES_OSTEST_RR_RUNS 10 -# warning "Invalid value of CONFIG_EXAMPLES_OSTEST_RR_RUNS, using default value = 10" -#endif - -/******************************************************************************** - * Private Functions - ********************************************************************************/ - -/******************************************************************************** - * Name: get_primes - * - * Description - * This function searches for prime numbers in the most primitive way possible. - ********************************************************************************/ - -static void get_primes(int *count, int *last) -{ - int number; - int local_count = 0; - *last = 0; // to make compiler happy - - for (number = 1; number < CONFIG_EXAMPLES_OSTEST_RR_RANGE; number++) - { - int div; - bool is_prime = true; - - for (div = 2; div <= number / 2; div++) - if (number % div == 0) - { - is_prime = false; - break; - } - - if (is_prime) - { - local_count++; - *last = number; -#if 0 /* We don't really care what the numbers are */ - printf(" Prime %d: %d\n", local_count, number); -#endif - } - } - - *count = local_count; -} - -/******************************************************************************** - * Name: get_primes_thread - ********************************************************************************/ - -static void *get_primes_thread(void *parameter) -{ - int id = (int)parameter; - int i, count, last; - - printf("get_primes_thread id=%d started, looking for primes < %d, doing %d run(s)\n", - id, CONFIG_EXAMPLES_OSTEST_RR_RANGE, CONFIG_EXAMPLES_OSTEST_RR_RUNS); - - for (i = 0; i < CONFIG_EXAMPLES_OSTEST_RR_RUNS; i++) - { - get_primes(&count, &last); - } - - printf("get_primes_thread id=%d finished, found %d primes, last one was %d\n", - id, count, last); - - pthread_exit(NULL); - return NULL; /* To keep some compilers happy */ -} - -/******************************************************************************** - * Public Functions - ********************************************************************************/ - -/******************************************************************************** - * Name: rr_test - ********************************************************************************/ - -void rr_test(void) -{ - pthread_t get_primes1_thread; - pthread_t get_primes2_thread; - struct sched_param sparam; - pthread_attr_t attr; - pthread_addr_t result; - int status; - - status = pthread_attr_init(&attr); - if (status != OK) - { - printf("rr_test: pthread_attr_init failed, status=%d\n", status); - } - - sparam.sched_priority = sched_get_priority_min(SCHED_FIFO); - status = pthread_attr_setschedparam(&attr, &sparam); - if (status != OK) - { - printf("rr_test: pthread_attr_setschedparam failed, status=%d\n", status); - } - else - { - printf("rr_test: Set thread priority to %d\n", sparam.sched_priority); - } - - status = pthread_attr_setschedpolicy(&attr, SCHED_RR); - if (status != OK) - { - printf("rr_test: pthread_attr_setschedpolicy failed, status=%d\n", status); - } - else - { - printf("rr_test: Set thread policy to SCHED_RR\n"); - } - - printf("rr_test: Starting first get_primes_thread\n"); - - status = pthread_create(&get_primes1_thread, &attr, get_primes_thread, (void*)1); - if (status != 0) - { - printf("rr_test: Error in thread 1 creation, status=%d\n", status); - } - - printf("rr_test: Starting second get_primes_thread\n"); - - status = pthread_create(&get_primes2_thread, &attr, get_primes_thread, (void*)2); - if (status != 0) - { - printf("rr_test: Error in thread 2 creation, status=%d\n", status); - } - - printf("rr_test: Waiting for threads to complete -- this should take awhile\n"); - printf("rr_test: If RR scheduling is working, they should start and complete at\n"); - printf("rr_test: about the same time\n"); - - pthread_join(get_primes2_thread, &result); - pthread_join(get_primes1_thread, &result); - printf("rr_test: Done\n"); -} - -#endif /* CONFIG_RR_INTERVAL */ |