-
Notifications
You must be signed in to change notification settings - Fork 488
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
testing/ostest: add test case for task priority change with locked sc…
…heduler Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
- Loading branch information
1 parent
f2ba02c
commit ce67d71
Showing
4 changed files
with
261 additions
and
6 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,241 @@ | ||
/**************************************************************************** | ||
* apps/testing/ostest/schedlock.c | ||
* | ||
* Licensed to the Apache Software Foundation (ASF) under one or more | ||
* contributor license agreements. See the NOTICE file distributed with | ||
* this work for additional information regarding copyright ownership. The | ||
* ASF licenses this file to you 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. | ||
* | ||
****************************************************************************/ | ||
|
||
/**************************************************************************** | ||
* Included Files | ||
****************************************************************************/ | ||
|
||
#include <stdio.h> | ||
#include <unistd.h> | ||
#include <pthread.h> | ||
#include <errno.h> | ||
#include <sched.h> | ||
#include <unistd.h> | ||
#include <stdint.h> | ||
|
||
#include "ostest.h" | ||
|
||
#include <sys/wait.h> | ||
|
||
static pthread_t g_lowpri; | ||
static pthread_t g_highpri; | ||
static volatile bool g_locked; | ||
static volatile bool g_pass; | ||
|
||
/**************************************************************************** | ||
* Private Functions | ||
****************************************************************************/ | ||
|
||
/**************************************************************************** | ||
* Name: highpri_thread | ||
****************************************************************************/ | ||
|
||
static FAR void *highpri_thread(FAR void *parameter) | ||
{ | ||
struct sched_param param; | ||
int policy; | ||
bool self = (bool)(uintptr_t)parameter; | ||
pthread_t thread = self ? 0 : g_lowpri; | ||
|
||
usleep(100); | ||
|
||
pthread_getschedparam(0, &policy, ¶m); | ||
if (self) | ||
{ | ||
param.sched_priority -= 2; | ||
} | ||
else | ||
{ | ||
param.sched_priority += 2; | ||
} | ||
|
||
sched_lock(); | ||
|
||
g_locked = true; | ||
|
||
nxsched_set_param(thread, ¶m); | ||
|
||
/* Test pass if g_locked was not cleared by lowpri thread while scheduler | ||
* is locked */ | ||
|
||
g_pass = g_locked; | ||
|
||
sched_unlock(); | ||
|
||
return NULL; | ||
} | ||
|
||
/**************************************************************************** | ||
* Name: lowpri_thread | ||
****************************************************************************/ | ||
|
||
static FAR void *lowpri_thread(FAR void *parameter) | ||
{ | ||
/* Wait until highpri thread starts the scheduler lock test */ | ||
|
||
while (!g_locked) | ||
{ | ||
} | ||
|
||
g_locked = false; | ||
|
||
return NULL; | ||
} | ||
|
||
/**************************************************************************** | ||
* Public Functions | ||
****************************************************************************/ | ||
|
||
/**************************************************************************** | ||
* Name: sched_lock_test | ||
****************************************************************************/ | ||
|
||
void sched_lock_test(void) | ||
{ | ||
int i; | ||
|
||
for (i = 0; i < 2; i++) | ||
{ | ||
pthread_attr_t attr; | ||
struct sched_param sparam; | ||
int status; | ||
int highprio; | ||
int lowprio; | ||
#ifdef CONFIG_SMP | ||
cpu_set_t cpu_mask; | ||
|
||
CPU_ZERO(&cpu_mask); | ||
CPU_SET(0, &cpu_mask); | ||
#endif | ||
|
||
status = sched_getparam(0, &sparam); | ||
if (status != 0) | ||
{ | ||
printf("priority: ERROR sched_getparam failed\n"); | ||
ASSERT(false); | ||
sparam.sched_priority = PTHREAD_DEFAULT_PRIORITY; | ||
} | ||
|
||
highprio = sparam.sched_priority - 2; | ||
lowprio = highprio - 1; | ||
|
||
/* Start the low priority thread */ | ||
|
||
printf("priority: Starting lowpri_thread at %d\n", lowprio); | ||
status = pthread_attr_init(&attr); | ||
if (status != 0) | ||
{ | ||
printf("priority: ERROR pthread_attr_init failed, status=%d\n", | ||
status); | ||
ASSERT(false); | ||
} | ||
|
||
sparam.sched_priority = lowprio; | ||
status = pthread_attr_setschedparam(&attr, &sparam); | ||
if (status != OK) | ||
{ | ||
printf("priority: " | ||
"ERROR pthread_attr_setschedparam failed, status=%d\n", | ||
status); | ||
ASSERT(false); | ||
} | ||
else | ||
{ | ||
printf("priority: Set lowpri_thread priority to %d\n", | ||
sparam.sched_priority); | ||
} | ||
|
||
#ifdef CONFIG_SMP | ||
pthread_attr_setaffinity_np(&attr, sizeof(cpu_set_t), &cpu_mask); | ||
#endif | ||
|
||
FFLUSH(); | ||
|
||
status = pthread_create(&g_lowpri, &attr, lowpri_thread, NULL); | ||
if (status != 0) | ||
{ | ||
printf("priority: ERROR pthread_create failed, status=%d\n", | ||
status); | ||
ASSERT(false); | ||
} | ||
|
||
/* Start the high priority thread */ | ||
|
||
printf("priority: Starting highpri_thread at %d\n", highprio); | ||
status = pthread_attr_init(&attr); | ||
if (status != 0) | ||
{ | ||
printf("priority: ERROR pthread_attr_init failed, status=%d\n", | ||
status); | ||
ASSERT(false); | ||
} | ||
|
||
sparam.sched_priority = highprio; | ||
status = pthread_attr_setschedparam(&attr, &sparam); | ||
if (status != OK) | ||
{ | ||
printf("priority: " | ||
"ERROR pthread_attr_setschedparam failed, status=%d\n", | ||
status); | ||
ASSERT(false); | ||
} | ||
else | ||
{ | ||
printf("priority: Set highpri_thread priority to %d\n", | ||
sparam.sched_priority); | ||
} | ||
|
||
#ifdef CONFIG_SMP | ||
pthread_attr_setaffinity_np(&attr, sizeof(cpu_set_t), &cpu_mask); | ||
#endif | ||
|
||
FFLUSH(); | ||
|
||
status = pthread_create(&g_highpri, &attr, highpri_thread, | ||
(FAR void *)(uintptr_t)(i == 0)); | ||
if (status != 0) | ||
{ | ||
printf("priority: ERROR pthread_create failed, status=%d\n", | ||
status); | ||
ASSERT(false); | ||
} | ||
|
||
printf("priority: Waiting...\n"); | ||
sleep(1); | ||
|
||
waitpid(g_highpri, &status, 0); | ||
waitpid(g_lowpri, &status, 0); | ||
|
||
if (!g_pass) | ||
{ | ||
printf("priority: ERROR: FAIL pre-emption occurred" | ||
"while scheduler was locked.\n"); | ||
ASSERT(false); | ||
} | ||
else | ||
{ | ||
printf("priority: PASSED No pre-emption occurred" | ||
"while scheduler was locked.\n"); | ||
} | ||
} | ||
|
||
printf("priority: Finished\n"); | ||
FFLUSH(); | ||
} |