thread_competition.c File Reference

#include <zephyr.h>
#include <ztest.h>
#include <sys/mutex.h>

Macros
#define	HIGH_T1   0xaaa
#define	HIGH_T2   0xbbb
#define	LOW_PRO   0xccc
#define	STACKSIZE   (512 + CONFIG_TEST_EXTRA_STACKSIZE)

Functions
static	K_THREAD_STACK_DEFINE (thread_low_stack,(512+CONFIG_TEST_EXTRA_STACKSIZE))
static	K_THREAD_STACK_DEFINE (thread_high_stack1,(512+CONFIG_TEST_EXTRA_STACKSIZE))
static	K_THREAD_STACK_DEFINE (thread_high_stack2,(512+CONFIG_TEST_EXTRA_STACKSIZE))
	SYS_MUTEX_DEFINE (mutex)
static void	low_prio_wait_for_mutex (void *p1, void *p2, void *p3)
static void	high_prio_t1_wait_for_mutex (void *p1, void *p2, void *p3)
static void	high_prio_t2_wait_for_mutex (void *p1, void *p2, void *p3)
void	test_mutex_multithread_competition (void)
	Test multi-threads to take mutex. More...

Variables
static struct k_thread	thread_low_data
static struct k_thread	thread_high_data1
static struct k_thread	thread_high_data2
static uint32_t	flag [3]
static uint32_t	index

Macro Definition Documentation

HIGH_T1

#define HIGH_T1   0xaaa

HIGH_T2

#define HIGH_T2   0xbbb

LOW_PRO

#define LOW_PRO   0xccc

STACKSIZE

#define STACKSIZE   (512 + CONFIG_TEST_EXTRA_STACKSIZE)

Function Documentation

high_prio_t1_wait_for_mutex()

static void high_prio_t1_wait_for_mutex ( void *  p1, void *  p2, void *  p3  )

static

high_prio_t2_wait_for_mutex()

static void high_prio_t2_wait_for_mutex ( void *  p1, void *  p2, void *  p3  )

static

K_THREAD_STACK_DEFINE() [1/3]

static K_THREAD_STACK_DEFINE ( thread_high_stack1  , (512+CONFIG_TEST_EXTRA_STACKSIZE)    )

static

K_THREAD_STACK_DEFINE() [2/3]

static K_THREAD_STACK_DEFINE ( thread_high_stack2  , (512+CONFIG_TEST_EXTRA_STACKSIZE)    )

static

K_THREAD_STACK_DEFINE() [3/3]

static K_THREAD_STACK_DEFINE ( thread_low_stack  , (512+CONFIG_TEST_EXTRA_STACKSIZE)    )

static

low_prio_wait_for_mutex()

static void low_prio_wait_for_mutex ( void *  p1, void *  p2, void *  p3  )

static

SYS_MUTEX_DEFINE()

SYS_MUTEX_DEFINE

(

mutex

)

test_mutex_multithread_competition()

void test_mutex_multithread_competition

(

void

)

Test multi-threads to take mutex.

Define three threads, and set a higher priority for two of them, and set a lower priority for the last one. Then Add a delay between creating the two high priority threads. Test point:

1. Any number of threads may wait on a mutex locked by others simultaneously.
2. When the mutex is released, it is took by the highest priority thread that has waited longest.

Variable Documentation

flag

uint32_t flag[3]

static

index

uint32_t index

static

thread_high_data1

struct k_thread thread_high_data1

static

thread_high_data2

struct k_thread thread_high_data2

static

thread_low_data

struct k_thread thread_low_data

static