tests/legacy/kernel/test_mutex/src/task12.c

/* Task12.c - helper file for testing microkernel mutex APIs */

/*
 * Copyright (c) 2015-2016 Wind River Systems, Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/*
 * @file
 * @brief mutex test helper
 *
 * This module defines a task that is used in recursive mutex locking tests.
 * It helps ensure that a private mutex can be referenced in a file other than
 * the one it was defined in.
 */

#include <tc_util.h>
#include <zephyr.h>

#define  ONE_SECOND                 (sys_clock_ticks_per_sec)
#define  HALF_SECOND                (sys_clock_ticks_per_sec / 2)
#define  THIRD_SECOND               (sys_clock_ticks_per_sec / 3)
#define  FOURTH_SECOND              (sys_clock_ticks_per_sec / 4)

static int tcRC = TC_PASS;         /* test case return code */

extern kmutex_t const private_mutex;

/**
 *
 * Task12 - task that participates in recursive locking tests
 *
 * @return  N/A
 */

void Task12(void)
{
	int  rv;

	/* Wait for private mutex to be released */

	rv = task_mutex_lock(private_mutex, TICKS_UNLIMITED);
	if (rv != RC_OK) {
		tcRC = TC_FAIL;
		TC_ERROR("Failed to obtain private mutex\n");
		return;
	}

	/* Wait a bit, then release the mutex */

	task_sleep(HALF_SECOND);
	task_mutex_unlock(private_mutex);

}