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/***************************************************************************/
/* Copyright (c) 2024 Microsoft Corporation */
/* Copyright (c) 2026 Eclipse ThreadX contributors */
/* */
/* This program and the accompanying materials are made available under */
/* the terms of the MIT License which is available at */
/* https://opensource.org/licenses/MIT. */
/* */
/* SPDX-License-Identifier: MIT */
/***************************************************************************/
/* This test is designed to see if multiple threads can be created and relinquish control between them. */
#include <stdio.h>
#include "tx_api.h"
static unsigned long thread_0_counter = 0;
static TX_THREAD thread_0;
static unsigned long thread_1_counter = 0;
static TX_THREAD thread_1;
static unsigned long thread_2_counter = 0;
static TX_THREAD thread_2;
static unsigned long thread_3_counter = 0;
static TX_THREAD thread_3;
/* Define thread prototypes. */
static void thread_0_entry(ULONG thread_input);
static void thread_1_entry(ULONG thread_input);
static void thread_2_entry(ULONG thread_input);
static void thread_3_entry(ULONG thread_input);
/* Prototype for test control return. */
void test_control_return(UINT status);
/* Define what the initial system looks like. */
#ifdef CTEST
void test_application_define(void *first_unused_memory)
#else
void threadx_thread_relinquish_application_define(void *first_unused_memory)
#endif
{
UINT status;
CHAR *pointer;
/* Put first available memory address into a character pointer. */
pointer = (CHAR *) first_unused_memory;
/* Put system definition stuff in here, e.g. thread creates and other assorted
create information. */
/* Create thread 0. */
status = tx_thread_create(&thread_0, "thread 0", thread_0_entry, 0,
pointer, TEST_STACK_SIZE_PRINTF,
16, 16, TX_NO_TIME_SLICE, TX_AUTO_START);
pointer = pointer + TEST_STACK_SIZE_PRINTF;
/* Check for status. */
if (status != TX_SUCCESS)
{
printf("Running Thread Relinquish Test...................................... ERROR #1\n");
test_control_return(1);
}
/* Create thread 1. */
status = tx_thread_create(&thread_1, "thread 1", thread_1_entry, 1,
pointer, TEST_STACK_SIZE_PRINTF,
16, 16, TX_NO_TIME_SLICE, TX_AUTO_START);
pointer = pointer + TEST_STACK_SIZE_PRINTF;
/* Check for status. */
if (status != TX_SUCCESS)
{
printf("Running Thread Relinquish Test...................................... ERROR #2\n");
test_control_return(1);
}
/* Create thread 2. */
status = tx_thread_create(&thread_2, "thread 2", thread_2_entry, 2,
pointer, TEST_STACK_SIZE_PRINTF,
16, 16, TX_NO_TIME_SLICE, TX_AUTO_START);
pointer = pointer + TEST_STACK_SIZE_PRINTF;
/* Check for status. */
if (status != TX_SUCCESS)
{
printf("Running Thread Relinquish Test...................................... ERROR #3\n");
test_control_return(1);
}
/* Create thread 3. */
status = tx_thread_create(&thread_3, "thread 3", thread_3_entry, 3,
pointer, TEST_STACK_SIZE_PRINTF,
16, 16, TX_NO_TIME_SLICE, TX_AUTO_START);
pointer = pointer + TEST_STACK_SIZE_PRINTF;
/* Check for status. */
if (status != TX_SUCCESS)
{
printf("Running Thread Relinquish Test...................................... ERROR #4\n");
test_control_return(1);
}
}
/* Define the test threads. */
static void thread_0_entry(ULONG thread_input)
{
/* Check for correct input value and execution of other threads. */
if ((thread_input != 0) || (thread_1_counter) || (thread_2_counter) ||
(thread_3_counter))
return;
/* Increment thread 0 counter. */
thread_0_counter++;
/* Relinquish to other thread(s). */
tx_thread_relinquish();
}
static void thread_1_entry(ULONG thread_input)
{
/* Check for correct input value and execution of other threads. */
if ((thread_input != 1) || (thread_0_counter != 1) || (thread_2_counter) ||
(thread_3_counter))
return;
/* Increment thread 1 counter. */
thread_1_counter++;
/* Relinquish to other thread(s). */
tx_thread_relinquish();
}
static void thread_2_entry(ULONG thread_input)
{
/* Check for correct input value and execution of other threads. */
if ((thread_input != 2) || (thread_0_counter != 1) || (thread_1_counter != 1) ||
(thread_3_counter))
return;
/* Increment thread 2 counter. */
thread_2_counter++;
/* Relinquish to other thread(s). */
tx_thread_relinquish();
}
static void thread_3_entry(ULONG thread_input)
{
/* Inform user. */
printf("Running Thread Relinquish Test...................................... ");
/* Check for correct input value and execution of other threads. */
if ((thread_input != 3) || (thread_0_counter != 1) || (thread_1_counter != 1) ||
(thread_2_counter != 1) || (thread_0.tx_thread_state != TX_READY) ||
(thread_1.tx_thread_state != TX_READY) || (thread_2.tx_thread_state != TX_READY))
return;
/* Increment thread 3 counter. */
thread_3_counter++;
/* Immediate response relinquish. */
tx_thread_relinquish();
/* All other threads should be completed now. */
if ((thread_0.tx_thread_state != TX_COMPLETED) || (thread_1.tx_thread_state != TX_COMPLETED) ||
(thread_2.tx_thread_state != TX_COMPLETED))
{
/* Thread Relinquish error. */
printf("ERROR #5\n");
test_control_return(1);
}
/* Execute immediate response relinquish. */
tx_thread_relinquish();
/* Successful thread relinquish test. */
printf("SUCCESS!\n");
test_control_return(0);
}
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