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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 test suspension on a memory byte pool. */
#include <stdio.h>
#include "tx_api.h"
#include "threadx_test_port.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;
static TX_BYTE_POOL pool_0;
/* 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);
#ifndef TX_MANUAL_TEST
/* Define test flags for automated test. */
extern TEST_FLAG threadx_byte_allocate_loop_test;
extern TEST_FLAG threadx_byte_release_loop_test;
#endif
void abort_and_resume_byte_allocating_thread(void)
{
UCHAR *search_ptr;
/* Adjust the search pointer to avoid the search pointer change for this test. */
search_ptr = pool_0.tx_byte_pool_search;
while (search_ptr >= pool_0.tx_byte_pool_search)
{
search_ptr = *((UCHAR **) ((VOID *) search_ptr));
}
pool_0.tx_byte_pool_search = search_ptr;
tx_thread_wait_abort(&thread_3);
tx_thread_resume(&thread_3);
}
/* 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_byte_memory_suspension_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. */
status = tx_thread_create(&thread_0, "thread 0", thread_0_entry, 1,
pointer, TEST_STACK_SIZE_PRINTF,
17, 17, 100, TX_AUTO_START);
pointer = pointer + TEST_STACK_SIZE_PRINTF;
/* Check status. */
if (status != TX_SUCCESS)
{
printf("Running Byte Memory Suspension Test................................. ERROR #1\n");
test_control_return(1);
}
status = tx_thread_create(&thread_1, "thread 1", thread_1_entry, 1,
pointer, TEST_STACK_SIZE_PRINTF,
17, 17, 100, TX_AUTO_START);
pointer = pointer + TEST_STACK_SIZE_PRINTF;
/* Check status. */
if (status != TX_SUCCESS)
{
printf("Running Byte Memory Suspension Test................................. ERROR #2\n");
test_control_return(1);
}
status = tx_thread_create(&thread_2, "thread 2", thread_2_entry, 2,
pointer, TEST_STACK_SIZE_PRINTF,
17, 17, 100, TX_DONT_START);
pointer = pointer + TEST_STACK_SIZE_PRINTF;
status += tx_thread_create(&thread_3, "thread 3", thread_3_entry, 3,
pointer, TEST_STACK_SIZE_PRINTF,
16, 16, 100, TX_DONT_START);
pointer = pointer + TEST_STACK_SIZE_PRINTF;
/* Check status. */
if (status != TX_SUCCESS)
{
printf("Running Byte Memory Suspension Test................................. ERROR #3\n");
test_control_return(1);
}
/* Create byte pool 0. */
status = tx_byte_pool_create(&pool_0, "pool 0", pointer, TX_TEST_BYTE_POOL_BYTES(108));
pointer = pointer + TX_TEST_BYTE_POOL_BYTES(108);
/* Check status. */
if (status != TX_SUCCESS)
{
printf("Running Byte Memory Suspension Test................................. ERROR #4\n");
test_control_return(1);
}
}
/* Define the test threads. */
static void thread_0_entry(ULONG thread_input)
{
UINT status;
CHAR *pointer;
/* Inform user. */
printf("Running Byte Memory Suspension Test................................. ");
/* Increment the thread counter. */
thread_0_counter++;
/* Allocate memory from the pool. Only one block of this size will fit. */
status = tx_byte_allocate(&pool_0, (VOID **) &pointer, 60, TX_NO_WAIT);
/* Check status. */
if (status != TX_SUCCESS)
{
/* Byte memory error. */
printf("ERROR #5\n");
test_control_return(1);
}
/* Let other thread suspend on byte pool. */
tx_thread_relinquish();
/* Now release the blocks. */
status = tx_byte_release(pointer);
/* Check status. */
if ((status != TX_SUCCESS) && (thread_1_counter == 0))
{
/* Byte memory error. */
printf("ERROR #6\n");
test_control_return(1);
}
/* Let other thread run again. */
tx_thread_relinquish();
/* Check to make sure thread 1 has now run. */
if (thread_1_counter != 1)
{
/* Byte memory error. */
printf("ERROR #7\n");
test_control_return(1);
}
/* Now allocate the memory again. Only one block of this size will fit. */
status = tx_byte_allocate(&pool_0, (VOID **) &pointer, 60, TX_NO_WAIT);
/* Check status. */
if (status != TX_SUCCESS)
{
/* Byte memory error. */
printf("ERROR #8\n");
test_control_return(1);
}
/* Resume the second thread. */
tx_thread_resume(&thread_2);
/* Now relinquish to let both thread 1 and 2 suspend. */
tx_thread_relinquish();
/* At this point both threads should be suspended on the byte pool. */
/* Release the memory again. */
status = tx_byte_release(pointer);
/* Check status. */
if (status != TX_SUCCESS)
{
/* Byte memory error. */
printf("ERROR #9\n");
test_control_return(1);
}
/* Now relinquish to get the other threads to run once. */
tx_thread_relinquish();
tx_thread_relinquish();
/* At this point both threads 1 and 2 are suspended on the byte pool again. */
if ((thread_1_counter != 3) && (thread_2_counter != 1))
{
/* Byte memory error. */
printf("ERROR #10\n");
test_control_return(1);
}
/* Now allocate the memory again. Only one block of this size will fit. */
status = tx_byte_allocate(&pool_0, (VOID **) &pointer, 60, TX_NO_WAIT);
/* Check status. */
if (status != TX_SUCCESS)
{
/* Byte memory error. */
printf("ERROR #10a\n");
test_control_return(1);
}
/* Resume thread 3 to get it suspended on the the pool. */
tx_thread_resume(&thread_3);
#ifdef TX_MANUAL_TEST
/* Set BP hear. Now release the memory and step into the code. After byte search issue IRQ2 mannually, which will
make thread 3 abort the first request and make another request of a different size. This is the path we are trying
to generate in the test. */
status = tx_byte_release(pointer);
#else
/* Set the flag that will make thread 3 abort the first request and make another request of a different size. This tests the memory size change path
in the byte release loop logic. */
threadx_byte_release_loop_test = 1;
status = tx_byte_release(pointer);
#endif
/* Check status. */
if (status != TX_SUCCESS)
{
/* Byte memory error. */
printf("ERROR #10b\n");
test_control_return(1);
}
else
{
/* Successful test. */
printf("SUCCESS!\n");
test_control_return(0);
}
}
static void thread_1_entry(ULONG thread_input)
{
UINT status;
CHAR *pointer;
while(1)
{
/* Allocate memory from the pool. */
status = tx_byte_allocate(&pool_0, (VOID **) &pointer, 60, TX_WAIT_FOREVER);
/* Check status. */
if (status != TX_SUCCESS)
return;
/* Increment the thread counter. */
thread_1_counter++;
/* Now release each of the blocks. */
status = tx_byte_release(pointer);
/* Check for status. */
if (status != TX_SUCCESS)
return;
/* Let thread 0 run again. */
tx_thread_relinquish();
}
}
static void thread_2_entry(ULONG thread_input)
{
UINT status;
CHAR *pointer;
while(1)
{
/* Allocate memory from the pool. */
status = tx_byte_allocate(&pool_0, (VOID **) &pointer, 60, TX_WAIT_FOREVER);
/* Check status. */
if (status != TX_SUCCESS)
return;
/* Increment the thread counter. */
thread_2_counter++;
/* Now release each of the blocks. */
status = tx_byte_release(pointer);
/* Check for status. */
if (status != TX_SUCCESS)
return;
/* Let thread 0 run again. */
tx_thread_relinquish();
}
}
static void thread_3_entry(ULONG thread_input)
{
UINT status;
CHAR *pointer;
while (1)
{
/* Allocate memory from the pool. */
tx_byte_allocate(&pool_0, (VOID **) &pointer, 60, TX_WAIT_FOREVER);
#ifdef TX_MANUAL_TEST
/* Set BP here and manually clear the owner after one failed byte search just to test the loop
construct in tx_byte_allocate.c. */
status = tx_byte_allocate(&pool_0, (VOID **) &pointer, 90, TX_WAIT_FOREVER);
#else
/* Set the flag that clears the pool owner after one failed byte search to test the loop
construct processing in tx_byte_allocate.c. */
threadx_byte_allocate_loop_test = 1;
status = tx_byte_allocate(&pool_0, (VOID **) &pointer, 90, TX_WAIT_FOREVER);
#endif
/* Check for status. */
if (status != TX_SUCCESS)
return;
/* Increment the thread counter. */
thread_3_counter++;
/* Now release the block. */
status = tx_byte_release(pointer);
/* Check for status. */
if (status != TX_SUCCESS)
return;
/* suspend this thread. */
tx_thread_suspend(&thread_3);
}
}
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