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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 */
/***************************************************************************/
/* Simple nested-signaling test. */
#include "pthread.h"
#define DEMO_STACK_SIZE 2048
#define DEMO_BYTE_POOL_SIZE 9120
/* Define the POSIX pthread object control blocks ... */
pthread_t pthread_0;
/* Define pthread attributes objects */
pthread_attr_t ptattr0;
/* Define the counters used in this test application... */
ULONG pthread_0_counter;
ULONG pthread_0_signal_counter15;
ULONG pthread_0_signal_counter14;
ULONG pthread_0_signal_counter13;
/* Define pthread function prototypes. */
VOID *pthread_0_entry(VOID *);
/* Define signal handlers. */
VOID pthread_0_signal_handler15(int);
VOID pthread_0_signal_handler14(int);
VOID pthread_0_signal_handler13(int);
ULONG free_memory[192*1024 / sizeof(ULONG)];
/* Define main entry point. */
INT main()
{
/* Enter the ThreadX kernel. */
tx_kernel_enter();
}
/* Define what the initial system looks like. */
VOID tx_application_define(VOID *first_unused_memory)
{
VOID* storage_ptr;
struct sched_param param;
/* Init POSIX Wrapper */
storage_ptr = (VOID*) posix_initialize((VOID* )free_memory);
/* Put system definition stuff in here, e.g. pthread creates and other assoerted
create information. */
/* Create pthread attributes. */
pthread_attr_init(&ptattr0);
/* Create a sched_param structure */
memset(¶m, 0, sizeof(param));
/* Now create all pthreads , firstly modify respective ptheread
attribute with desired priority and stack start address and then create the pthread */
/* Create pthread 0. */
param.sched_priority = 10;
pthread_attr_setschedparam(&ptattr0, ¶m);
pthread_attr_setstackaddr(&ptattr0, storage_ptr );
storage_ptr = (int *) storage_ptr + DEMO_STACK_SIZE;
pthread_create (&pthread_0, &ptattr0,pthread_0_entry,NULL);
}
VOID error_handler(void)
{
while(1)
{
}
}
/* Define the signal handlers. */
VOID pthread_0_signal_handler13(int signo)
{
/* Check for pthread self call not pthread 0. The signal handler should appear to be
called from pthread 0. */
if (pthread_self() != pthread_0)
{
/* Call error handler. */
error_handler();
}
/* Check for proper signal. */
if (signo != 13)
{
/* Call error handler. */
error_handler();
}
/* Just increment the signal counter for this test. */
pthread_0_signal_counter13++;
}
VOID pthread_0_signal_handler14(int signo)
{
/* Check for pthread self call not pthread 0. The signal handler should appear to be
called from pthread 0. */
if (pthread_self() != pthread_0)
{
/* Call error handler. */
error_handler();
}
/* Check for proper signal. */
if (signo != 14)
{
/* Call error handler. */
error_handler();
}
/* Just increment the signal counter for this test. */
pthread_0_signal_counter14++;
/* Raise another signal for nesting test. */
pthread_kill(pthread_0, 13);
}
VOID pthread_0_signal_handler15(int signo)
{
/* Check for pthread self call not pthread 0. The signal handler should appear to be
called from pthread 0. */
if (pthread_self() != pthread_0)
{
/* Call error handler. */
error_handler();
}
/* Check for proper signal. */
if (signo != 15)
{
/* Call error handler. */
error_handler();
}
/* Just increment the signal counter for this test. */
pthread_0_signal_counter15++;
/* Raise another signal for nesting test. */
pthread_kill(pthread_0, 14);
}
/* Define the test pthreads */
INT pt0_status=0;
/* Self signal test. */
VOID *pthread_0_entry(VOID *pthread0_input)
{
/* Register the signal handlers. */
pt0_status = signal(15, pthread_0_signal_handler15);
/* Check for error. */
if (pt0_status)
error_handler();
pt0_status = signal(14, pthread_0_signal_handler14);
/* Check for error. */
if (pt0_status)
error_handler();
pt0_status = signal(13, pthread_0_signal_handler13);
/* Check for error. */
if (pt0_status)
error_handler();
/* This pthread simply sits in while-forever-sleep loop */
while(1)
{
/* Increment the pthread counter.*/
pthread_0_counter++;
/* Raise the signal. */
pt0_status = pthread_kill(pthread_0, 15);
/* Check for errors. */
if ((pt0_status) ||
(pthread_0_counter != pthread_0_signal_counter15) ||
(pthread_0_counter != pthread_0_signal_counter14) ||
(pthread_0_counter != pthread_0_signal_counter13))
{
error_handler();
break;
}
}
return(&pt0_status);
}
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