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/* $Id$ -*- C -*- */
/* ===================================================================== */
/* */
/* = FILENAME */
/* Pthreads_Test.c */
/* */
/* = DESCRIPTION */
/* Testing the platform for POSIX threads thread specific storage. */
/* This is not meant to be an exhaustive test at this point but more */
/* a sanity check that PACE works (at least somewhat) as advertised. */
/* This program creates some threads, stores some thread specific */
/* information in each one (some time information) and then checks */
/* that the different threads contained different values. */
/* */
/* This test is largely taken from the O'Reilly _Pthreads */
/* Programming_ book and accompanying example code. */
/* */
/* = AUTHOR */
/* Joe Hoffert <joeh@cs.wustl.edu> */
/* */
/* ===================================================================== */
#include "pace/stdio.h"
#include "pace/stdlib.h"
#include "pace/time.h"
#include "pace/pthread.h"
#if defined (PACE_VXWORKS) && PACE_VXWORKS != 0
#include "vxworks_stub.c"
#endif /* VXWORKS */
#define NUM_THREADS 3
/*pace_pthread_key_t saved_time_key;*/
pace_pthread_key_t saved_ID_key;
/*void free_time (void *arg)*/
void free_ID (void *arg)
{
/*pace_timespec *timep = (pace_timespec *)arg;
pace_printf("free_time:\n");
pace_free(timep);*/
pace_pthread_t *threadp = (pace_pthread_t *)arg;
/* pace_printf("free_ID:\n"); */
pace_free(threadp);
}
/*void save_the_time (void)*/
long save_the_ID (void)
{
/*pace_timespec *timep;
timep = (pace_timespec *)malloc(sizeof(pace_timespec));
clock_gettime(1, timep);
pace_printf("save_the_time: \t\t%ld %ld\n",timep->tv_sec, timep->tv_nsec);
pace_pthread_setspecific(saved_time_key, (void *)timep);*/
pace_pthread_t *pace_thread =
(pace_pthread_t *)malloc(sizeof(pace_pthread_t));
*pace_thread = pace_pthread_self();
/* pace_printf("save_the_ID: \t\t%ld\n", (long)*pace_thread); */
pace_pthread_setspecific(saved_ID_key, (void *)pace_thread);
return ((long)*pace_thread);
}
/*void what_time_did_i_save (void)*/
long what_ID_did_i_save (void)
{
/*pace_timespec *timep;
timep = pace_pthread_getspecific(saved_time_key);
printf("what_time_did_i_save: \t%ld %ld\n",timep->tv_sec, timep->tv_nsec);*/
pace_pthread_t *pace_thread;
pace_thread = pace_pthread_getspecific(saved_ID_key);
/* pace_printf("what_ID_did_i_save: \t%ld\n", (long)*pace_thread); */
return ((long)*pace_thread);
}
void *thread_routine (void *arg)
{
long saved_id;
long retrieved_id;
/*int *my_id=(int *)arg;*/
PACE_UNUSED_ARG (arg);
/* pace_printf("thread_routine %d\n", *my_id); */
/*save_the_time();
what_time_did_i_save();*/
saved_id = save_the_ID();
pace_sleep (1);
retrieved_id = what_ID_did_i_save();
if (saved_id != retrieved_id)
{
pace_printf ("### ERROR ###: saved id %ld does not equal retrieved
id %ld.\n", saved_id, retrieved_id);
pace_exit (-1);
}
return (NULL);
}
int
main (int argc, char *argv[])
{
int i;
int *id_arg;
pace_pthread_t threads[NUM_THREADS];
PACE_UNUSED_ARG (argc);
PACE_UNUSED_ARG (argv);
id_arg = (int *) pace_malloc (NUM_THREADS * sizeof(int));
/* pace_printf("main : initializing the key\n"); */
/*pace_pthread_key_create(&saved_time_key, free_time);*/
pace_pthread_key_create(&saved_ID_key, free_ID);
/* pace_printf("main : spawning the threads\n"); */
for (i = 0; i < NUM_THREADS; i++)
{
id_arg[i] = i;
pace_pthread_create(&(threads[i]),
NULL,
thread_routine,
(void *) &(id_arg[i]));
}
for (i = 0; i < NUM_THREADS; i++)
{
pace_pthread_join(threads[i], NULL);
/* pace_printf("main : thread %d has finished. \n", i); */
}
/* pace_printf("main : goodbye\n"); */
return 0;
}
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