thrspecific.c

Go to the documentation of this file.

/* This file performs the following test: start, stop and timer
functionality for 2 slave pthreads */

/* No it doesn't, that description is *completely* wrong */

/* I think this is trying to test the pthread thread-specific */
/* implementation but it is unclear and the git commit history */
/* does not help at all here */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>

#include "papi.h"
#include "papi_test.h"

static volatile int processing = 1;

void *
Thread( void *arg )
{
    int retval;
    void *arg2;
    int i;

    retval = PAPI_register_thread(  );
    if ( retval != PAPI_OK ) {
        test_fail( __FILE__, __LINE__, "PAPI_register_thread", retval );
    }

    if (!TESTS_QUIET) {
        printf( "Thread %#x started, specific data is at %p\n",
            ( int ) pthread_self(  ), arg );
    }

    retval = PAPI_set_thr_specific( PAPI_USR1_TLS, arg );
    if ( retval != PAPI_OK ) {
        test_fail( __FILE__, __LINE__, "PAPI_set_thr_specific", retval );
    }

    retval = PAPI_get_thr_specific( PAPI_USR1_TLS, &arg2 );
    if ( retval != PAPI_OK ) {
        test_fail( __FILE__, __LINE__, "PAPI_get_thr_specific", retval );
    }

    if ( arg != arg2 ) {
        test_fail( __FILE__, __LINE__, "set vs get specific", 0 );
    }

    while ( processing ) {
        if ( *( ( int * ) arg ) == 500000 ) {
            sleep( 1 );

            PAPI_all_thr_spec_t data;
            data.num = 10;
            data.id = ( unsigned long * ) malloc( ( size_t ) data.num *
                                            sizeof ( unsigned long ) );
            data.data = ( void ** ) malloc( ( size_t ) data.num * sizeof ( void * ) );

            retval = PAPI_get_thr_specific( PAPI_USR1_TLS | PAPI_TLS_ALL_THREADS,
                                       ( void ** ) &data );
            if ( retval != PAPI_OK ) {
                test_fail( __FILE__, __LINE__, "PAPI_get_thr_specific",
                           retval );
            }

            if ( data.num != 5 ) {
                test_fail( __FILE__, __LINE__, "data.num != 5", 0 );
            }

            if (!TESTS_QUIET) for ( i = 0; i < data.num; i++ ) {
                printf( "Entry %d, Thread %#lx, Data Pointer %p, Value %d\n",
                        i, data.id[i], data.data[i], *( int * ) data.data[i] );
            }
            processing = 0;
        }
    }

    retval = PAPI_unregister_thread(  );
    if ( retval != PAPI_OK ) {
        test_fail( __FILE__, __LINE__, "PAPI_unregister_thread", retval );
    }

    return NULL;
}

int
main( int argc, char **argv )
{
    pthread_t e_th, f_th, g_th, h_th;
    int flops1, flops2, flops3, flops4, flops5;
    int retval, rc;
    pthread_attr_t attr;
    int quiet;

    /* Set TESTS_QUIET variable */
    quiet = tests_quiet( argc, argv );

    if (!quiet) printf("Testing threads\n");

    retval = PAPI_library_init( PAPI_VER_CURRENT );
    if ( retval != PAPI_VER_CURRENT ) {
        test_fail( __FILE__, __LINE__, "PAPI_library_init", retval );
    }

    retval = PAPI_thread_init( ( unsigned long ( * )( void ) )
                ( pthread_self ) );
    if ( retval != PAPI_OK ) {
        if ( retval == PAPI_ECMP ) {
            test_skip( __FILE__, __LINE__,
                    "PAPI_thread_init", retval );
        }
        else {
            test_fail( __FILE__, __LINE__,
                "PAPI_thread_init", retval );
        }
    }

    pthread_attr_init( &attr );

#ifdef PTHREAD_CREATE_UNDETACHED
    pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_UNDETACHED );
#endif

#ifdef PTHREAD_SCOPE_SYSTEM
    retval = pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM );
    if ( retval != 0 ) {
        test_skip( __FILE__, __LINE__, "pthread_attr_setscope", retval );
    }
#endif

    flops1 = 1000000;
    rc = pthread_create( &e_th, &attr, Thread, ( void * ) &flops1 );
    if ( rc ) {
        retval = PAPI_ESYS;
        test_fail( __FILE__, __LINE__, "pthread_create", retval );
    }

    flops2 = 2000000;
    rc = pthread_create( &f_th, &attr, Thread, ( void * ) &flops2 );
    if ( rc ) {
        retval = PAPI_ESYS;
        test_fail( __FILE__, __LINE__, "pthread_create", retval );
    }

    flops3 = 4000000;
    rc = pthread_create( &g_th, &attr, Thread, ( void * ) &flops3 );
    if ( rc ) {
        retval = PAPI_ESYS;
        test_fail( __FILE__, __LINE__, "pthread_create", retval );
    }

    flops4 = 8000000;
    rc = pthread_create( &h_th, &attr, Thread, ( void * ) &flops4 );
    if ( rc ) {
        retval = PAPI_ESYS;
        test_fail( __FILE__, __LINE__, "pthread_create", retval );
    }

    pthread_attr_destroy( &attr );

    flops5 = 500000;
    Thread( &flops5 );

    pthread_join( h_th, NULL );
    pthread_join( g_th, NULL );
    pthread_join( f_th, NULL );
    pthread_join( e_th, NULL );

    test_pass( __FILE__ );

    pthread_exit( NULL );

    return 1;
}