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/*

 * Copyright (C) 2006 Ondrej Palkovsky

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * - Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 * - Redistributions in binary form must reproduce the above copyright

 *   notice, this list of conditions and the following disclaimer in the

 *   documentation and/or other materials provided with the distribution.

 * - The name of the author may not be used to endorse or promote products

 *   derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#include <test.h>

#include <mm/slab.h>

#include <print.h>

#include <proc/thread.h>

#include <arch.h>

#include <panic.h>

#include <memstr.h>

#ifdef CONFIG_BENCH

#include <arch/cycle.h>

#endif

#define VAL_COUNT   1024

static void * data[VAL_COUNT];

static void testit(int size, int count)

{

    slab_cache_t *cache;

    int i;

    printf("Creating cache, object size: %d.\n", size);

    cache = slab_cache_create("test_cache", size, 0, NULL, NULL,

                  SLAB_CACHE_NOMAGAZINE);  

    printf("Allocating %d items...", count);

    for (i=0; i < count; i++) {

        data[i] = slab_alloc(cache, 0);

        memsetb((uintptr_t)data[i], size, 0);

    }

    printf("done.\n");

    printf("Freeing %d items...", count);

    for (i=0; i < count; i++) {

        slab_free(cache, data[i]);

    }

    printf("done.\n");

    printf("Allocating %d items...", count);

    for (i=0; i < count; i++) {

        data[i] = slab_alloc(cache, 0);

        memsetb((uintptr_t)data[i], size, 0);

    }

    printf("done.\n");

    printf("Freeing %d items...", count/2);

    for (i=count-1; i >= count/2; i--) {

        slab_free(cache, data[i]);

    }

    printf("done.\n"); 

    printf("Allocating %d items...", count/2);

    for (i=count/2; i < count; i++) {

        data[i] = slab_alloc(cache, 0);

        memsetb((uintptr_t)data[i], size, 0);

    }

    printf("done.\n");

    printf("Freeing %d items...", count);

    for (i=0; i < count; i++) {

        slab_free(cache, data[i]);

    }

    printf("done.\n"); 

    slab_cache_destroy(cache);

    printf("Test complete.\n");

}

static void testsimple(void)

{

    testit(100, VAL_COUNT);

    testit(200, VAL_COUNT);

    testit(1024, VAL_COUNT);

    testit(2048, 512);

    testit(4000, 128);

    testit(8192, 128);

    testit(16384, 128);

    testit(16385, 128);

}

#define THREADS     6

#define THR_MEM_COUNT   1024

#define THR_MEM_SIZE    128

void * thr_data[THREADS][THR_MEM_COUNT];

slab_cache_t *thr_cache;

semaphore_t thr_sem;

static void slabtest(void *data)

{

    int offs = (int)(unative_t) data;

    int i,j;

    thread_detach(THREAD);

    printf("Starting thread #%d...\n",THREAD->tid);

    for (j=0; j<10; j++) {

        for (i=0; i<THR_MEM_COUNT; i++)

            thr_data[offs][i] = slab_alloc(thr_cache,0);

        for (i=0; i<THR_MEM_COUNT/2; i++)

            slab_free(thr_cache, thr_data[offs][i]);

        for (i=0; i< THR_MEM_COUNT/2; i++)

            thr_data[offs][i] = slab_alloc(thr_cache, 0);

        for (i=0; i<THR_MEM_COUNT;i++)

            slab_free(thr_cache, thr_data[offs][i]);

    }

    printf("Thread #%d finished\n", THREAD->tid);

    semaphore_up(&thr_sem);

}

static void testthreads(void)

{

    thread_t *t;

    int i;

    thr_cache = slab_cache_create("thread_cache", THR_MEM_SIZE, 0,

                      NULL, NULL,

                      SLAB_CACHE_NOMAGAZINE);

    semaphore_initialize(&thr_sem,0);

    for (i=0; i<THREADS; i++) {  

        if (!(t = thread_create(slabtest, (void *)(unative_t)i, TASK, 0, "slabtest")))

            panic("could not create thread\n");

        thread_ready(t);

    }

    for (i=0; i<THREADS; i++)

        semaphore_down(&thr_sem);

    slab_cache_destroy(thr_cache);

    printf("Test complete.\n");

}

void test_slab1(void)

{

#ifdef CONFIG_BENCH

    uint64_t t0 = get_cycle();

#endif

    testsimple();

    testthreads();

#ifdef CONFIG_BENCH

    uint64_t dt = get_cycle() - t0;

    printf("Time: %.*d cycles\n", sizeof(dt) * 2, dt);

#endif

}