/*
 * 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 <memstr.h>

#define VAL_COUNT   1024

static void * data[VAL_COUNT];

static void testit(int size, int count, bool quiet) 
{
	slab_cache_t *cache;
	int i;
	
	if (!quiet)
		printf("Creating cache, object size: %d.\n", size);
	
	cache = slab_cache_create("test_cache", size, 0, NULL, NULL,
				SLAB_CACHE_NOMAGAZINE);
	
	if (!quiet)
		printf("Allocating %d items...", count);
	
	for (i = 0; i < count; i++) {
		data[i] = slab_alloc(cache, 0);
		memsetb((uintptr_t) data[i], size, 0);
	}
	
	if (!quiet) {
		printf("done.\n");
		printf("Freeing %d items...", count);
	}
	
	for (i = 0; i < count; i++)
		slab_free(cache, data[i]);
	
	if (!quiet) {
		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);
	}
	
	if (!quiet) {
		printf("done.\n");
		printf("Freeing %d items...", count / 2);
	}
	
	for (i = count - 1; i >= count / 2; i--)
		slab_free(cache, data[i]);
	
	if (!quiet) {
		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);
	}
	
	if (!quiet) {
		printf("done.\n");
		printf("Freeing %d items...", count);
	}
	
	for (i = 0; i < count; i++)
		slab_free(cache, data[i]);
	
	if (!quiet)
		printf("done.\n");	
	slab_cache_destroy(cache);
	
	if (!quiet)
		printf("Test complete.\n");
}

static void testsimple(bool quiet)
{
	testit(100, VAL_COUNT, quiet);
	testit(200, VAL_COUNT, quiet);
	testit(1024, VAL_COUNT, quiet);
	testit(2048, 512, quiet);
	testit(4000, 128, quiet);
	testit(8192, 128, quiet);
	testit(16384, 128, quiet);
	testit(16385, 128, quiet);
}

#define THREADS     6
#define THR_MEM_COUNT   1024
#define THR_MEM_SIZE    128

static void * thr_data[THREADS][THR_MEM_COUNT];
static slab_cache_t *thr_cache;
static semaphore_t thr_sem;
static bool sh_quiet;

static void slabtest(void *data)
{
	int offs = (int) (unative_t) data;
	int i, j;
	
	thread_detach(THREAD);
	
	if (!sh_quiet)
		printf("Starting thread #%llu...\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]);
	}
	
	if (!sh_quiet)
		printf("Thread #%llu finished\n", THREAD->tid);
	
	semaphore_up(&thr_sem);
}

static void testthreads(bool quiet)
{
	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", false))) {
			if (!quiet)
				printf("Could not create thread %d\n", i);
		} else
			thread_ready(t);
	}

	for (i = 0; i < THREADS; i++)
		semaphore_down(&thr_sem);
	
	slab_cache_destroy(thr_cache);
	
	if (!quiet)
		printf("Test complete.\n");
}

char * test_slab1(bool quiet)
{
	sh_quiet = quiet;
	
	testsimple(quiet);
	testthreads(quiet);
	
	return NULL;
}