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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2011 Thomas Martitz
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "core_alloc.h"
#include "util.h"
/*
* Expected output (64-bit):
-------------------
MOVED!
0x6032e0: val: 1285 (first)
0x605b08: val: 1285 (third)
0x608330: val: 1413 (fourth)
0x60af58: val: 2181 (fifth)
SHRINK! 517
MOVED!
0x6032e0: val: 1285 (first)
0x605b08: val: 645 (third)
0x606f30: val: 1413 (fourth)
0x609b58: val: 2181 (fifth)
0x60df80: val: 517 (sixth)
-------------------
*/
#define error(...) do { printf(__VA_ARGS__); exit(1); } while(0)
static int move_callback(int handle, void* old, void* new)
{
printf("MOVED!\n");
return BUFLIB_CB_OK;
}
static int shrink_callback(int handle, unsigned hints, void* start, size_t size)
{
char* buf = start;
size /= 2;
printf("SHRINK! %u\n", hints);
memmove(buf + size/2, buf, size);
if (core_shrink(handle, buf + size/2, size))
{
return BUFLIB_CB_OK;
}
return BUFLIB_CB_CANNOT_SHRINK;
}
struct buflib_callbacks ops = {
.move_callback = move_callback,
.shrink_callback = shrink_callback,
};
int main(void)
{
UT_core_allocator_init();
int first = core_alloc("first", 10<<10);
int second = core_alloc("second", 10<<10);
int third = core_alloc_ex("third", 10<<10, &ops);
strcpy(core_get_data(third), "third");
core_free(second);
int fourth = core_alloc("fourth", 11<<10);
strcpy(core_get_data(fourth), "fourth");
/* this should cause MOVED! twice */
int fifth = core_alloc("fifth", 17<<10);
if (fifth <= 0) error("fifth failed\n");
strcpy(core_get_data(fifth), "fifth");
core_print_blocks(&print_simple);
int sixth = core_alloc("sixth", 4<<10);
if (sixth <= 0) error("sixth failed\n");
strcpy(core_get_data(sixth), "sixth");
core_print_blocks(&print_simple);
int ret = strcmp(core_get_data(third), "third")
|| strcmp(core_get_data(fourth), "fourth")
|| strcmp(core_get_data(fifth), "fifth")
|| strcmp(core_get_data(sixth), "sixth");
core_free(first);
core_free(third);
core_free(fourth);
core_free(fifth);
core_free(sixth);
return ret;
}
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