132 lines
3.7 KiB
C
132 lines
3.7 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 Thomas Martitz
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <stdio.h>
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#include "core_alloc.h"
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#include "util.h"
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/*
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* Expected output (64bit)
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--------------------
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after freeing first: available: 10040
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after freeing forth: available: 10040
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buflib_compact(): Compacting!
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move_block(): moving "third"(id=3) by -3210(-25680)
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Move! third, 0x608758, 0x602308, 25680
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Cannot move now for handle 3
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fifth failed. Retrying...
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buflib_compact(): Compacting!
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move_block(): moving "third"(id=3) by -3210(-25680)
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Move! third, 0x608758, 0x602308, 25680
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fifth handle: 1
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fifth(1): 0x608730
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0x608758
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21544
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second(2): 0x607308
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0x607330
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5160
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third(3): 0x6022e0
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0x602308
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15400
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sixth(4): 0x605f08
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0x605f30
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2088
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seventh(5): 0x606730
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0x606758
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552
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0x6022e0: val: 1925 (third)
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0x605f08: val: 261 (sixth)
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0x606730: val: 69 (seventh)
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0x606958: val: -310 (<unallocated>)
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0x607308: val: 645 (second)
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0x608730: val: 2693 (fifth)
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--------------------
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*/
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static int move_size, retry;
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int move_callback(int handle, void* old, void* new)
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{
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move_size = (char*)old-(char*)new;
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printf("Move! %s, %p, %p, %d\n", core_get_name(handle), old, new,
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move_size);
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if (!retry)
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{
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retry = 1;
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printf("Cannot move now for handle %d\n", handle);
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return BUFLIB_CB_CANNOT_MOVE;
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}
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return BUFLIB_CB_OK;
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}
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struct buflib_callbacks ops = {
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.move_callback = move_callback,
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.shrink_callback = NULL,
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};
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static struct buflib_callbacks ops_no_move = {
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.move_callback = NULL,
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.shrink_callback = NULL,
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};
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int main(void)
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{
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UT_core_allocator_init();
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int first = core_alloc("first", 20<<10);
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int second= core_alloc_ex("second", 5<<10, &ops_no_move);
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int third = core_alloc_ex("third", 15<<10, &ops);
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strcpy(core_get_data(second), "Here's data");
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core_free(first);
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printf("after freeing first: available: %zu\n", core_available());
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/* should not trigger compaction, but replace the just freed one */
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int fourth = core_alloc("forth", 20<<10);
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core_free(fourth);
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printf("after freeing forth: available: %zu\n", core_available());
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/* should trigger compaction since it's a bit bigger than the just freed one */
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int fifth = core_alloc("fifth", 21<<10);
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if (fifth <= 0)
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{
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printf("fifth failed. Retrying...\n");
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fifth = core_alloc("fifth", 21<<10);
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}
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if (fifth <= 0)
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{
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printf("fifth still failed\n");
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}
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printf("fifth handle: %d\n", fifth);
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int sixth = core_alloc("sixth", 2<<10);
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int seventh = core_alloc("seventh", 512);
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core_print_allocs(&print_simple);
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core_print_blocks(&print_simple);
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int ret = !(!strcmp(core_get_data(second), "Here's data") && move_size >= 20<<10);
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core_free(second);
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core_free(third);
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if (fifth > 0)
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core_free(fifth);
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core_free(sixth);
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core_free(seventh);
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return ret;
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}
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