7d5f133007
Interfaces with core_alloc_* instead of buflib directly. Provide UT_core_allocator_init() with a fixed buffer size for predictable results. Change-Id: I26a7b3101f7782063547940bded52d8202638394
108 lines
3.3 KiB
C
108 lines
3.3 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 <stdlib.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 (64-bit):
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-------------------
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-------------------
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*/
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#define error(...) do { printf(__VA_ARGS__); exit(1); } while(0)
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static int move_callback(int handle, void* old, void* new)
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{
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printf("MOVED!\n");
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return BUFLIB_CB_OK;
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}
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static int shrink_callback(int handle, unsigned hints, void* start, size_t size)
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{
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char* buf = start;
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size_t wanted = hints & BUFLIB_SHRINK_SIZE_MASK;
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if (handle == 4)
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{
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buf+=1, size-=1;
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memmove(buf, buf-1, (size < 20) ? size : 20);
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core_shrink(handle, buf, size);
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return BUFLIB_CB_OK;
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}
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return BUFLIB_CB_CANNOT_SHRINK;
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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 = shrink_callback,
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};
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struct buflib_callbacks ops2 = {
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.move_callback = NULL,
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.shrink_callback = shrink_callback,
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};
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int main(void)
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{
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size_t size2, size4;
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UT_core_allocator_init();
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printf("available: %zu\n", core_available());
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int first = core_alloc("first, fixed", 4<<10);
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if (first <= 0) error("first failed\n");
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printf("available: %zu\n", core_available());
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int second = core_alloc_maximum("second, var", &size2, &ops);
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if (second <= 0) error("second failed\n");
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printf("second size: %zu\n", size2);
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strcpy(core_get_data(second), "begin");
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strcpy(core_get_data(second)+124, "end");
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printf("%s\n", core_get_name(second));
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if (!core_shrink(second, core_get_data(second), 128))
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error("shrink second failed\n");
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int third = core_alloc("third, fixed", 20<<10);
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if (third <= 0) error("third failed");
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strcpy(core_get_data(third), "third");
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printf("available: %zu\n", core_available());
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int fourth = core_alloc_maximum("fourth", &size4, &ops2);
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if (fourth <= 0) error("fourth failed\n");
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core_print_blocks(&print_simple);
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if (!core_shrink(fourth, core_get_data(fourth)+(5<<10), size4-(5<<10)))
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{
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error("shrink fourth failed\n");
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}
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sprintf(core_get_data(fourth), "fourth size: %zu", size4);
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core_print_blocks(&print_simple);
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int fifth = core_alloc("fifth, fixed", 6<<10);
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if (fifth <= 0) error("fifth failed\n");
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printf("%s\n", core_get_data(fourth));
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core_print_blocks(&print_simple);
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core_print_allocs(&print_simple);
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return 0;
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}
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