88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
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/***************************************************************************
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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 "buflib.h"
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#define BUFLIB_BUFFER_SIZE (12<<10)
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static char buflib_buffer[BUFLIB_BUFFER_SIZE];
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static struct buflib_context ctx;
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#define assert(x) do { if (!(x)) exit(1); } while(0)
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int move_callback(int handle, void* current, void* new)
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{
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(void)handle;(void)current;(void)new;
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printf("Move!\n");
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}
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int shrink_callback(int handle, unsigned hints, void* start, size_t old_size)
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{
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(void)handle;(void)start;(void)old_size;(void)hints;
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printf("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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int main(int argc, char **argv)
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{
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buflib_init(&ctx, buflib_buffer, BUFLIB_BUFFER_SIZE);
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int id = buflib_alloc_ex(&ctx, 512, "foo", &ops);
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int id2 = buflib_alloc_ex(&ctx, 1024, "bar", &ops);
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int id3 = buflib_alloc_ex(&ctx, 8<<10, "8K", &ops);
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assert(id > 0 && id2 > 0 && id3 > 0);
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#define STR "<TEST>"
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strncpy(buflib_get_data(&ctx, id3), STR, sizeof STR);
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if (id > 0)
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{
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// buflib_print_allocs(&ctx);
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buflib_free(&ctx, id);
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// buflib_print_allocs(&ctx);
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buflib_free(&ctx, id2);
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// buflib_print_allocs(&ctx);
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id = buflib_alloc_ex(&ctx, 3<<10, "should compact", &ops);
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if (id <= 0) printf("compacting alloc failed\n");
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// buflib_print_allocs(&ctx);
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printf("id I: %p\n", buflib_get_data(&ctx, id3));
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id2 = buflib_alloc_ex(&ctx, 3<<10, "should fail", &ops);
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printf("id II: %p\n", buflib_get_data(&ctx, id3));
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if (id2 <= 0) printf("failing alloc failed\n");
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else buflib_free(&ctx, id2);
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if (id > 0)
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buflib_free(&ctx, id);
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printf("Check string: \"%s\"\n", buflib_get_data(&ctx, id3));
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// buflib_print_allocs(&ctx);
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}
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return 0;
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}
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