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/*******************************************************************************
* Copyright (c) 2012 protos software gmbh (http://www.protos.de).
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* CONTRIBUTORS:
* Henrik Rentz-Reichert (initial contribution)
*
*******************************************************************************/
#include "TestEtMemory.h"
#include <stddef.h>
#include <string.h>
#include "etUnit/etUnit.h"
#include "base/etMemory_FixedSize.h"
#include "base/etMemory_FreeList.h"
#define KBYTE 1024
#define BUF_SIZE (256*KBYTE)
#define BUF_SIZE_SMALL (2*KBYTE)
#define BLOCK_SIZE 128
#define TEST_BLOCKS 1024
#define TEST_BLOCK_SIZE 64
#define NOBJ 32
#define NSLOTS 8
#define NSIZES 7
#define SIZE0 64
#define SIZE1 16
#define SIZE2 32
#define SIZE3 48
#define SIZE4 (16*8)
#define SIZE5 112
#define SIZE6 96
static void TestEtMemory_testFixedSize(etInt16 id) {
etUInt8 buffer[BUF_SIZE];
etUInt8* objects[TEST_BLOCKS];
int i;
etMemory* mem = etMemory_FixedSize_init(buffer, BUF_SIZE, BLOCK_SIZE);
EXPECT_TRUE(id, "mem!=NULL", mem!=NULL);
for (i=0; i<TEST_BLOCKS; ++i) {
objects[i] = mem->alloc(mem, TEST_BLOCK_SIZE);
if (objects[i]==NULL)
EXPECT_TRUE(id, "objects[i]==NULL", ET_FALSE);
memset(objects[i], i%4, TEST_BLOCK_SIZE);
}
for (i=0; i<TEST_BLOCKS/2; ++i) {
mem->free(mem, objects[i*2], TEST_BLOCK_SIZE);
}
for (i=0; i<TEST_BLOCKS/2; ++i) {
objects[i*2] = mem->alloc(mem, TEST_BLOCK_SIZE);
if (objects[i*2]==NULL)
EXPECT_TRUE(id, "objects[i*2]==NULL", ET_FALSE);
}
}
static int local_dump_statistics_line(etMemory* mem, int slot) {
int nobj = etMemory_FreeList_nObjects(mem, slot);
int size = etMemory_FreeList_sizeObjects(mem, slot);
int subtotal = nobj*size;
printf(" slot %3d with %4d objects of size %4d totaling to %8d\n", slot, nobj, size, subtotal);
return subtotal;
}
static void local_dump_statistics(etMemory* mem, etUInt16 nSlots) {
int slot;
int total = 0;
printf("memory statistics of free list memory management at %p\n", mem);
for (slot=0; slot<nSlots; ++slot) {
total += local_dump_statistics_line(mem, slot);
}
printf(" total %12d\n", total);
}
static etUInt32 local_alloc(etInt16 id, etMemory* mem, etUInt8* objects[NSIZES][NOBJ], etUInt8 sizes[NSIZES]) {
int i, kind;
etUInt32 total = 0;
for (kind=0; kind<NSIZES; ++kind) {
total += sizes[kind] * NOBJ;
for (i=0; i<NOBJ; ++i) {
objects[kind][i] = mem->alloc(mem, sizes[kind]);
if (objects[kind][i]==NULL)
EXPECT_TRUE(id, "objects[kind][i]==NULL", ET_FALSE);
}
}
return total;
}
static void local_free(etInt16 id, etMemory* mem, etUInt8* objects[NSIZES][NOBJ], etUInt8 sizes[NSIZES]) {
int i, kind;
for (kind=0; kind<NSIZES; ++kind) {
for (i=0; i<NOBJ; ++i) {
mem->free(mem, objects[kind][i], sizes[kind]);
}
}
}
static void TestEtMemory_testFreeList(etInt16 id) {
static etUInt8 buffer[BUF_SIZE];
static etUInt8 sizes[NSIZES] = { SIZE0, SIZE1, SIZE2, SIZE3, SIZE4, SIZE5, SIZE6 };
etUInt8* objects[NSIZES][NOBJ];
etMemory* mem = etMemory_FreeList_init(buffer, BUF_SIZE, NSLOTS);
etUInt32 free = etMemory_FreeList_freeHeapMem(mem);
etUInt32 diff, total;
printf("initial free heap is %ld\n", free);
EXPECT_TRUE(id, "mem!=NULL", mem!=NULL);
total = local_alloc(id, mem, objects, sizes);
printf("after alloc\n");
local_dump_statistics(mem, NSLOTS);
local_free(id, mem, objects, sizes);
printf("after free\n");
local_dump_statistics(mem, NSLOTS);
diff = free;
free = etMemory_FreeList_freeHeapMem(mem);
diff -= free;
printf("free heap is %ld\n", free);
EXPECT_EQUAL_UINT32(id, "allocated total", total, diff);
EXPECT_EQUAL_UINT16(id, "free slots", NSLOTS-NSIZES, etMemory_FreeList_freeSlots(mem));
EXPECT_EQUAL_UINT16(id, "slot 0 size", SIZE0, etMemory_FreeList_sizeObjects(mem, 0));
EXPECT_EQUAL_UINT16(id, "slot 0 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 0));
EXPECT_EQUAL_UINT16(id, "slot 2 size", SIZE4, etMemory_FreeList_sizeObjects(mem, 1));
EXPECT_EQUAL_UINT16(id, "slot 2 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 1));
EXPECT_EQUAL_UINT16(id, "slot 4 size", SIZE1, etMemory_FreeList_sizeObjects(mem, 2));
EXPECT_EQUAL_UINT16(id, "slot 4 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 2));
EXPECT_EQUAL_UINT16(id, "slot 1 size", SIZE2, etMemory_FreeList_sizeObjects(mem, 4));
EXPECT_EQUAL_UINT16(id, "slot 1 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 4));
EXPECT_EQUAL_UINT16(id, "slot 3 size", SIZE6, etMemory_FreeList_sizeObjects(mem, 5));
EXPECT_EQUAL_UINT16(id, "slot 3 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 5));
EXPECT_EQUAL_UINT16(id, "slot 5 size", SIZE3, etMemory_FreeList_sizeObjects(mem, 6));
EXPECT_EQUAL_UINT16(id, "slot 5 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 6));
EXPECT_EQUAL_UINT16(id, "slot 6 size", SIZE5, etMemory_FreeList_sizeObjects(mem, 7));
EXPECT_EQUAL_UINT16(id, "slot 6 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 7));
local_alloc(id, mem, objects, sizes);
local_free(id, mem, objects, sizes);
EXPECT_EQUAL_UINT32(id, "free unchanged", free, etMemory_FreeList_freeHeapMem(mem));
EXPECT_EQUAL_UINT16(id, "free slots", NSLOTS-NSIZES, etMemory_FreeList_freeSlots(mem));
EXPECT_EQUAL_UINT16(id, "slot 0 size", SIZE0, etMemory_FreeList_sizeObjects(mem, 0));
EXPECT_EQUAL_UINT16(id, "slot 0 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 0));
EXPECT_EQUAL_UINT16(id, "slot 2 size", SIZE4, etMemory_FreeList_sizeObjects(mem, 1));
EXPECT_EQUAL_UINT16(id, "slot 2 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 1));
EXPECT_EQUAL_UINT16(id, "slot 4 size", SIZE1, etMemory_FreeList_sizeObjects(mem, 2));
EXPECT_EQUAL_UINT16(id, "slot 4 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 2));
EXPECT_EQUAL_UINT16(id, "slot 1 size", SIZE2, etMemory_FreeList_sizeObjects(mem, 4));
EXPECT_EQUAL_UINT16(id, "slot 1 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 4));
EXPECT_EQUAL_UINT16(id, "slot 3 size", SIZE6, etMemory_FreeList_sizeObjects(mem, 5));
EXPECT_EQUAL_UINT16(id, "slot 3 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 5));
EXPECT_EQUAL_UINT16(id, "slot 5 size", SIZE3, etMemory_FreeList_sizeObjects(mem, 6));
EXPECT_EQUAL_UINT16(id, "slot 5 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 6));
EXPECT_EQUAL_UINT16(id, "slot 6 size", SIZE5, etMemory_FreeList_sizeObjects(mem, 7));
EXPECT_EQUAL_UINT16(id, "slot 6 nobj", NOBJ, etMemory_FreeList_nObjects(mem, 7));
}
static void TestEtMemory_testFreeListOverflow(etInt16 id) {
static etUInt8 buffer[BUF_SIZE_SMALL];
etMemory* mem = etMemory_FreeList_init(buffer, BUF_SIZE_SMALL, NSLOTS);
void* obj;
EXPECT_TRUE(id, "mem!=NULL", mem!=NULL);
obj = mem->alloc(mem, BUF_SIZE_SMALL+1);
EXPECT_TRUE(id, "insufficient space, expect NULL", NULL==obj);
}
void TestEtMemory_runSuite(void){
etUnit_openTestSuite("TestMemory");
ADD_TESTCASE(TestEtMemory_testFixedSize);
ADD_TESTCASE(TestEtMemory_testFreeList);
ADD_TESTCASE(TestEtMemory_testFreeListOverflow);
etUnit_closeTestSuite();
}
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