mirror of https://gitlab.com/rnger/amath
208 lines
5.0 KiB
C
208 lines
5.0 KiB
C
/*
|
|
* Copyright (c) 2015 Carsten Larsen
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#include "mem.h"
|
|
#include "clib.h"
|
|
|
|
#ifdef AMIGA
|
|
#include <stddef.h>
|
|
#include <exec/types.h>
|
|
#include <exec/memory.h>
|
|
#include <exec/semaphores.h>
|
|
#include <clib/exec_protos.h>
|
|
#define ALLOC_MEM(x) AllocVec(x, MEMF_ANY | MEMF_CLEAR)
|
|
#define FREE_MEM(x) FreeVec(x)
|
|
#define Debug(x,y,z,w)
|
|
#else
|
|
#include <stdio.h>
|
|
#define ALLOC_MEM(x) calloc(1L,x)
|
|
#define FREE_MEM(x) free(x)
|
|
#define Debug(x,y,z,w)
|
|
#endif
|
|
|
|
struct MemoryBlock
|
|
{
|
|
struct MemoryBlock *next;
|
|
size_t size;
|
|
void *address;
|
|
};
|
|
|
|
struct MemoryList
|
|
{
|
|
struct MemoryBlock *first;
|
|
struct MemoryBlock *last;
|
|
long peak;
|
|
long size;
|
|
long count;
|
|
};
|
|
|
|
struct MemoryList *list = NULL;
|
|
|
|
void alloc_error(char*, size_t);
|
|
void dealloc_error(char*, void*);
|
|
|
|
void* AllocMemSafe(size_t size)
|
|
{
|
|
struct MemoryBlock *newblock;
|
|
size_t allocsize;
|
|
|
|
if (list == NULL) {
|
|
list = (struct MemoryList*)ALLOC_MEM(sizeof(struct MemoryList));
|
|
if (!list) {
|
|
alloc_error("list", sizeof(struct MemoryList));
|
|
return 0;
|
|
}
|
|
|
|
list->first = NULL;
|
|
list->last = NULL;
|
|
list->peak = 0;
|
|
list->size = 0;
|
|
list->count = 0;
|
|
}
|
|
|
|
// Align to bytes of 4
|
|
allocsize = (size + 3) & ~0x03;
|
|
|
|
newblock = (struct MemoryBlock*)ALLOC_MEM(sizeof(struct MemoryBlock));
|
|
if (!newblock) {
|
|
alloc_error("block", sizeof(struct MemoryBlock));
|
|
return 0;
|
|
}
|
|
|
|
newblock->address = (struct MemoryBlock*)ALLOC_MEM(allocsize);
|
|
if (!newblock->address) {
|
|
FREE_MEM(newblock);
|
|
alloc_error("memory", allocsize);
|
|
return 0;
|
|
}
|
|
|
|
newblock->size = allocsize;
|
|
newblock->next = NULL;
|
|
|
|
if(list->first == NULL) {
|
|
list->first = newblock;
|
|
list->last = newblock;
|
|
} else {
|
|
list->last->next = newblock;
|
|
list->last = newblock;
|
|
}
|
|
|
|
list->size += allocsize;
|
|
list->count++;
|
|
|
|
if (list->size > list->peak) {
|
|
list->peak = list->size;
|
|
}
|
|
|
|
// DEBUG code
|
|
// Debug(NULL, "Mememory allocated at address (%x)\n", newblock->address);
|
|
|
|
return newblock->address;
|
|
}
|
|
|
|
void FreeMemSafe(void* block)
|
|
{
|
|
struct MemoryBlock *current, *last;
|
|
|
|
if (list == NULL || block == NULL) {
|
|
dealloc_error("list", 0);
|
|
return;
|
|
}
|
|
|
|
if (block == NULL) {
|
|
dealloc_error("memory", 0);
|
|
return;
|
|
}
|
|
|
|
last = NULL;
|
|
current = list->first;
|
|
while (current != NULL && current->address != block) {
|
|
last = current;
|
|
current = current->next;
|
|
}
|
|
|
|
if (current == NULL) {
|
|
dealloc_error("address not found", block);
|
|
return;
|
|
}
|
|
|
|
list->size -= current->size;
|
|
list->count--;
|
|
|
|
if (list->first == current) {
|
|
list->first = NULL;
|
|
list->last = NULL;
|
|
} else if (list->last == current) {
|
|
last->next = current->next;
|
|
list->last = last;
|
|
} else {
|
|
last->next = current->next;
|
|
}
|
|
|
|
FREE_MEM(current->address);
|
|
FREE_MEM(current);
|
|
|
|
// DEBUG code
|
|
// Debug(NULL, "Mememory deallocated at address (%x)\n", block);
|
|
}
|
|
|
|
void FreeAllSafe()
|
|
{
|
|
struct MemoryBlock *current, *next;
|
|
|
|
if (list == NULL) {
|
|
return;
|
|
}
|
|
|
|
current = list->first;
|
|
while (current != NULL) {
|
|
next = current->next;
|
|
FREE_MEM(current->address);
|
|
FREE_MEM(current);
|
|
current = next;
|
|
}
|
|
|
|
FREE_MEM(list);
|
|
list = NULL;
|
|
}
|
|
|
|
void MemUsage(long *blocks, long *size, long *peak)
|
|
{
|
|
*blocks = list->count;
|
|
*size = list->size;
|
|
*peak = list->peak;;
|
|
}
|
|
|
|
void alloc_error(char *descr, size_t size)
|
|
{
|
|
Debug(NULL, "Mememory allocation error (%s) with size (%d)\n", descr, size);
|
|
}
|
|
|
|
void dealloc_error(char *descr, void *p)
|
|
{
|
|
Debug(NULL, "Mememory deallocation error (%s) address (%x)\n", descr, p);
|
|
}
|