You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
11 years ago
|
/*
|
||
|
|
* simple_allocator.c
|
||
|
|
*
|
||
|
|
* Copyright 2013 Michael Zillgith
|
||
|
|
*
|
||
|
|
* This file is part of libIEC61850.
|
||
|
|
*
|
||
|
|
* libIEC61850 is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation, either version 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* libIEC61850 is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with libIEC61850. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*
|
||
|
|
* See COPYING file for the complete license text.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#include "simple_allocator.h"
|
||
|
|
|
||
|
|
void
|
||
|
|
MemoryAllocator_init(MemoryAllocator* self, char* memoryBlock, int size)
|
||
|
|
{
|
||
|
|
self->memoryBlock = memoryBlock;
|
||
|
|
self->currentPtr = memoryBlock;
|
||
|
|
self->size = size;
|
||
|
|
}
|
||
|
|
|
||
|
|
char*
|
||
|
|
MemoryAllocator_allocate(MemoryAllocator* self, int size)
|
||
|
|
{
|
||
|
|
if (((self->currentPtr - self->memoryBlock) + size) <= self->size) {
|
||
|
|
char* ptr = self->currentPtr;
|
||
|
|
self->currentPtr += size;
|
||
|
|
return ptr;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
return NULL;
|
||
|
|
}
|