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#include "memblock.h"
#include <bfc/bfc_assert.h>
#ifdef _DEBUG
int memblocks_totalsize=0;
#endif
VoidMemBlock::VoidMemBlock(int _size, const void *data) {
mem = NULL;
size = 0;
setSize(_size);
if (data != NULL && size > 0) MEMCPY(mem, data, size);
}
VoidMemBlock::~VoidMemBlock() {
#ifdef _DEBUG
memblocks_totalsize -= size;
#endif
FREE(mem);
}
void *VoidMemBlock::setSize(int newsize) {
#ifdef _DEBUG
memblocks_totalsize -= size;
#endif
ASSERT(newsize >= 0);
if (newsize < 0) newsize = 0;
if (newsize == 0) {
FREE(mem);
mem = NULL;
} else if (size != newsize) {
mem = REALLOC(mem, newsize);
}
size = newsize;
#ifdef _DEBUG
memblocks_totalsize += size;
#endif
return getMemory();
}
void *VoidMemBlock::setMinimumSize(int newminsize, int increment) {
if (newminsize > size) setSize(newminsize+increment);
return getMemory();
}
void VoidMemBlock::setMemory(const void *data, int datalen, int offsetby) {
if (datalen <= 0) return;
ASSERT(mem != NULL);
ASSERT(offsetby >= 0);
char *ptr = reinterpret_cast<char *>(mem);
ASSERT(ptr + offsetby + datalen <= ptr + size);
MEMCPY(ptr + offsetby, data, datalen);
}
int VoidMemBlock::getSize() const {
return size;
}
int VoidMemBlock::isMine(void *ptr) {
return (ptr >= mem && ptr < (char*)mem + size);
}
void VoidMemBlock::zeroMemory() {
if (mem == NULL || size < 1) return;
MEMZERO(mem, size);
}
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