103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
//
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// Library: Memory Manage Module v1.10, Copyleft, 2009-02-25
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// Author : Mandingo, mandingo [ at ]yoire.com
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//
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "mmemory.h"
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static memInfo *mInfo;
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void memStringRealloc(memChunk *chunk){
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memCheckState();
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memChunk *temp;
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temp=memString(chunk->address);
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//printf("Reallocating chunk size %d to size %d\n",chunk->size,temp->size);
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memCopy(chunk,temp);
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memFree(temp);
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}
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void memFree(memChunk *chunk){
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memCheckState();
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if(chunk && chunk->address){
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mInfo->allocated-=chunk->size;
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free(chunk->address);
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free(chunk);
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}
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}
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void memInit(){
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mInfo=(memInfo*)malloc(sizeof(memInfo));
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memset(mInfo,0,sizeof(memInfo));
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mInfo->state=MEM_STATE_OK;
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mInfo->allocated+=sizeof(memInfo);
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}
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void memCheckState(){
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if(mInfo==NULL) memInit();
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if(mInfo->state!=MEM_STATE_OK){
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fprintf(stderr,"\rMMemmory not initialized :p\n");
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exit(0);
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}
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}
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memInfo *memInformation(){
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memCheckState();
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return mInfo;
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}
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long memAllocated(){
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memCheckState();
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return mInfo->allocated;
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}
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memChunk *memReserve(long size){
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static memChunk *buffer;
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memCheckState();
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buffer=(memChunk*)malloc(sizeof(memChunk));
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if((buffer->address=(char*)malloc(size))==NULL){
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perror("memReserve");
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exit(0);
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}
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//printf("- reservando %d bytes\n",size);
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buffer->size=size;
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memset(buffer->address,0,buffer->size);
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mInfo->allocated+=buffer->size;
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return buffer;
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}
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memChunk *memStringReserve(char *string,long nbytes){
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static memChunk *buffer;
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buffer=memReserve(nbytes);
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memCopy(buffer,memString(string));
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return buffer;
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}
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memChunk *memString(char *string){
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static memChunk *buffer;
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memCheckState();
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buffer=memReserve(strlen(string)+1);
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memcpy(buffer->address,string,strlen(string));
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return buffer;
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}
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void memCopy(memChunk *dest,memChunk *source){
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long nbytes;
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memCheckState();
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if ((!source->address) || (!dest->address)) return;
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nbytes=dest->size > source->size ? source->size : dest->size;
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#if DEBUG3
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printf("Copying %d bytes to dest (size %d)\n",nbytes,dest->address,dest->size);
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#endif
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memcpy(dest->address,source->address,nbytes);
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}
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void memStrCat(memChunk *dest,char *string){
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memChunk result,*temp;
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temp = memReserve(dest->size+strlen(string)+1);
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result.address = dest->address+strlen(dest->address);
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result.size = dest->size-strlen(dest->address)+1;
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memCopy(temp,memString(string));
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memCopy(&result,temp);
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memFree(temp);
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}
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