memory검사

#include <stdio.h>
#include <malloc.h>


int main(int argc, char *argv[])
{
        struct mallinfo mem_info;
        char *temp;
        int i;

        if ( argc != 2 )
                return 0;

        temp = (char*)malloc(atoi(argv[1]));
        memset(temp, 0, atoi(argv[1]));
        mem_info = mallinfo();


        printf("(%d) This is the total size of memory allocated with sbrk by malloc, in bytes.\n", mem_info.arena);
        printf("(%d) This is the number of chunks not in use.\n", mem_info.ordblks);
        printf("(%d) This field is unused.\n", mem_info.smblks);
        printf("(%d) This is the total number of chunks allocated with mmap.\n", mem_info.hblks);
        printf("(%d) This is the total size of memory allocated with mmap, in bytes.\n", mem_info.hblkhd);
        printf("(%d) This field is unused.\n", mem_info.usmblks);
        printf("(%d) This field is unused.\n", mem_info.fsmblks);
        printf("(%d) This is the total size of memory occupied by chunks handed out by malloc.\n", mem_info.uordblks);
        printf("(%d) This is the total size of memory occupied by free (not in use) chunks.\n", mem_info.fordblks);
        printf("(%d) This is the size of the top-most releasable chunk that normally borders the end of the heap.\n", mem_info.keepcost);

        return 0;
}

(5828) This is the total size of memory allocated with sbrk by malloc, in bytes.
(1) This is the number of chunks not in use.
(0) This field is unused.
(0) This is the total number of chunks allocated with mmap.
(0) This is the total size of memory allocated with mmap, in bytes.
(0) This field is unused.
(0) This field is unused.
(1036) This is the total size of memory occupied by chunks handed out by malloc.
(4792) This is the total size of memory occupied by free (not in use) chunks.
(4792) This is the size of the top-most releasable chunk that normally borders the end of the heap.

현재까지 사용된 메모리에 대한 정보를 보여주는 함수 입니다.

ps. man 으로는 안찾아 지네요 ^^;

root@testbed:/home/c/poc# gcc -o mem mem.c
root@testbed:/home/c/poc# ./mem
root@testbed:/home/c/poc#

데비안을 쓰는데요 2.2.x 커널..

작동을 안하네요.. 프린터에프가 있는데 =.= 아무런응답이 없음;;

=.= fflush(stdout); 넣어봐도 마찬가지거든요 =.=