#ifndef UTIL_UTIL_H_
#define UTIL_UTIL_H_

#define _DIV_ROUNDUP(num, div) ((num + div - 1) / div)
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#define LEN(X) (sizeof(X)/sizeof(X[0]))

#define LL_APPEND(head, new) \
  do { \
    if ((head) != NULL) { \
      typeof((head)) __tmp; \
      (new)->next = NULL; \
      __tmp = (head); \
      while (__tmp->next != NULL) { \
        __tmp = __tmp->next; \
      } \
      __tmp->next = (new); \
    } else { \
      (head) = (new); \
    } \
  } while(0)

#define LL_REMOVE(head, ele) \
  do { \
    typeof((head)) __cur = (head); \
    typeof((head)) __prev = NULL; \
    while (__cur != (ele)) { \
      __prev = __cur; \
      __cur = __cur->next; \
    } \
    if (__prev != NULL) { \
      __prev->next = __cur->next; \
    } \
  } while(0)

char *util_get_filename(char *path);

#endif // UTIL_UTIL_H_