include/utils.h

   1 #pragma once
   2
   3 #include <types.h>
   4
   5 #define MB (1024 * 1024UL)
   6 #define GB (1024 * MB)
   7
   8 void * alloc_shared(unsigned int size);
   9 void * zmalloc(size_t size);
  10
  11 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
  12
  13 #define max(x, y) ((x) >= (y) ? (x) : (y))
  14 #define min(x, y) ((x) <= (y) ? (x) : (y))
  15
  16 #ifndef offsetof
  17 # define offsetof(type, member) ((size_t) &((type *) 0)->member)
  18 #endif
  19
  20 #define MAX_ERRNO 4095
  21 #define IS_ERR_VALUE(x) ((x) >= (unsigned long)-MAX_ERRNO)
  22 static inline long IS_ERR(unsigned long x)
  23 {
  24         return IS_ERR_VALUE(x);
  25 }
  26
  27 void sizeunit(unsigned long size, char *buf);