share/usterr.h

   1 #ifndef USTERR_H
   2 #define USTERR_H
   3
   4 #include <string.h>
   5
   6 #ifndef UST_COMPONENT
   7 //#error UST_COMPONENT is undefined
   8 #define UST_COMPONENT libust
   9 #endif
  10
  11 /* To stringify the expansion of a define */
  12 #define XSTR(d) STR(d)
  13 #define STR(s) #s
  14
  15 #define UST_STR_COMPONENT XSTR(UST_COMPONENT)
  16
  17 #define DEBUG
  18 #ifdef DEBUG
  19 # define DBG(fmt, args...) do { fprintf(stderr, UST_STR_COMPONENT ": " fmt " (" __FILE__ ":" XSTR(__LINE__) ")\n", ## args); fflush(stderr); } while(0)
  20 #else
  21 # define DBG(fmt, args...) do {} while(0)
  22 #endif
  23 #define WARN(fmt, args...) fprintf(stderr, UST_STR_COMPONENT ": Warning: " fmt "\n", ## args); fflush(stderr)
  24 #define ERR(fmt, args...) fprintf(stderr, UST_STR_COMPONENT ": Error: " fmt "\n", ## args); fflush(stderr)
  25 #define BUG(fmt, args...) fprintf(stderr, UST_STR_COMPONENT ": BUG: " fmt "\n", ## args); fflush(stderr)
  26
  27 #if (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE)
  28 #define PERROR(call, args...)\
  29         do { \
  30                 char buf[200] = "Error in strerror_r()"; \
  31                 strerror_r(errno, buf, sizeof(buf)); \
  32                 fprintf(stderr, UST_STR_COMPONENT ": Error: " call ": %s\n", ## args, buf); fflush(stderr); \
  33         } while(0);
  34 #else
  35 #define PERROR(call, args...)\
  36         do { \
  37                 char *buf; \
  38                 char tmp[200]; \
  39                 buf = strerror_r(errno, tmp, sizeof(tmp)); \
  40                 fprintf(stderr, UST_STR_COMPONENT ": Error: " call ": %s\n", ## args, buf); fflush(stderr); \
  41         } while(0);
  42 #endif
  43
  44 #define BUG_ON(condition) do { if (unlikely(condition)) ERR("condition not respected (BUG)"); } while(0)
  45 #define WARN_ON(condition) do { if (unlikely(condition)) WARN("condition not respected on line %s:%d", __FILE__, __LINE__); } while(0)
  46
  47 #endif /* USTERR_H */