logging.h

   1 #ifndef MODINITTOOLS_LOGGING_H
   2 #define MODINITTOOLS_LOGGING_H
   3
   4 /* Do we use syslog for messages or stderr? */
   5 extern int logging;
   6
   7 /* Do we want to silently drop all warnings? */
   8 extern int quiet;
   9
  10 /* Number of times warn() has been called */
  11 extern int warned;
  12
  13 /* Do we want informative messages as well as errors? */
  14 extern int verbose;
  15
  16 extern void fatal(const char *fmt, ...);
  17 extern void error(const char *fmt, ...);
  18 extern void warn(const char *fmt, ...);
  19 extern void info(const char *fmt, ...);
  20
  21 static inline void grammar(const char *cmd,
  22                            const char *filename, unsigned int line)
  23 {
  24         warn("%s line %u: ignoring bad line starting with '%s'\n",
  25              filename, line, cmd);
  26 }
  27
  28 #define NOFAIL(ptr)  do_nofail((ptr), __FILE__, __LINE__, #ptr)
  29
  30 #define nofail_asprintf(ptr, ...) \
  31         { if (asprintf((ptr), __VA_ARGS__) < 0) do_nofail(NULL, __FILE__, __LINE__, #ptr); }
  32
  33 static inline void *do_nofail(void *ptr, const char *file, int line, const char *expr)
  34 {
  35         if (!ptr) {
  36                 fatal("Memory allocation failure %s line %d: %s.\n",
  37                       file, line, expr);
  38         }
  39         return ptr;
  40 }
  41
  42 #endif /* MODINITTOOLS_LOGGING_H */