lib/libevtr/internal.h

   1 #ifndef _EVTR_INTERNAL_H_
   2 #define _EVTR_INTERNAL_H_
   3
   4 #include <sys/queue.h>
   5 #include "evtr.h"
   6
   7 extern unsigned evtr_debug;
   8
   9 #define DEFINE_DEBUG_FLAG(nam, chr)             \
  10         nam = 1 << (chr - 'a')
  11
  12 enum debug_flags {
  13         DEFINE_DEBUG_FLAG(IO, 'i'),
  14         DEFINE_DEBUG_FLAG(DS, 't'),     /* data structures */
  15         DEFINE_DEBUG_FLAG(LEX, 'l'),
  16         DEFINE_DEBUG_FLAG(PARSE, 'p'),
  17         DEFINE_DEBUG_FLAG(MISC, 'm'),
  18 };
  19
  20 #define printd(subsys, ...)                             \
  21         do {                                            \
  22                 if (evtr_debug & (subsys)) {    \
  23                         fprintf(stderr, "%s:", #subsys);        \
  24                         fprintf(stderr, __VA_ARGS__);   \
  25                 }                                       \
  26         } while (0)
  27
  28 #define printw(...)                             \
  29         do {                                    \
  30         fprintf(stderr, "Warning: ");           \
  31         fprintf(stderr, __VA_ARGS__);           \
  32         } while(0)
  33
  34
  35 struct ktrfmt_parse_ctx {
  36         struct symtab *symtab;
  37         struct evtr_variable *var;
  38         struct evtr_variable_value *val;
  39         evtr_event_t ev;
  40         char *errbuf;
  41         size_t errbufsz;
  42         int err;
  43 };
  44
  45 TAILQ_HEAD(evtr_value_list, evtr_variable_value);
  46 typedef struct evtr_value_list *evtr_value_list_t;
  47
  48 struct symtab *symtab_new(void);
  49 struct evtr_variable * symtab_find(const struct symtab *, const char *);
  50 int symtab_insert(struct symtab *, const char *, struct evtr_variable *);
  51 void symtab_destroy(struct symtab *);
  52
  53
  54 int parse_string(evtr_event_t, struct symtab *, const char *, char *, size_t);
  55 int parse_var(const char *, struct symtab *, struct evtr_variable **,
  56               char *, size_t);
  57
  58 struct hashtab;
  59 struct hashentry;
  60 struct hashtab * hash_new(void);
  61 int hash_find(const struct hashtab *, uintptr_t, uintptr_t *);
  62 struct hashentry * hash_insert(struct hashtab *, uintptr_t, uintptr_t);
  63
  64 void evtr_variable_value_list_destroy(evtr_value_list_t);
  65
  66
  67 #endif /* _EVTR_INTERNAL_H_ */