include/util.h

   1 /*
   2  * Copyright (C) 1996-2022 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #ifndef SQUID_UTIL_H
  10 #define SQUID_UTIL_H
  11
  12 #if HAVE_ARPA_INET_H
  13 #include <arpa/inet.h>
  14 #endif
  15
  16 SQUIDCEXTERN void Tolower(char *);
  17
  18 SQUIDCEXTERN double xpercent(double part, double whole);
  19 SQUIDCEXTERN int xpercentInt(double part, double whole);
  20 SQUIDCEXTERN double xdiv(double nom, double denom);
  21
  22 SQUIDCEXTERN const char *xitoa(int num);
  23 SQUIDCEXTERN const char *xint64toa(int64_t num);
  24
  25 typedef struct {
  26     size_t count;
  27     size_t bytes;
  28     size_t gb;
  29 } gb_t;
  30
  31 /* gb_type operations */
  32 #define gb_flush_limit (0x3FFFFFFF)
  33 #define gb_inc(gb, delta) { if ((gb)->bytes > gb_flush_limit || delta > gb_flush_limit) gb_flush(gb); (gb)->bytes += delta; (gb)->count++; }
  34 #define gb_incb(gb, delta) { if ((gb)->bytes > gb_flush_limit || delta > gb_flush_limit) gb_flush(gb); (gb)->bytes += delta; }
  35 #define gb_incc(gb, delta) { if ((gb)->bytes > gb_flush_limit || delta > gb_flush_limit) gb_flush(gb); (gb)->count+= delta; }
  36 extern double gb_to_double(const gb_t *);
  37 SQUIDCEXTERN const char *double_to_str(char *buf, int buf_size, double value);
  38 extern const char *gb_to_str(const gb_t *);
  39 extern void gb_flush(gb_t *);  /* internal, do not use this */
  40
  41 SQUIDCEXTERN unsigned int RoundTo(const unsigned int num, const unsigned int what);
  42
  43 #endif /* SQUID_UTIL_H */
  44