contrib/ntp/include/lib_strbuf.h

   1 /*
   2  * lib_strbuf.h - definitions for routines which use the common string buffers
   3  */
   4 #ifndef LIB_STRBUF_H
   5 #define LIB_STRBUF_H
   6
   7 #include <ntp_types.h>
   8 #include <ntp_malloc.h>                 /* for ZERO() */
   9
  10 /*
  11  * Sizes of things
  12  */
  13 #define LIB_NUMBUF      16
  14 #define LIB_BUFLENGTH   128
  15
  16 typedef char libbufstr[LIB_BUFLENGTH];
  17 extern libbufstr lib_stringbuf[LIB_NUMBUF];
  18 extern int lib_nextbuf;
  19 extern int lib_inited;
  20
  21
  22 /*
  23  * Macro to get a pointer to the next buffer
  24  */
  25 #define LIB_GETBUF(bufp)                                        \
  26         do {                                                    \
  27                 ZERO(lib_stringbuf[lib_nextbuf]);               \
  28                 (bufp) = &lib_stringbuf[lib_nextbuf++][0];      \
  29                 lib_nextbuf %= COUNTOF(lib_stringbuf);          \
  30         } while (FALSE)
  31
  32 #endif  /* LIB_STRBUF_H */