usr/src/lib/libast/i386/include/ast/stack.h

   1
   2 /* : : generated by proto : : */
   3 /***********************************************************************
   4 *                                                                      *
   5 *               This software is part of the ast package               *
   6 *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
   7 *                      and is licensed under the                       *
   8 *                  Common Public License, Version 1.0                  *
   9 *                    by AT&T Intellectual Property                     *
  10 *                                                                      *
  11 *                A copy of the License is available at                 *
  12 *            http://www.opensource.org/licenses/cpl1.0.txt             *
  13 *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
  14 *                                                                      *
  15 *              Information and Software Systems Research               *
  16 *                            AT&T Research                             *
  17 *                           Florham Park NJ                            *
  18 *                                                                      *
  19 *                 Glenn Fowler <gsf@research.att.com>                  *
  20 *                  David Korn <dgk@research.att.com>                   *
  21 *                   Phong Vo <kpv@research.att.com>                    *
  22 *                                                                      *
  23 ***********************************************************************/
  24
  25 /*
  26  * Glenn Fowler
  27  * AT&T Research
  28  *
  29  * homogenous stack routine definitions
  30  */
  31
  32 #ifndef _STACK_H
  33 #if !defined(__PROTO__)
  34 #include <prototyped.h>
  35 #endif
  36 #if !defined(__LINKAGE__)
  37 #define __LINKAGE__             /* 2004-08-11 transition */
  38 #endif
  39
  40 #define _STACK_H
  41
  42 typedef struct stacktable* STACK;       /* stack pointer                */
  43 typedef struct stackposition STACKPOS;  /* stack position               */
  44
  45 struct stackblock                       /* stack block cell             */
  46 {
  47         __V_**            stack;        /* actual stack                 */
  48         struct stackblock* prev;        /* previous block in list       */
  49         struct stackblock* next;        /* next block in list           */
  50 };
  51
  52 struct stackposition                    /* stack position               */
  53 {
  54         struct stackblock* block;       /* current block pointer        */
  55         int             index;          /* index within current block   */
  56 };
  57
  58 struct stacktable                       /* stack information            */
  59 {
  60         struct stackblock* blocks;      /* stack table blocks           */
  61         __V_*           error;          /* error return value           */
  62         int             size;           /* size of each block           */
  63         STACKPOS        position;       /* current stack position       */
  64 };
  65
  66 /*
  67  * map old names to new
  68  */
  69
  70 #define mkstack         stackalloc
  71 #define rmstack         stackfree
  72 #define clrstack        stackclear
  73 #define getstack        stackget
  74 #define pushstack       stackpush
  75 #define popstack        stackpop
  76 #define posstack        stacktell
  77
  78 #if _BLD_ast && defined(__EXPORT__)
  79 #undef __MANGLE__
  80 #define __MANGLE__ __LINKAGE__          __EXPORT__
  81 #endif
  82
  83 extern __MANGLE__ STACK         stackalloc __PROTO__((int, __V_*));
  84 extern __MANGLE__ void          stackfree __PROTO__((STACK));
  85 extern __MANGLE__ void          stackclear __PROTO__((STACK));
  86 extern __MANGLE__ __V_*         stackget __PROTO__((STACK));
  87 extern __MANGLE__ int           stackpush __PROTO__((STACK, __V_*));
  88 extern __MANGLE__ int           stackpop __PROTO__((STACK));
  89 extern __MANGLE__ void          stacktell __PROTO__((STACK, int, STACKPOS*));
  90
  91 #undef __MANGLE__
  92 #define __MANGLE__ __LINKAGE__
  93
  94 #endif