ceph/src/jaegertracing/opentelemetry-cpp/third_party/prometheus-cpp/3rdparty/civetweb/src/third_party/lua-5.3.6/src/lua.h

   1 /*
   2 ** Lua - A Scripting Language
   3 ** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
   4 ** See Copyright Notice at the end of this file
   5 */
   6
   7
   8 #ifndef lua_h
   9 #define lua_h
  10
  11 #include <stdarg.h>
  12 #include <stddef.h>
  13
  14
  15 #include "luaconf.h"
  16
  17
  18 #define LUA_VERSION_MAJOR       "5"
  19 #define LUA_VERSION_MINOR       "3"
  20 #define LUA_VERSION_NUM         503
  21 #define LUA_VERSION_RELEASE     "6"
  22
  23 #define LUA_VERSION     "Lua " LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
  24 #define LUA_RELEASE     LUA_VERSION "." LUA_VERSION_RELEASE
  25 #define LUA_COPYRIGHT   LUA_RELEASE "  Copyright (C) 1994-2020 Lua.org, PUC-Rio"
  26 #define LUA_AUTHORS     "R. Ierusalimschy, L. H. de Figueiredo, W. Celes"
  27
  28
  29 /* mark for precompiled code ('<esc>Lua') */
  30 #define LUA_SIGNATURE   "\x1bLua"
  31
  32 /* option for multiple returns in 'lua_pcall' and 'lua_call' */
  33 #define LUA_MULTRET     (-1)
  34
  35
  36 /*
  37 ** Pseudo-indices
  38 ** (-LUAI_MAXSTACK is the minimum valid index; we keep some free empty
  39 ** space after that to help overflow detection)
  40 */
  41 #define LUA_REGISTRYINDEX       (-LUAI_MAXSTACK - 1000)
  42 #define lua_upvalueindex(i)     (LUA_REGISTRYINDEX - (i))
  43
  44
  45 /* thread status */
  46 #define LUA_OK          0
  47 #define LUA_YIELD       1
  48 #define LUA_ERRRUN      2
  49 #define LUA_ERRSYNTAX   3
  50 #define LUA_ERRMEM      4
  51 #define LUA_ERRGCMM     5
  52 #define LUA_ERRERR      6
  53
  54
  55 typedef struct lua_State lua_State;
  56
  57
  58 /*
  59 ** basic types
  60 */
  61 #define LUA_TNONE               (-1)
  62
  63 #define LUA_TNIL                0
  64 #define LUA_TBOOLEAN            1
  65 #define LUA_TLIGHTUSERDATA      2
  66 #define LUA_TNUMBER             3
  67 #define LUA_TSTRING             4
  68 #define LUA_TTABLE              5
  69 #define LUA_TFUNCTION           6
  70 #define LUA_TUSERDATA           7
  71 #define LUA_TTHREAD             8
  72
  73 #define LUA_NUMTAGS             9
  74
  75
  76
  77 /* minimum Lua stack available to a C function */
  78 #define LUA_MINSTACK    20
  79
  80
  81 /* predefined values in the registry */
  82 #define LUA_RIDX_MAINTHREAD     1
  83 #define LUA_RIDX_GLOBALS        2
  84 #define LUA_RIDX_LAST           LUA_RIDX_GLOBALS
  85
  86
  87 /* type of numbers in Lua */
  88 typedef LUA_NUMBER lua_Number;
  89
  90
  91 /* type for integer functions */
  92 typedef LUA_INTEGER lua_Integer;
  93
  94 /* unsigned integer type */
  95 typedef LUA_UNSIGNED lua_Unsigned;
  96
  97 /* type for continuation-function contexts */
  98 typedef LUA_KCONTEXT lua_KContext;
  99
 100
 101 /*
 102 ** Type for C functions registered with Lua
 103 */
 104 typedef int (*lua_CFunction) (lua_State *L);
 105
 106 /*
 107 ** Type for continuation functions
 108 */
 109 typedef int (*lua_KFunction) (lua_State *L, int status, lua_KContext ctx);
 110
 111
 112 /*
 113 ** Type for functions that read/write blocks when loading/dumping Lua chunks
 114 */
 115 typedef const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz);
 116
 117 typedef int (*lua_Writer) (lua_State *L, const void *p, size_t sz, void *ud);
 118
 119
 120 /*
 121 ** Type for memory-allocation functions
 122 */
 123 typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
 124
 125
 126
 127 /*
 128 ** generic extra include file
 129 */
 130 #if defined(LUA_USER_H)
 131 #include LUA_USER_H
 132 #endif
 133
 134
 135 /*
 136 ** RCS ident string
 137 */
 138 extern const char lua_ident[];
 139
 140
 141 /*
 142 ** state manipulation
 143 */
 144 LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud);
 145 LUA_API void       (lua_close) (lua_State *L);
 146 LUA_API lua_State *(lua_newthread) (lua_State *L);
 147
 148 LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);
 149
 150
 151 LUA_API const lua_Number *(lua_version) (lua_State *L);
 152
 153
 154 /*
 155 ** basic stack manipulation
 156 */
 157 LUA_API int   (lua_absindex) (lua_State *L, int idx);
 158 LUA_API int   (lua_gettop) (lua_State *L);
 159 LUA_API void  (lua_settop) (lua_State *L, int idx);
 160 LUA_API void  (lua_pushvalue) (lua_State *L, int idx);
 161 LUA_API void  (lua_rotate) (lua_State *L, int idx, int n);
 162 LUA_API void  (lua_copy) (lua_State *L, int fromidx, int toidx);
 163 LUA_API int   (lua_checkstack) (lua_State *L, int n);
 164
 165 LUA_API void  (lua_xmove) (lua_State *from, lua_State *to, int n);
 166
 167
 168 /*
 169 ** access functions (stack -> C)
 170 */
 171
 172 LUA_API int             (lua_isnumber) (lua_State *L, int idx);
 173 LUA_API int             (lua_isstring) (lua_State *L, int idx);
 174 LUA_API int             (lua_iscfunction) (lua_State *L, int idx);
 175 LUA_API int             (lua_isinteger) (lua_State *L, int idx);
 176 LUA_API int             (lua_isuserdata) (lua_State *L, int idx);
 177 LUA_API int             (lua_type) (lua_State *L, int idx);
 178 LUA_API const char     *(lua_typename) (lua_State *L, int tp);
 179
 180 LUA_API lua_Number      (lua_tonumberx) (lua_State *L, int idx, int *isnum);
 181 LUA_API lua_Integer     (lua_tointegerx) (lua_State *L, int idx, int *isnum);
 182 LUA_API int             (lua_toboolean) (lua_State *L, int idx);
 183 LUA_API const char     *(lua_tolstring) (lua_State *L, int idx, size_t *len);
 184 LUA_API size_t          (lua_rawlen) (lua_State *L, int idx);
 185 LUA_API lua_CFunction   (lua_tocfunction) (lua_State *L, int idx);
 186 LUA_API void           *(lua_touserdata) (lua_State *L, int idx);
 187 LUA_API lua_State      *(lua_tothread) (lua_State *L, int idx);
 188 LUA_API const void     *(lua_topointer) (lua_State *L, int idx);
 189
 190
 191 /*
 192 ** Comparison and arithmetic functions
 193 */
 194
 195 #define LUA_OPADD       0       /* ORDER TM, ORDER OP */
 196 #define LUA_OPSUB       1
 197 #define LUA_OPMUL       2
 198 #define LUA_OPMOD       3
 199 #define LUA_OPPOW       4
 200 #define LUA_OPDIV       5
 201 #define LUA_OPIDIV      6
 202 #define LUA_OPBAND      7
 203 #define LUA_OPBOR       8
 204 #define LUA_OPBXOR      9
 205 #define LUA_OPSHL       10
 206 #define LUA_OPSHR       11
 207 #define LUA_OPUNM       12
 208 #define LUA_OPBNOT      13
 209
 210 LUA_API void  (lua_arith) (lua_State *L, int op);
 211
 212 #define LUA_OPEQ        0
 213 #define LUA_OPLT        1
 214 #define LUA_OPLE        2
 215
 216 LUA_API int   (lua_rawequal) (lua_State *L, int idx1, int idx2);
 217 LUA_API int   (lua_compare) (lua_State *L, int idx1, int idx2, int op);
 218
 219
 220 /*
 221 ** push functions (C -> stack)
 222 */
 223 LUA_API void        (lua_pushnil) (lua_State *L);
 224 LUA_API void        (lua_pushnumber) (lua_State *L, lua_Number n);
 225 LUA_API void        (lua_pushinteger) (lua_State *L, lua_Integer n);
 226 LUA_API const char *(lua_pushlstring) (lua_State *L, const char *s, size_t len);
 227 LUA_API const char *(lua_pushstring) (lua_State *L, const char *s);
 228 LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt,
 229                                                       va_list argp);
 230 LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...);
 231 LUA_API void  (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n);
 232 LUA_API void  (lua_pushboolean) (lua_State *L, int b);
 233 LUA_API void  (lua_pushlightuserdata) (lua_State *L, void *p);
 234 LUA_API int   (lua_pushthread) (lua_State *L);
 235
 236
 237 /*
 238 ** get functions (Lua -> stack)
 239 */
 240 LUA_API int (lua_getglobal) (lua_State *L, const char *name);
 241 LUA_API int (lua_gettable) (lua_State *L, int idx);
 242 LUA_API int (lua_getfield) (lua_State *L, int idx, const char *k);
 243 LUA_API int (lua_geti) (lua_State *L, int idx, lua_Integer n);
 244 LUA_API int (lua_rawget) (lua_State *L, int idx);
 245 LUA_API int (lua_rawgeti) (lua_State *L, int idx, lua_Integer n);
 246 LUA_API int (lua_rawgetp) (lua_State *L, int idx, const void *p);
 247
 248 LUA_API void  (lua_createtable) (lua_State *L, int narr, int nrec);
 249 LUA_API void *(lua_newuserdata) (lua_State *L, size_t sz);
 250 LUA_API int   (lua_getmetatable) (lua_State *L, int objindex);
 251 LUA_API int  (lua_getuservalue) (lua_State *L, int idx);
 252
 253
 254 /*
 255 ** set functions (stack -> Lua)
 256 */
 257 LUA_API void  (lua_setglobal) (lua_State *L, const char *name);
 258 LUA_API void  (lua_settable) (lua_State *L, int idx);
 259 LUA_API void  (lua_setfield) (lua_State *L, int idx, const char *k);
 260 LUA_API void  (lua_seti) (lua_State *L, int idx, lua_Integer n);
 261 LUA_API void  (lua_rawset) (lua_State *L, int idx);
 262 LUA_API void  (lua_rawseti) (lua_State *L, int idx, lua_Integer n);
 263 LUA_API void  (lua_rawsetp) (lua_State *L, int idx, const void *p);
 264 LUA_API int   (lua_setmetatable) (lua_State *L, int objindex);
 265 LUA_API void  (lua_setuservalue) (lua_State *L, int idx);
 266
 267
 268 /*
 269 ** 'load' and 'call' functions (load and run Lua code)
 270 */
 271 LUA_API void  (lua_callk) (lua_State *L, int nargs, int nresults,
 272                            lua_KContext ctx, lua_KFunction k);
 273 #define lua_call(L,n,r)         lua_callk(L, (n), (r), 0, NULL)
 274
 275 LUA_API int   (lua_pcallk) (lua_State *L, int nargs, int nresults, int errfunc,
 276                             lua_KContext ctx, lua_KFunction k);
 277 #define lua_pcall(L,n,r,f)      lua_pcallk(L, (n), (r), (f), 0, NULL)
 278
 279 LUA_API int   (lua_load) (lua_State *L, lua_Reader reader, void *dt,
 280                           const char *chunkname, const char *mode);
 281
 282 LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data, int strip);
 283
 284
 285 /*
 286 ** coroutine functions
 287 */
 288 LUA_API int  (lua_yieldk)     (lua_State *L, int nresults, lua_KContext ctx,
 289                                lua_KFunction k);
 290 LUA_API int  (lua_resume)     (lua_State *L, lua_State *from, int narg);
 291 LUA_API int  (lua_status)     (lua_State *L);
 292 LUA_API int (lua_isyieldable) (lua_State *L);
 293
 294 #define lua_yield(L,n)          lua_yieldk(L, (n), 0, NULL)
 295
 296
 297 /*
 298 ** garbage-collection function and options
 299 */
 300
 301 #define LUA_GCSTOP              0
 302 #define LUA_GCRESTART           1
 303 #define LUA_GCCOLLECT           2
 304 #define LUA_GCCOUNT             3
 305 #define LUA_GCCOUNTB            4
 306 #define LUA_GCSTEP              5
 307 #define LUA_GCSETPAUSE          6
 308 #define LUA_GCSETSTEPMUL        7
 309 #define LUA_GCISRUNNING         9
 310
 311 LUA_API int (lua_gc) (lua_State *L, int what, int data);
 312
 313
 314 /*
 315 ** miscellaneous functions
 316 */
 317
 318 LUA_API int   (lua_error) (lua_State *L);
 319
 320 LUA_API int   (lua_next) (lua_State *L, int idx);
 321
 322 LUA_API void  (lua_concat) (lua_State *L, int n);
 323 LUA_API void  (lua_len)    (lua_State *L, int idx);
 324
 325 LUA_API size_t   (lua_stringtonumber) (lua_State *L, const char *s);
 326
 327 LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);
 328 LUA_API void      (lua_setallocf) (lua_State *L, lua_Alloc f, void *ud);
 329
 330
 331
 332 /*
 333 ** {==============================================================
 334 ** some useful macros
 335 ** ===============================================================
 336 */
 337
 338 #define lua_getextraspace(L)    ((void *)((char *)(L) - LUA_EXTRASPACE))
 339
 340 #define lua_tonumber(L,i)       lua_tonumberx(L,(i),NULL)
 341 #define lua_tointeger(L,i)      lua_tointegerx(L,(i),NULL)
 342
 343 #define lua_pop(L,n)            lua_settop(L, -(n)-1)
 344
 345 #define lua_newtable(L)         lua_createtable(L, 0, 0)
 346
 347 #define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))
 348
 349 #define lua_pushcfunction(L,f)  lua_pushcclosure(L, (f), 0)
 350
 351 #define lua_isfunction(L,n)     (lua_type(L, (n)) == LUA_TFUNCTION)
 352 #define lua_istable(L,n)        (lua_type(L, (n)) == LUA_TTABLE)
 353 #define lua_islightuserdata(L,n)        (lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
 354 #define lua_isnil(L,n)          (lua_type(L, (n)) == LUA_TNIL)
 355 #define lua_isboolean(L,n)      (lua_type(L, (n)) == LUA_TBOOLEAN)
 356 #define lua_isthread(L,n)       (lua_type(L, (n)) == LUA_TTHREAD)
 357 #define lua_isnone(L,n)         (lua_type(L, (n)) == LUA_TNONE)
 358 #define lua_isnoneornil(L, n)   (lua_type(L, (n)) <= 0)
 359
 360 #define lua_pushliteral(L, s)   lua_pushstring(L, "" s)
 361
 362 #define lua_pushglobaltable(L)  \
 363         ((void)lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS))
 364
 365 #define lua_tostring(L,i)       lua_tolstring(L, (i), NULL)
 366
 367
 368 #define lua_insert(L,idx)       lua_rotate(L, (idx), 1)
 369
 370 #define lua_remove(L,idx)       (lua_rotate(L, (idx), -1), lua_pop(L, 1))
 371
 372 #define lua_replace(L,idx)      (lua_copy(L, -1, (idx)), lua_pop(L, 1))
 373
 374 /* }============================================================== */
 375
 376
 377 /*
 378 ** {==============================================================
 379 ** compatibility macros for unsigned conversions
 380 ** ===============================================================
 381 */
 382 #if defined(LUA_COMPAT_APIINTCASTS)
 383
 384 #define lua_pushunsigned(L,n)   lua_pushinteger(L, (lua_Integer)(n))
 385 #define lua_tounsignedx(L,i,is) ((lua_Unsigned)lua_tointegerx(L,i,is))
 386 #define lua_tounsigned(L,i)     lua_tounsignedx(L,(i),NULL)
 387
 388 #endif
 389 /* }============================================================== */
 390
 391 /*
 392 ** {======================================================================
 393 ** Debug API
 394 ** =======================================================================
 395 */
 396
 397
 398 /*
 399 ** Event codes
 400 */
 401 #define LUA_HOOKCALL    0
 402 #define LUA_HOOKRET     1
 403 #define LUA_HOOKLINE    2
 404 #define LUA_HOOKCOUNT   3
 405 #define LUA_HOOKTAILCALL 4
 406
 407
 408 /*
 409 ** Event masks
 410 */
 411 #define LUA_MASKCALL    (1 << LUA_HOOKCALL)
 412 #define LUA_MASKRET     (1 << LUA_HOOKRET)
 413 #define LUA_MASKLINE    (1 << LUA_HOOKLINE)
 414 #define LUA_MASKCOUNT   (1 << LUA_HOOKCOUNT)
 415
 416 typedef struct lua_Debug lua_Debug;  /* activation record */
 417
 418
 419 /* Functions to be called by the debugger in specific events */
 420 typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
 421
 422
 423 LUA_API int (lua_getstack) (lua_State *L, int level, lua_Debug *ar);
 424 LUA_API int (lua_getinfo) (lua_State *L, const char *what, lua_Debug *ar);
 425 LUA_API const char *(lua_getlocal) (lua_State *L, const lua_Debug *ar, int n);
 426 LUA_API const char *(lua_setlocal) (lua_State *L, const lua_Debug *ar, int n);
 427 LUA_API const char *(lua_getupvalue) (lua_State *L, int funcindex, int n);
 428 LUA_API const char *(lua_setupvalue) (lua_State *L, int funcindex, int n);
 429
 430 LUA_API void *(lua_upvalueid) (lua_State *L, int fidx, int n);
 431 LUA_API void  (lua_upvaluejoin) (lua_State *L, int fidx1, int n1,
 432                                                int fidx2, int n2);
 433
 434 LUA_API void (lua_sethook) (lua_State *L, lua_Hook func, int mask, int count);
 435 LUA_API lua_Hook (lua_gethook) (lua_State *L);
 436 LUA_API int (lua_gethookmask) (lua_State *L);
 437 LUA_API int (lua_gethookcount) (lua_State *L);
 438
 439
 440 struct lua_Debug {
 441   int event;
 442   const char *name;     /* (n) */
 443   const char *namewhat; /* (n) 'global', 'local', 'field', 'method' */
 444   const char *what;     /* (S) 'Lua', 'C', 'main', 'tail' */
 445   const char *source;   /* (S) */
 446   int currentline;      /* (l) */
 447   int linedefined;      /* (S) */
 448   int lastlinedefined;  /* (S) */
 449   unsigned char nups;   /* (u) number of upvalues */
 450   unsigned char nparams;/* (u) number of parameters */
 451   char isvararg;        /* (u) */
 452   char istailcall;      /* (t) */
 453   char short_src[LUA_IDSIZE]; /* (S) */
 454   /* private part */
 455   struct CallInfo *i_ci;  /* active function */
 456 };
 457
 458 /* }====================================================================== */
 459
 460
 461 /******************************************************************************
 462 * Copyright (C) 1994-2020 Lua.org, PUC-Rio.
 463 *
 464 * Permission is hereby granted, free of charge, to any person obtaining
 465 * a copy of this software and associated documentation files (the
 466 * "Software"), to deal in the Software without restriction, including
 467 * without limitation the rights to use, copy, modify, merge, publish,
 468 * distribute, sublicense, and/or sell copies of the Software, and to
 469 * permit persons to whom the Software is furnished to do so, subject to
 470 * the following conditions:
 471 *
 472 * The above copyright notice and this permission notice shall be
 473 * included in all copies or substantial portions of the Software.
 474 *
 475 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 476 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 477 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 478 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 479 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 480 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 481 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 482 ******************************************************************************/
 483
 484
 485 #endif