lua/src/lmem.c - main - antim/LuaPlayer-by-YuliaTeam

lua/src/lmem.c
136 строк8 KB
r3trob0y
Initial commit
18 окт 2025, 02:50
18 окт 2025, 02:5014d430e
/*----------------------------------------------------------------------------------------------------------------------#
#-----------------------------------------------------------------------------------------------------------------------#
#------  This File is Part Of : ----------------------------------------------------------------------------------------#
#------- _  -------------------  ______   _   --------------------------------------------------------------------------#
#------ | | ------------------- (_____ \ | |  --------------------------------------------------------------------------#
#------ | | ---  _   _   ____    _____) )| |  ____  _   _   ____   ____   ----------------------------------------------#
#------ | | --- | | | | / _  |  |  ____/ | | / _  || | | | / _  ) / ___)  ----------------------------------------------#
#------ | |_____| |_| |( ( | |  | |      | |( ( | || |_| |( (/ / | |  --------------------------------------------------#
#------ |_______)\____| \_||_|  |_|      |_| \_||_| \__  | \____)|_|  --------------------------------------------------#
#------------------------------------------------- (____/  -------------------------------------------------------------#
#------------------------   ______   _   -------------------------------------------------------------------------------#
#------------------------  (_____ \ | |  -------------------------------------------------------------------------------#
#------------------------   _____) )| | _   _   ___   ------------------------------------------------------------------#
#------------------------  |  ____/ | || | | | /___)  ------------------------------------------------------------------#
#------------------------  | |      | || |_| ||___ |  ------------------------------------------------------------------#
#------------------------  |_|      |_| \____|(___/   ------------------------------------------------------------------#
#-----------------------------------------------------------------------------------------------------------------------#
#-----------------------------------------------------------------------------------------------------------------------#
#- Licensed under the GPL License --------------------------------------------------------------------------------------#
#-----------------------------------------------------------------------------------------------------------------------#
#- Copyright (c) Nanni <cusunanni@hotmail.it> --------------------------------------------------------------------------#
#- Copyright (c) Rinnegatamante <rinnegatamante@eternalongju2.com> -----------------------------------------------------#
#-----------------------------------------------------------------------------------------------------------------------#
#- Official Forum : http://rinnegatamante.eu/luaplayerplus/forum.php ---------------------------------------------------#
#- For help using LuaPlayerPlus, coding help, and other please visit : http://rinnegatamante.eu/luaplayerplus/forum.php #
#-----------------------------------------------------------------------------------------------------------------------#
#- Credits : -----------------------------------------------------------------------------------------------------------#
#-----------------------------------------------------------------------------------------------------------------------#
#- Homemister for LPHM sourcecode --------------------------------------------------------------------------------------#
#- Zack & Shine for LP Euphoria sourcecode -----------------------------------------------------------------------------#
#- ab5000 for support on psp-ita.com -----------------------------------------------------------------------------------#
#- valantin for sceIoMvdir and sceIoCpdir improved functions------------------------------------------------------------#
#- Dark_AleX for usbdevice ---------------------------------------------------------------------------------------------#
#- VirtuosFlame & ColdBird for iso drivers and kuBridge ----------------------------------------------------------------#
#- sakya for Media Engine and OslibMod ---------------------------------------------------------------------------------#
#- Booster & silverspring for EEPROM write/read functions --------------------------------------------------------------#
#- Akind for RemoteJoyLite ---------------------------------------------------------------------------------------------#
#- cooleyes for mpeg4 lib ----------------------------------------------------------------------------------------------#
#- Arshia001 for PSPAALib ----------------------------------------------------------------------------------------------#
#- InsertWittyName & MK2k for PGE sourcecode ---------------------------------------------------------------------------#
#- Youresam for LUA BMPLib ---------------------------------------------------------------------------------------------#
#- Raphael for vram manager code ---------------------------------------------------------------------------------------#
#- Dynodzzo for LSD concepts -------------------------------------------------------------------------------------------#
#- ab_portugal for Image.negative function -----------------------------------------------------------------------------#
#- JiC� for drawCircle function ----------------------------------------------------------------------------------------#
#- Rapper_skull & DarkGiovy for testing LuaPlayer Plus and coming up with some neat ideas for it. ----------------------#
#-----------------------------------------------------------------------------------------------------------------------#
#-----------------------------------------------------------------------------------------------------------------------#
#-----------------------------------------------------------------------------------------------------------------------#
#-----------------------------------------------------------------------------------------------------------------------*/

/*
** $Id: lmem.c,v 1.70.1.1 2007/12/27 13:02:25 roberto Exp $
** Interface to Memory Manager
** See Copyright Notice in lua.h
*/


#include <stddef.h>

#define lmem_c
#define LUA_CORE

#include "lua.h"

#include "ldebug.h"
#include "ldo.h"
#include "lmem.h"
#include "lobject.h"
#include "lstate.h"



/*
** About the realloc function:
** void * frealloc (void *ud, void *ptr, size_t osize, size_t nsize);
** (`osize' is the old size, `nsize' is the new size)
**
** Lua ensures that (ptr == NULL) iff (osize == 0).
**
** * frealloc(ud, NULL, 0, x) creates a new block of size `x'
**
** * frealloc(ud, p, x, 0) frees the block `p'
** (in this specific case, frealloc must return NULL).
** particularly, frealloc(ud, NULL, 0, 0) does nothing
** (which is equivalent to free(NULL) in ANSI C)
**
** frealloc returns NULL if it cannot create or reallocate the area
** (any reallocation to an equal or smaller size cannot fail!)
*/



#define MINSIZEARRAY	4


void *luaM_growaux_ (lua_State *L, void *block, int *size, size_t size_elems,
                     int limit, const char *errormsg) {
  void *newblock;
  int newsize;
  if (*size >= limit/2) {  /* cannot double it? */
    if (*size >= limit)  /* cannot grow even a little? */
      luaG_runerror(L, errormsg);
    newsize = limit;  /* still have at least one free place */
  }
  else {
    newsize = (*size)*2;
    if (newsize < MINSIZEARRAY)
      newsize = MINSIZEARRAY;  /* minimum size */
  }
  newblock = luaM_reallocv(L, block, *size, newsize, size_elems);
  *size = newsize;  /* update only when everything else is OK */
  return newblock;
}


void *luaM_toobig (lua_State *L) {
  luaG_runerror(L, "memory allocation error: block too big");
  return NULL;  /* to avoid warnings */
}



/*
** generic allocation routine.
*/
void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) {
  global_State *g = G(L);
  lua_assert((osize == 0) == (block == NULL));
  block = (*g->frealloc)(g->ud, block, osize, nsize);
  if (block == NULL && nsize > 0)
    luaD_throw(L, LUA_ERRMEM);
  lua_assert((nsize == 0) == (block == NULL));
  g->totalbytes = (g->totalbytes - osize) + nsize;
  return block;
}