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ext_stdlib.c

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2001  Ludvig Strigeus
 * Copyright (C) 2001-2006 The ScummVM project
 * Copyright (C) 2002-2006 Chris Apers - PalmOS Backend
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL: https://svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-0-9-1/backends/platform/PalmOS/Src/missing/ext_stdlib.c $
 * $Id: ext_stdlib.c 24417 2006-10-21 18:36:35Z chrilith $
 *
 */

#include <stdlib.h>

#ifdef STDLIB_TRACE_MEMORY
UInt32 __stdlib_trace_memory = 0;
#endif

#define memNewChunkFlagAllowLarge   0x1000 
SysAppInfoPtr SysGetAppInfo(SysAppInfoPtr *uiAppPP, SysAppInfoPtr *actionCodeAppPP) SYS_TRAP(sysTrapSysGetAppInfo);

#ifdef PALMOS68K
long strtol(const char *s, char **endptr, int base) {
      // WARNING : only base = 10 supported
      long val = StrAToI(s);
      
      if (endptr) {
            Char str[maxStrIToALen];
            StrIToA(str, val);
            
            if (StrNCompare(s, str, StrLen(str)) == 0)
                  *endptr = (char *)s + StrLen(str);
      }

      return val;
}
#endif

MemPtr __malloc(UInt32 size) {
      MemPtr newP = NULL;

      if (size <= 65000) {
            newP = MemPtrNew(size);
      } else {
            SysAppInfoPtr appInfoP;
            UInt16 ownerID;
            UInt16 attr;

            ownerID = ((SysAppInfoPtr)SysGetAppInfo(&appInfoP, &appInfoP))->memOwnerID; 
            attr  = ownerID|memNewChunkFlagAllowLarge|memNewChunkFlagNonMovable;

            newP = MemChunkNew(0, size, attr);
      }

#ifdef STDLIB_TRACE_MEMORY
      __stdlib_trace_memory += size;
#endif
      return newP;
}

MemPtr calloc(UInt32 nelem, UInt32 elsize) {
      MemPtr newP;
      UInt32 size = (nelem * elsize);

      newP = malloc(size);    // was MemGluePtrNew

      if (newP)
            MemSet(newP,size,0);

#ifdef STDLIB_TRACE_MEMORY
      __stdlib_trace_memory += size;
#endif
      return newP;
}

Err free(MemPtr memP) {
      if (memP) {
#ifdef STDLIB_TRACE_MEMORY
            UInt32 sz = MemPtrSize(memP);
            __stdlib_trace_memory -= sz;
#endif
            return MemPtrFree(memP);
      }

      return memErrInvalidParam;
}

MemPtr realloc(MemPtr oldP, UInt32 size) {
      MemPtr newP;

#ifdef STDLIB_TRACE_MEMORY
      UInt32 sz = MemPtrSize(oldP);
      __stdlib_trace_memory -= sz;
      __stdlib_trace_memory += size;
#endif

      if (oldP != NULL)
            if (MemPtrResize(oldP, size) == 0)
                  return oldP;

      newP = malloc(size);    // was MemPtrNew

      if (oldP!=NULL) {
            MemMove(newP,oldP,MemPtrSize(oldP));
            MemPtrFree(oldP);
      }

      return newP;
}

ErrJumpBuf stdlib_errJumpBuf;
#define ERR_MAGIC 0xDADA

void exit(Int16 status) {
      EventType event;
      event.eType = keyDownEvent;

      event.data.keyDown.chr = vchrLaunch;
      event.data.keyDown.modifiers = commandKeyMask;
#ifdef PALMOS_ARM
      SysEventAddUniqueToQueue(&event, 0, true);
#else
      EvtAddUniqueEventToQueue(&event, 0, true);
#endif

      ErrLongJump(stdlib_errJumpBuf, status == 0 ? 0xDADA : status);
}

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