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Annotation of os2sdk/include/malloc.h, revision 1.1

1.1     ! root        1: /***
        !             2: *malloc.h - declarations and definitions for memory allocation functions
        !             3: *
        !             4: *   Copyright (c) 1985-1987, Microsoft Corporation.  All rights reserved.
        !             5: *
        !             6: *Purpose:
        !             7: *   Contains the function declarations for memory allocation functions;
        !             8: *   also defines manifest constants and types used by the heap routines.
        !             9: *   [System V]
        !            10: *
        !            11: *******************************************************************************/
        !            12: 
        !            13: #define _HEAPEMPTY      -1
        !            14: #define _HEAPOK         -2
        !            15: #define _HEAPBADBEGIN   -3
        !            16: #define _HEAPBADNODE    -4
        !            17: #define _HEAPEND        -5
        !            18: #define _HEAPBADPTR     -6
        !            19: #define _FREEENTRY      0
        !            20: #define _USEDENTRY      1
        !            21: 
        !            22: #ifndef _SIZE_T_DEFINED
        !            23: typedef unsigned int size_t;
        !            24: #define _SIZE_T_DEFINED
        !            25: #endif
        !            26: 
        !            27: #if (!defined(NO_EXT_KEYS))
        !            28: 
        !            29: #ifndef _HEAPINFO_DEFINED
        !            30: typedef struct _heapinfo {
        !            31:     int far * _pentry;
        !            32:     size_t _size;
        !            33:     int _useflag;
        !            34:     } _HEAPINFO;
        !            35: #define _HEAPINFO_DEFINED
        !            36: #endif
        !            37: 
        !            38: #else   /* NO_EXT_KEYS */
        !            39: #if (defined(M_I86CM) || defined(M_I86LM) || defined(M_I86HM))
        !            40: 
        !            41: #ifndef _HEAPINFO_DEFINED
        !            42: 
        !            43: typedef struct _heapinfo {
        !            44:     int * _pentry;
        !            45:     size_t _size;
        !            46:     int _useflag;
        !            47:     } _HEAPINFO;
        !            48: 
        !            49: #define _HEAPINFO_DEFINED
        !            50: #endif
        !            51: 
        !            52: #endif  /* M_I86CM || M_I86LM || M_I86HM */
        !            53: 
        !            54: #endif  /* NO_EXT_KEYS */
        !            55: 
        !            56: 
        !            57: #if (defined(M_I86SM) || defined(M_I86MM))
        !            58: #define _heapchk  _nheapchk
        !            59: #define _heapset  _nheapset
        !            60: #define _heapwalk _nheapwalk
        !            61: #endif
        !            62: #if (defined(M_I86CM) || defined(M_I86LM) || defined(M_I86HM))
        !            63: #define _heapchk  _fheapchk
        !            64: #define _heapset  _fheapset
        !            65: #define _heapwalk _fheapwalk
        !            66: #endif
        !            67: 
        !            68: #ifndef NO_EXT_KEYS /* extensions enabled */
        !            69:     #define _CDECL  cdecl
        !            70:     #define _NEAR   near
        !            71: #else /* extensions not enabled */
        !            72:     #define _CDECL
        !            73:     #define _NEAR
        !            74: #endif /* NO_EXT_KEYS */
        !            75: 
        !            76: 
        !            77: /* external variable declarations */
        !            78: 
        !            79: extern unsigned int _NEAR _CDECL _amblksiz;
        !            80: 
        !            81: 
        !            82: /* function prototypes */
        !            83: 
        !            84: void * _CDECL alloca(size_t);
        !            85: void * _CDECL calloc(size_t, size_t);
        !            86: void * _CDECL _expand(void *, size_t);
        !            87: int _CDECL _fheapchk(void);
        !            88: int _CDECL _fheapset(unsigned int);
        !            89: unsigned int _CDECL _freect(size_t);
        !            90: void _CDECL free(void *);
        !            91: void * _CDECL malloc(size_t);
        !            92: size_t _CDECL _memavl(void);
        !            93: size_t _CDECL _memmax(void);
        !            94: size_t _CDECL _msize(void *);
        !            95: int _CDECL _nheapchk(void);
        !            96: int _CDECL _nheapset(unsigned int);
        !            97: void * _CDECL realloc(void *, size_t);
        !            98: void * _CDECL sbrk(int);
        !            99: size_t _CDECL stackavail(void);
        !           100: 
        !           101: 
        !           102: #ifndef NO_EXT_KEYS /* extensions enabled */
        !           103: 
        !           104: void cdecl _ffree(void far *);
        !           105: void far * cdecl _fmalloc(size_t);
        !           106: size_t cdecl _fmsize(void far *);
        !           107: #ifndef _QC
        !           108: void huge * cdecl halloc(long, size_t);
        !           109: void cdecl hfree(void huge *);
        !           110: #endif
        !           111: void cdecl _nfree(void near *);
        !           112: void near * cdecl _nmalloc(size_t);
        !           113: size_t cdecl _nmsize(void near *);
        !           114: int cdecl _nheapwalk(struct _heapinfo *);
        !           115: int cdecl _fheapwalk(struct _heapinfo *);
        !           116: 
        !           117: #else
        !           118: #if (defined(M_I86CM) || defined(M_I86LM) || defined(M_I86HM))
        !           119: 
        !           120: int _nheapwalk(struct _heapinfo *);
        !           121: int _fheapwalk(struct _heapinfo *);
        !           122: 
        !           123: #endif  /* M_I86CM || M_I86LM || M_I86HM */
        !           124: 
        !           125: #endif /* NO_EXT_KEYS */

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