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Overview
Comment:Adjust the SQLITE_MALLOCSIZE defines, primarily to make sure _msize gets used with MSVC when appropriate.
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SHA1:4e7e805e1139b2dc05d85e86e5c8254e5d361bf2
User & Date: mistachkin 2013-11-12 21:37:04
Context
2013-11-13
08:55
Avoid an unnecessary OP_IfNull while doing an indexed search. check-in: 51960009 user: drh tags: trunk
2013-11-12
21:37
Adjust the SQLITE_MALLOCSIZE defines, primarily to make sure _msize gets used with MSVC when appropriate. check-in: 4e7e805e user: mistachkin tags: trunk
21:10
Fix harmless compiler warning. check-in: ddacd101 user: mistachkin tags: trunk
Changes
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Changes to src/mem1.c.

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/*
** This version of the memory allocator is the default.  It is
** used when no other memory allocator is specified using compile-time
** macros.
*/
#ifdef SQLITE_SYSTEM_MALLOC

/*
** The MSVCRT has malloc_usable_size() but it is called _msize().
** The use of _msize() is automatic, but can be disabled by compiling
** with -DSQLITE_WITHOUT_MSIZE
*/
#if defined(_MSC_VER) && !defined(SQLITE_WITHOUT_MSIZE)
# define SQLITE_MALLOCSIZE _msize
#endif

#if defined(__APPLE__) && !defined(SQLITE_WITHOUT_ZONEMALLOC)

/*
** Use the zone allocator available on apple products unless the
** SQLITE_WITHOUT_ZONEMALLOC symbol is defined.
*/
#include <sys/sysctl.h>
................................................................................

#else /* if not __APPLE__ */

/*
** Use standard C library malloc and free on non-Apple systems.  
** Also used by Apple systems if SQLITE_WITHOUT_ZONEMALLOC is defined.
*/
#define SQLITE_MALLOC(x)    malloc(x)
#define SQLITE_FREE(x)      free(x)
#define SQLITE_REALLOC(x,y) realloc((x),(y))

#if (defined(_MSC_VER) && !defined(SQLITE_WITHOUT_MSIZE)) \




      || (defined(HAVE_MALLOC_H) && defined(HAVE_MALLOC_USABLE_SIZE))
# include <malloc.h>    /* Needed for malloc_usable_size on linux */











#endif










#ifdef HAVE_MALLOC_USABLE_SIZE
# ifndef SQLITE_MALLOCSIZE
#  define SQLITE_MALLOCSIZE(x) malloc_usable_size(x)
# endif
#else

# undef SQLITE_MALLOCSIZE


#endif


#endif /* __APPLE__ or not __APPLE__ */

/*
** Like malloc(), but remember the size of the allocation
** so that we can find it later using sqlite3MemSize().
**







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/*
** This version of the memory allocator is the default.  It is
** used when no other memory allocator is specified using compile-time
** macros.
*/
#ifdef SQLITE_SYSTEM_MALLOC










#if defined(__APPLE__) && !defined(SQLITE_WITHOUT_ZONEMALLOC)

/*
** Use the zone allocator available on apple products unless the
** SQLITE_WITHOUT_ZONEMALLOC symbol is defined.
*/
#include <sys/sysctl.h>
................................................................................

#else /* if not __APPLE__ */

/*
** Use standard C library malloc and free on non-Apple systems.  
** Also used by Apple systems if SQLITE_WITHOUT_ZONEMALLOC is defined.
*/
#define SQLITE_MALLOC(x)             malloc(x)
#define SQLITE_FREE(x)               free(x)
#define SQLITE_REALLOC(x,y)          realloc((x),(y))


/*
** The malloc.h header file is needed for malloc_usable_size() function
** on some systems (e.g. Linux).
*/
#if defined(HAVE_MALLOC_H) && defined(HAVE_MALLOC_USABLE_SIZE)

#  define SQLITE_USE_MALLOC_H
#  define SQLITE_USE_MALLOC_USABLE_SIZE
/*
** The MSVCRT has malloc_usable_size(), but it is called _msize().  The
** use of _msize() is automatic, but can be disabled by compiling with
** -DSQLITE_WITHOUT_MSIZE.  Using the _msize() function also requires
** the malloc.h header file.
*/
#elif defined(_MSC_VER) && !defined(SQLITE_WITHOUT_MSIZE)
#  define SQLITE_USE_MALLOC_H
#  define SQLITE_USE_MSIZE
#endif

/*
** Include the malloc.h header file, if necessary.  Also set define macro
** SQLITE_MALLOCSIZE to the appropriate function name, which is _msize()
** for MSVC and malloc_usable_size() for most other systems (e.g. Linux).
** The memory size function can always be overridden manually by defining
** the macro SQLITE_MALLOCSIZE to the desired function name.
*/
#if defined(SQLITE_USE_MALLOC_H)
#  include <malloc.h>
#  if defined(SQLITE_USE_MALLOC_USABLE_SIZE)
#    if !defined(SQLITE_MALLOCSIZE)
#      define SQLITE_MALLOCSIZE(x)   malloc_usable_size(x)
#    endif

#  elif defined(SQLITE_USE_MSIZE)
#    if !defined(SQLITE_MALLOCSIZE)
#      define SQLITE_MALLOCSIZE      _msize
#    endif
#  endif
#endif /* defined(SQLITE_USE_MALLOC_H) */

#endif /* __APPLE__ or not __APPLE__ */

/*
** Like malloc(), but remember the size of the allocation
** so that we can find it later using sqlite3MemSize().
**