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| author | Peter Eisentraut <peter_e@gmx.net> | 2006-02-16 23:23:50 +0000 |
|---|---|---|
| committer | Peter Eisentraut <peter_e@gmx.net> | 2006-02-16 23:23:50 +0000 |
| commit | 15a3c33164692c06601b330b9c86a05a0c4e188e (patch) | |
| tree | ccc454407176d24d6895f8e328342570baac8be2 /src | |
| parent | 422998d275737fb43effa24eb26545cce73b056c (diff) | |
| download | postgresql-15a3c33164692c06601b330b9c86a05a0c4e188e.tar.gz postgresql-15a3c33164692c06601b330b9c86a05a0c4e188e.zip | |
Change MemSet to use long instead of int32, for better performance on
64-bit platforms.
by ITAGAKI Takahiro
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/c.h | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/src/include/c.h b/src/include/c.h index 8c3881bf9e0..adade7f6456 100644 --- a/src/include/c.h +++ b/src/include/c.h @@ -12,7 +12,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/c.h,v 1.195 2006/02/03 13:53:15 momjian Exp $ + * $PostgreSQL: pgsql/src/include/c.h,v 1.196 2006/02/16 23:23:50 petere Exp $ * *------------------------------------------------------------------------- */ @@ -603,8 +603,8 @@ typedef NameData *Name; } while (0) -/* Get a bit mask of the bits set in non-int32 aligned addresses */ -#define INT_ALIGN_MASK (sizeof(int32) - 1) +/* Get a bit mask of the bits set in non-long aligned addresses */ +#define LONG_ALIGN_MASK (sizeof(long) - 1) /* * MemSet @@ -624,8 +624,8 @@ typedef NameData *Name; int _val = (val); \ Size _len = (len); \ \ - if ((((long) _vstart) & INT_ALIGN_MASK) == 0 && \ - (_len & INT_ALIGN_MASK) == 0 && \ + if ((((long) _vstart) & LONG_ALIGN_MASK) == 0 && \ + (_len & LONG_ALIGN_MASK) == 0 && \ _val == 0 && \ _len <= MEMSET_LOOP_LIMIT && \ /* \ @@ -634,8 +634,8 @@ typedef NameData *Name; */ \ MEMSET_LOOP_LIMIT != 0) \ { \ - int32 *_start = (int32 *) _vstart; \ - int32 *_stop = (int32 *) ((char *) _start + _len); \ + long *_start = (long *) _vstart; \ + long *_stop = (long *) ((char *) _start + _len); \ while (_start < _stop) \ *_start++ = 0; \ } \ @@ -652,16 +652,16 @@ typedef NameData *Name; #define MemSetAligned(start, val, len) \ do \ { \ - int32 *_start = (int32 *) (start); \ + long *_start = (long *) (start); \ int _val = (val); \ Size _len = (len); \ \ - if ((_len & INT_ALIGN_MASK) == 0 && \ + if ((_len & LONG_ALIGN_MASK) == 0 && \ _val == 0 && \ _len <= MEMSET_LOOP_LIMIT && \ MEMSET_LOOP_LIMIT != 0) \ { \ - int32 *_stop = (int32 *) ((char *) _start + _len); \ + long *_stop = (long *) ((char *) _start + _len); \ while (_start < _stop) \ *_start++ = 0; \ } \ @@ -679,7 +679,7 @@ typedef NameData *Name; * this approach. */ #define MemSetTest(val, len) \ - ( ((len) & INT_ALIGN_MASK) == 0 && \ + ( ((len) & LONG_ALIGN_MASK) == 0 && \ (len) <= MEMSET_LOOP_LIMIT && \ MEMSET_LOOP_LIMIT != 0 && \ (val) == 0 ) @@ -687,8 +687,8 @@ typedef NameData *Name; #define MemSetLoop(start, val, len) \ do \ { \ - int32 * _start = (int32 *) (start); \ - int32 * _stop = (int32 *) ((char *) _start + (Size) (len)); \ + long * _start = (long *) (start); \ + long * _stop = (long *) ((char *) _start + (Size) (len)); \ \ while (_start < _stop) \ *_start++ = 0; \ |