diff options
| author | click <none@none> | 2010-08-07 19:01:57 +0200 |
|---|---|---|
| committer | click <none@none> | 2010-08-07 19:01:57 +0200 |
| commit | ce435f6d4f84462c0707bbc608d767648d5e99c3 (patch) | |
| tree | dabac44fd559c925acf2171adb0ae3038f05ad7b /externals/mysql/mysys/my_vle.c | |
| parent | 3cc24e0971f96b9ffa4032a154750e4224ea499d (diff) | |
BuildSystem/VS: Remove now defunct an unmaintained buildfiles - use CMake for generating solutionfiles
--HG--
branch : trunk
Diffstat (limited to 'externals/mysql/mysys/my_vle.c')
| -rw-r--r-- | externals/mysql/mysys/my_vle.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/externals/mysql/mysys/my_vle.c b/externals/mysql/mysys/my_vle.c deleted file mode 100644 index 09f297eb553..00000000000 --- a/externals/mysql/mysys/my_vle.c +++ /dev/null @@ -1,109 +0,0 @@ -/* Copyright (C) 2005 MySQL AB - - 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; version 2 of the License. - - 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - -/* - Variable length encoding. - - A method to store an arbitrary-size non-negative integer. We let the - most significant bit of the number indicate that the next byte - should be contatenated to form the real number. -*/ - -#include "my_vle.h" - -/* - Function to encode an unsigned long as VLE. The bytes for the VLE - will be written to the location pointed to by 'out'. The maximum - number of bytes written will be 'max'. - - PARAMETERS - - out Pointer to beginning of where to store VLE bytes. - max Maximum number of bytes to write. - n Number to encode. - - RETURN VALUE - On success, one past the end of the array containing the VLE - bytes. On failure, the 'out' pointer is returned. -*/ - -uchar* -my_vle_encode(uchar* out, size_t max, ulong n) -{ - uchar buf[my_vle_sizeof(n)]; - uchar *ptr= buf; - size_t len; - - do - { - *ptr++= (uchar) (n & 0x7F); - n>>= 7; - } - while (n > 0); - - len= ptr - buf; - - if (len <= max) - { - /* - The bytes are stored in reverse order in 'buf'. Let's write them - in correct order to the output buffer and set the MSB at the - same time. - */ - while (ptr-- > buf) - { - uchar v= *ptr; - if (ptr > buf) - v|= 0x80; - *out++= v; - } - } - - return out; -} - -/* - Function to decode a VLE representation of an integral value. - - - PARAMETERS - - result_ptr Pointer to an unsigned long where the value will be written. - vle Pointer to the VLE bytes. - - RETURN VALUE - - One-past the end of the VLE bytes. The routine will never read - more than sizeof(*result_ptr) + 1 bytes. -*/ - -uchar const* -my_vle_decode(ulong *result_ptr, uchar const *vle) -{ - ulong result= 0; - size_t cnt= 1; - - do - { - result<<= 7; - result|= (*vle & 0x7F); - } - while ((*vle++ & 0x80) && ++cnt <= sizeof(*result_ptr) + 1); - - if (cnt <= sizeof(*result_ptr) + 1) - *result_ptr= result; - - return vle; -} |
