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Fixed possible access to unintialized memory in filesort when using many buffers

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include/my_sys.h:
  Added function to call if IO_CACHE is moved
mysys/mf_iocache.c:
  Added function to call if IO_CACHE is moved
sql/filesort.cc:
  Tell that io_cache is moved
This commit is contained in:
unknown
2005-01-15 03:47:06 +02:00
parent d3ad1a919e
commit deac81af88
3 changed files with 39 additions and 15 deletions
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include/my_sys.h
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@ -671,6 +671,7 @@ extern int init_io_cache(IO_CACHE *info,File file,uint cachesize,
extern my_bool reinit_io_cache(IO_CACHE *info,enum cache_type type,
my_off_t seek_offset,pbool use_async_io,
pbool clear_cache);
extern void setup_io_cache(IO_CACHE* info);
extern int _my_b_read(IO_CACHE *info,byte *Buffer,uint Count);
#ifdef THREAD
extern int _my_b_read_r(IO_CACHE *info,byte *Buffer,uint Count);