diff options
Diffstat (limited to 'deps/mysqllite/mysys/my_once.c')
-rw-r--r-- | deps/mysqllite/mysys/my_once.c | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/deps/mysqllite/mysys/my_once.c b/deps/mysqllite/mysys/my_once.c deleted file mode 100644 index 32d0780202..0000000000 --- a/deps/mysqllite/mysys/my_once.c +++ /dev/null @@ -1,119 +0,0 @@ -/* Copyright (C) 2000 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 */ - -/* Not MT-SAFE */ - -#include "mysys_priv.h" -#include "my_static.h" -#include "mysys_err.h" -#include <m_string.h> - -/* - Alloc for things we don't nend to free run-time (that only - should be free'd on exit) - - SYNOPSIS - my_once_alloc() - Size - MyFlags - - NOTES - No DBUG_ENTER... here to get smaller dbug-startup -*/ - -void* my_once_alloc(size_t Size, myf MyFlags) -{ - size_t get_size, max_left; - uchar* point; - reg1 USED_MEM *next; - reg2 USED_MEM **prev; - - Size= ALIGN_SIZE(Size); - prev= &my_once_root_block; - max_left=0; - for (next=my_once_root_block ; next && next->left < Size ; next= next->next) - { - if (next->left > max_left) - max_left=next->left; - prev= &next->next; - } - if (! next) - { /* Time to alloc new block */ - get_size= Size+ALIGN_SIZE(sizeof(USED_MEM)); - if (max_left*4 < my_once_extra && get_size < my_once_extra) - get_size=my_once_extra; /* Normal alloc */ - - if ((next = (USED_MEM*) malloc(get_size)) == 0) - { - my_errno=errno; - if (MyFlags & (MY_FAE+MY_WME)) - my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG),get_size); - return((uchar*) 0); - } - DBUG_PRINT("test",("my_once_malloc %lu byte malloced", (ulong) get_size)); - next->next= 0; - next->size= get_size; - next->left= get_size-ALIGN_SIZE(sizeof(USED_MEM)); - *prev=next; - } - point= (uchar*) ((char*) next+ (next->size-next->left)); - next->left-= Size; - - if (MyFlags & MY_ZEROFILL) - bzero(point, Size); - return((void*) point); -} /* my_once_alloc */ - - -char *my_once_strdup(const char *src,myf myflags) -{ - size_t len= strlen(src)+1; - uchar *dst= my_once_alloc(len, myflags); - if (dst) - memcpy(dst, src, len); - return (char*) dst; -} - - -void *my_once_memdup(const void *src, size_t len, myf myflags) -{ - uchar *dst= my_once_alloc(len, myflags); - if (dst) - memcpy(dst, src, len); - return dst; -} - - -/* - Deallocate everything that was allocated with my_once_alloc - - SYNOPSIS - my_once_free() -*/ - -void my_once_free(void) -{ - reg1 USED_MEM *next,*old; - DBUG_ENTER("my_once_free"); - - for (next=my_once_root_block ; next ; ) - { - old=next; next= next->next ; - free((uchar*) old); - } - my_once_root_block=0; - - DBUG_VOID_RETURN; -} /* my_once_free */ |