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by brian
clean slate |
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/* Copyright (C) 2000-2001, 2003-2004 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* Mallocs for used in threads */
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#include "mysql_priv.h" |
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extern "C" { |
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void sql_alloc_error_handler(void) |
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{
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sql_print_error(ER(ER_OUT_OF_RESOURCES)); |
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}
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}
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void init_sql_alloc(MEM_ROOT *mem_root, uint block_size, uint pre_alloc) |
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{
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init_alloc_root(mem_root, block_size, pre_alloc); |
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mem_root->error_handler=sql_alloc_error_handler; |
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}
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void *sql_alloc(size_t Size) |
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{
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MEM_ROOT *root= *my_pthread_getspecific_ptr(MEM_ROOT**,THR_MALLOC); |
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return alloc_root(root,Size); |
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}
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void *sql_calloc(size_t size) |
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{
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void *ptr; |
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if ((ptr=sql_alloc(size))) |
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bzero(ptr,size); |
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return ptr; |
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}
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char *sql_strdup(const char *str) |
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{
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size_t len= strlen(str)+1; |
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char *pos; |
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if ((pos= (char*) sql_alloc(len))) |
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memcpy(pos,str,len); |
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return pos; |
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}
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char *sql_strmake(const char *str, size_t len) |
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{
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char *pos; |
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if ((pos= (char*) sql_alloc(len+1))) |
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{
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memcpy(pos,str,len); |
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pos[len]=0; |
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}
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return pos; |
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}
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void* sql_memdup(const void *ptr, size_t len) |
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{
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void *pos; |
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if ((pos= sql_alloc(len))) |
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memcpy(pos,ptr,len); |
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return pos; |
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}
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void sql_element_free(void *ptr __attribute__((unused))) |
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{} /* purecov: deadcode */ |
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char *sql_strmake_with_convert(const char *str, size_t arg_length, |
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CHARSET_INFO *from_cs, |
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size_t max_res_length, |
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CHARSET_INFO *to_cs, size_t *result_length) |
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{
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char *pos; |
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size_t new_length= to_cs->mbmaxlen*arg_length; |
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max_res_length--; // Reserve place for end null |
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set_if_smaller(new_length, max_res_length); |
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if (!(pos= (char*) sql_alloc(new_length+1))) |
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return pos; // Error |
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if ((from_cs == &my_charset_bin) || (to_cs == &my_charset_bin)) |
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{
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// Safety if to_cs->mbmaxlen > 0
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new_length= min(arg_length, max_res_length); |
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memcpy(pos, str, new_length); |
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}
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else
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{
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uint dummy_errors; |
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new_length= copy_and_convert((char*) pos, new_length, to_cs, str, |
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arg_length, from_cs, &dummy_errors); |
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}
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pos[new_length]= 0; |
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*result_length= new_length; |
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return pos; |
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}
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