1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult 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; either version 2 of the License, or
(at your option) any later version.
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 */
/* Mallocs for used in threads */
#include "mysql_priv.h"
extern "C" {
void sql_alloc_error_handler(void)
{
THD *thd=current_thd;
if (thd) // QQ; To be removed
thd->fatal_error(); /* purecov: inspected */
sql_print_error(ER(ER_OUT_OF_RESOURCES));
}
}
void init_sql_alloc(MEM_ROOT *mem_root, uint block_size, uint pre_alloc)
{
init_alloc_root(mem_root, block_size, pre_alloc);
mem_root->error_handler=sql_alloc_error_handler;
}
gptr sql_alloc(uint Size)
{
MEM_ROOT *root= *my_pthread_getspecific_ptr(MEM_ROOT**,THR_MALLOC);
char *ptr= (char*) alloc_root(root,Size);
return ptr;
}
gptr sql_calloc(uint size)
{
gptr ptr;
if ((ptr=sql_alloc(size)))
bzero((char*) ptr,size);
return ptr;
}
char *sql_strdup(const char *str)
{
uint len=(uint) strlen(str)+1;
char *pos;
if ((pos= (char*) sql_alloc(len)))
memcpy(pos,str,len);
return pos;
}
char *sql_strmake(const char *str,uint len)
{
char *pos;
if ((pos= (char*) sql_alloc(len+1)))
{
memcpy(pos,str,len);
pos[len]=0;
}
return pos;
}
gptr sql_memdup(const void *ptr,uint len)
{
char *pos;
if ((pos= (char*) sql_alloc(len)))
memcpy(pos,ptr,len);
return pos;
}
void sql_element_free(void *ptr __attribute__((unused)))
{} /* purecov: deadcode */
char *sql_strmake_with_convert(const char *str, uint32 arg_length,
CHARSET_INFO *from_cs,
uint32 max_res_length,
CHARSET_INFO *to_cs, uint32 *result_length)
{
char *pos;
uint32 new_length= to_cs->mbmaxlen*arg_length;
max_res_length--; // Reserve place for end null
set_if_smaller(new_length, max_res_length);
if (!(pos= sql_alloc(new_length+1)))
return pos; // Error
if ((from_cs == &my_charset_bin) || (to_cs == &my_charset_bin))
{
// Safety if to_cs->mbmaxlen > 0
new_length= min(arg_length, max_res_length);
memcpy(pos, str, new_length);
}
else
{
uint dummy_errors;
new_length= copy_and_convert((char*) pos, new_length, to_cs, str,
arg_length, from_cs, &dummy_errors);
}
pos[new_length]= 0;
*result_length= new_length;
return pos;
}
|
