1
by brian
clean slate |
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/* Copyright (C) 2000-2006 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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1130.3.28
by Monty Taylor
Moved heapdef.h and myisamdef.h to *_priv.h for easier filtering for include guard check. |
16 |
#include "heap_priv.h" |
612.2.13
by Monty Taylor
Work on removing global.h from headers that should be installed. |
17 |
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18 |
#include <drizzled/common.h> |
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#include <drizzled/error.h> |
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#include <string.h> |
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1067.4.8
by Nathan Williams
Converted all usages of cmin/cmax in plugin directory to std::min/max. |
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#include <algorithm> |
23 |
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24 |
using namespace std; |
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1
by brian
clean slate |
25 |
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481
by Brian Aker
Remove all of uchar. |
26 |
static int keys_compare(heap_rb_param *param, unsigned char *key1, unsigned char *key2); |
482
by Brian Aker
Remove uint. |
27 |
static void init_block(HP_BLOCK *block,uint32_t chunk_length, uint32_t min_records, |
291
by Brian Aker
Head ulong conversion. |
28 |
uint32_t max_records); |
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
29 |
|
481
by Brian Aker
Remove all of uchar. |
30 |
#define FIXED_REC_OVERHEAD (sizeof(unsigned char))
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937.2.14
by Stewart Smith
align HEAP data structure for dynamic tables to SPARC alignment boundary. |
31 |
#define VARIABLE_REC_OVERHEAD (sizeof(unsigned char**) + ALIGN_SIZE(sizeof(unsigned char)))
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660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
32 |
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244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
33 |
/* Minimum size that a chunk can take, 12 bytes on 32bit, 24 bytes on 64bit */
|
34 |
#define VARIABLE_MIN_CHUNK_SIZE \
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481
by Brian Aker
Remove all of uchar. |
35 |
((sizeof(unsigned char**) + VARIABLE_REC_OVERHEAD + sizeof(unsigned char**) - 1) & ~(sizeof(unsigned char**) - 1))
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244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
36 |
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1
by brian
clean slate |
37 |
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/* Create a heap table */
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39 |
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482
by Brian Aker
Remove uint. |
40 |
int heap_create(const char *name, uint32_t keys, HP_KEYDEF *keydef, |
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uint32_t columns, HP_COLUMNDEF *columndef, |
|
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uint32_t max_key_fieldnr, uint32_t key_part_size, |
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43 |
uint32_t reclength, uint32_t keys_memory_size, |
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291
by Brian Aker
Head ulong conversion. |
44 |
uint32_t max_records, uint32_t min_records, |
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
45 |
HP_CREATE_INFO *create_info, HP_SHARE **res) |
1
by brian
clean slate |
46 |
{
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482
by Brian Aker
Remove uint. |
47 |
uint32_t i, j, key_segs, max_length, length; |
291
by Brian Aker
Head ulong conversion. |
48 |
uint32_t max_rows_for_stated_memory; |
1
by brian
clean slate |
49 |
HP_SHARE *share= 0; |
50 |
HA_KEYSEG *keyseg; |
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51 |
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52 |
if (!create_info->internal_table) |
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{
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54 |
pthread_mutex_lock(&THR_LOCK_heap); |
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55 |
if ((share= hp_find_named_heap(name)) && share->open_count == 0) |
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56 |
{
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57 |
hp_free(share); |
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58 |
share= 0; |
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59 |
}
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660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
60 |
}
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1
by brian
clean slate |
61 |
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62 |
if (!share) |
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63 |
{
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942.1.11
by Monty Taylor
Fixed a coupla build things. |
64 |
size_t chunk_dataspace_length; |
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uint32_t chunk_length, is_variable_size; |
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482
by Brian Aker
Remove uint. |
66 |
uint32_t fixed_data_length, fixed_column_count; |
1
by brian
clean slate |
67 |
HP_KEYDEF *keyinfo; |
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
68 |
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69 |
if (create_info->max_chunk_size) |
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{
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482
by Brian Aker
Remove uint. |
71 |
uint32_t configured_chunk_size= create_info->max_chunk_size; |
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
72 |
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73 |
/* User requested variable-size records, let's see if they're possible */
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74 |
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75 |
if (configured_chunk_size < key_part_size) |
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{
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77 |
/* Eventual chunk_size cannot be smaller than key data,
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which allows all keys to fit into the first chunk */
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my_error(ER_CANT_USE_OPTION_HERE, MYF(0), "block_size"); |
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pthread_mutex_unlock(&THR_LOCK_heap); |
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return(ER_CANT_USE_OPTION_HERE); |
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}
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83 |
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84 |
if ((reclength - configured_chunk_size) >= VARIABLE_MIN_CHUNK_SIZE<<1) |
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{
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86 |
/* Allow variable size only if we're saving at least two smallest chunks */
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87 |
/* There has to be at least one field after indexed fields */
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88 |
/* Note that NULL bits are already included in key_part_size */
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is_variable_size= 1; |
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chunk_dataspace_length= configured_chunk_size; |
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}
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else
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{
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94 |
/* max_chunk_size is near the full reclength, let's use fixed size */
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is_variable_size= 0; |
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chunk_dataspace_length= reclength; |
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}
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}
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else if (create_info->is_dynamic) |
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{
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/* User asked for dynamic records - use 256 as the chunk size */
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if ((key_part_size + VARIABLE_REC_OVERHEAD) > 256) |
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chunk_dataspace_length= key_part_size; |
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else
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chunk_dataspace_length= 256 - VARIABLE_REC_OVERHEAD; |
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107 |
is_variable_size= 1; |
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}
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else
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{
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111 |
/* if max_chunk_size is not specified, put the whole record in one chunk */
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is_variable_size= 0; |
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chunk_dataspace_length= reclength; |
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}
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115 |
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116 |
if (is_variable_size) |
|
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{
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118 |
/* Check whether we have any variable size records past key data */
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482
by Brian Aker
Remove uint. |
119 |
uint32_t has_variable_fields= 0; |
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
120 |
|
121 |
fixed_data_length= key_part_size; |
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122 |
fixed_column_count= max_key_fieldnr; |
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123 |
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124 |
for (i= max_key_fieldnr; i < columns; i++) |
|
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{
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HP_COLUMNDEF* column= columndef + i; |
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127 |
if (column->type == DRIZZLE_TYPE_VARCHAR && column->length >= 32) |
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128 |
{
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129 |
/* The field has to be >= 5.0.3 true VARCHAR and have substantial length */
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130 |
/* TODO: do we want to calculate minimum length? */
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131 |
has_variable_fields= 1; |
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break; |
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133 |
}
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134 |
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135 |
if (has_variable_fields) |
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136 |
{
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137 |
break; |
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138 |
}
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139 |
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140 |
if ((column->offset + column->length) <= chunk_dataspace_length) |
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{
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142 |
/* Still no variable-size columns, add one fixed-length */
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fixed_column_count= i + 1; |
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144 |
fixed_data_length= column->offset + column->length; |
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}
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146 |
}
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147 |
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148 |
if (!has_variable_fields) |
|
149 |
{
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150 |
/* There is no need to use variable-size records without variable-size columns */
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151 |
/* Reset sizes if it's not variable size anymore */
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is_variable_size= 0; |
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153 |
chunk_dataspace_length= reclength; |
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154 |
fixed_data_length= reclength; |
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fixed_column_count= columns; |
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}
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157 |
}
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158 |
else
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159 |
{
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160 |
fixed_data_length= reclength; |
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fixed_column_count= columns; |
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}
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163 |
||
1
by brian
clean slate |
164 |
/*
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481
by Brian Aker
Remove all of uchar. |
165 |
We store unsigned char* del_link inside the data area of deleted records,
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166 |
so the data length should be at least sizeof(unsigned char*)
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1
by brian
clean slate |
167 |
*/
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481
by Brian Aker
Remove all of uchar. |
168 |
set_if_bigger(chunk_dataspace_length, sizeof (unsigned char**)); |
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
169 |
|
170 |
if (is_variable_size) |
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171 |
{
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172 |
chunk_length= chunk_dataspace_length + VARIABLE_REC_OVERHEAD; |
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173 |
}
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174 |
else
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175 |
{
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chunk_length= chunk_dataspace_length + FIXED_REC_OVERHEAD; |
|
177 |
}
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178 |
||
179 |
/* Align chunk length to the next pointer */
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481
by Brian Aker
Remove all of uchar. |
180 |
chunk_length= (uint) (chunk_length + sizeof(unsigned char**) - 1) & ~(sizeof(unsigned char**) - 1); |
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
181 |
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182 |
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660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
183 |
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1
by brian
clean slate |
184 |
for (i= key_segs= max_length= 0, keyinfo= keydef; i < keys; i++, keyinfo++) |
185 |
{
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212.6.8
by Mats Kindahl
Removing extreneous explicit casts for the heap storage engine. |
186 |
memset(&keyinfo->block, 0, sizeof(keyinfo->block)); |
187 |
memset(&keyinfo->rb_tree , 0, sizeof(keyinfo->rb_tree)); |
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1
by brian
clean slate |
188 |
for (j= length= 0; j < keyinfo->keysegs; j++) |
189 |
{
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190 |
length+= keyinfo->seg[j].length; |
|
191 |
if (keyinfo->seg[j].null_bit) |
|
192 |
{
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193 |
length++; |
|
194 |
if (!(keyinfo->flag & HA_NULL_ARE_EQUAL)) |
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195 |
keyinfo->flag|= HA_NULL_PART_KEY; |
|
196 |
if (keyinfo->algorithm == HA_KEY_ALG_BTREE) |
|
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keyinfo->rb_tree.size_of_element++; |
|
198 |
}
|
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199 |
switch (keyinfo->seg[j].type) { |
|
200 |
case HA_KEYTYPE_LONG_INT: |
|
201 |
case HA_KEYTYPE_DOUBLE: |
|
202 |
case HA_KEYTYPE_ULONG_INT: |
|
203 |
case HA_KEYTYPE_LONGLONG: |
|
204 |
case HA_KEYTYPE_ULONGLONG: |
|
205 |
case HA_KEYTYPE_UINT24: |
|
206 |
keyinfo->seg[j].flag|= HA_SWAP_KEY; |
|
207 |
break; |
|
208 |
case HA_KEYTYPE_VARBINARY1: |
|
209 |
/* Case-insensitiveness is handled in coll->hash_sort */
|
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210 |
keyinfo->seg[j].type= HA_KEYTYPE_VARTEXT1; |
|
211 |
/* fall_through */
|
|
212 |
case HA_KEYTYPE_VARTEXT1: |
|
213 |
keyinfo->flag|= HA_VAR_LENGTH_KEY; |
|
214 |
length+= 2; |
|
215 |
/* Save number of bytes used to store length */
|
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216 |
keyinfo->seg[j].bit_start= 1; |
|
217 |
break; |
|
218 |
case HA_KEYTYPE_VARBINARY2: |
|
219 |
/* Case-insensitiveness is handled in coll->hash_sort */
|
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220 |
/* fall_through */
|
|
221 |
case HA_KEYTYPE_VARTEXT2: |
|
222 |
keyinfo->flag|= HA_VAR_LENGTH_KEY; |
|
223 |
length+= 2; |
|
224 |
/* Save number of bytes used to store length */
|
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225 |
keyinfo->seg[j].bit_start= 2; |
|
226 |
/*
|
|
227 |
Make future comparison simpler by only having to check for
|
|
228 |
one type
|
|
229 |
*/
|
|
230 |
keyinfo->seg[j].type= HA_KEYTYPE_VARTEXT1; |
|
231 |
break; |
|
232 |
default: |
|
233 |
break; |
|
234 |
}
|
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235 |
}
|
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236 |
keyinfo->length= length; |
|
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
237 |
length+= keyinfo->rb_tree.size_of_element + |
481
by Brian Aker
Remove all of uchar. |
238 |
((keyinfo->algorithm == HA_KEY_ALG_BTREE) ? sizeof(unsigned char*) : 0); |
1
by brian
clean slate |
239 |
if (length > max_length) |
240 |
max_length= length; |
|
241 |
key_segs+= keyinfo->keysegs; |
|
242 |
if (keyinfo->algorithm == HA_KEY_ALG_BTREE) |
|
243 |
{
|
|
244 |
key_segs++; /* additional HA_KEYTYPE_END segment */ |
|
245 |
if (keyinfo->flag & HA_VAR_LENGTH_KEY) |
|
246 |
keyinfo->get_key_length= hp_rb_var_key_length; |
|
247 |
else if (keyinfo->flag & HA_NULL_PART_KEY) |
|
248 |
keyinfo->get_key_length= hp_rb_null_key_length; |
|
249 |
else
|
|
250 |
keyinfo->get_key_length= hp_rb_key_length; |
|
251 |
}
|
|
252 |
}
|
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910.4.1
by Stewart Smith
fix memory alignment issues in hp_create for sparc. |
253 |
share= NULL; |
254 |
if (!(share= (HP_SHARE*) malloc(sizeof(HP_SHARE)))) |
|
255 |
goto err; |
|
256 |
||
257 |
memset(share, 0, sizeof(HP_SHARE)); |
|
258 |
||
908.4.1
by Stewart Smith
valgrind warnings in hp_create: around memory allocation fixes for alignment done for sparc |
259 |
if (keys && !(share->keydef= (HP_KEYDEF*) malloc(keys*sizeof(HP_KEYDEF)))) |
910.4.1
by Stewart Smith
fix memory alignment issues in hp_create for sparc. |
260 |
goto err; |
261 |
||
262 |
memset(share->keydef, 0, keys*sizeof(HP_KEYDEF)); |
|
263 |
||
908.4.1
by Stewart Smith
valgrind warnings in hp_create: around memory allocation fixes for alignment done for sparc |
264 |
if (keys && !(share->keydef->seg= (HA_KEYSEG*) malloc(key_segs*sizeof(HA_KEYSEG)))) |
910.4.1
by Stewart Smith
fix memory alignment issues in hp_create for sparc. |
265 |
goto err; |
266 |
if (!(share->column_defs= (HP_COLUMNDEF*) |
|
267 |
malloc(columns*sizeof(HP_COLUMNDEF)))) |
|
268 |
goto err; |
|
269 |
||
270 |
memset(share->column_defs, 0, columns*sizeof(HP_COLUMNDEF)); |
|
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
271 |
|
272 |
/*
|
|
273 |
Max_records is used for estimating block sizes and for enforcement.
|
|
274 |
Calculate the very maximum number of rows (if everything was one chunk) and
|
|
275 |
then take either that value or configured max_records (pick smallest one)
|
|
276 |
*/
|
|
988.2.2
by Trond Norbye
size_t and uint64_t is not the same in 32 bit builds. Add explicit casting |
277 |
max_rows_for_stated_memory= (uint32_t)(create_info->max_table_size / |
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
278 |
(keys_memory_size + chunk_length)); |
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
279 |
max_records = ((max_records && max_records < max_rows_for_stated_memory) ? |
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
280 |
max_records : max_rows_for_stated_memory); |
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
281 |
|
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
282 |
memcpy(share->column_defs, columndef, (size_t) (sizeof(columndef[0]) * columns)); |
283 |
||
1
by brian
clean slate |
284 |
share->key_stat_version= 1; |
908.4.1
by Stewart Smith
valgrind warnings in hp_create: around memory allocation fixes for alignment done for sparc |
285 |
keyseg= keys ? share->keydef->seg : NULL; |
910.4.1
by Stewart Smith
fix memory alignment issues in hp_create for sparc. |
286 |
|
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
287 |
init_block(&share->recordspace.block, chunk_length, min_records, max_records); |
288 |
/* Fix keys */
|
|
1
by brian
clean slate |
289 |
memcpy(share->keydef, keydef, (size_t) (sizeof(keydef[0]) * keys)); |
290 |
for (i= 0, keyinfo= share->keydef; i < keys; i++, keyinfo++) |
|
291 |
{
|
|
292 |
keyinfo->seg= keyseg; |
|
293 |
memcpy(keyseg, keydef[i].seg, |
|
294 |
(size_t) (sizeof(keyseg[0]) * keydef[i].keysegs)); |
|
295 |
keyseg+= keydef[i].keysegs; |
|
296 |
||
297 |
if (keydef[i].algorithm == HA_KEY_ALG_BTREE) |
|
298 |
{
|
|
299 |
/* additional HA_KEYTYPE_END keyseg */
|
|
300 |
keyseg->type= HA_KEYTYPE_END; |
|
481
by Brian Aker
Remove all of uchar. |
301 |
keyseg->length= sizeof(unsigned char*); |
1
by brian
clean slate |
302 |
keyseg->flag= 0; |
303 |
keyseg->null_bit= 0; |
|
304 |
keyseg++; |
|
305 |
||
481
by Brian Aker
Remove all of uchar. |
306 |
init_tree(&keyinfo->rb_tree, 0, 0, sizeof(unsigned char*), |
1164
by Brian Aker
Small cleanup. |
307 |
(qsort_cmp2)keys_compare, true, NULL, NULL); |
1
by brian
clean slate |
308 |
keyinfo->delete_key= hp_rb_delete_key; |
309 |
keyinfo->write_key= hp_rb_write_key; |
|
310 |
}
|
|
311 |
else
|
|
312 |
{
|
|
313 |
init_block(&keyinfo->block, sizeof(HASH_INFO), min_records, |
|
314 |
max_records); |
|
315 |
keyinfo->delete_key= hp_delete_key; |
|
316 |
keyinfo->write_key= hp_write_key; |
|
317 |
keyinfo->hash_buckets= 0; |
|
318 |
}
|
|
319 |
if ((keyinfo->flag & HA_AUTO_KEY) && create_info->with_auto_increment) |
|
320 |
share->auto_key= i + 1; |
|
321 |
}
|
|
322 |
share->min_records= min_records; |
|
323 |
share->max_records= max_records; |
|
324 |
share->max_table_size= create_info->max_table_size; |
|
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
325 |
share->index_length= 0; |
1
by brian
clean slate |
326 |
share->blength= 1; |
327 |
share->keys= keys; |
|
328 |
share->max_key_length= max_length; |
|
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
329 |
share->column_count= columns; |
1
by brian
clean slate |
330 |
share->changed= 0; |
331 |
share->auto_key= create_info->auto_key; |
|
332 |
share->auto_key_type= create_info->auto_key_type; |
|
333 |
share->auto_increment= create_info->auto_increment; |
|
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
334 |
|
335 |
share->fixed_data_length= fixed_data_length; |
|
336 |
share->fixed_column_count= fixed_column_count; |
|
337 |
||
338 |
share->recordspace.chunk_length= chunk_length; |
|
339 |
share->recordspace.chunk_dataspace_length= chunk_dataspace_length; |
|
340 |
share->recordspace.is_variable_size= is_variable_size; |
|
341 |
share->recordspace.total_data_length= 0; |
|
342 |
||
343 |
if (is_variable_size) { |
|
344 |
share->recordspace.offset_link= chunk_dataspace_length; |
|
481
by Brian Aker
Remove all of uchar. |
345 |
share->recordspace.offset_status= share->recordspace.offset_link + sizeof(unsigned char**); |
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
346 |
} else { |
347 |
share->recordspace.offset_link= 1<<22; /* Make it likely to fail if anyone uses this offset */ |
|
348 |
share->recordspace.offset_status= chunk_dataspace_length; |
|
349 |
}
|
|
350 |
||
1
by brian
clean slate |
351 |
/* Must be allocated separately for rename to work */
|
656.1.25
by Monty Taylor
Removed my_malloc stuff from storage/ |
352 |
if (!(share->name= strdup(name))) |
1
by brian
clean slate |
353 |
{
|
354 |
goto err; |
|
355 |
}
|
|
356 |
thr_lock_init(&share->lock); |
|
398.1.10
by Monty Taylor
Actually removed VOID() this time. |
357 |
pthread_mutex_init(&share->intern_lock,MY_MUTEX_INIT_FAST); |
1
by brian
clean slate |
358 |
if (!create_info->internal_table) |
359 |
{
|
|
916.1.26
by Padraig O'Sullivan
Initial work on removing LIST from the heap storage engine. |
360 |
heap_share_list.push_front(share); |
1
by brian
clean slate |
361 |
}
|
362 |
else
|
|
363 |
share->delete_on_close= 1; |
|
364 |
}
|
|
365 |
if (!create_info->internal_table) |
|
366 |
pthread_mutex_unlock(&THR_LOCK_heap); |
|
367 |
||
368 |
*res= share; |
|
51.3.1
by Jay Pipes
Removed all DBUG symbols from heap storage engine |
369 |
return(0); |
1
by brian
clean slate |
370 |
|
371 |
err: |
|
910.4.1
by Stewart Smith
fix memory alignment issues in hp_create for sparc. |
372 |
if(share && share->keydef && share->keydef->seg) |
373 |
free(share->keydef->seg); |
|
374 |
if(share && share->keydef) |
|
375 |
free(share->keydef); |
|
376 |
if(share && share->column_defs) |
|
377 |
free(share->column_defs); |
|
378 |
if(share) |
|
379 |
free(share); |
|
1
by brian
clean slate |
380 |
if (!create_info->internal_table) |
381 |
pthread_mutex_unlock(&THR_LOCK_heap); |
|
51.3.1
by Jay Pipes
Removed all DBUG symbols from heap storage engine |
382 |
return(1); |
1
by brian
clean slate |
383 |
} /* heap_create */ |
384 |
||
385 |
||
481
by Brian Aker
Remove all of uchar. |
386 |
static int keys_compare(heap_rb_param *param, unsigned char *key1, unsigned char *key2) |
1
by brian
clean slate |
387 |
{
|
482
by Brian Aker
Remove uint. |
388 |
uint32_t not_used[2]; |
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
389 |
return ha_key_cmp(param->keyseg, key1, key2, param->key_length, |
1
by brian
clean slate |
390 |
param->search_flag, not_used); |
391 |
}
|
|
392 |
||
482
by Brian Aker
Remove uint. |
393 |
static void init_block(HP_BLOCK *block, uint32_t chunk_length, uint32_t min_records, |
291
by Brian Aker
Head ulong conversion. |
394 |
uint32_t max_records) |
1
by brian
clean slate |
395 |
{
|
482
by Brian Aker
Remove uint. |
396 |
uint32_t i,recbuffer,records_in_block; |
1
by brian
clean slate |
397 |
|
1067.4.8
by Nathan Williams
Converted all usages of cmin/cmax in plugin directory to std::min/max. |
398 |
max_records= max(min_records,max_records); |
1
by brian
clean slate |
399 |
if (!max_records) |
400 |
max_records= 1000; /* As good as quess as anything */ |
|
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
401 |
|
244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
402 |
/* we want to start each chunk at 8 bytes boundary, round recbuffer to the next 8 */
|
660.1.3
by Eric Herman
removed trailing whitespace with simple script: |
403 |
recbuffer= (uint) (chunk_length + sizeof(unsigned char**) - 1) & ~(sizeof(unsigned char**) - 1); |
1
by brian
clean slate |
404 |
records_in_block= max_records / 10; |
405 |
if (records_in_block < 10 && max_records) |
|
406 |
records_in_block= 10; |
|
407 |
if (!records_in_block || records_in_block*recbuffer > |
|
408 |
(my_default_record_cache_size-sizeof(HP_PTRS)*HP_MAX_LEVELS)) |
|
409 |
records_in_block= (my_default_record_cache_size - sizeof(HP_PTRS) * |
|
410 |
HP_MAX_LEVELS) / recbuffer + 1; |
|
411 |
block->records_in_block= records_in_block; |
|
412 |
block->recbuffer= recbuffer; |
|
413 |
block->last_allocated= 0L; |
|
414 |
||
415 |
for (i= 0; i <= HP_MAX_LEVELS; i++) |
|
416 |
block->level_info[i].records_under_level= |
|
417 |
(!i ? 1 : i == 1 ? records_in_block : |
|
418 |
HP_PTRS_IN_NOD * block->level_info[i - 1].records_under_level); |
|
419 |
}
|
|
420 |
||
421 |
||
422 |
static inline void heap_try_free(HP_SHARE *share) |
|
423 |
{
|
|
424 |
if (share->open_count == 0) |
|
425 |
hp_free(share); |
|
426 |
else
|
|
427 |
share->delete_on_close= 1; |
|
428 |
}
|
|
429 |
||
430 |
||
431 |
int heap_delete_table(const char *name) |
|
432 |
{
|
|
433 |
int result; |
|
434 |
register HP_SHARE *share; |
|
435 |
||
436 |
pthread_mutex_lock(&THR_LOCK_heap); |
|
437 |
if ((share= hp_find_named_heap(name))) |
|
438 |
{
|
|
439 |
heap_try_free(share); |
|
440 |
result= 0; |
|
441 |
}
|
|
442 |
else
|
|
443 |
{
|
|
444 |
result= my_errno=ENOENT; |
|
445 |
}
|
|
446 |
pthread_mutex_unlock(&THR_LOCK_heap); |
|
51.3.1
by Jay Pipes
Removed all DBUG symbols from heap storage engine |
447 |
return(result); |
1
by brian
clean slate |
448 |
}
|
449 |
||
450 |
||
451 |
void heap_drop_table(HP_INFO *info) |
|
452 |
{
|
|
453 |
pthread_mutex_lock(&THR_LOCK_heap); |
|
454 |
heap_try_free(info->s); |
|
455 |
pthread_mutex_unlock(&THR_LOCK_heap); |
|
51.3.1
by Jay Pipes
Removed all DBUG symbols from heap storage engine |
456 |
return; |
1
by brian
clean slate |
457 |
}
|
458 |
||
459 |
||
460 |
void hp_free(HP_SHARE *share) |
|
461 |
{
|
|
916.1.26
by Padraig O'Sullivan
Initial work on removing LIST from the heap storage engine. |
462 |
heap_share_list.remove(share); /* If not internal table */ |
1
by brian
clean slate |
463 |
hp_clear(share); /* Remove blocks from memory */ |
464 |
thr_lock_delete(&share->lock); |
|
398.1.10
by Monty Taylor
Actually removed VOID() this time. |
465 |
pthread_mutex_destroy(&share->intern_lock); |
1106.2.1
by Stewart Smith
correct conditional free() on parts of HEAP share. fixes valgrind leak warnings |
466 |
if (share->keydef && share->keydef->seg) |
908.4.1
by Stewart Smith
valgrind warnings in hp_create: around memory allocation fixes for alignment done for sparc |
467 |
free(share->keydef->seg); |
1106.2.1
by Stewart Smith
correct conditional free() on parts of HEAP share. fixes valgrind leak warnings |
468 |
if (share->keydef) |
908.4.1
by Stewart Smith
valgrind warnings in hp_create: around memory allocation fixes for alignment done for sparc |
469 |
free(share->keydef); |
910.4.1
by Stewart Smith
fix memory alignment issues in hp_create for sparc. |
470 |
free(share->column_defs); |
481
by Brian Aker
Remove all of uchar. |
471 |
free((unsigned char*) share->name); |
472 |
free((unsigned char*) share); |
|
1
by brian
clean slate |
473 |
return; |
474 |
}
|