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drwxr-xr-x
2021-09-23 12:07
authors.h
9.59
KB
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2021-08-02 06:58
bounded_queue.h
6.58
KB
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2021-08-02 06:58
client_settings.h
1.89
KB
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2021-08-02 06:58
compat56.h
1.95
KB
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2021-08-02 06:58
config.h
14.22
KB
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2021-08-09 09:53
contributors.h
2.76
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2021-08-02 06:58
create_options.h
4.26
KB
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2021-08-02 06:58
custom_conf.h
1.06
KB
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2021-08-02 06:58
datadict.h
1.65
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2021-08-02 06:58
debug_sync.h
1.71
KB
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2021-08-02 06:58
derror.h
980
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2021-08-02 06:58
des_key_file.h
1.21
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2021-08-02 06:58
discover.h
1.51
KB
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2021-08-02 06:58
dur_prop.h
1.06
KB
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2021-08-02 06:58
embedded_priv.h
1.47
KB
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2021-08-02 06:58
event_data_objects.h
3.92
KB
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2021-08-02 06:58
event_db_repository.h
3.55
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2021-08-02 06:58
event_parse_data.h
2.83
KB
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2021-08-02 06:58
event_queue.h
3.36
KB
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2021-08-02 06:58
event_scheduler.h
3.21
KB
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2021-08-02 06:58
events.h
4.54
KB
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2021-08-02 06:58
field.h
172.36
KB
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2021-08-02 06:58
field_comp.h
1.15
KB
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2021-08-02 06:58
filesort.h
4.57
KB
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2021-08-02 06:58
filesort_utils.h
3.98
KB
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2021-08-02 06:58
ft_global.h
2.97
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2021-08-02 06:58
gcalc_slicescan.h
16.86
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2021-08-02 06:58
gcalc_tools.h
11.38
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2021-08-02 06:58
group_by_handler.h
3.08
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2021-08-02 06:58
gstream.h
2.38
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2021-08-02 06:58
ha_partition.h
61.07
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2021-08-02 06:58
ha_sequence.h
5.54
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2021-08-02 06:58
handler.h
172.59
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2021-08-02 06:58
hash.h
4.33
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2021-08-02 06:58
hash_filo.h
5.4
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2021-08-02 06:58
heap.h
9.23
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2021-08-02 06:58
hostname.h
5.29
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2021-08-02 06:58
ilist.h
6.38
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2021-08-02 06:58
init.h
894
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2021-08-02 06:58
innodb_priv.h
1.39
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2021-08-02 06:58
item.h
218.12
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2021-08-02 06:58
item_cmpfunc.h
116.7
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2021-08-02 06:58
item_create.h
7.62
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2021-08-02 06:58
item_func.h
98.35
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2021-08-02 06:58
item_geofunc.h
28.54
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2021-08-02 06:58
item_inetfunc.h
7.47
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2021-08-02 06:58
item_jsonfunc.h
12.65
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2021-08-02 06:58
item_row.h
4.43
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2021-08-02 06:58
item_strfunc.h
53.01
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2021-08-02 06:58
item_subselect.h
51.09
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2021-08-02 06:58
item_sum.h
61.51
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2021-08-02 06:58
item_timefunc.h
41.85
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2021-08-02 06:58
item_vers.h
3.62
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2021-08-02 06:58
item_windowfunc.h
30.02
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2021-08-02 06:58
item_xmlfunc.h
3.37
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2021-08-02 06:58
key.h
2
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2021-08-02 06:58
keycaches.h
1.95
KB
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2021-08-02 06:58
lex.h
28.49
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2021-08-09 09:49
lex_hash.h
138.24
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2021-08-09 09:53
lex_string.h
1.92
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2021-08-02 06:58
lex_symbol.h
1.29
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2021-08-02 06:58
lex_token.h
41.21
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2021-08-09 09:53
lf.h
6.23
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2021-08-02 06:58
lock.h
2.16
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2021-08-02 06:58
log.h
42.62
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2021-08-02 06:58
log_event.h
159.16
KB
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2021-08-02 06:58
log_event_old.h
19.2
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2021-08-02 06:58
log_slow.h
1.98
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2021-08-02 06:58
maria.h
17.3
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2021-08-02 06:58
mariadb.h
1.25
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2021-08-02 06:58
mdl.h
33.06
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2021-08-02 06:58
mem_root_array.h
6.77
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2021-08-02 06:58
message.h
2.06
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2021-08-02 06:58
multi_range_read.h
22.22
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2021-08-02 06:58
my_alarm.h
2.24
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2021-08-02 06:58
my_apc.h
4.61
KB
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2021-08-02 06:58
my_atomic.h
8.02
KB
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2021-08-02 06:58
my_base.h
25.62
KB
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2021-08-02 06:58
my_bit.h
3.13
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2021-08-02 06:58
my_bitmap.h
6.07
KB
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2021-08-02 06:58
my_check_opt.h
2.56
KB
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2021-08-02 06:58
my_compare.h
5.37
KB
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2021-08-02 06:58
my_context.h
6.51
KB
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2021-08-02 06:58
my_cpu.h
3.68
KB
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2021-08-02 06:58
my_crypt.h
904
B
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2021-08-02 06:58
my_decimal.h
12.58
KB
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2021-08-02 06:58
my_default.h
2.47
KB
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2021-08-02 06:58
my_handler_errors.h
4.59
KB
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2021-08-02 06:58
my_json_writer.h
4.96
KB
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2021-08-02 06:58
my_libwrap.h
1.16
KB
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2021-08-02 06:58
my_md5.h
1.45
KB
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2021-08-02 06:58
my_nosys.h
1.4
KB
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2021-08-02 06:58
my_rdtsc.h
3.87
KB
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2021-08-02 06:58
my_rnd.h
1.04
KB
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2021-08-02 06:58
my_service_manager.h
1.47
KB
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2021-08-02 06:58
my_stacktrace.h
2.99
KB
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2021-08-02 06:58
my_time.h
8.59
KB
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2021-08-02 06:58
my_tree.h
3.9
KB
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2021-08-02 06:58
my_uctype.h
67.9
KB
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2021-08-02 06:58
my_user.h
1.1
KB
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2021-08-02 06:58
myisam.h
16.86
KB
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2021-08-02 06:58
myisamchk.h
4.73
KB
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2021-08-02 06:58
myisammrg.h
4.66
KB
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2021-08-02 06:58
myisampack.h
14.58
KB
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2021-08-02 06:58
mysql_async.h
1.77
KB
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2021-08-02 06:58
mysqld.h
32.39
KB
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2021-08-09 09:49
mysqld_default_groups.h
169
B
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2021-08-02 06:58
mysqld_suffix.h
1.17
KB
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2021-08-02 06:58
mysys_err.h
2.81
KB
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2021-08-02 06:58
nt_servc.h
2.94
KB
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2021-08-02 06:58
opt_range.h
54.53
KB
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2021-08-02 06:58
opt_subselect.h
13.8
KB
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2021-08-02 06:58
parse_file.h
4.09
KB
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2021-08-02 06:58
partition_element.h
4.98
KB
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2021-08-02 06:58
partition_info.h
16.61
KB
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2021-08-02 06:58
password.h
1.14
KB
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2021-08-02 06:58
pcre.h
30.97
KB
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2021-08-09 09:51
probes_mysql.h
973
B
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2021-08-02 06:58
probes_mysql_dtrace.h
32.23
KB
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2021-08-09 09:53
probes_mysql_nodtrace.h
4.89
KB
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2021-08-09 09:53
procedure.h
5.64
KB
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2021-08-02 06:58
protocol.h
9.72
KB
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2021-08-02 06:58
proxy_protocol.h
548
B
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2021-08-02 06:58
queues.h
3.46
KB
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2021-08-02 06:58
records.h
2.93
KB
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2021-08-02 06:58
repl_failsafe.h
1.69
KB
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2021-08-02 06:58
replication.h
15.73
KB
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2021-08-02 06:58
rijndael.h
1.67
KB
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2021-08-02 06:58
rpl_constants.h
3.28
KB
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2021-08-02 06:58
rpl_filter.h
4.41
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2021-08-02 06:58
rpl_gtid.h
12.91
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2021-08-02 06:58
rpl_injector.h
9.4
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2021-08-02 06:58
rpl_mi.h
13.38
KB
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2021-08-02 06:58
rpl_parallel.h
13.32
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2021-08-02 06:58
rpl_record.h
1.55
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2021-08-02 06:58
rpl_record_old.h
1.37
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2021-08-02 06:58
rpl_reporting.h
2.96
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2021-08-02 06:58
rpl_rli.h
31.91
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2021-08-02 06:58
rpl_tblmap.h
3.1
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2021-08-02 06:58
rpl_utility.h
9.32
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2021-08-02 06:58
scheduler.h
3.4
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2021-08-02 06:58
semisync.h
2.23
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2021-08-02 06:58
semisync_master.h
21.49
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2021-08-02 06:58
semisync_master_ack_receiver.h
5.73
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2021-08-02 06:58
semisync_slave.h
3.44
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2021-08-02 06:58
service_versions.h
1.82
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2021-08-02 06:58
session_tracker.h
12.8
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2021-08-02 06:58
set_var.h
15.37
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2021-08-02 06:58
slave.h
11.51
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2021-08-02 06:58
source_revision.h
67
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2021-08-02 06:59
sp.h
21.84
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2021-08-02 06:58
sp_cache.h
2
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2021-08-02 06:58
sp_head.h
57.9
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2021-08-02 06:58
sp_pcontext.h
23.65
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2021-08-02 06:58
sp_rcontext.h
14
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2021-08-02 06:58
span.h
3.83
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2021-08-02 06:58
spatial.h
20.68
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2021-08-02 06:58
sql_acl.h
17.79
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2021-08-02 06:58
sql_admin.h
2.69
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2021-08-02 06:58
sql_alloc.h
1.88
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2021-08-02 06:58
sql_alter.h
11.5
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2021-08-02 06:58
sql_analyse.h
10.91
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2021-08-02 06:58
sql_analyze_stmt.h
7.61
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2021-08-02 06:58
sql_array.h
6.05
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2021-08-02 06:58
sql_audit.h
13.55
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2021-08-02 06:58
sql_base.h
24.82
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2021-08-02 06:58
sql_basic_types.h
951
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2021-08-02 06:58
sql_binlog.h
895
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2021-08-02 06:58
sql_bitmap.h
7.22
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2021-08-02 06:58
sql_bootstrap.h
1.63
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2021-08-02 06:58
sql_cache.h
21.09
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2021-08-02 06:58
sql_callback.h
1.51
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2021-08-02 06:58
sql_class.h
216.88
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2021-08-02 06:58
sql_cmd.h
8.59
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2021-08-09 09:49
sql_connect.h
3.72
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2021-08-02 06:58
sql_const.h
10.67
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2021-08-02 06:58
sql_crypt.h
1.39
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2021-08-02 06:58
sql_cte.h
15.47
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2021-08-02 06:58
sql_cursor.h
2.18
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2021-08-02 06:58
sql_db.h
2.16
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2021-08-02 06:58
sql_delete.h
1.37
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2021-08-02 06:58
sql_derived.h
1.13
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2021-08-02 06:58
sql_digest.h
3.73
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2021-08-02 06:58
sql_digest_stream.h
1.53
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2021-08-02 06:58
sql_do.h
954
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2021-08-02 06:58
sql_error.h
36.51
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2021-08-02 06:58
sql_explain.h
24.83
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2021-08-02 06:58
sql_expression_cache.h
4.1
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2021-08-02 06:58
sql_get_diagnostics.h
7.66
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2021-08-02 06:58
sql_handler.h
2.8
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2021-08-02 06:58
sql_help.h
920
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2021-08-02 06:58
sql_hset.h
3.17
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2021-08-02 06:58
sql_insert.h
2.1
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2021-08-02 06:58
sql_join_cache.h
46.88
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2021-08-02 06:58
sql_lex.h
139.04
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2021-08-02 06:58
sql_lifo_buffer.h
9.25
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2021-08-02 06:58
sql_list.h
20.18
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2021-08-02 06:58
sql_load.h
1.25
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2021-08-02 06:58
sql_locale.h
2.61
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2021-08-02 06:58
sql_manager.h
960
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2021-08-02 06:58
sql_mode.h
6.57
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2021-08-02 06:58
sql_parse.h
8.17
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2021-08-02 06:58
sql_partition.h
12.31
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2021-08-02 06:58
sql_partition_admin.h
5.68
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2021-08-02 06:58
sql_plist.h
7.55
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2021-08-02 06:58
sql_plugin.h
7.4
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2021-08-02 06:58
sql_plugin_compat.h
2.18
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2021-08-02 06:58
sql_prepare.h
10.99
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2021-08-02 06:58
sql_priv.h
16.22
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2021-08-02 06:58
sql_profile.h
7.39
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2021-08-02 06:58
sql_reload.h
1.01
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2021-08-02 06:58
sql_rename.h
941
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2021-08-02 06:58
sql_repl.h
3.24
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2021-08-02 06:58
sql_schema.h
2.42
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2021-08-02 06:58
sql_select.h
81.93
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2021-08-02 06:58
sql_sequence.h
4.94
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2021-08-02 06:58
sql_servers.h
1.74
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2021-08-02 06:58
sql_show.h
9.11
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2021-08-02 06:58
sql_signal.h
3.26
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2021-08-02 06:58
sql_sort.h
4.12
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2021-08-02 06:58
sql_statistics.h
11.14
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2021-08-02 06:58
sql_string.h
23.68
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2021-08-02 06:58
sql_table.h
11.06
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2021-08-02 06:58
sql_tablespace.h
956
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2021-08-02 06:58
sql_test.h
1.45
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2021-08-02 06:58
sql_time.h
10.45
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Save
Rename
#ifndef SQL_STRING_INCLUDED #define SQL_STRING_INCLUDED /* Copyright (c) 2000, 2013, Oracle and/or its affiliates. Copyright (c) 2008, 2020, MariaDB Corporation. 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */ /* This file is originally from the mysql distribution. Coded by monty */ #ifdef USE_PRAGMA_INTERFACE #pragma interface /* gcc class implementation */ #endif #include "m_ctype.h" /* my_charset_bin */ #include <my_sys.h> /* alloc_root, my_free, my_realloc */ #include "m_string.h" /* TRASH */ #include "sql_list.h" class String; typedef struct st_io_cache IO_CACHE; typedef struct st_mem_root MEM_ROOT; #include "pack.h" int sortcmp(const String *a,const String *b, CHARSET_INFO *cs); String *copy_if_not_alloced(String *a,String *b,uint32 arg_length); inline uint32 copy_and_convert(char *to, size_t to_length, CHARSET_INFO *to_cs, const char *from, size_t from_length, CHARSET_INFO *from_cs, uint *errors) { return my_convert(to, (uint)to_length, to_cs, from, (uint)from_length, from_cs, errors); } class String_copy_status: protected MY_STRCOPY_STATUS { public: const char *source_end_pos() const { return m_source_end_pos; } const char *well_formed_error_pos() const { return m_well_formed_error_pos; } }; class Well_formed_prefix_status: public String_copy_status { public: Well_formed_prefix_status(CHARSET_INFO *cs, const char *str, const char *end, size_t nchars) { cs->cset->well_formed_char_length(cs, str, end, nchars, this); } }; class Well_formed_prefix: public Well_formed_prefix_status { const char *m_str; // The beginning of the string public: Well_formed_prefix(CHARSET_INFO *cs, const char *str, const char *end, size_t nchars) :Well_formed_prefix_status(cs, str, end, nchars), m_str(str) { } Well_formed_prefix(CHARSET_INFO *cs, const char *str, size_t length, size_t nchars) :Well_formed_prefix_status(cs, str, str + length, nchars), m_str(str) { } Well_formed_prefix(CHARSET_INFO *cs, const char *str, size_t length) :Well_formed_prefix_status(cs, str, str + length, length), m_str(str) { } Well_formed_prefix(CHARSET_INFO *cs, LEX_CSTRING str, size_t nchars) :Well_formed_prefix_status(cs, str.str, str.str + str.length, nchars), m_str(str.str) { } size_t length() const { return m_source_end_pos - m_str; } }; class String_copier: public String_copy_status, protected MY_STRCONV_STATUS { public: const char *cannot_convert_error_pos() const { return m_cannot_convert_error_pos; } const char *most_important_error_pos() const { return well_formed_error_pos() ? well_formed_error_pos() : cannot_convert_error_pos(); } /* Convert a string between character sets. "dstcs" and "srccs" cannot be &my_charset_bin. */ size_t convert_fix(CHARSET_INFO *dstcs, char *dst, size_t dst_length, CHARSET_INFO *srccs, const char *src, size_t src_length, size_t nchars) { return my_convert_fix(dstcs, dst, dst_length, srccs, src, src_length, nchars, this, this); } /* Copy a string. Fix bad bytes/characters to '?'. */ uint well_formed_copy(CHARSET_INFO *to_cs, char *to, size_t to_length, CHARSET_INFO *from_cs, const char *from, size_t from_length, size_t nchars); // Same as above, but without the "nchars" limit. uint well_formed_copy(CHARSET_INFO *to_cs, char *to, size_t to_length, CHARSET_INFO *from_cs, const char *from, size_t from_length) { return well_formed_copy(to_cs, to, to_length, from_cs, from, from_length, from_length /* No limit on "nchars"*/); } }; size_t my_copy_with_hex_escaping(CHARSET_INFO *cs, char *dst, size_t dstlen, const char *src, size_t srclen); uint convert_to_printable(char *to, size_t to_len, const char *from, size_t from_len, CHARSET_INFO *from_cs, size_t nbytes= 0); class Charset { CHARSET_INFO *m_charset; public: Charset() :m_charset(&my_charset_bin) { } Charset(CHARSET_INFO *cs) :m_charset(cs) { } CHARSET_INFO *charset() const { return m_charset; } /* Collation name without the character set name. For example, in case of "latin1_swedish_ci", this method returns "_swedish_ci". */ LEX_CSTRING collation_specific_name() const; bool encoding_allows_reinterpret_as(CHARSET_INFO *cs) const; bool eq_collation_specific_names(CHARSET_INFO *cs) const; }; class String : public Sql_alloc { char *Ptr; uint32 str_length,Alloced_length, extra_alloc; bool alloced,thread_specific; CHARSET_INFO *str_charset; public: String() { Ptr=0; str_length=Alloced_length=extra_alloc=0; alloced= thread_specific= 0; str_charset= &my_charset_bin; } String(size_t length_arg) { alloced= thread_specific= 0; Alloced_length= extra_alloc= 0; (void) real_alloc(length_arg); str_charset= &my_charset_bin; } String(const char *str, CHARSET_INFO *cs) { Ptr=(char*) str; str_length= (uint32) strlen(str); Alloced_length= extra_alloc= 0; alloced= thread_specific= 0; str_charset=cs; } /* NOTE: If one intend to use the c_ptr() method, the following two contructors need the size of memory for STR to be at least LEN+1 (to make room for zero termination). */ String(const char *str,size_t len, CHARSET_INFO *cs) { Ptr=(char*) str; str_length=(uint32)len; Alloced_length= extra_alloc=0; alloced= thread_specific= 0; str_charset=cs; } String(char *str,size_t len, CHARSET_INFO *cs) { Ptr=(char*) str; Alloced_length=str_length=(uint32)len; extra_alloc= 0; alloced= thread_specific= 0; str_charset=cs; } String(const String &str) { Ptr=str.Ptr ; str_length=str.str_length ; Alloced_length=str.Alloced_length; extra_alloc= 0; alloced= thread_specific= 0; str_charset=str.str_charset; } ~String() { free(); } /* Mark variable thread specific it it's not allocated already */ inline void set_thread_specific() { if (!alloced) thread_specific= 1; } inline void set_charset(CHARSET_INFO *charset_arg) { str_charset= charset_arg; } inline CHARSET_INFO *charset() const { return str_charset; } inline uint32 length() const { return str_length;} inline uint32 alloced_length() const { return Alloced_length;} inline uint32 extra_allocation() const { return extra_alloc;} inline char& operator [] (size_t i) const { return Ptr[i]; } inline void length(size_t len) { str_length=(uint32)len ; } inline void extra_allocation(size_t len) { extra_alloc= (uint32)len; } inline bool is_empty() const { return (str_length == 0); } inline void mark_as_const() { Alloced_length= 0;} inline const char *ptr() const { return Ptr; } inline const char *end() const { return Ptr + str_length; } inline char *c_ptr() { DBUG_ASSERT(!alloced || !Ptr || !Alloced_length || (Alloced_length >= (str_length + 1))); if (!Ptr || Ptr[str_length]) /* Should be safe */ (void) realloc(str_length); return Ptr; } inline char *c_ptr_quick() { if (Ptr && str_length < Alloced_length) Ptr[str_length]=0; return Ptr; } inline char *c_ptr_safe() { if (Ptr && str_length < Alloced_length) Ptr[str_length]=0; else (void) realloc(str_length); return Ptr; } LEX_STRING lex_string() const { LEX_STRING str = { (char*) ptr(), length() }; return str; } LEX_CSTRING lex_cstring() const { LEX_CSTRING skr = { ptr(), length() }; return skr; } size_t lengthsp() const { return str_charset->cset->lengthsp(str_charset, Ptr, str_length); } void set(String &str,size_t offset,size_t arg_length) { DBUG_ASSERT(&str != this); free(); Ptr=(char*) str.ptr()+offset; str_length=(uint32)arg_length; if (str.Alloced_length) Alloced_length=(uint32)(str.Alloced_length-offset); str_charset=str.str_charset; } /** Points the internal buffer to the supplied one. The old buffer is freed. @param str Pointer to the new buffer. @param arg_length Length of the new buffer in characters, excluding any null character. @param cs Character set to use for interpreting string data. @note The new buffer will not be null terminated. */ inline void set(char *str,size_t arg_length, CHARSET_INFO *cs) { free(); Ptr=(char*) str; str_length=Alloced_length=(uint32)arg_length; str_charset=cs; } inline void set(const char *str,size_t arg_length, CHARSET_INFO *cs) { free(); Ptr=(char*) str; str_length=(uint32)arg_length; str_charset=cs; } bool set_ascii(const char *str, size_t arg_length); inline void set_quick(char *str,size_t arg_length, CHARSET_INFO *cs) { if (!alloced) { Ptr=(char*) str; str_length=Alloced_length=(uint32)arg_length; } str_charset=cs; } bool set_int(longlong num, bool unsigned_flag, CHARSET_INFO *cs); bool set(int num, CHARSET_INFO *cs) { return set_int(num, false, cs); } bool set(uint num, CHARSET_INFO *cs) { return set_int(num, true, cs); } bool set(long num, CHARSET_INFO *cs) { return set_int(num, false, cs); } bool set(ulong num, CHARSET_INFO *cs) { return set_int(num, true, cs); } bool set(longlong num, CHARSET_INFO *cs) { return set_int(num, false, cs); } bool set(ulonglong num, CHARSET_INFO *cs) { return set_int((longlong)num, true, cs); } bool set_real(double num,uint decimals, CHARSET_INFO *cs); bool set_hex(ulonglong num); bool set_hex(const char *str, uint32 len); /* Take over handling of buffer from some other object */ void reset(char *ptr_arg, size_t length_arg, size_t alloced_length_arg, CHARSET_INFO *cs) { free(); Ptr= ptr_arg; str_length= (uint32)length_arg; Alloced_length= (uint32)alloced_length_arg; str_charset= cs; alloced= ptr_arg != 0; } /* Forget about the buffer, let some other object handle it */ char *release() { char *old= Ptr; Ptr=0; str_length= Alloced_length= extra_alloc= 0; alloced= thread_specific= 0; return old; } /* PMG 2004.11.12 This is a method that works the same as perl's "chop". It simply drops the last character of a string. This is useful in the case of the federated storage handler where I'm building a unknown number, list of values and fields to be used in a sql insert statement to be run on the remote server, and have a comma after each. When the list is complete, I "chop" off the trailing comma ex. String stringobj; stringobj.append("VALUES ('foo', 'fi', 'fo',"); stringobj.chop(); stringobj.append(")"); In this case, the value of string was: VALUES ('foo', 'fi', 'fo', VALUES ('foo', 'fi', 'fo' VALUES ('foo', 'fi', 'fo') */ inline void chop() { str_length--; Ptr[str_length]= '\0'; DBUG_ASSERT(strlen(Ptr) == str_length); } inline void free() { if (alloced) { alloced=0; my_free(Ptr); } Alloced_length= extra_alloc= 0; Ptr=0; str_length=0; /* Safety */ } inline bool alloc(size_t arg_length) { if (arg_length < Alloced_length) return 0; return real_alloc(arg_length); } bool real_alloc(size_t arg_length); // Empties old string bool realloc_raw(size_t arg_length); bool realloc(size_t arg_length) { if (realloc_raw(arg_length)) return TRUE; Ptr[arg_length]=0; // This make other funcs shorter return FALSE; } bool realloc_with_extra(size_t arg_length) { if (extra_alloc < 4096) extra_alloc= extra_alloc*2+128; if (realloc_raw(arg_length + extra_alloc)) return TRUE; Ptr[arg_length]=0; // This make other funcs shorter return FALSE; } bool realloc_with_extra_if_needed(size_t arg_length) { if (arg_length < Alloced_length) { Ptr[arg_length]=0; // behave as if realloc was called. return 0; } return realloc_with_extra(arg_length); } // Shrink the buffer, but only if it is allocated on the heap. inline void shrink(size_t arg_length) { if (!is_alloced()) return; if (ALIGN_SIZE(arg_length+1) < Alloced_length) { char *new_ptr; if (unlikely(!(new_ptr=(char*) my_realloc(Ptr, arg_length,MYF((thread_specific ? MY_THREAD_SPECIFIC : 0)))))) { Alloced_length = 0; real_alloc(arg_length); } else { Ptr=new_ptr; Alloced_length=(uint32)arg_length; } } } bool is_alloced() const { return alloced; } inline String& operator = (const String &s) { if (&s != this) { /* It is forbidden to do assignments like some_string = substring_of_that_string */ DBUG_ASSERT(!s.uses_buffer_owned_by(this)); free(); Ptr=s.Ptr ; str_length=s.str_length ; Alloced_length=s.Alloced_length; str_charset=s.str_charset; } return *this; } bool copy(); // Alloc string if not alloced bool copy(const String &s); // Allocate new string bool copy(const char *s,size_t arg_length, CHARSET_INFO *cs); // Allocate new string bool copy_or_move(const char *s,size_t arg_length, CHARSET_INFO *cs); static bool needs_conversion(size_t arg_length, CHARSET_INFO *cs_from, CHARSET_INFO *cs_to, uint32 *offset); static bool needs_conversion_on_storage(size_t arg_length, CHARSET_INFO *cs_from, CHARSET_INFO *cs_to); bool copy_aligned(const char *s, size_t arg_length, size_t offset, CHARSET_INFO *cs); bool set_or_copy_aligned(const char *s, size_t arg_length, CHARSET_INFO *cs); bool copy(const char*s, size_t arg_length, CHARSET_INFO *csfrom, CHARSET_INFO *csto, uint *errors); bool copy(const String *str, CHARSET_INFO *tocs, uint *errors) { return copy(str->ptr(), str->length(), str->charset(), tocs, errors); } bool copy(CHARSET_INFO *tocs, CHARSET_INFO *fromcs, const char *src, size_t src_length, size_t nchars, String_copier *copier) { if (unlikely(alloc(tocs->mbmaxlen * src_length))) return true; str_length= copier->well_formed_copy(tocs, Ptr, Alloced_length, fromcs, src, (uint)src_length, (uint)nchars); str_charset= tocs; return false; } void move(String &s) { free(); Ptr=s.Ptr ; str_length=s.str_length ; Alloced_length=s.Alloced_length; extra_alloc= s.extra_alloc; alloced= s.alloced; thread_specific= s.thread_specific; s.alloced= 0; } bool append(const String &s); bool append(const char *s); bool append(const LEX_STRING *ls) { DBUG_ASSERT(ls->length < UINT_MAX32 && ((ls->length == 0 && !ls->str) || ls->length == strlen(ls->str))); return append(ls->str, (uint32) ls->length); } bool append(const LEX_CSTRING *ls) { DBUG_ASSERT(ls->length < UINT_MAX32 && ((ls->length == 0 && !ls->str) || ls->length == strlen(ls->str))); return append(ls->str, (uint32) ls->length); } bool append(const LEX_CSTRING &ls) { return append(&ls); } bool append(const char *s, size_t size); bool append(const char *s, size_t arg_length, CHARSET_INFO *cs); bool append(const LEX_CSTRING &s, CHARSET_INFO *cs) { return append(s.str, s.length, cs); } bool append_ulonglong(ulonglong val); bool append_longlong(longlong val); bool append(IO_CACHE* file, uint32 arg_length); bool append_with_prefill(const char *s, uint32 arg_length, uint32 full_length, char fill_char); bool append_parenthesized(long nr, int radix= 10); int strstr(const String &search,uint32 offset=0); // Returns offset to substring or -1 int strrstr(const String &search,uint32 offset=0); // Returns offset to substring or -1 bool replace(uint32 offset,uint32 arg_length,const char *to,uint32 length); bool replace(uint32 offset,uint32 arg_length,const String &to); inline bool append(char chr) { if (str_length < Alloced_length) { Ptr[str_length++]=chr; } else { if (unlikely(realloc_with_extra(str_length + 1))) return 1; Ptr[str_length++]=chr; } return 0; } bool append_hex(const char *src, uint32 srclen) { for (const char *src_end= src + srclen ; src != src_end ; src++) { if (unlikely(append(_dig_vec_lower[((uchar) *src) >> 4])) || unlikely(append(_dig_vec_lower[((uchar) *src) & 0x0F]))) return true; } return false; } bool append_hex(const uchar *src, uint32 srclen) { return append_hex((const char*)src, srclen); } bool fill(uint32 max_length,char fill); void strip_sp(); friend int sortcmp(const String *a,const String *b, CHARSET_INFO *cs); friend int stringcmp(const String *a,const String *b); friend String *copy_if_not_alloced(String *a,String *b,uint32 arg_length); friend class Field; uint32 numchars() const; int charpos(longlong i,uint32 offset=0); int reserve(size_t space_needed) { return realloc(str_length + space_needed); } int reserve(size_t space_needed, size_t grow_by); /* The following append operations do NOT check alloced memory q_*** methods writes values of parameters itself qs_*** methods writes string representation of value */ void q_append(const char c) { Ptr[str_length++] = c; } void q_append2b(const uint32 n) { int2store(Ptr + str_length, n); str_length += 2; } void q_append(const uint32 n) { int4store(Ptr + str_length, n); str_length += 4; } void q_append(double d) { float8store(Ptr + str_length, d); str_length += 8; } void q_append(double *d) { float8store(Ptr + str_length, *d); str_length += 8; } void q_append(const char *data, size_t data_len) { if (data_len) memcpy(Ptr + str_length, data, data_len); DBUG_ASSERT(str_length <= UINT_MAX32 - data_len); str_length += (uint)data_len; } void q_append(const LEX_CSTRING *ls) { DBUG_ASSERT(ls->length < UINT_MAX32 && ((ls->length == 0 && !ls->str) || ls->length == strlen(ls->str))); q_append(ls->str, (uint32) ls->length); } void write_at_position(int position, uint32 value) { int4store(Ptr + position,value); } void qs_append(const char *str) { qs_append(str, (uint32)strlen(str)); } void qs_append(const LEX_CSTRING *ls) { DBUG_ASSERT(ls->length < UINT_MAX32 && ((ls->length == 0 && !ls->str) || ls->length == strlen(ls->str))); qs_append(ls->str, (uint32)ls->length); } void qs_append(const char *str, size_t len); void qs_append_hex(const char *str, uint32 len); void qs_append(double d); void qs_append(double *d); inline void qs_append(const char c) { Ptr[str_length]= c; str_length++; } void qs_append(int i); void qs_append(uint i) { qs_append((ulonglong)i); } void qs_append(ulong i) { qs_append((ulonglong)i); } void qs_append(ulonglong i); void qs_append(longlong i, int radix) { char *buff= Ptr + str_length; char *end= ll2str(i, buff, radix, 0); str_length+= uint32(end-buff); } /* Inline (general) functions used by the protocol functions */ inline char *prep_append(uint32 arg_length, uint32 step_alloc) { uint32 new_length= arg_length + str_length; if (new_length > Alloced_length) { if (unlikely(realloc(new_length + step_alloc))) return 0; } uint32 old_length= str_length; str_length+= arg_length; return Ptr+ old_length; /* Area to use */ } inline bool append(const char *s, uint32 arg_length, uint32 step_alloc) { uint32 new_length= arg_length + str_length; if (new_length > Alloced_length && unlikely(realloc(new_length + step_alloc))) return TRUE; memcpy(Ptr+str_length, s, arg_length); str_length+= arg_length; return FALSE; } void print(String *to) const; void print_with_conversion(String *to, CHARSET_INFO *cs) const; void print(String *to, CHARSET_INFO *cs) const { if (my_charset_same(charset(), cs)) print(to); else print_with_conversion(to, cs); } bool append_for_single_quote(const char *st, size_t len); bool append_for_single_quote(const String *s) { return append_for_single_quote(s->ptr(), s->length()); } bool append_for_single_quote(const char *st) { size_t len= strlen(st); DBUG_ASSERT(len < UINT_MAX32); return append_for_single_quote(st, (uint32) len); } /* Swap two string objects. Efficient way to exchange data without memcpy. */ void swap(String &s); inline bool uses_buffer_owned_by(const String *s) const { return (s->alloced && Ptr >= s->Ptr && Ptr < s->Ptr + s->str_length); } uint well_formed_length() const { return (uint) Well_formed_prefix(charset(), ptr(), length()).length(); } bool is_ascii() const { if (length() == 0) return TRUE; if (charset()->mbminlen > 1) return FALSE; for (const char *c= ptr(), *c_end= c + length(); c < c_end; c++) { if (!my_isascii(*c)) return FALSE; } return TRUE; } bool bin_eq(const String *other) const { return length() == other->length() && !memcmp(ptr(), other->ptr(), length()); } bool eq(const String *other, CHARSET_INFO *cs) const { return !sortcmp(this, other, cs); } void q_net_store_length(ulonglong length) { DBUG_ASSERT(Alloced_length >= (str_length + net_length_size(length))); char *pos= (char *) net_store_length((uchar *)(Ptr + str_length), length); str_length= uint32(pos - Ptr); } void q_net_store_data(const uchar *from, size_t length) { DBUG_ASSERT(length < UINT_MAX32); DBUG_ASSERT(Alloced_length >= (str_length + length + net_length_size(length))); q_net_store_length(length); q_append((const char *)from, (uint32) length); } }; // The following class is a backport from MySQL 5.6: /** String class wrapper with a preallocated buffer of size buff_sz This class allows to replace sequences of: char buff[12345]; String str(buff, sizeof(buff)); str.length(0); with a simple equivalent declaration: StringBuffer<12345> str; */ template<size_t buff_sz> class StringBuffer : public String { char buff[buff_sz]; public: StringBuffer() : String(buff, buff_sz, &my_charset_bin) { length(0); } explicit StringBuffer(CHARSET_INFO *cs) : String(buff, buff_sz, cs) { length(0); } }; static inline bool check_if_only_end_space(CHARSET_INFO *cs, const char *str, const char *end) { return str+ cs->cset->scan(cs, str, end, MY_SEQ_SPACES) == end; } int append_query_string(CHARSET_INFO *csinfo, String *to, const char *str, size_t len, bool no_backslash); #endif /* SQL_STRING_INCLUDED */