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
|
# ==== Purpose ====
#
# Waits until a variable from SHOW STATUS has returned a specified
# value, or until a timeout is reached.
#
# ==== Usage ====
#
# let $status_var= Threads_connected;
# let $status_var_value= 1;
# --source include/wait_for_status_var.inc
#
# Parameters:
#
# $status_var, $status_var_value
# This macro will wait until the variable of SHOW STATUS
# named $status_var gets the value $status_var_value. See
# the example above.
#
# $status_type= GLOBAL|SESSION
# To specify the type (attribute) of status variable and
# run either SHOW GLOBAL STATUS or SHOW SESSION STATUS.
#
# $status_var_comparsion
# By default, this file waits until $status_var becomes equal to
# $status_var_value. If you want to wait until $status_var
# becomes *unequal* to $status_var_value, set this parameter to the
# string '!=', like this:
# let $status_var_comparsion= !=;
#
# $status_timeout
# The default timeout is 1 minute. You can change the timeout by
# setting $status_timeout. The unit is tenths of seconds.
#
if (`SELECT STRCMP('$status_type', '') * STRCMP(UPPER('$status_type'), 'SESSION') * STRCMP(UPPER('$status_type'), 'GLOBAL')`)
{
--echo **** ERROR: Unknown type of variable status_type: allowed values are: SESSION or GLOBAL ****
die;
}
let $_status_timeout_counter= $status_timeout;
if (!$_status_timeout_counter)
{
let $_status_timeout_counter= 600;
}
let $_status_var_comparsion= $status_var_comparsion;
if (!$_status_var_comparsion)
{
let $_status_var_comparsion= =;
}
# Get type of variable
let $_is_number= 0;
if (`SELECT '$status_var_value' REGEXP '^[\+\-]*[0-9]+(\.[0-9]+)*\$'`)
{
let $_is_number= 1;
}
let $_show_status_value= query_get_value("SHOW $status_type STATUS LIKE '$status_var'", Value, 1);
# Set way of comparing
let $_query= SELECT NOT('$_show_status_value' $_status_var_comparsion '$status_var_value');
if ($_is_number)
{
let $_query= SELECT NOT($_show_status_value $_status_var_comparsion $status_var_value);
}
while (`$_query`)
{
if (!$_status_timeout_counter)
{
--echo **** ERROR: failed while waiting for '$status_type' '$status_var' $_status_var_comparsion '$status_var_value' ****
--echo Note: the following output may have changed since the failure was detected
--echo **** Showing STATUS, PROCESSLIST ****
eval SHOW $status_type STATUS LIKE '$status_var';
SHOW PROCESSLIST;
die;
}
dec $_status_timeout_counter;
sleep 0.1;
let $_show_status_value= query_get_value("SHOW $status_type STATUS LIKE '$status_var'", Value, 1);
let $_query= SELECT NOT('$_show_status_value' $_status_var_comparsion '$status_var_value');
if ($_is_number)
{
let $_query= SELECT NOT($_show_status_value $_status_var_comparsion $status_var_value);
}
}
|
