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Bogdan Iancu
Edited by
Bogdan Iancu
Copyright © 2006 Voice Sistem SRL
Revision History
Revision $Revision: 8740 $ $Date$
__________________________________________________________
Table of Contents
1. Admin Guide
1.1. Overview
1.2. Dependencies
1.2.1. OpenSIPS Modules
1.2.2. External Libraries or Applications
1.3. Exported Parameters
1.3.1. variable (string)
1.4. Exported Functions
1.4.1. update_stat(variable,value)
1.4.2. reset_stat(variable)
1.5. Exported pseudo-variables
1.5.1. $stat
List of Examples
1.1. variable example
1.2. update_stat usage
1.3. reset_stat usage
1.4. $stat usage
Chapter 1. Admin Guide
1.1. Overview
The Statistics module is a wrapper over the internal statistics
manager, allowing the script writer to dynamically define and
use of statistic variables.
By bringing the statistics support into the script, it takes
advantage of the script flexibility in defining logics, making
possible implementation of any kind of statistic scenario.
1.2. Dependencies
1.2.1. OpenSIPS Modules
The following modules must be loaded before this module:
* No dependencies on other OpenSIPS modules.
1.2.2. External Libraries or Applications
The following libraries or applications must be installed
before running OpenSIPS with this module loaded:
* None.
1.3. Exported Parameters
1.3.1. variable (string)
Name of a new statistic variable. The name may be followed by
additional flag which describe the variable behavior:
* no_reset : variable cannot be reset.
Example 1.1. variable example
modparam("statistics", "variable", "register_counter")
modparam("statistics", "variable", "active_calls/no_reset")
1.4. Exported Functions
1.4.1. update_stat(variable,value)
Updates the value of the statistic variable with the new value.
Meaning of the parameters is as follows:
* variable - variable to be updated (it can be a string or a
pseudovariable);
* value - value to update with; it may be also negative.
This function can be used from REQUEST_ROUTE, BRANCH_ROUTE,
FAILURE_ROUTE and ONREPLY_ROUTE.
Example 1.2. update_stat usage
...
update_stat("register_counter", "+1");
...
$var(a_calls) = "active_calls";
update_stat("$var(a_calls)", "-1");
...
1.4.2. reset_stat(variable)
Resets to zero the value of the statistic variable.
Meaning of the parameters is as follows:
* variable - variable to be reset-ed (it can be a string or a
pseudovariable).
This function can be used from REQUEST_ROUTE, BRANCH_ROUTE,
FAILURE_ROUTE and ONREPLY_ROUTE.
Example 1.3. reset_stat usage
...
reset_stat("register_counter");
...
$var(reg_counter) = "register_counter";
update_stat("$var(reg_counter)");
...
1.5. Exported pseudo-variables
1.5.1. $stat
Allows to get and reset core and modules exported statistics.
The pseudo-variable receives as parameter the name of the
statistic that it want to get or reset.
Example 1.4. $stat usage
...
xlog("SHM used size = $stat(used_size) \n");
...
$stat(err_requests) = 0;
...
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