Hello,
kamailio's native scripting language interpreter has a custom handling for return values:
- return < 0 - it is evaluated as false
- return >0 - it is evaluated as true
- return = 0 - it is evaluated as 'stop execution of config script'
See also:
- https://www.kamailio.org/wiki/tutorials/faq/main#how_is_the_function_return_...
It is how the interpreter was designed long time ago (like 2001 - 2002).
Cheers, Daniel
On 15.02.18 10:28, Anthony Alba wrote:
5.1.1: if python_exec method returns 0, then the script hangs
If the python_exec method return -1, then expressions treat it as if it returned zero.
Somewhere there seems to be an offset by 1 issue.
if (!python_exec("method")) { # if you return -1, the script does not hang but treated like zero }
################## Example 1: class kamailio(object): def hello(self, msg): KSR.info("hello, world\n") return 0
Calling: python_exec("hello")
will cause script hang
################### Example 2: class kamailio(object): def hello(self, msg): KSR.info("hello, world\n") return -1
Calling python_exec("hello")
if (!python_exec("hello")) { ## method returns -1 ## why did we get here? xlog("L_INFO","method return zero!\n"); }shows INFO: <script>: method return zero!
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