Hello,
On 2/19/13 11:41 PM, Mino Haluz wrote:
Thank you very much for this.
One question regarding $sht. Does it need locking like $shv does?
depends what operation you do. A read does not need locking, a write
does not need, but updates that uses itself need.
Cheers,
Daniel
On Thu, Feb 14, 2013 at 8:35 AM, Daniel-Constantin Mierla
<mico...@gmail.com <mailto:mico...@gmail.com>> wrote:
Hello,
$shv(...) is referred as shared memory variable because it stores
the value in shared memory. That means if you set $shv(x) in one
process, you can read its value from another process. You have to
be sure you don't have races in setting the variable, that could
be achieved with locks from cfgutils.
$var(...) is referred as private memory variable because it stores
the value in private memory. That means its value is valid in the
context of the same process (e.g., use it while processing the
same sip message on a single routing block type, like running the
main request route block, or reply route block, etc). It is not
safe to use it for transactions, like setting it in request route
block and reading it in failure route block (use avps for that case).
$var(...) is faster to use and does not need locking at all. These
are usually referred as script variable, but this term can be
confused with all the config file variables.
Cheers,
Daniel
On 2/12/13 3:13 PM, Mino Haluz wrote:
Hi,
what is the difference between shared and script variable ? Thanks
Mino
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Kamailio World Conference, April 16-17, 2013, Berlin
- http://conference.kamailio.com -
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