Uthaiyashankar wrote:
Hi,
Since apache is creating child processes using fork (in linux), only
possible option to share data between children is using an ipc method.
For example, creating Axis2_worker, conf_context and global pool in a
shared memory, and sharing between processes (using apr_shm, apr_rmm).
We can use global mutex to control the access of shared memory. An
example implementation is given in
http://people.apache.org/~sctemme/mod_example_ipc.c.
mod_ldap is also using a similar approach to cache and share data
between child processes.
However, to hide the low level details from service/module
implementers, we might have to write a wrapper to manage the shared
memory, growing/shrinking the shared memory according to the demand,
creating objects in shared memory, etc.
It is also possible to use apr_dbm/apr_memcache to share data, but
those are similar to using a database.
Any other thoughts or comments ??
+1 for shared memory model with a wrapper.
This means that we would have to keep the description hierarchy and the
context hierarchy in this shared memory space.
Thanks,
Samisa...
--
Samisa Abeysinghe
Software Architect; WSO2 Inc.; http://www.wso2.com/
email: [EMAIL PROTECTED]; cell: +94 77 753 7913
"Oxygenating the Web Service Platform."
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
