How to map the client PID:TID to db connection on the database?

Hi,
We have a multithreaded application and each thread connects to database using the same userID.
How do I identify on the dtabase side which DB connection belongs to which client thread?
I need to uniquely map the client processID:Thread ID to a DB connection.
On Unix I do not see the processID:Thread ID pair in the v$session table process column.
It is only showing the PID.
Any other ways to map the client PID:TID to db connection?
Thanks

sb92075 wrote:
Unix does not have threads.It does. See POSIX Threads. But it is seldom used (in my experience) - likely legacy reasons as the fork() model works well and the Linux/Unix kernel does not suffer from the same problems that the Win32/64 kernel does when faced with a large number of executable process images to manage.
May be mistaken, but I think Ingres added PThreads support to their database some years ago. My guess it won't be that difficult for Oracle to follow suit as they have a process/thread abstraction layer (using the fork() model on Linux/Unix and CreateThread() on Windows).
Question though is what will using PThreads buy ito resource footprint and robustness and management on a Linux/Unix kernel? From personal experience, writing code on Unix is safer as a forked child process cannot "damage" the parent (separate data segment). On Win32 a poorly behaved client thread can cause a failure in the parent process and crash it. But then Win32 API also supports fibres and one can design and code sophisticated multi-thread processes.

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How to map the client PID:TID to db connection on the database?

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