Language access and threads

Knowing how different languages support threads on the IBM® i operating system can help you evaluate how threads can be implemented in your own application.

The concepts that are described in this section pertain to all programming languages. To determine how each language enables these concepts, refer to the Language topic in the information center for the specific language.

Threads considerations for Java language
Java™ threads operate on top of the IBM i kernel threads model using the java.lang.Thread class. Each Java thread is one of the many tasks that run in the process.
Threads considerations for ILE C and ILE C++ languages
You must evaluate the existing Integrated Language Environment® (ILE) C and ILE C ++ applications for thread safety before calling them in a multithreaded job. If your program is not threadsafe, techniques are available for calling programs that are not threadsafe from multithreaded jobs.
Threads considerations for ILE COBOL language
An Integrated Language Environment (ILE) COBOL module that runs safely in a multithreaded environment can be created by serializing access to the module.
Threads considerations for ILE RPG language
An Integrated Language Environment (ILE) RPG module that runs safely in a multithreaded environment can be created by creating the module to have thread-scoped static storage, or by serializing access to the module.
Threads considerations for OPM language
Original program model (OPM) programs are not threadsafe. You should migrate OPM programs to Integrated Language Environment (ILE) and make them threadsafe before a multithreaded application calls them.

Parent topic: Multithreaded applications