1. Add the following line to your NOTES.INI file:

DominoAsynchronizeAgents=1

Note Enabling multiprocessing is not the same as increasing the number of agent managers.

Thread-safe LSX, C/C++ code

Notes is thread-safe. To write multithreaded agents, you must make sure your LSX or C/C++ code is thread-safe.

Thread-safe code means one of the following:

• The code shares no resources with other execution threads.
• The code shares resources with other execution threads but locks prevent concurrent access.

• Use only stack-allocated and dynamically-allocated memory in C or C++, such as, function/method local or calloc/malloc/new.
• Do not pass pointers between threads.
• If you must use static declarations, module level variables, or pass pointers, use locks.

Threading problems are usually non-deterministic.

Common threading problems include:

• Lost updates
• Partial updates
• Deadlock
• Thread calls non-thread-safe code

To create locks, use the command:

LockID=CreateLock(LockName as String)

To remove locks, use the command

DestroyLock (LockID as Integer)

See Also

Managing Asynchronous Web Agents in Domino
How synchronization works
Synchronization functions
Advantages of thread-safe agents

Glossary