Experimental Physics and
Industrial Control System

Dirk Zimoch <[email protected]> · Mon, 12 Mar 2012 10:56:52 +0100

Hi Michael,

If you have "third party" threads that have to work with CA, e.g. call

ca_flush_io(), it is necessary that they join the main CA context.

Otherwise they will start their own unrelated context.

Get a context handle from the main thread with ca_current_context()

after calling ca_context_create(). Then in your third party thread, call

ca_attach_context() with that context handle.

Dirk

[email protected] wrote:

I've just discovered that ca_flush_io() only appears to have an effect on IO requests generated by the calling thread and calling ca_flush_io() from an unrelated thread appears to be a no-op.  Is this deliberate?  I can't see any hint of this behaviour in the documentation, which uses the simple phrase "Flush outstanding IO requests to the server."  I was expecting the effect to be process wide.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System