On Saturday, 17 May 2014 at 18:43:25 UTC, Charles Hixson via
Digitalmars-d-learn wrote:
I'm building a program which I intend to have many threads that
can each send
messages to (and receive messages from) each other. The
obvious way to do
this would be to have a shared array of Tids, but this seems to
not work. I'm
continually fighting the system to get it to compile, and this
makes me think
it should probably be done some other way...but what?
One possibility is to have each thread maintain a separate
array that contains
all the threads, which would mean that they would need to be
initialized after
they were created. This would avoid the problems of shared
Tids, but each Tid
contains a private mailbox, so this would be being duplicated,
and that
bothers me...it seems like a poor idea. (Maybe I'm wrong about
that...but I
don't know.)
If my understanding is correct, each Tid contains a reference to
the corresponding thread's MessageBox (implemented by way of
MessageBox being a class), not an independent instance. You
should be fine to just have an array of the relevant Tids in each
thread.
Alternatively, a single __gshared array of threads should work,
given you are sufficiently careful with it. Remember, if no-one
is doing any writing then you don't need to do any
synchronisation of reads.
