Subject: [Boost-build] async rule execution
From: Stefan Seefeld (stefan_at_[hidden])
Date: 2017-05-10 15:17:06
browsing the bjam sources I ran into
/* Call the callback, may call back to jam rule land. */
(*cmdtab[ i ].func)( cmdtab[ i ].closure, rstat, &time_info,
cmdtab[ i ].buffer[ OUT ], cmdtab[ i ].buffer[ ERR ],
cmdtab[ i ].exit_reason );
which suggests it's possible to have a callback call into the b2 layer
(i.e., running some post-processing rule coded in Jam). Is that possible
? The only callback implementation I could find was the `make1c_closure`
which is used to collect status information, but which isn't passed
directly on into Jam, and thus can only be processed synchronously once
the call to `builtin_update_now` has completed.
Am I missing anything ?
-- ...ich hab' noch einen Koffer in Berlin...
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