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* libports/manage-multithread.c (internal_demuxer): Preserve all
message flags when we store the objects address as payload in the
message.
* libports/manage-one-thread.c (internal_demuxer): Likewise.
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The Hurd uses protected payloads to improve the receiver lookup on the
server side to the point that we no longer do a hash table lookup in
the dispatch code.
If the kernel does not support protected payloads, we degrade
gracefully, do one lookup in libports' dispatching code, and emulate
the protected payload feature to still save one hash table lookup in
the intrans function.
* libports/manage-multithread.c (ports_manage_port_operations_multithread):
Add comment.
* libports/manage-one-thread.c (ports_manage_port_operations_one_thread):
Likewise.
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* NEWS: Mention protected payloads.
* libports/Makefile (SRCS): Add `port-deref-deferred.c'.
* libports/create-internal.c (_ports_create_port_internal): Set the
protected payload to the objects address.
* libports/import-port.c (ports_import_port): Likewise.
* libports/reallocate-from-external.c (ports_reallocate_from_external):
Likewise.
* libports/reallocate-port.c (ports_reallocate_port): Likewise.
* libports/transfer-right.c (ports_transfer_right): Likewise.
* libports/manage-multithread.c (ports_manage_port_operations_multithread):
Use the protected payload for the object lookup if provided. Add
thread pool management calls.
* libports/manage-one-thread.c (ports_manage_port_operations_one_thread):
Likewise.
* libports/destroy-right.c (ports_destroy_right): Defer the
dereferencing of outstanding send rights to avoid a port_info
use-after-free.
* libports/port-deref-deferred.c: New file.
* libports/port-deref-deferred.h: Likewise.
* libports/ports.h (struct port_bucket): New field `threadpool'.
(ports_lookup_payload): Check `port_right'.
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Some servers use ports_manage_port_operations_one_thread to process
requests and terminate when it returns. Since many of them don't detach
before shutting down, a client may receive an error if its request
arrived while the server is shutting down. Prevent those spurious errors
by forcing ports_manage_port_operations_one_thread not to return.
This is the same change as 235491231bdd1fd93507c835767503f047e10b91
introduced for ports_manage_port_operations_multithread.
* libports/manage-one-thread.c
(ports_manage_port_operations_one_thread): Force timeout to 0.
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* Fix spelling with codespell[1] and manually review it.
[1] http://git.profusion.mobi/cgit.cgi/lucas/codespell/
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statuses and errors rather than just zero.
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before doing work; we might return 0 and mach_msg_server expects us to
fill in a reply decently no matter what.
(ports_manage_port_operations_multithread): Likewise.
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Pass INP->msgh_id to ports_begin_rpc, and only call DEMUXER if it returns 0.
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attempt RPC if we can't get a valid port struct.
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