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2018-03-06qio: non-default context for threaded qtaskPeter Xu
qio_task_run_in_thread() allows main thread to run blocking operations in the background. However it has an assumption on that it's always working with the default context. This patch tries to allow the threaded QIO task framework to run with non-default gcontext. Currently no functional change so far, so the QIOTasks are still always running on main context. Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-03-02Include less of the generated modular QAPI headersMarkus Armbruster
In my "build everything" tree, a change to the types in qapi-schema.json triggers a recompile of about 4800 out of 5100 objects. The previous commit split up qmp-commands.h, qmp-event.h, qmp-visit.h, qapi-types.h. Each of these headers still includes all its shards. Reduce compile time by including just the shards we actually need. To illustrate the benefits: adding a type to qapi/migration.json now recompiles some 2300 instead of 4800 objects. The next commit will improve it further. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180211093607.27351-24-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> [eblake: rebase to master] Signed-off-by: Eric Blake <eblake@redhat.com>
2017-07-14io: preserve ipv4/ipv6 flags when resolving InetSocketAddressDaniel P. Berrange
The original InetSocketAddress struct may have has_ipv4 and has_ipv6 fields set, which will control both the ai_family used during DNS resolution, and later use of the V6ONLY flag. Currently the standalone DNS resolver code drops the has_ipv4 & has_ipv6 flags after resolving, which means the later bind() code won't correctly set V6ONLY. This fixes the following scenarios -vnc :0,ipv4=off -vnc :0,ipv6=on -vnc :::0,ipv4=off -vnc :::0,ipv6=on which all mistakenly accepted IPv4 clients Acked-by: Gerd Hoffmann <kraxel@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-05-09sockets: Limit SocketAddressLegacy to external interfacesMarkus Armbruster
SocketAddressLegacy is a simple union, and simple unions are awkward: they have their variant members wrapped in a "data" object on the wire, and require additional indirections in C. SocketAddress is the equivalent flat union. Convert all users of SocketAddressLegacy to SocketAddress, except for existing external interfaces. See also commit fce5d53..9445673 and 85a82e8..c5f1ae3. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1493192202-3184-7-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [Minor editing accident fixed, commit message and a comment tweaked] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09sockets: Rename SocketAddress to SocketAddressLegacyMarkus Armbruster
The next commit will rename SocketAddressFlat to SocketAddress, and the commit after that will replace most uses of SocketAddressLegacy by SocketAddress, replacing most of this commit's renames right back. Note that checkpatch emits a few "line over 80 characters" warnings. The long lines are all temporary; the SocketAddressLegacy replacement will shorten them again. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1493192202-3184-5-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-04-04io: fix FD socket handling in DNS lookupDaniel P. Berrange
The qio_dns_resolver_lookup_sync() method is required to be a no-op for socket kinds that don't require name resolution. Thus the KIND_FD handling should not return an error. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-04-03io vnc sockets: Clean up SocketAddressKind switchesMarkus Armbruster
We have quite a few switches over SocketAddressKind. Some have case labels for all enumeration values, others rely on a default label. Some abort when the value isn't a valid SocketAddressKind, others report an error then. Unify as follows. Always provide case labels for all enumeration values, to clarify intent. Abort when the value isn't a valid SocketAddressKind, because the program state is messed up then. Improve a few error messages while there. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-id: 1490895797-29094-4-git-send-email-armbru@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-01-23io: introduce a DNS resolver APIDaniel P. Berrange
Currently DNS resolution is done automatically as part of the creation of a QIOChannelSocket object instance. This works ok for network clients where you just end up a single network socket, but for servers, the results of DNS resolution may require creation of multiple sockets. Introducing a DNS resolver API allows DNS resolution to be separated from the socket object creation. This will make it practical to create multiple QIOChannelSocket instances for servers. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>