[libvirt] [PATCH 00/14] Initial split of the daemons

This patch series is the final bit of refactoring needed to start splitting up libvirtd for real. The last three patches are not really quite ready for merge, but I've included them to illustrate what the end result is looking like. I have taken the approach of adding conditionals into the libvirtd source, so that we don't end up with 10+ cut+paste copies of all the boilerplate code. Essentially the virt${DRIVER}d daemons are functionally identical to libvirtd, except that anything todo with TCP is disabled, and they only load a single driver. This does mean they are somewhat "fatter" than they need to be (mostly in terms of number of worker threads in every daemon), but I figure we can optimize later if desired. Obviously splitting off storage, nwfilter and network drivers is going to require extra work first because of the callbacks they have into virt drivers. Hence I've started with the secret driver as the trivial thing to prove the general concept. The nodedev and interface drivers will also be trivial, at least to start with. I'm contemplating whether we should put the host device assignment tracking into the nodedev driver itself. With this series, if you connect to the QEMU driver, you should automatically get a connection to the separate virtsecretd daemon. Similarly when the QEMU driver tries to open the secret driver, it should end up talking to the virtsecretd daemon via the remote driver. Daniel P. Berrangé (14): build: prevent unloading of all public libraries remote: stop trying to load Xen driver module build: prevent unloading of dlopen'd modules driver: don't keep a pointer to the loaded library handle driver: fix handling of error return from finding resource driver: tighten check for whether loadable module exists or not driver: use normal error reporting APIs when loading modules driver: add option to make missing drivers a fatal problem remote: honour errors from virDriverLoadModule remote: split URI scheme into driver and transport upfront remote: refactor code for building UNIX socket paths remote: conditionalize sources for some pieces to become optional remote: allow remote driver to connect to alternative daemons secret: introduce virtsecretd daemon src/Makefile.am | 12 ++- src/driver.c | 91 ++++++++++------ src/driver.h | 9 +- src/libvirt.c | 24 +++++ src/remote/Makefile.inc.am | 20 ++++ src/remote/remote_daemon.c | 196 ++++++++++++++++++++-------------- src/remote/remote_daemon_config.c | 36 +++++-- src/remote/remote_daemon_config.h | 9 +- src/remote/remote_daemon_dispatch.c | 11 +- src/remote/remote_driver.c | 202 ++++++++++++++++++++++++------------ src/remote/remote_driver.h | 4 - src/secret/Makefile.inc.am | 54 ++++++++++ src/storage/storage_backend.c | 13 +-- src/util/virfile.c | 4 + tests/virdrivermoduletest.c | 2 +- 15 files changed, 483 insertions(+), 204 deletions(-) -- 2.14.3