This is a followup to v1: https://www.redhat.com/archives/libvir-list/2020-January/msg00900.html v2: https://www.redhat.com/archives/libvir-list/2020-January/msg01158.html At the end of this series we have 100% eliminated use of GNULIB from libvirt. Some things to note - I have build tested this on Travis platforms and manually via FreeBSD 11/12. This covers make, make syntax-check & make check - I've validated that virsh still works with mingw64 builds on Windows 2008r2. - I've done basic functional testing on Fedora 31, starting and stopping VMs & other other simple APIs The config.h we generate is much much smaller than before as we eliminated alot of gnulib macros. The risk here is that we are no longer setting some HAVE_XXX in config.h that we rely on. To mitigate this I did a diff of config.h before & after this series to determinw which HAVE_XXX we no longer set. I then grepped the source to see if we actually use any of them. This identified a few mistakes which I fixed in testing this series. The builds times for libvirt after applying this series have some significant gains, improving speed of all stages (autogen, configure & make). Overall while this was time consuming work (due to massive number of builds for testing each step), it is surprising just how easy it was eliminate need for GNULIB. GLib helped a little bit in this respect, but the biggest factor is simply that a large number of issues GNULIB fixes only matter for ancient / obsolete OS platforms. With libvirt only targetting modern Linux, FreeBSD, macOS & MinGW, the only really hard stuff where GNULIB was a big help is the Windows sockets portability. GNULIB was a pretty valuable approach when there were countless flavours of UNIX to worry about with poor levels of POSIX API compatibility. With a typical modern set of platforms, I think it is better to just use a library like GLib and deal with any other portability problems explicitly. Almost certainly someone will appear after next release and complain that libvirt no longer builds on some platform that we don't officially support. My expectation is that when this happens it will be reasonably easy to fix whatever problem they report. Also at that time we can also consider whether the platform needs to be added to CI. Changed in v3: - Merged all the already acked patches which didn't have ordering dependencies - Rewrite way virsh monitor long running jobs to avoid non-portable pipe usage - Improve debug messages in glib event loop - Add dtrace probes to glib event loop - Remove main context acquire/release steps - Fix buck passing mistakes in RPC client event loop conversion - Purge more from syntax-check - Improve event watch to GIOCondition conversions - Fix leak of windows event object HANDLE Daniel P. Berrangé (7): tools: rewrite interactive job monitoring logic src: introduce helper API for creating GSource for socket rpc: convert RPC client to use GMainLoop instead of poll util: import an event loop impl based on GMainContext util: switch to use the GLib event loop impl util: delete the poll() based event loop impl gnulib: delete all gnulib integration .color_coded.in | 2 - .gitignore | 9 +- .gitmodules | 3 - .gnulib | 1 - .ycm_extra_conf.py.in | 2 - Makefile.am | 2 +- README-hacking | 9 +- autogen.sh | 219 +------ bootstrap | 1073 ------------------------------- bootstrap.conf | 100 --- build-aux/syntax-check.mk | 160 +---- ci/build.sh | 4 +- config-post.h | 5 +- configure.ac | 11 +- docs/compiling.html.in | 25 - docs/hacking.html.in | 5 +- gnulib/lib/Makefile.am | 30 - libvirt.spec.in | 2 - m4/virt-compile-warnings.m4 | 18 +- po/POTFILES.in | 1 - src/Makefile.am | 7 +- src/admin/Makefile.inc.am | 1 - src/bhyve/Makefile.inc.am | 1 - src/interface/Makefile.inc.am | 1 - src/libvirt_private.syms | 14 +- src/libvirt_probes.d | 14 + src/libxl/Makefile.inc.am | 1 - src/locking/Makefile.inc.am | 3 - src/logging/Makefile.inc.am | 1 - src/lxc/Makefile.inc.am | 2 - src/network/Makefile.inc.am | 3 +- src/node_device/Makefile.inc.am | 2 - src/nwfilter/Makefile.inc.am | 1 - src/qemu/Makefile.inc.am | 1 - src/remote/Makefile.inc.am | 1 - src/rpc/virnetclient.c | 222 ++++--- src/rpc/virnetsocket.c | 6 - src/secret/Makefile.inc.am | 1 - src/security/Makefile.inc.am | 1 - src/storage/Makefile.inc.am | 16 - src/util/Makefile.inc.am | 6 +- src/util/viralloc.h | 3 +- src/util/virbitmap.c | 4 +- src/util/virevent.c | 21 +- src/util/vireventglib.c | 499 ++++++++++++++ src/util/vireventglib.h | 28 + src/util/vireventglibwatch.c | 249 +++++++ src/util/vireventglibwatch.h | 48 ++ src/util/vireventpoll.c | 772 ---------------------- src/util/vireventpoll.h | 126 ---- src/util/virfile.c | 7 +- src/util/virsocket.h | 15 - src/vbox/Makefile.inc.am | 1 - src/vz/Makefile.inc.am | 1 - tests/Makefile.am | 21 +- tests/virstringtest.c | 3 +- tools/Makefile.am | 9 +- tools/virsh-domain.c | 388 ++++++----- tools/virsh.h | 3 +- 59 files changed, 1268 insertions(+), 2916 deletions(-) delete mode 160000 .gnulib delete mode 100755 bootstrap delete mode 100644 bootstrap.conf delete mode 100644 gnulib/lib/Makefile.am create mode 100644 src/util/vireventglib.c create mode 100644 src/util/vireventglib.h create mode 100644 src/util/vireventglibwatch.c create mode 100644 src/util/vireventglibwatch.h delete mode 100644 src/util/vireventpoll.c delete mode 100644 src/util/vireventpoll.h -- 2.24.1
