From: Marc-André Lureau <marcandre.lur...@redhat.com> Hi
vhost-user & virtio are not so simple and evolve regularly. There isn't a reference code that would help you get started either. And backends duplicate most of the effort. Furthermore, due to usage of ancillary data, shared memory, eventfd, atomics, it is not so simple to implement in other languages than C either (even rust still lacks socket ancillary data support). Having a library doing the low-level parts could eventually help to reach other languages (this guided some decisions, such as being able to override message handling) I found it would help me to experiment with new usages of libvhost-user (with other devices than network for example) if qemu would provide such "reference" library. vhost-user-bridge was the most complete attempt in qemu, but it lacked some abstraction and efficient handling of the virt queues. I propose to provide such library based on virtio.c implementation and vhost-user-bridge socket handling. My hope is that at some point the library would be complete and stable enough that it could become a standalone project, but for now it makes more sense to propose it in qemu/contrib. Comments welcome! Marc-André Lureau (6): vubr: remove false comment vubr: remove unnecessary dispatcher_remove vubr: indicate peer disconnected vubr: do not accept more than one connection contrib: add libvhost-user test/vubr: use contrib/libvhost-user Makefile.objs | 1 + contrib/libvhost-user/Makefile.objs | 1 + contrib/libvhost-user/libvhost-user.c | 1401 +++++++++++++++++++++++++++++++++ contrib/libvhost-user/libvhost-user.h | 264 +++++++ tests/Makefile | 2 +- tests/vhost-user-bridge.c | 1173 ++++++--------------------- 6 files changed, 1891 insertions(+), 951 deletions(-) create mode 100644 contrib/libvhost-user/Makefile.objs create mode 100644 contrib/libvhost-user/libvhost-user.c create mode 100644 contrib/libvhost-user/libvhost-user.h -- 2.5.5
