[libvirt] [PATCH 00/12] rpc: Fix several issues with keepalive messages

So far, we were dropping non-blocking calls whenever sending them would block. In case a client is sending lots of stream calls (which are not supposed to generate any reply), the assumption that having other calls in a queue is sufficient to get a reply from the server doesn't work. I tried to fix this in b1e374a7ac56927cfe62435179bf0bba1e08b372 but failed and reverted that commit. While working on the proper fix, I discovered several other issues we had in handling keepalive messages in client RPC code. See individual patches for more details. As a nice bonus, the fixed version is shorter by one line than the current broken version :-) Jiri Denemark (12): client rpc: Improve debug messages in virNetClientIO client rpc: Use event loop for writing client rpc: Don't drop non-blocking calls client rpc: Just queue non-blocking call if another thread has the buck client rpc: Drop unused return value of virNetClientSendNonBlock rpc: Refactor keepalive timer code rpc: Add APIs for direct triggering of keepalive timer client rpc: Separate call creation from running IO loop rpc: Do not use timer for sending keepalive responses rpc: Remove unused parameter in virKeepAliveStopInternal server rpc: Remove APIs for manipulating filters on locked client client rpc: Send keepalive requests from IO event loop src/libvirt_probes.d | 2 +- src/rpc/virkeepalive.c | 233 ++++++++++++-------------- src/rpc/virkeepalive.h | 7 +- src/rpc/virnetclient.c | 368 +++++++++++++++++++++++------------------- src/rpc/virnetserverclient.c | 127 +++++++-------- 5 files changed, 368 insertions(+), 369 deletions(-) -- 1.7.10.2