Re: [libvirt] [PATCHv2 3/3] command: add virCommandAbort for cleanup paths

Sometimes, an asynchronous helper is started (such as a compressor or iohelper program), but a later error means that we want to abort that child. Make this easier. Note that since daemons and virCommandRunAsync can't mix, the only time virCommandFree can reap a process is if someone did virCommandRunAsync for a non-daemon and didn't stash the pid. * src/util/command.h (virCommandAbort): New prototype. * src/util/command.c (_virCommand): Add new field. (virCommandRunAsync, virCommandWait): Track whether pid was used. (virCommandFree): Reap child if caller did not request pid. (virCommandAbort): New function. * src/libvirt_private.syms (command.h): Export it. * tests/commandtest.c (test19): New test. --- v2: no change, but by adding patch 2, it should make it clear that this patch is doing the right thing about not reaping a long-running daemon. src/libvirt_private.syms | 1 + src/util/command.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++ src/util/command.h | 12 +++++++- tests/commandtest.c | 37 +++++++++++++++++++++++++ 4 files changed, 115 insertions(+), 1 deletions(-)