[libvirt] [PATCH] qemu: require qmp on new enough qemu

[Eric Blake]

On 01/26/2012 08:17 AM, Daniel P. Berrange wrote:
> On Wed, Jan 25, 2012 at 10:29:19PM -0700, Eric Blake wrote:
>> The qemu developers have made it clear that modern qemu will no
>> longer guarantee human monitor command stability; furthermore,
>> some features, such as async events, are only supported via qmp.
>> If we are compiled without support for handling JSON, we cannot
>> expect to sanely interact with modern qemu.
>>
>> However, things must continue to build on RHEL 5, where qemu
>> is stuck at 0.10, and where yajl is not available.
>>
>> Another benefit of this patch: future additions of new monitor
>> commands need only focus on qemu_monitor_json.c, instead of
>> also wasting time with qemu_monitor_text.c.
>>
>> * src/qemu/qemu_capabilities.c (qemuCapsComputeCmdFlags): Report
>> error if yajl is missing but qemu requires qmp.
>> (qemuCapsParseHelpStr): Propagate error.
>> (qemuCapsExtractVersionInfo): Update caller.
>> * tests/qemuhelptest.c (testHelpStrParsing): Likewise.
>> ---
>>
>> Tested on Fedora 16, RHEL 6.2, and RHEL 5.8.
>>
>>  src/qemu/qemu_capabilities.c |   33 ++++++++++++++++++++++++++++-----
>>  src/qemu/qemu_capabilities.h |    3 ++-
>>  tests/qemuhelptest.c         |    2 +-
>>  3 files changed, 31 insertions(+), 7 deletions(-)
> 
> ACK

Thanks; pushed.

-- 
Eric Blake   eblake at redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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