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vmm: Implement HTTP API for obtaining counters

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The counters are a hash of device name to hash of counter name to u64
value. Currently the API is only implemented with a stub that returns an
empty set of counters.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford
2020-06-24 11:20:13 +01:00
committed by Samuel Ortiz
parent fd4aba8eae
commit bca8a19244
5 changed files with 57 additions and 3 deletions
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11
vmm/src/api/mod.rs
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@@ -214,6 +214,9 @@ pub enum ApiRequest {
/// Resume a VM.
VmResume(Sender<ApiResponse>),
/// Get counters for a VM.
VmCounters(Sender<ApiResponse>),
/// Shut the previously booted virtual machine down.
/// If the VM was not previously booted or created, the VMM API server
/// will send a VmShutdown error back.
@@ -300,6 +303,9 @@ pub enum VmAction {
/// Resume a VM
Resume,
/// Return VM counters
Counters,
/// Add VFIO device
AddDevice(Arc<DeviceConfig>),
@@ -346,6 +352,7 @@ fn vm_action(
Reboot => ApiRequest::VmReboot(response_sender),
Pause => ApiRequest::VmPause(response_sender),
Resume => ApiRequest::VmResume(response_sender),
Counters => ApiRequest::VmCounters(response_sender),
AddDevice(v) => ApiRequest::VmAddDevice(v, response_sender),
AddDisk(v) => ApiRequest::VmAddDisk(v, response_sender),
AddFs(v) => ApiRequest::VmAddFs(v, response_sender),
@@ -395,6 +402,10 @@ pub fn vm_resume(api_evt: EventFd, api_sender: Sender<ApiRequest>) -> ApiResult<
vm_action(api_evt, api_sender, VmAction::Resume)
}
pub fn vm_counters(api_evt: EventFd, api_sender: Sender<ApiRequest>) -> ApiResult<Option<Body>> {
vm_action(api_evt, api_sender, VmAction::Counters)
}
pub fn vm_snapshot(
api_evt: EventFd,
api_sender: Sender<ApiRequest>,