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https://github.com/cloud-hypervisor/cloud-hypervisor.git
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vmm: api: Extend VmAction to reduce code duplication
Many of the API requests take a similar form with a single data item (i.e. config for a device hotplug) expand the VmAction enum to handle those actions and a single function to dispatch those API events. For now port the existing helper functions to use this new API. In the future the HTTP layer can create the VmAction directly avoiding the extra layer of indirection. Signed-off-by: Rob Bradford <robert.bradford@intel.com>
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Rob Bradford
parent
6ec605a7fb
commit
0fe223f00e
@ -296,18 +296,59 @@ pub enum VmAction {
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/// Resume a VM
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Resume,
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/// Add VFIO device
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AddDevice(Arc<DeviceConfig>),
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/// Add disk
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AddDisk(Arc<DiskConfig>),
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/// Add filesystem
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AddFs(Arc<FsConfig>),
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/// Add pmem
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AddPmem(Arc<PmemConfig>),
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/// Add network
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AddNet(Arc<NetConfig>),
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/// Add vsock
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AddVsock(Arc<VsockConfig>),
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/// Remove VFIO device
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RemoveDevice(Arc<VmRemoveDeviceData>),
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/// Resize VM
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Resize(Arc<VmResizeData>),
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/// Restore VM
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Restore(Arc<RestoreConfig>),
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/// Snapshot VM
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Snapshot(Arc<VmSnapshotConfig>),
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}
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fn vm_action(api_evt: EventFd, api_sender: Sender<ApiRequest>, action: VmAction) -> ApiResult<()> {
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let (response_sender, response_receiver) = channel();
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use VmAction::*;
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let request = match action {
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VmAction::Boot => ApiRequest::VmBoot(response_sender),
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VmAction::Delete => ApiRequest::VmDelete(response_sender),
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VmAction::Shutdown => ApiRequest::VmShutdown(response_sender),
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VmAction::Reboot => ApiRequest::VmReboot(response_sender),
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VmAction::Pause => ApiRequest::VmPause(response_sender),
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VmAction::Resume => ApiRequest::VmResume(response_sender),
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Boot => ApiRequest::VmBoot(response_sender),
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Delete => ApiRequest::VmDelete(response_sender),
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Shutdown => ApiRequest::VmShutdown(response_sender),
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Reboot => ApiRequest::VmReboot(response_sender),
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Pause => ApiRequest::VmPause(response_sender),
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Resume => ApiRequest::VmResume(response_sender),
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AddDevice(v) => ApiRequest::VmAddDevice(v, response_sender),
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AddDisk(v) => ApiRequest::VmAddDisk(v, response_sender),
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AddFs(v) => ApiRequest::VmAddFs(v, response_sender),
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AddPmem(v) => ApiRequest::VmAddPmem(v, response_sender),
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AddNet(v) => ApiRequest::VmAddNet(v, response_sender),
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AddVsock(v) => ApiRequest::VmAddVsock(v, response_sender),
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RemoveDevice(v) => ApiRequest::VmRemoveDevice(v, response_sender),
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Resize(v) => ApiRequest::VmResize(v, response_sender),
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Restore(v) => ApiRequest::VmRestore(v, response_sender),
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Snapshot(v) => ApiRequest::VmSnapshot(v, response_sender),
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};
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// Send the VM request.
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@ -343,22 +384,13 @@ pub fn vm_resume(api_evt: EventFd, api_sender: Sender<ApiRequest>) -> ApiResult<
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vm_action(api_evt, api_sender, VmAction::Resume)
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}
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pub fn vm_snapshot(
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api_evt: EventFd,
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api_sender: Sender<ApiRequest>,
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data: Arc<VmSnapshotConfig>,
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) -> ApiResult<()> {
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let (response_sender, response_receiver) = channel();
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// Send the VM snapshot request.
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api_sender
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.send(ApiRequest::VmSnapshot(data, response_sender))
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.map_err(ApiError::RequestSend)?;
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api_evt.write(1).map_err(ApiError::EventFdWrite)?;
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response_receiver.recv().map_err(ApiError::ResponseRecv)??;
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Ok(())
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vm_action(api_evt, api_sender, VmAction::Snapshot(data))
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}
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pub fn vm_restore(
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@ -366,17 +398,7 @@ pub fn vm_restore(
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api_sender: Sender<ApiRequest>,
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data: Arc<RestoreConfig>,
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) -> ApiResult<()> {
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let (response_sender, response_receiver) = channel();
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// Send the VM restore request.
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api_sender
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.send(ApiRequest::VmRestore(data, response_sender))
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.map_err(ApiError::RequestSend)?;
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api_evt.write(1).map_err(ApiError::EventFdWrite)?;
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response_receiver.recv().map_err(ApiError::ResponseRecv)??;
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Ok(())
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vm_action(api_evt, api_sender, VmAction::Restore(data))
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}
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pub fn vm_info(api_evt: EventFd, api_sender: Sender<ApiRequest>) -> ApiResult<VmInfo> {
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@ -431,17 +453,7 @@ pub fn vm_resize(
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api_sender: Sender<ApiRequest>,
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data: Arc<VmResizeData>,
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) -> ApiResult<()> {
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let (response_sender, response_receiver) = channel();
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// Send the VM resizing request.
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api_sender
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.send(ApiRequest::VmResize(data, response_sender))
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.map_err(ApiError::RequestSend)?;
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api_evt.write(1).map_err(ApiError::EventFdWrite)?;
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response_receiver.recv().map_err(ApiError::ResponseRecv)??;
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Ok(())
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vm_action(api_evt, api_sender, VmAction::Resize(data))
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}
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pub fn vm_add_device(
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@ -449,17 +461,7 @@ pub fn vm_add_device(
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api_sender: Sender<ApiRequest>,
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data: Arc<DeviceConfig>,
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) -> ApiResult<()> {
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let (response_sender, response_receiver) = channel();
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// Send the VM add-device request.
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api_sender
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.send(ApiRequest::VmAddDevice(data, response_sender))
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.map_err(ApiError::RequestSend)?;
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api_evt.write(1).map_err(ApiError::EventFdWrite)?;
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response_receiver.recv().map_err(ApiError::ResponseRecv)??;
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Ok(())
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vm_action(api_evt, api_sender, VmAction::AddDevice(data))
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}
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pub fn vm_remove_device(
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@ -467,17 +469,7 @@ pub fn vm_remove_device(
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api_sender: Sender<ApiRequest>,
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data: Arc<VmRemoveDeviceData>,
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) -> ApiResult<()> {
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let (response_sender, response_receiver) = channel();
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// Send the VM remove-device request.
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api_sender
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.send(ApiRequest::VmRemoveDevice(data, response_sender))
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.map_err(ApiError::RequestSend)?;
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api_evt.write(1).map_err(ApiError::EventFdWrite)?;
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response_receiver.recv().map_err(ApiError::ResponseRecv)??;
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Ok(())
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vm_action(api_evt, api_sender, VmAction::RemoveDevice(data))
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}
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pub fn vm_add_disk(
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@ -485,17 +477,7 @@ pub fn vm_add_disk(
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api_sender: Sender<ApiRequest>,
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data: Arc<DiskConfig>,
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) -> ApiResult<()> {
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let (response_sender, response_receiver) = channel();
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// Send the VM add-disk request.
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api_sender
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.send(ApiRequest::VmAddDisk(data, response_sender))
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.map_err(ApiError::RequestSend)?;
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api_evt.write(1).map_err(ApiError::EventFdWrite)?;
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response_receiver.recv().map_err(ApiError::ResponseRecv)??;
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Ok(())
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vm_action(api_evt, api_sender, VmAction::AddDisk(data))
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}
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pub fn vm_add_fs(
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@ -503,17 +485,7 @@ pub fn vm_add_fs(
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api_sender: Sender<ApiRequest>,
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data: Arc<FsConfig>,
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) -> ApiResult<()> {
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let (response_sender, response_receiver) = channel();
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// Send the VM add-fs request.
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api_sender
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.send(ApiRequest::VmAddFs(data, response_sender))
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.map_err(ApiError::RequestSend)?;
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api_evt.write(1).map_err(ApiError::EventFdWrite)?;
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response_receiver.recv().map_err(ApiError::ResponseRecv)??;
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Ok(())
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vm_action(api_evt, api_sender, VmAction::AddFs(data))
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}
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pub fn vm_add_pmem(
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@ -521,17 +493,7 @@ pub fn vm_add_pmem(
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api_sender: Sender<ApiRequest>,
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data: Arc<PmemConfig>,
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) -> ApiResult<()> {
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let (response_sender, response_receiver) = channel();
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// Send the VM add-pmem request.
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api_sender
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.send(ApiRequest::VmAddPmem(data, response_sender))
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.map_err(ApiError::RequestSend)?;
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api_evt.write(1).map_err(ApiError::EventFdWrite)?;
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response_receiver.recv().map_err(ApiError::ResponseRecv)??;
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Ok(())
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vm_action(api_evt, api_sender, VmAction::AddPmem(data))
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}
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pub fn vm_add_net(
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@ -539,17 +501,7 @@ pub fn vm_add_net(
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api_sender: Sender<ApiRequest>,
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data: Arc<NetConfig>,
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) -> ApiResult<()> {
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let (response_sender, response_receiver) = channel();
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// Send the VM add-net request.
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api_sender
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.send(ApiRequest::VmAddNet(data, response_sender))
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.map_err(ApiError::RequestSend)?;
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api_evt.write(1).map_err(ApiError::EventFdWrite)?;
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response_receiver.recv().map_err(ApiError::ResponseRecv)??;
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Ok(())
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vm_action(api_evt, api_sender, VmAction::AddNet(data))
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}
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pub fn vm_add_vsock(
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@ -557,15 +509,5 @@ pub fn vm_add_vsock(
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api_sender: Sender<ApiRequest>,
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data: Arc<VsockConfig>,
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) -> ApiResult<()> {
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let (response_sender, response_receiver) = channel();
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// Send the VM add-vsock request.
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api_sender
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.send(ApiRequest::VmAddVsock(data, response_sender))
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.map_err(ApiError::RequestSend)?;
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api_evt.write(1).map_err(ApiError::EventFdWrite)?;
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response_receiver.recv().map_err(ApiError::ResponseRecv)??;
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Ok(())
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vm_action(api_evt, api_sender, VmAction::AddVsock(data))
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}
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