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vmm: Handle ApiRequest::VmCreate in a separate function

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It simplifies a bit the `Vmm::control_loop` and reads better to be
consistent with other `ApiRequest` handlers. Also, it removes the
repetitive `ApiError::VmAlreadyCreated` and makes `ApiError::VmCreate`
useful.

No functional changes.

Signed-off-by: Bo Chen <chen.bo@intel.com>
This commit is contained in:
Bo Chen 2021-06-24 06:29:42 -07:00 committed by Sebastien Boeuf
parent 54c552f90d
commit 1075209e2a
2 changed files with 15 additions and 11 deletions
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3
vmm/src/api/mod.rs
View File

@ -64,9 +64,6 @@ pub enum ApiError {
/// The VM could not boot.
VmBoot(VmError),
/// The VM is already created.
VmAlreadyCreated,
/// The VM could not be created.
VmCreate(VmError),

23
vmm/src/lib.rs
View File

@ -343,6 +343,17 @@ impl Vmm {
})
}
fn vm_create(&mut self, config: Arc<Mutex<VmConfig>>) -> result::Result<(), VmError> {
// We only store the passed VM config.
// The VM will be created when being asked to boot it.
if self.vm_config.is_none() {
self.vm_config = Some(config);
Ok(())
} else {
Err(VmError::VmAlreadyCreated)
}
}
fn vm_boot(&mut self) -> result::Result<(), VmError> {
// Create a new VM if we don't have one yet.
if self.vm.is_none() {
@ -1142,14 +1153,10 @@ impl Vmm {
info!("API request event: {:?}", api_request);
match api_request {
ApiRequest::VmCreate(config, sender) => {
// We only store the passed VM config.
// The VM will be created when being asked to boot it.
let response = if self.vm_config.is_none() {
self.vm_config = Some(config);
Ok(ApiResponsePayload::Empty)
} else {
Err(ApiError::VmAlreadyCreated)
};
let response = self
.vm_create(config)
.map_err(ApiError::VmCreate)
.map(|_| ApiResponsePayload::Empty);
sender.send(response).map_err(Error::ApiResponseSend)?;
}