[#922] engine: Fix typos and improve naming related to exec blocks

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/local_object_storage/engine/container.go

@@ -40,7 +40,7 @@ func (r *ListContainersRes) Containers() []*cid.ID {
 //
 // Returns empty result if executions are blocked (see BlockExecution).
 func (e *StorageEngine) ContainerSize(prm *ContainerSizePrm) (res *ContainerSizeRes) {
-	err := e.exec(func() error {
+	err := e.execIfNotBlocked(func() error {
 		res = e.containerSize(prm)
 		return nil
 	})
@@ -92,7 +92,7 @@ func (e *StorageEngine) containerSize(prm *ContainerSizePrm) *ContainerSizeRes {
 //
 // Returns empty result if executions are blocked (see BlockExecution).
 func (e *StorageEngine) ListContainers(_ *ListContainersPrm) (res *ListContainersRes) {
-	err := e.exec(func() error {
+	err := e.execIfNotBlocked(func() error {
 		res = e.listContainers()
 		return nil
 	})

pkg/local_object_storage/engine/control.go

@@ -44,7 +44,7 @@ var errClosed = errors.New("storage engine is closed")
 // Close releases all StorageEngine's components. Waits for all data-related operations to complete.
 // After the call, all the next ones will fail until the ResumeExecution call.
 //
-// Еhe method is supposed to be called when the application exits.
+// The method is supposed to be called when the application exits.
 func (e *StorageEngine) Close() error {
 	return e.setBlockExecErr(errClosed)
 }
@@ -73,7 +73,7 @@ func (e *StorageEngine) close() error {
 // executes op if execution is not blocked, otherwise returns blocking error.
 //
 // Can be called concurrently with setBlockExecErr.
-func (e *StorageEngine) exec(op func() error) error {
+func (e *StorageEngine) execIfNotBlocked(op func() error) error {
 	e.blockExec.mtx.RLock()
 	defer e.blockExec.mtx.RUnlock()
 
@@ -110,7 +110,7 @@ func (e *StorageEngine) setBlockExecErr(err error) error {
 	return nil
 }
 
-// BlockExecution block blocks the execution of any data-related operation. All blocked ops will return err.
+// BlockExecution blocks the execution of any data-related operation. All blocked ops will return err.
 // To resume the execution, use ResumeExecution method.
 //
 // Сan be called regardless of the fact of the previous blocking. If execution wasn't blocked, releases all resources

pkg/local_object_storage/engine/delete.go

@@ -29,7 +29,7 @@ func (p *DeletePrm) WithAddresses(addr ...*objectSDK.Address) *DeletePrm {
 //
 // Returns an error if executions are blocked (see BlockExecution).
 func (e *StorageEngine) Delete(prm *DeletePrm) (res *DeleteRes, err error) {
-	err = e.exec(func() error {
+	err = e.execIfNotBlocked(func() error {
 		res, err = e.delete(prm)
 		return err
 	})

pkg/local_object_storage/engine/get.go

@@ -45,7 +45,7 @@ func (r *GetRes) Object() *object.Object {
 //
 // Returns an error if executions are blocked (see BlockExecution).
 func (e *StorageEngine) Get(prm *GetPrm) (res *GetRes, err error) {
-	err = e.exec(func() error {
+	err = e.execIfNotBlocked(func() error {
 		res, err = e.get(prm)
 		return err
 	})

pkg/local_object_storage/engine/head.go

@@ -60,7 +60,7 @@ func (r *HeadRes) Header() *object.Object {
 //
 // Returns an error if executions are blocked (see BlockExecution).
 func (e *StorageEngine) Head(prm *HeadPrm) (res *HeadRes, err error) {
-	err = e.exec(func() error {
+	err = e.execIfNotBlocked(func() error {
 		res, err = e.head(prm)
 		return err
 	})

pkg/local_object_storage/engine/inhume.go

@@ -52,7 +52,7 @@ var errInhumeFailure = errors.New("inhume operation failed")
 //
 // Returns an error if executions are blocked (see BlockExecution).
 func (e *StorageEngine) Inhume(prm *InhumePrm) (res *InhumeRes, err error) {
-	err = e.exec(func() error {
+	err = e.execIfNotBlocked(func() error {
 		res, err = e.inhume(prm)
 		return err
 	})

pkg/local_object_storage/engine/put.go

@@ -36,7 +36,7 @@ func (p *PutPrm) WithObject(obj *object.Object) *PutPrm {
 //
 // Returns an error if executions are blocked (see BlockExecution).
 func (e *StorageEngine) Put(prm *PutPrm) (res *PutRes, err error) {
-	err = e.exec(func() error {
+	err = e.execIfNotBlocked(func() error {
 		res, err = e.put(prm)
 		return err
 	})

pkg/local_object_storage/engine/range.go

@@ -63,7 +63,7 @@ func (r *RngRes) Object() *object.Object {
 //
 // Returns an error if executions are blocked (see BlockExecution).
 func (e *StorageEngine) GetRange(prm *RngPrm) (res *RngRes, err error) {
-	err = e.exec(func() error {
+	err = e.execIfNotBlocked(func() error {
 		res, err = e.getRange(prm)
 		return err
 	})

pkg/local_object_storage/engine/select.go

@@ -50,7 +50,7 @@ func (r *SelectRes) AddressList() []*object.Address {
 //
 // Returns an error if executions are blocked (see BlockExecution).
 func (e *StorageEngine) Select(prm *SelectPrm) (res *SelectRes, err error) {
-	err = e.exec(func() error {
+	err = e.execIfNotBlocked(func() error {
 		res, err = e._select(prm)
 		return err
 	})
@@ -111,7 +111,7 @@ func (e *StorageEngine) _select(prm *SelectPrm) (*SelectRes, error) {
 //
 // Returns an error if executions are blocked (see BlockExecution).
 func (e *StorageEngine) List(limit uint64) (res *SelectRes, err error) {
-	err = e.exec(func() error {
+	err = e.execIfNotBlocked(func() error {
 		res, err = e.list(limit)
 		return err
 	})