Class CloudRedisClusterClient (2.31.0)

Configures and manages Cloud Memorystore for Redis clusters.

Google Cloud Memorystore for Redis Cluster

The redis.googleapis.com service implements the Google Cloud Memorystore for Redis API and defines the following resource model for managing Redis clusters:

The service works with a collection of cloud projects, named: /projects/*
Each project has a collection of available locations, named: /locations/*
Each location has a collection of Redis clusters, named: /clusters/*
As such, Redis clusters are resources of the form: /projects/{project_id}/locations/{location_id}/clusters/{instance_id}

Note that location_id must be a GCP region; for example:

projects/redpepper-1290/locations/us-central1/clusters/my-redis

We use API version selector for Flex APIs

The versioning strategy is release-based versioning
Our backend CLH only deals with the superset version (called v1main)
Existing backend for Redis Gen1 and MRR is not touched.
More details in go/redis-flex-api-versioning

Equality

Instances of this class created via copy-construction or copy-assignment always compare equal. Instances created with equal std::shared_ptr<*Connection> objects compare equal. Objects that compare equal share the same underlying resources.

Performance

Creating a new instance of this class is a relatively expensive operation, new objects establish new connections to the service. In contrast, copy-construction, move-construction, and the corresponding assignment operations are relatively efficient as the copies share all underlying resources.

Thread Safety

Concurrent access to different instances of this class, even if they compare equal, is guaranteed to work. Two or more threads operating on the same instance of this class is not guaranteed to work. Since copy-construction and move-construction is a relatively efficient operation, consider using such a copy when using this class from multiple threads.

Constructors

CloudRedisClusterClient(CloudRedisClusterClient const &)

Copy and move support

Parameter
Name	Description
	`CloudRedisClusterClient const &`

CloudRedisClusterClient(CloudRedisClusterClient &&)

Copy and move support

Parameter
Name	Description
	`CloudRedisClusterClient &&`

CloudRedisClusterClient(std::shared_ptr< CloudRedisClusterConnection >, Options)

Parameters
Name	Description
`connection`	`std::shared_ptr< CloudRedisClusterConnection >`
`opts`	`Options`

Operators

operator=(CloudRedisClusterClient const &)

Copy and move support

Parameter
Name	Description
	`CloudRedisClusterClient const &`

Returns
Type	Description
`CloudRedisClusterClient &`

operator=(CloudRedisClusterClient &&)

Copy and move support

Parameter
Name	Description
	`CloudRedisClusterClient &&`

Returns
Type	Description
`CloudRedisClusterClient &`

Functions

ListClusters(std::string const &, Options)

Lists all Redis clusters owned by a project in either the specified location (region) or all locations.

The location should have the following format:

projects/{project_id}/locations/{location_id}

If location_id is specified as - (wildcard), then all regions available to the project are queried, and the results are aggregated.

Parameters
Name	Description
`parent`	`std::string const &` Required. The resource name of the cluster location using the form: `projects/{project_id}/locations/{location_id}` where `location_id` refers to a GCP region.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::cloud::redis::cluster::v1::Cluster >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.cloud.redis.cluster.v1.Cluster, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListClusters(google::cloud::redis::cluster::v1::ListClustersRequest, Options)

Lists all Redis clusters owned by a project in either the specified location (region) or all locations.

The location should have the following format:

projects/{project_id}/locations/{location_id}

If location_id is specified as - (wildcard), then all regions available to the project are queried, and the results are aggregated.

Parameters
Name	Description
`request`	`google::cloud::redis::cluster::v1::ListClustersRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.redis.cluster.v1.ListClustersRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::cloud::redis::cluster::v1::Cluster >

GetCluster(std::string const &, Options)

Gets the details of a specific Redis cluster.

Parameters
Name	Description
`name`	`std::string const &` Required. Redis cluster resource name using the form: `projects/{project_id}/locations/{location_id}/clusters/{cluster_id}` where `location_id` refers to a GCP region.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::redis::cluster::v1::Cluster >`	the result of the RPC. The response message type (google.cloud.redis.cluster.v1.Cluster) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetCluster(google::cloud::redis::cluster::v1::GetClusterRequest const &, Options)

Gets the details of a specific Redis cluster.

Parameters
Name	Description
`request`	`google::cloud::redis::cluster::v1::GetClusterRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.redis.cluster.v1.GetClusterRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::redis::cluster::v1::Cluster >`	the result of the RPC. The response message type (google.cloud.redis.cluster.v1.Cluster) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

UpdateCluster(google::cloud::redis::cluster::v1::Cluster const &, google::protobuf::FieldMask const &, Options)

Updates the metadata and configuration of a specific Redis cluster.

Completed longrunning.Operation will contain the new cluster object in the response field. The returned operation is automatically deleted after a few hours, so there is no need to call DeleteOperation.

Parameters
Name	Description
`cluster`	`google::cloud::redis::cluster::v1::Cluster const &` Required. Update description. Only fields specified in update_mask are updated.
`update_mask`	`google::protobuf::FieldMask const &` Required. Mask of fields to update. At least one path must be supplied in this field. The elements of the repeated paths field may only include these fields from Cluster: `size_gb` `replica_count`
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::redis::cluster::v1::Cluster > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.cloud.redis.cluster.v1.Cluster proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

UpdateCluster(NoAwaitTag, google::cloud::redis::cluster::v1::Cluster const &, google::protobuf::FieldMask const &, Options)

Updates the metadata and configuration of a specific Redis cluster.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`cluster`	`google::cloud::redis::cluster::v1::Cluster const &`
`update_mask`	`google::protobuf::FieldMask const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

UpdateCluster(google::cloud::redis::cluster::v1::UpdateClusterRequest const &, Options)

Updates the metadata and configuration of a specific Redis cluster.

Parameters
Name	Description
`request`	`google::cloud::redis::cluster::v1::UpdateClusterRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.redis.cluster.v1.UpdateClusterRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::redis::cluster::v1::Cluster > >

UpdateCluster(NoAwaitTag, google::cloud::redis::cluster::v1::UpdateClusterRequest const &, Options)

Updates the metadata and configuration of a specific Redis cluster.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`request`	`google::cloud::redis::cluster::v1::UpdateClusterRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

UpdateCluster(google::longrunning::Operation const &, Options)

Updates the metadata and configuration of a specific Redis cluster.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::cloud::redis::cluster::v1::Cluster > >`

DeleteCluster(std::string const &, Options)

Deletes a specific Redis cluster.

Cluster stops serving and data is deleted.

Parameters
Name	Description
`name`	`std::string const &` Required. Redis cluster resource name using the form: `projects/{project_id}/locations/{location_id}/clusters/{cluster_id}` where `location_id` refers to a GCP region.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::protobuf::Any > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.protobuf.Any proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

DeleteCluster(NoAwaitTag, std::string const &, Options)

Deletes a specific Redis cluster.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`name`	`std::string const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

DeleteCluster(google::cloud::redis::cluster::v1::DeleteClusterRequest const &, Options)

Deletes a specific Redis cluster.

Cluster stops serving and data is deleted.

Parameters
Name	Description
`request`	`google::cloud::redis::cluster::v1::DeleteClusterRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.redis.cluster.v1.DeleteClusterRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::protobuf::Any > >

A future that becomes satisfied when the LRO (Long Running Operation) completes or the polling policy in effect for this call is exhausted. The future is satisfied with an error if the LRO completes with an error or the polling policy is exhausted. In this case the StatusOr returned by the future contains the error. If the LRO completes successfully the value of the future contains the LRO's result. For this RPC the result is a google.protobuf.Any proto message. The C++ class representing this message is created by Protobuf, using the Protobuf mapping rules.

DeleteCluster(NoAwaitTag, google::cloud::redis::cluster::v1::DeleteClusterRequest const &, Options)

Deletes a specific Redis cluster.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`request`	`google::cloud::redis::cluster::v1::DeleteClusterRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

DeleteCluster(google::longrunning::Operation const &, Options)

Deletes a specific Redis cluster.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::protobuf::Any > >`

CreateCluster(std::string const &, google::cloud::redis::cluster::v1::Cluster const &, std::string const &, Options)

Creates a Redis cluster based on the specified properties.

The creation is executed asynchronously and callers may check the returned operation to track its progress. Once the operation is completed the Redis cluster will be fully functional. The completed longrunning.Operation will contain the new cluster object in the response field.

The returned operation is automatically deleted after a few hours, so there is no need to call DeleteOperation.

Parameters
Name	Description
`parent`	`std::string const &` Required. The resource name of the cluster location using the form: `projects/{project_id}/locations/{location_id}` where `location_id` refers to a GCP region.
`cluster`	`google::cloud::redis::cluster::v1::Cluster const &` Required. The cluster that is to be created.
`cluster_id`	`std::string const &` Required. The logical name of the Redis cluster in the customer project with the following restrictions: Must contain only lowercase letters, numbers, and hyphens. Must start with a letter. Must be between 1-63 characters. Must end with a number or a letter. Must be unique within the customer project / location
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::redis::cluster::v1::Cluster > >

CreateCluster(NoAwaitTag, std::string const &, google::cloud::redis::cluster::v1::Cluster const &, std::string const &, Options)

Creates a Redis cluster based on the specified properties.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`parent`	`std::string const &`
`cluster`	`google::cloud::redis::cluster::v1::Cluster const &`
`cluster_id`	`std::string const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

CreateCluster(google::cloud::redis::cluster::v1::CreateClusterRequest const &, Options)

Creates a Redis cluster based on the specified properties.

The returned operation is automatically deleted after a few hours, so there is no need to call DeleteOperation.

Parameters
Name	Description
`request`	`google::cloud::redis::cluster::v1::CreateClusterRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.redis.cluster.v1.CreateClusterRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

future< StatusOr< google::cloud::redis::cluster::v1::Cluster > >

CreateCluster(NoAwaitTag, google::cloud::redis::cluster::v1::CreateClusterRequest const &, Options)

Creates a Redis cluster based on the specified properties.

Specifying the NoAwaitTag immediately returns the [google::longrunning::Operation] that corresponds to the Long Running Operation that has been started. No polling for operation status occurs.

Parameters
Name	Description
	`NoAwaitTag`
`request`	`google::cloud::redis::cluster::v1::CreateClusterRequest const &`
`opts`	`Options`

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`

CreateCluster(google::longrunning::Operation const &, Options)

Creates a Redis cluster based on the specified properties.

This method accepts a google::longrunning::Operation that corresponds to a previously started Long Running Operation (LRO) and polls the status of the LRO in the background.

Parameters
Name	Description
`operation`	`google::longrunning::Operation const &`
`opts`	`Options`

Returns
Type	Description
`future< StatusOr< google::cloud::redis::cluster::v1::Cluster > >`

GetClusterCertificateAuthority(std::string const &, Options)

Gets the details of certificate authority information for Redis cluster.

Parameters
Name	Description
`name`	`std::string const &` Required. Redis cluster certificate authority resource name using the form: `projects/{project_id}/locations/{location_id}/clusters/{cluster_id}/certificateAuthority` where `location_id` refers to a GCP region.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::redis::cluster::v1::CertificateAuthority >`	the result of the RPC. The response message type (google.cloud.redis.cluster.v1.CertificateAuthority) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetClusterCertificateAuthority(google::cloud::redis::cluster::v1::GetClusterCertificateAuthorityRequest const &, Options)

Gets the details of certificate authority information for Redis cluster.

Parameters
Name	Description
`request`	`google::cloud::redis::cluster::v1::GetClusterCertificateAuthorityRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.redis.cluster.v1.GetClusterCertificateAuthorityRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::redis::cluster::v1::CertificateAuthority >`	the result of the RPC. The response message type (google.cloud.redis.cluster.v1.CertificateAuthority) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

ListLocations(google::cloud::location::ListLocationsRequest, Options)

Lists information about the supported locations for this service.

Parameters
Name	Description
`request`	`google::cloud::location::ListLocationsRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.location.ListLocationsRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::cloud::location::Location >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.cloud.location.Location, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

GetLocation(google::cloud::location::GetLocationRequest const &, Options)

Gets information about a location.

Parameters
Name	Description
`request`	`google::cloud::location::GetLocationRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.cloud.location.GetLocationRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::cloud::location::Location >`	the result of the RPC. The response message type (google.cloud.location.Location) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

ListOperations(std::string const &, std::string const &, Options)

Lists operations that match the specified filter in the request.

If the server doesn't support this method, it returns UNIMPLEMENTED.

NOTE: the name binding allows API services to override the binding to use different resource name schemes, such as users/*/operations. To override the binding, API services can add a binding such as "/v1/{name=users/*}/operations" to their service configuration. For backwards compatibility, the default name includes the operations collection id, however overriding users must ensure the name binding is the parent resource, without the operations collection id.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation's parent resource.
`filter`	`std::string const &` The standard list filter.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::longrunning::Operation >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.longrunning.Operation, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

ListOperations(google::longrunning::ListOperationsRequest, Options)

Lists operations that match the specified filter in the request.

If the server doesn't support this method, it returns UNIMPLEMENTED.

Parameters
Name	Description
`request`	`google::longrunning::ListOperationsRequest` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.ListOperationsRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns

Type Description

StreamRange< google::longrunning::Operation >

a StreamRange to iterate of the results. See the documentation of this type for details. In brief, this class has begin() and end() member functions returning a iterator class meeting the input iterator requirements. The value type for this iterator is a StatusOr as the iteration may fail even after some values are retrieved successfully, for example, if there is a network disconnect. An empty set of results does not indicate an error, it indicates that there are no resources meeting the request criteria. On a successful iteration the StatusOr<T> contains elements of type google.longrunning.Operation, or rather, the C++ class generated by Protobuf from that type. Please consult the Protobuf documentation for details on the Protobuf mapping rules.

GetOperation(std::string const &, Options)

Gets the latest state of a long-running operation.

Clients can use this method to poll the operation result at intervals as recommended by the API service.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation resource.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`	the result of the RPC. The response message type (google.longrunning.Operation) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

GetOperation(google::longrunning::GetOperationRequest const &, Options)

Gets the latest state of a long-running operation.

Clients can use this method to poll the operation result at intervals as recommended by the API service.

Parameters
Name	Description
`request`	`google::longrunning::GetOperationRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.GetOperationRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`StatusOr< google::longrunning::Operation >`	the result of the RPC. The response message type (google.longrunning.Operation) is mapped to a C++ class using the Protobuf mapping rules. If the request fails, the `StatusOr` contains the error details.

DeleteOperation(std::string const &, Options)

Deletes a long-running operation.

This method indicates that the client is no longer interested in the operation result. It does not cancel the operation. If the server doesn't support this method, it returns google.rpc.Code.UNIMPLEMENTED.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation resource to be deleted.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

DeleteOperation(google::longrunning::DeleteOperationRequest const &, Options)

Deletes a long-running operation.

Parameters
Name	Description
`request`	`google::longrunning::DeleteOperationRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.DeleteOperationRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

CancelOperation(std::string const &, Options)

Starts asynchronous cancellation on a long-running operation.

The server makes a best effort to cancel the operation, but success is not guaranteed. If the server doesn't support this method, it returns google.rpc.Code.UNIMPLEMENTED. Clients can use Operations.GetOperation or other methods to check whether the cancellation succeeded or whether the operation completed despite cancellation. On successful cancellation, the operation is not deleted; instead, it becomes an operation with an Operation.error value with a google.rpc.Status.code of 1, corresponding to Code.CANCELLED.

Parameters
Name	Description
`name`	`std::string const &` The name of the operation resource to be cancelled.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.

CancelOperation(google::longrunning::CancelOperationRequest const &, Options)

Starts asynchronous cancellation on a long-running operation.

Parameters
Name	Description
`request`	`google::longrunning::CancelOperationRequest const &` Unary RPCs, such as the one wrapped by this function, receive a single `request` proto message which includes all the inputs for the RPC. In this case, the proto message is a google.longrunning.CancelOperationRequest. Proto messages are converted to C++ classes by Protobuf, using the Protobuf mapping rules.
`opts`	`Options` Optional. Override the class-level options, such as retry and backoff policies.

Returns
Type	Description
`Status`	a `Status` object. If the request failed, the status contains the details of the failure.