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@ -28,7 +28,10 @@ |
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#include "src/core/ext/xds/xds_api.h" |
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#include "src/core/ext/xds/xds_bootstrap.h" |
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#include "src/core/ext/xds/xds_client_stats.h" |
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#include "src/core/ext/xds/xds_resource_type.h" |
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#include "src/core/ext/xds/xds_cluster.h" |
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#include "src/core/ext/xds/xds_endpoint.h" |
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#include "src/core/ext/xds/xds_listener.h" |
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#include "src/core/ext/xds/xds_route_config.h" |
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#include "src/core/lib/channel/channelz.h" |
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#include "src/core/lib/gprpp/dual_ref_counted.h" |
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#include "src/core/lib/gprpp/memory.h" |
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@ -36,7 +39,6 @@ |
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#include "src/core/lib/gprpp/ref_counted.h" |
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#include "src/core/lib/gprpp/ref_counted_ptr.h" |
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#include "src/core/lib/gprpp/sync.h" |
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#include "src/core/lib/iomgr/work_serializer.h" |
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namespace grpc_core { |
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@ -57,6 +59,67 @@ class XdsClient : public DualRefCounted<XdsClient> { |
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ABSL_EXCLUSIVE_LOCKS_REQUIRED(&work_serializer_) = 0; |
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}; |
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// TODO(roth): Consider removing these resource-type-specific APIs in
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// favor of some mechanism for automatic type-deduction for the generic
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// API.
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// Listener data watcher interface. Implemented by callers.
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class ListenerWatcherInterface : public ResourceWatcherInterface { |
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public: |
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virtual void OnListenerChanged(XdsListenerResource listener) = 0; |
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private: |
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void OnResourceChanged( |
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const XdsResourceType::ResourceData* resource) override { |
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OnListenerChanged( |
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static_cast<const XdsListenerResourceType::ListenerData*>(resource) |
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->resource); |
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} |
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}; |
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// RouteConfiguration data watcher interface. Implemented by callers.
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class RouteConfigWatcherInterface : public ResourceWatcherInterface { |
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public: |
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virtual void OnRouteConfigChanged(XdsRouteConfigResource route_config) = 0; |
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private: |
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void OnResourceChanged( |
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const XdsResourceType::ResourceData* resource) override { |
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OnRouteConfigChanged( |
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static_cast<const XdsRouteConfigResourceType::RouteConfigData*>( |
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resource) |
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->resource); |
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} |
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}; |
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// Cluster data watcher interface. Implemented by callers.
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class ClusterWatcherInterface : public ResourceWatcherInterface { |
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public: |
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virtual void OnClusterChanged(XdsClusterResource cluster_data) = 0; |
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private: |
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void OnResourceChanged( |
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const XdsResourceType::ResourceData* resource) override { |
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OnClusterChanged( |
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static_cast<const XdsClusterResourceType::ClusterData*>(resource) |
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->resource); |
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} |
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}; |
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// Endpoint data watcher interface. Implemented by callers.
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class EndpointWatcherInterface : public ResourceWatcherInterface { |
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public: |
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virtual void OnEndpointChanged(XdsEndpointResource update) = 0; |
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private: |
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void OnResourceChanged( |
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const XdsResourceType::ResourceData* resource) override { |
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OnEndpointChanged( |
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static_cast<const XdsEndpointResourceType::EndpointData*>(resource) |
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->resource); |
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} |
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}; |
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// Factory function to get or create the global XdsClient instance.
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// If *error is not GRPC_ERROR_NONE upon return, then there was
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// an error initializing the client.
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@ -96,6 +159,58 @@ class XdsClient : public DualRefCounted<XdsClient> { |
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ResourceWatcherInterface* watcher, |
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bool delay_unsubscription = false); |
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// Start and cancel listener data watch for a listener.
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// The XdsClient takes ownership of the watcher, but the caller may
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// keep a raw pointer to the watcher, which may be used only for
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// cancellation. (Because the caller does not own the watcher, the
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// pointer must not be used for any other purpose.)
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// If the caller is going to start a new watch after cancelling the
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// old one, it should set delay_unsubscription to true.
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void WatchListenerData(absl::string_view listener_name, |
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RefCountedPtr<ListenerWatcherInterface> watcher); |
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void CancelListenerDataWatch(absl::string_view listener_name, |
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ListenerWatcherInterface* watcher, |
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bool delay_unsubscription = false); |
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// Start and cancel route config data watch for a listener.
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// The XdsClient takes ownership of the watcher, but the caller may
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// keep a raw pointer to the watcher, which may be used only for
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// cancellation. (Because the caller does not own the watcher, the
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// pointer must not be used for any other purpose.)
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// If the caller is going to start a new watch after cancelling the
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// old one, it should set delay_unsubscription to true.
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void WatchRouteConfigData(absl::string_view route_config_name, |
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RefCountedPtr<RouteConfigWatcherInterface> watcher); |
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void CancelRouteConfigDataWatch(absl::string_view route_config_name, |
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RouteConfigWatcherInterface* watcher, |
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bool delay_unsubscription = false); |
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// Start and cancel cluster data watch for a cluster.
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// The XdsClient takes ownership of the watcher, but the caller may
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// keep a raw pointer to the watcher, which may be used only for
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// cancellation. (Because the caller does not own the watcher, the
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// pointer must not be used for any other purpose.)
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// If the caller is going to start a new watch after cancelling the
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// old one, it should set delay_unsubscription to true.
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void WatchClusterData(absl::string_view cluster_name, |
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RefCountedPtr<ClusterWatcherInterface> watcher); |
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void CancelClusterDataWatch(absl::string_view cluster_name, |
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ClusterWatcherInterface* watcher, |
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bool delay_unsubscription = false); |
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// Start and cancel endpoint data watch for a cluster.
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// The XdsClient takes ownership of the watcher, but the caller may
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// keep a raw pointer to the watcher, which may be used only for
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// cancellation. (Because the caller does not own the watcher, the
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// pointer must not be used for any other purpose.)
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// If the caller is going to start a new watch after cancelling the
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// old one, it should set delay_unsubscription to true.
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void WatchEndpointData(absl::string_view eds_service_name, |
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RefCountedPtr<EndpointWatcherInterface> watcher); |
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void CancelEndpointDataWatch(absl::string_view eds_service_name, |
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EndpointWatcherInterface* watcher, |
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bool delay_unsubscription = false); |
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// Adds and removes drop stats for cluster_name and eds_service_name.
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RefCountedPtr<XdsClusterDropStats> AddClusterDropStats( |
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absl::string_view lrs_server, absl::string_view cluster_name, |
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Mark D. Roth
3 years ago
committed by
GitHub