| // |
| // Copyright 2022 gRPC authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #ifndef GRPC_SRC_CORE_EXT_XDS_XDS_HEALTH_STATUS_H |
| #define GRPC_SRC_CORE_EXT_XDS_XDS_HEALTH_STATUS_H |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <string> |
| |
| #include "absl/strings/string_view.h" |
| #include "absl/types/optional.h" |
| #include "absl/types/span.h" |
| |
| #include "src/core/lib/resolver/server_address.h" |
| |
| namespace grpc_core { |
| |
| class XdsHealthStatus { |
| public: |
| enum HealthStatus { kUnknown, kHealthy, kDraining }; |
| |
| // Returns an XdsHealthStatus for supported enum values, else nullopt. |
| static absl::optional<XdsHealthStatus> FromUpb(uint32_t status); |
| static absl::optional<XdsHealthStatus> FromString(absl::string_view status); |
| |
| explicit XdsHealthStatus(HealthStatus status) : status_(status) {} |
| |
| HealthStatus status() const { return status_; } |
| |
| bool operator==(const XdsHealthStatus& other) const { |
| return status_ == other.status_; |
| } |
| |
| const char* ToString() const; |
| |
| private: |
| HealthStatus status_; |
| }; |
| |
| class XdsHealthStatusSet { |
| public: |
| XdsHealthStatusSet() = default; |
| |
| explicit XdsHealthStatusSet(absl::Span<const XdsHealthStatus> statuses) { |
| for (XdsHealthStatus status : statuses) { |
| Add(status); |
| } |
| } |
| |
| bool operator==(const XdsHealthStatusSet& other) const { |
| return status_mask_ == other.status_mask_; |
| } |
| |
| void Clear() { status_mask_ = 0; } |
| |
| void Add(XdsHealthStatus status) { status_mask_ |= (0x1 << status.status()); } |
| |
| bool Contains(XdsHealthStatus status) const { |
| return status_mask_ & (0x1 << status.status()); |
| } |
| |
| private: |
| int status_mask_ = 0; |
| }; |
| |
| bool operator<(const XdsHealthStatus& hs1, const XdsHealthStatus& hs2); |
| |
| class XdsEndpointHealthStatusAttribute |
| : public ServerAddress::AttributeInterface { |
| public: |
| static const char* kKey; |
| |
| explicit XdsEndpointHealthStatusAttribute(XdsHealthStatus status) |
| : status_(status) {} |
| |
| XdsHealthStatus status() const { return status_; } |
| |
| std::unique_ptr<AttributeInterface> Copy() const override { |
| return std::make_unique<XdsEndpointHealthStatusAttribute>(status_); |
| } |
| |
| int Cmp(const AttributeInterface* other) const override; |
| |
| std::string ToString() const override; |
| |
| private: |
| XdsHealthStatus status_; |
| }; |
| |
| } // namespace grpc_core |
| |
| #endif // GRPC_SRC_CORE_EXT_XDS_XDS_HEALTH_STATUS_H |