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* Generate server boilerplate * fix
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,188 @@ | ||
| // Copyright 2024 Google LLC | ||
| // | ||
| // 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. | ||
|
|
||
| package ccgen | ||
|
|
||
| import ( | ||
| "slices" | ||
| "strings" | ||
| "text/template" | ||
|
|
||
| "github.com/openconfig/lemming/dataplane/apigen/docparser" | ||
| "github.com/openconfig/lemming/dataplane/apigen/saiast" | ||
| "github.com/openconfig/lemming/dataplane/apigen/typeinfo" | ||
| ) | ||
|
|
||
| func GenServer(doc *docparser.SAIInfo, sai *saiast.SAIAPI, protoOutDir, ccOutDir string) (map[string]string, error) { | ||
| files := make(map[string]string) | ||
| enums := enumFile{ | ||
| ProtoOutDir: protoOutDir, | ||
| CCOutDir: ccOutDir, | ||
| } | ||
| d, err := typeinfo.Data(doc, sai, "", "", ccOutDir, protoOutDir) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| for apiName, iface := range d.APIs { | ||
| var headerBuilder, implBuilder strings.Builder | ||
| if err := serverHdrTmpl.Execute(&headerBuilder, iface); err != nil { | ||
| return nil, err | ||
| } | ||
| if err := serverCCTmpl.Execute(&implBuilder, iface); err != nil { | ||
| return nil, err | ||
| } | ||
| files[apiName+".h"] = headerBuilder.String() | ||
| files[apiName+".cc"] = implBuilder.String() | ||
| enums.ProtoIncludes = append(enums.ProtoIncludes, apiName+".pb") | ||
| } | ||
| for name, enumDesc := range doc.Enums { | ||
| e := enum{ | ||
| SAIName: name, | ||
| ProtoName: saiast.TrimSAIName(name, true, false), | ||
| UnspecifiedName: saiast.TrimSAIName(name, false, true) + "_UNSPECIFIED", | ||
| } | ||
| if len(enumDesc) == 0 { | ||
| continue | ||
| } | ||
| seenVal := map[int]struct{}{} | ||
| for _, enumElemDesc := range enumDesc { | ||
| if _, ok := seenVal[enumElemDesc.Value]; ok { | ||
| continue | ||
| } | ||
| seenVal[enumElemDesc.Value] = struct{}{} | ||
| name := strings.TrimPrefix(enumElemDesc.Name, "SAI_") | ||
| // If the SAI name conflicts with unspecified proto name, then add SAI prefix, | ||
| // that way the proto enum value is always 1 greater than the c enum. | ||
| if name == e.UnspecifiedName { | ||
| name = strings.TrimSuffix(saiast.TrimSAIName(name, false, true), "_UNSPECIFIED") + "_SAI_UNSPECIFIED" | ||
| } | ||
| e.Elems = append(e.Elems, enumElem{ | ||
| SAIName: enumElemDesc.Name, | ||
| ProtoName: name, | ||
| }) | ||
| } | ||
| e.DefaultReturn = e.Elems[0].SAIName | ||
| enums.Enums = append(enums.Enums, e) | ||
| } | ||
| for name, attr := range doc.Attrs { | ||
| if _, ok := unsupportedEnum[name]; ok { | ||
| continue | ||
| } | ||
| e := enum{ | ||
| SAIName: "sai_" + strings.ToLower(name) + "_attr_t", | ||
| ProtoName: saiast.TrimSAIName(name+"_ATTR", true, false), | ||
| UnspecifiedName: saiast.TrimSAIName(name+"_ATTR", false, true) + "_UNSPECIFIED", | ||
| } | ||
| for _, val := range attr.ReadFields { | ||
| name := strings.TrimPrefix(val.EnumName, "SAI_") | ||
| // If the SAI name conflicts with unspecified proto name, then add SAI prefix, | ||
| // that way the proto enum value is always 1 greater than the c enum. | ||
| if name == e.UnspecifiedName { | ||
| name = strings.TrimSuffix(saiast.TrimSAIName(name+"_ATTR", false, true), "_UNSPECIFIED") + "_SAI_UNSPECIFIED" | ||
| } | ||
| e.Elems = append(e.Elems, enumElem{ | ||
| SAIName: val.EnumName, | ||
| ProtoName: name, | ||
| }) | ||
| } | ||
| e.DefaultReturn = e.Elems[0].SAIName | ||
| enums.Enums = append(enums.Enums, e) | ||
| } | ||
| slices.SortFunc(enums.Enums, func(a, b enum) int { return strings.Compare(a.SAIName, b.SAIName) }) | ||
| var headerBuilder, implBuilder strings.Builder | ||
| if err := enumHeaderTmpl.Execute(&headerBuilder, enums); err != nil { | ||
| return nil, err | ||
| } | ||
| if err := enumCCTmpl.Execute(&implBuilder, enums); err != nil { | ||
| return nil, err | ||
| } | ||
| files["enum.h"] = headerBuilder.String() | ||
| files["enum.cc"] = implBuilder.String() | ||
|
|
||
| return files, nil | ||
| } | ||
|
|
||
| var ( | ||
| serverHdrTmpl = template.Must(template.New("header").Parse(`// Copyright 2024 Google LLC | ||
| // | ||
| // 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 {{ .IncludeGuard }} | ||
| #define {{ .IncludeGuard }} | ||
| #include "{{ .ProtoOutDir }}/common.pb.h" | ||
| #include "{{ .ProtoOutDir }}/{{ .ProtoInclude }}.h" | ||
| #include "{{ .ProtoOutDir }}/{{ .GRPCInclude }}.h" | ||
| extern "C" { | ||
| #include "inc/sai.h" | ||
| } | ||
| extern "C" { | ||
| #include "experimental/saiextensions.h" | ||
| } | ||
| class {{ .ServiceName }} final : public lemming::dataplane::sai::{{ .ServiceName }}::Service { | ||
| public: | ||
| {{ range .Funcs }} | ||
| {{- if and .ProtoRPCName (not .IsStreaming) }} | ||
| grpc::Status {{ .ProtoRPCName }}(grpc::ServerContext* context, const lemming::dataplane::sai::{{ .ProtoRequestType }}* req, lemming::dataplane::sai::{{ .ProtoResponseType }}* resp); | ||
| {{- end }} | ||
| {{ end }} | ||
| {{ .APIType }} *api; | ||
| }; | ||
| #endif // {{ .IncludeGuard }} | ||
| `)) | ||
| serverCCTmpl = template.Must(template.New("header").Parse(`// Copyright 2024 Google LLC | ||
| // | ||
| // 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. | ||
| #include "{{ .CCOutDir }}/{{ .Header }}" | ||
| #include "{{ .CCOutDir }}/common.h" | ||
| #include "{{ .CCOutDir }}/enum.h" | ||
| #include "{{ .ProtoOutDir }}/common.pb.h" | ||
| #include "{{ .ProtoOutDir }}/{{ .ProtoInclude }}.h" | ||
| #include <glog/logging.h> | ||
| {{ range .Funcs }} | ||
| {{- if and .ProtoRPCName (not .IsStreaming) }} | ||
| grpc::Status {{ $.ServiceName }}::{{ .ProtoRPCName }}(grpc::ServerContext* context, const lemming::dataplane::sai::{{ .ProtoRequestType }}* req, lemming::dataplane::sai::{{ .ProtoResponseType }}* resp) { | ||
| return grpc::Status::OK; | ||
| } | ||
| {{- end }} | ||
| {{ end }} | ||
| `)) | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| cc_library( | ||
| name = "saiserver", | ||
| srcs = glob(["*.cc"]), | ||
| hdrs = glob( | ||
| ["*.h"], | ||
| ), | ||
| visibility = ["//visibility:public"], | ||
| deps = [ | ||
| "//dataplane/proto/sai:sai_cc_grpc", | ||
| "//dataplane/proto/sai:sai_cc_proto", | ||
| "@com_github_google_glog//:glog", | ||
| "@com_github_opencomputeproject_sai//:sai", | ||
| ], | ||
| ) |
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