ebpfPsaDigest.h

/*
Copyright 2022-present Orange
 
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 BACKENDS_EBPF_PSA_EXTERNS_EBPFPSADIGEST_H_
#define BACKENDS_EBPF_PSA_EXTERNS_EBPFPSADIGEST_H_
 
#include "backends/ebpf/ebpfObject.h"
#include "backends/ebpf/ebpfProgram.h"
 
namespace P4::EBPF {
 
class DeparserBodyTranslatorPSA;
 
class EBPFDigestPSA : public EBPFObject {
 private:
    cstring instanceName;
    const EBPFProgram *program;
    cstring valueTypeName;
    const IR::Declaration_Instance *declaration;
    int maxDigestQueueSize = 128;
 
 public:
    EBPFType *valueType;
    EBPFDigestPSA(const EBPFProgram *program, const IR::Declaration_Instance *di);
 
    void emitTypes(CodeBuilder *builder);
    void emitInstance(CodeBuilder *builder) const;
    void processMethod(CodeBuilder *builder, cstring method, const IR::MethodCallExpression *expr,
                       DeparserBodyTranslatorPSA *visitor);
 
    virtual void emitPushElement(CodeBuilder *builder, const IR::Expression *elem,
                                 Inspector *codegen) const;
    virtual void emitPushElement(CodeBuilder *builder, cstring elem) const;
};
 
}  // namespace P4::EBPF
 
#endif /* BACKENDS_EBPF_PSA_EXTERNS_EBPFPSADIGEST_H_ */