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62 lines
1.4 KiB
62 lines
1.4 KiB
#pragma once
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#include <memory>
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#include <unordered_map>
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#include <llvm/ExecutionEngine/ExecutionEngine.h>
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#include <llvm/ExecutionEngine/ObjectCache.h>
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namespace dev
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{
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namespace eth
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{
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namespace jit
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{
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/// A bundle of objects and information needed for a contract execution
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class ExecBundle
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{
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public:
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std::unique_ptr<llvm::ExecutionEngine> engine;
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ExecBundle() = default;
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ExecBundle(ExecBundle&& _other):
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engine(std::move(_other.engine))
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{}
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ExecBundle(ExecBundle const&) = delete;
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void operator=(ExecBundle) = delete;
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};
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class ObjectCache : public llvm::ObjectCache
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{
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public:
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/// notifyObjectCompiled - Provides a pointer to compiled code for Module M.
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virtual void notifyObjectCompiled(llvm::Module const* _module, llvm::MemoryBuffer const* _object) final override;
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/// getObjectCopy - Returns a pointer to a newly allocated MemoryBuffer that
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/// contains the object which corresponds with Module M, or 0 if an object is
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/// not available. The caller owns both the MemoryBuffer returned by this
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/// and the memory it references.
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virtual llvm::MemoryBuffer* getObject(llvm::Module const* _module) final override;
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private:
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std::unordered_map<std::string, std::unique_ptr<llvm::MemoryBuffer>> m_map;
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};
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class Cache
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{
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public:
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using Key = std::string;
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static ExecBundle& registerExec(Key _key, ExecBundle&& _exec);
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static ExecBundle* findExec(Key _key);
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static ObjectCache* getObjectCache();
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};
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}
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}
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}
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