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54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
#ifndef _HP_PROC_H_
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#define _HP_PROC_H_
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#include <cstdio>
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#include <map>
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#include "usr/usr.hpp"
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#include "util.hpp"
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/**
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* Contains helper functions regarding POSIX process execution and IPC between HP and SC.
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*/
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namespace proc
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{
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/**
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* Holds information that should be passed into the contract process.
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*/
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struct ContractExecArgs
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{
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// Map of user I/O buffers (map key: user binary public key).
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// The value is a pair holding consensus-verified input and contract-generated output.
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std::unordered_map<std::string, std::pair<std::string, std::string>> &userbufs;
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// Current HotPocket timestamp.
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uint64_t timestamp;
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ContractExecArgs(
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uint64_t _timestamp,
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std::unordered_map<std::string, std::pair<std::string, std::string>> &_userbufs) :
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userbufs(_userbufs)
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{
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timestamp = _timestamp;
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}
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};
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int exec_contract(const ContractExecArgs &args);
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int await_contract_execution();
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//------Internal-use functions for this namespace.
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int write_to_stdin(const ContractExecArgs &args);
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int write_verified_user_inputs(const ContractExecArgs &args);
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int read_contract_user_outputs(const ContractExecArgs &args);
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void close_unused_userfds(bool is_hp);
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void cleanup_userfds();
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} // namespace proc
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#endif |