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EOSIO GET_CODE_HASH example
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| #pragma once | |
| #include <eosio/fixed_bytes.hpp> | |
| #include <eosio/name.hpp> | |
| #include <eosio/varint.hpp> | |
| #include <array> | |
| namespace eosio { | |
| namespace internal_use_do_not_use { | |
| extern "C" { | |
| __attribute__((eosio_wasm_import)) | |
| uint32_t get_code_hash(uint64_t account, uint32_t struct_version, char* data, uint32_t maxlen); | |
| } | |
| } | |
| // 43 bytes | |
| struct code_hash_result { | |
| unsigned_int struct_version; // 1 | |
| uint64_t code_sequence; // 8 | |
| checksum256 code_hash; // 32 | |
| uint8_t vm_type; // 1 | |
| uint8_t vm_version; // 1 | |
| EOSLIB_SERIALIZE(code_hash_result, (struct_version)(code_sequence)(code_hash)(vm_type)(vm_version)) | |
| }; | |
| code_hash_result get_code_hash(name account) { | |
| std::array<char, 64> buffer; | |
| auto size = internal_use_do_not_use::get_code_hash(account.value, 0, buffer.data(), buffer.size()); | |
| code_hash_result result{}; | |
| datastream<char*> ds(buffer.begin(), size); | |
| ds >> result; | |
| return result; | |
| } | |
| } |
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