Skip to content

Instantly share code, notes, and snippets.

@tbfleming tbfleming/main.abi
Last active Oct 15, 2018

Embed
What would you like to do?
cib eos demo: self-destruct
{
"structs": [{
"name": "selfdestruct",
"base": "",
"fields": [
{"name":"user", "type":"account_name"}
]
},{
"name": "countdown",
"base": "",
"fields": [
{"name":"count", "type":"uint32"}
]
}],
"actions": [{
"name": "selfdestruct",
"type": "selfdestruct"
},{
"name": "countdown",
"type": "countdown"
}]
}
#include <eosiolib/eosio.hpp>
#include <eosiolib/transaction.hpp>
uint8_t deadcode[] = {
0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x01, 0x0a, 0x02, 0x60, 0x03, 0x7e, 0x7e, 0x7e,
0x00, 0x60, 0x00, 0x00, 0x02, 0x0d, 0x01, 0x03, 0x65, 0x6e, 0x76, 0x05, 0x61, 0x62, 0x6f, 0x72,
0x74, 0x00, 0x01, 0x03, 0x02, 0x01, 0x00, 0x04, 0x04, 0x01, 0x70, 0x00, 0x01, 0x05, 0x03, 0x01,
0x00, 0x01, 0x07, 0x09, 0x01, 0x05, 0x61, 0x70, 0x70, 0x6c, 0x79, 0x00, 0x01, 0x09, 0x06, 0x01,
0x00, 0x41, 0x01, 0x0b, 0x00, 0x0a, 0x07, 0x01, 0x05, 0x00, 0x10, 0x00, 0x00, 0x0b, 0x00, 0x15,
0x04, 0x6e, 0x61, 0x6d, 0x65, 0x01, 0x0e, 0x02, 0x00, 0x08, 0x69, 0x6d, 0x70, 0x6f, 0x72, 0x74,
0x24, 0x30, 0x01, 0x01, 0x31,
};
struct setcode {
uint64_t account_name;
uint8_t vmtype{0};
uint8_t vmversion{0};
eosio::bytes code{std::begin(deadcode), std::end(deadcode)};
};
struct countdown_s {
int count;
};
template<typename Action>
void send(uint64_t self, uint64_t sender_id, uint64_t account, uint64_t name, Action action) {
eosio::transaction t;
t.expiration = ::now() + 10;
t.region = 0;
t.ref_block_num = ::tapos_block_num();
t.ref_block_prefix = ::tapos_block_prefix();
t.actions.push_back(
eosio::action{
eosio::permission_level{self, N(active)},
account, name, std::move(action)});
t.send(sender_id, self);
}
struct destruct : eosio::contract {
destruct(account_name self) : contract{self} {}
void selfdestruct(account_name user) {
require_auth(user);
std::string s(60, '5');
eosio::print(s.c_str(), "\n");
eosio::print("5 User ", eosio::name{user}, " is someone.\n");
eosio::print("5 Therefore user ", eosio::name{user}, " is authorized.\n");
eosio::print("5 This contract will self-destruct in 5 blocks.\n");
eosio::print(s.c_str());
send(_self, 4, _self, N(countdown), countdown_s{4});
}
void countdown(int count) {
require_auth(_self);
std::string s(60, '0' + count);
eosio::print(s.c_str(), "\n");
eosio::print(s.c_str(), "\n");
eosio::print(s.c_str(), "\n");
if(count > 1)
send(_self, count - 1, _self, N(countdown), countdown_s{count - 1});
else
send(_self, count - 1, N(eosio), N(setcode), setcode{_self});
}
};
EOSIO_ABI(destruct, (selfdestruct)(countdown))
{
"actions": [{
"account": "test",
"name": "selfdestruct",
"authorization": [{
"actor": "test",
"permission": "active"
}],
"data": {
"user": "test"
}
}]
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.