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daemon: allow printing N blocks from the end of the chain

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It's a very common usage (for my anyway) and avoids the need to
get the current height, paste, subtract one, etc
This commit is contained in:
moneromooo-monero 2019-11-04 17:36:46 +00:00
parent ff94771b47
commit a633f85da9
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GPG Key ID: 686F07454D6CEFC3
3 changed files with 43 additions and 4 deletions
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10
src/daemon/command_parser_executor.cpp
View File

@ -154,6 +154,16 @@ bool t_command_parser_executor::print_blockchain_info(const std::vector<std::str
}
uint64_t start_index = 0;
uint64_t end_index = 0;
if (args[0][0] == '-')
{
int64_t nblocks;
if(!epee::string_tools::get_xtype_from_string(nblocks, args[0]))
{
std::cout << "wrong number of blocks" << std::endl;
return false;
}
return m_executor.print_blockchain_info(nblocks, (uint64_t)-nblocks);
}
if(!epee::string_tools::get_xtype_from_string(start_index, args[0]))
{
std::cout << "wrong starter block index parameter" << std::endl;

35
src/daemon/rpc_command_executor.cpp
View File

@ -743,17 +743,46 @@ bool t_rpc_command_executor::print_net_stats()
return true;
}
bool t_rpc_command_executor::print_blockchain_info(uint64_t start_block_index, uint64_t end_block_index) {
bool t_rpc_command_executor::print_blockchain_info(int64_t start_block_index, uint64_t end_block_index) {
cryptonote::COMMAND_RPC_GET_BLOCK_HEADERS_RANGE::request req;
cryptonote::COMMAND_RPC_GET_BLOCK_HEADERS_RANGE::response res;
epee::json_rpc::error error_resp;
std::string fail_message = "Problem fetching info";
// negative: relative to the end
if (start_block_index < 0)
{
cryptonote::COMMAND_RPC_GET_INFO::request ireq;
cryptonote::COMMAND_RPC_GET_INFO::response ires;
if (m_is_rpc)
{
if (!m_rpc_client->rpc_request(ireq, ires, "/getinfo", fail_message.c_str()))
{
return true;
}
}
else
{
if (!m_rpc_server->on_get_info(ireq, ires) || ires.status != CORE_RPC_STATUS_OK)
{
tools::fail_msg_writer() << make_error(fail_message, ires.status);
return true;
}
}
if (start_block_index < 0 && (uint64_t)-start_block_index >= ires.height)
{
tools::fail_msg_writer() << "start offset is larger than blockchain height";
return true;
}
start_block_index = ires.height + start_block_index;
end_block_index = start_block_index + end_block_index - 1;
}
req.start_height = start_block_index;
req.end_height = end_block_index;
req.fill_pow_hash = false;
std::string fail_message = "Unsuccessful";
fail_message = "Failed calling getblockheadersrange";
if (m_is_rpc)
{
if (!m_rpc_client->json_rpc_request(req, res, "getblockheadersrange", fail_message.c_str()))

2
src/daemon/rpc_command_executor.h
View File

@ -85,7 +85,7 @@ public:
bool print_connections();
bool print_blockchain_info(uint64_t start_block_index, uint64_t end_block_index);
bool print_blockchain_info(int64_t start_block_index, uint64_t end_block_index);
bool set_log_level(int8_t level);