Solidity-Logging-Library

An expensive mid-level library to do loggings in smart contracts .

example

import 'logging.sol';

contract MyContract is logging {

  function MyContract() {
    logging.log("Initiated");
  }

  function logTest(string test) public{
    logging.log(test); //Gas Used By calling this function to write "test" = 65877
  }
}

view logs

Logging would log in two places for now, one the variable called lastLog and the other event log

MyContract.lastLog.call()
[1467913219, "Initiated"]

(event log)
00000000000000000000000000000000000000000000000000000000577e9299
0000000000000000000000000000000000000000000000000000000000000040
0000000000000000000000000000000000000000000000000000000000000009
496e697469617465640000000000000000000000000000000000000000000000

timestamp -> 577e9299 -> GMT: Thu, 07 Jul 2016 17:34:17 GMT  // http://www.epochconverter.com/hex
message -> 496e697469617465640000000000000000000000000000000000000000000000 -> "Initiated"

##TODO

1. Log Stack

• string[] public logStack; ?
• mapping (uint => Log[]) public logStack; ?

2. Optimize gas usage
3. Support more datatypes (address, bytes, uint)

• maybe using a toBytes converter to write logs and a printLog() function to print logStack ?