[ANN][SIM] Simcoin - A Simple Coin

[NxtChg]

Do you have some vision how could Simcoin speed up many different crypto tasks. Not only send fast Simcoin to Simcoin?

You will also be able to send messages as fast as IM.

But in general I don't think much about it. My job is to make it work. Once it's working, people will come up with all sorts of ways to use it

[myyuxuan]

https://simxchg.com/ can't open now?

[wizzardTim]

https://simxchg.com/ can't open now?

It will open in a few days.

[NxtChg]

Progress report

This week the blockchain.info incident took almost 2 full days off my work schedule

And it was scary: a single missed assignment operator and in just three hours hundreds of thousands of dollars were stolen!

So instead of cutting more corners I've decided to start a major refactoring. Cleaned up a lot of junk and temporary scaffolding...

One thing that should have been done a long time ago is separation of client internals from the interface.

Now there will be just one library - simcoin.dll, which can act as both a client and a server, depending solely on the tasks loaded at startup.

So to implement a Simcoin client you just link to this library and call sim_start("client") and that's it, you can now use API calls to interact with it.

This separation will require a bit more work, but it's the right thing to do:

• all the critical functionality should be unified and combined inside one library for the core developers to focus on;
• it will be much easier to create clients;
• it will also be easier to port this library because there is no GUI, and then people can write native clients for each platform. I believe, this is the right way to do it, instead of using some monstrosity, like QT.

--

I also wrote a very simple (literally, under 100 lines of code), yet very fast key-value storage system, with a nice side effect of extremely fast insertion sort, and "sort on insert" is a common scenario in Simcoin internals.

For sequential keys the overhead is just 4 bytes and for random keys – about 21 bytes.

The average insertion time for 1 M items is only 480 ticks (!) and the average lookup time is 420 ticks. And you get a sorted set for free!

So I'm happy

[NxtChg]

The exchange is back online.

WARNING! Don't use the old deposit address - generate a new one!

[NxtChg]

Progress report

This week I continued refactoring, organizing all code into a single library, developing and documenting the Core API interface.

The interface is shaping quite nicely – all interactions are done via commands, which also serve as events if broadcast to all tasks. The host can subscribe to receive these events.

This design is extremely simple, yet very flexible, and it supports transparent API versioning for backwards compatibility. Similar to DirectX, only better

In sim_start(), you tell which version of API your app is using and then the glue code converts all commands and events transparently between the host and the core.

This is important, because it allows applications to use the latest version of Simcoin core without the need to recompile.

Such interface also facilitates loose coupling and I like how it works now. Doing this was a good idea.

[popolite11]

The exchange is back online.

WARNING! Don't use the old deposit address - generate a new one!

Ok understood , thanks for letting us know.

[illiki23]

Sorry to say (and I hope I am wrong) but the opening of an exchange that only allows bitcoin deposits to trade for some fictional Simcoin assets really stinks of a scam.

It makes me nervous as I am an investor.

I hope you are a benevolent tentacled overlord and such.  

[KLONE::Vader]

Sorry to say (and I hope I am wrong) but the opening of an exchange that only allows bitcoin deposits to trade for some fictional Simcoin assets really stinks of a scam.

It makes me nervous as I am an investor.

I hope you are a benevolent tentacled overlord and such.  

exchange was a wish from the investors so no need to suspect anything bad...

[rlh]

FYI, Bter has worked with some coin IPOs in the past.  You could see if they are willing to let you transfer this over to their site.  You'll probably have to pay them a couple BTC, but since you raised IPO money, and some in the community might be willing to donate, thrm that could be a reasonable alternative.

Anyway, I don't consider this a scam, but the lone-exchange setup is a bit to much of a security tosk for me.  I want to buy in, but I've chosen to wait until this shows up on a bigger exchange, or there is a way to "withdraw" my stake.

[NxtChg]

Sorry to say (and I hope I am wrong) but the opening of an exchange that only allows bitcoin deposits to trade for some fictional Simcoin assets really stinks of a scam.

It makes me nervous as I am an investor.

As an "investor" you should have done your due diligence. The exchange was opened 6 months ago and much more money went through it than remains. I also operated another exchange and returned all the money when I had to close it.

So before you start throwing scam accusations, do your homework.

[NxtChg]

Today is almost exactly 9 months since Simcoin started (jeez, time really flies!).

To celebrate, all Simcoin stakeholders will get a small present today – everybody’s stake will be increased by 1%!

Happy Holidays!

[wizzardTim]

Thank you so much!!!! 

[cryptodevil]

Sweet! Cheers for that, Seasons Greetings to you and yours.

[Nxtblg]

Thanks a lot, and Merry Christmas to you.

[marek3ball-orig]

Thank you too!

[twistelaar]

Thanks

[pandher]

Thanks for the present Chg

[NxtChg]

Progress report

This week I continued switching tasks to the new scheme of commands and events, which I like very much – it organizes things nicely and gives you great flexibility.

For example, to work with the ini file before there were two functions: ini.get() and ini.set().

Now those functions are re-routed through commands. This instantly makes them available to the host application if it decides to store some of its settings in the ini file.

But that's not all - the host can easily intercept those commands and provide its own storage for all configuration variables!

The same way it can either send commands to write to the log file or intercept them to redirect log messages somewhere else.

It also makes it easier to debug – I wrote a special task that just listens to all passing commands and writes selected types into a file, so you can then examine the history of what was going on.

--

Also scanned my paper notes

[marek3ball-orig]

Holy shit ... BUY ...