Job for someone who knows how to join mql4 and C

MQL5 Indicators Libraries

Specification

I am looking for someone who is good in C and MQL4 and can join them. If you are not he, maybe you could help by pointing me in the right direction to find such person.

I wish to have a connection monitor with login action coded.

Purpose: Prevent disconnections of terminal or long breaks in tick stream

Why: The terminal automatically attempts to login if it notices it is disconnected. The time before terminal find it self disconnected is depending on TCP/IP settings of the operating system. The time is long and a lot can happen.

This software would calculate the average tick interval and if tick is not received in a time depending on the average, it performs a login of the terminal (or rescan).

Challenges:

  • To my knowledge there is no function for login in MQL4. But the solution can be found here http://forum.mql4.com/15325#101492

  • Indicator start() function is called up on arrival of a new tick. Therefore an Indicator can not wait nor perform a task (e.g. login) if a tick does not arrive. I think this could be solved with a Script polling General Variables to which an Indicator writes.

General system Description - how I thought it could work

The average tick interval is calculated over number of ticks (set by user, TicksInAverage) in a Indicator. The interval and time of the last tick is then made available for the Script. The Script monitors if the time since last tick exceeds the average interval X time out factor (set by user TimeOutFactor).

Preliminary Requirements Specification
  • To work on windows 2003 and written in MQL4 and C. Expert Advisor, Indicator and/or script

  • Risks to unsuccessful login or rescan shall be addressed by coder. E.g. Does simulated key strokes pose a risk and why. This Requirements Specification may be edited accordingly.

  • A login or rescan shall take place when average tick interval X a factor (TimeOutFactor) is exceeded. The initiation of login or rescan shall take place before average tick interval X (TimeOutFactor+1) provided enough CPU speed.

  • The average tick interval shall be calculated using a certain amount of ticks (TicksInAverage)

  • The average tick interval shall not take into account interval in between two ticks separated by a login or rescan

  • A log file shall be written (text or CSV) containing following information separated with Tab or “;” . Date, Login Start , average tick interval, Login end time. E.g.:

    19/02/2012 Interval 0.3 Start 19:03:32 End 19:03:47

    Login is considered completed / ended after first received tick

  • User can set varibales TimeOutFactor, TicksInAverage, variable for choosing in between rescan or login



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Project information

Budget
100 - 300 USD
For the developer
90 - 270 USD
Deadline
from 10 to 20 day(s)