Review Request: Speed limit in ftp kio slave

[Tushar Mehta]

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http://git.reviewboard.kde.org/r/102267/
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Review request for kdelibs.


Summary
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- This patch contains the basic code which will put the limit on download speed of the ftp data transfer.
- It is looking for "speed-limit" meta-data for deciding how much speed control is required.
- If this meta-data is not found, code will work as it was before and no speed control related code will come into picture.
- This patch is the most basic one which I have testing on my system and to the extent it is controlling the speed.
- Lets say if speed limit is 30 KBps then mostly will get the avg speed around 30 to 35 KBps.
- I am using QTime for measuring time elapsed between two socket read call and its precision is in millisecond. Looping is taking place in microsecond and thats why I am getting almost all the time 0 as time elapsed in between two calls.
- To solve the above problem usleep is introduced to make it sync with the timer.


Diffs
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  kioslave/ftp/CMakeLists.txt e080b02 
  kioslave/ftp/ftp.h 0bd375b 
  kioslave/ftp/ftp.cpp 655524a 
  kioslave/ftp/speedController.h PRE-CREATION 
  kioslave/ftp/speedController.cpp PRE-CREATION 

Diff: http://git.reviewboard.kde.org/r/102267/diff


Testing
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Thanks,

Tushar

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