Macfly 1.0

Macfly project allows you to run one or more programs with a shifted clock compared to system clock.
Macfly project allows you to run one or more programs with a shifted clock compared to system clock. The programs have the same shift and are synchronized at the same time.

Components:

libmacfly.so library
macfly launcher
deloreand daemon managing the time shift
docbrown utility to send command to deloreand

libmacfly.so and macfly are written in C language, deloreand and docbrown are written in Python 2.3. The project is under GNU GPL license.

Here are some key features of "Macfly":

Your program doesn't require any recompilation
Resolution of one nanosecond (10-9)
Change clock speed function
Interactive mode (keyboard input) or daemon mode (interact with docbrown throw TCP socket) for deloreand
Do not require root account (except for the installation)

Examples:

Play video
Go forward
Change video playing speed (from 0.1x to 5x)
Works with: vlc

Play game
Change game clock speed (slower or faster)
Works with: xmoto, pingus

Send email in the past/future
Works with: kmail

Test program using clock:
date
xclock
etc.

Test special values dates:
Y2K bug: 1999/12/31 23:59:59 => 2000/1/1 00:00:00)
Year 2038 bug: 2038-01-19 04:14:07 => 1901-12-13 20:55:13
Epoch 0: 1970/1/1 00:00

Test tar program: decompress with a negative shift of 6 days display a warning
$ macfly tar xf ~/testcase.tar
tar: testcase/yellowdude.3ds: time stamp 2007-04-28 12:21:13 is 61425.168111 s in the future
tar: testcase/logo-kubuntu.png: time stamp 2007-04-28 12:21:13 is 61425.167332 s in the future

Limitations:

Unchanged clocks:
sleep() functions: sleep(), usleep(), nanosleep(), select()
kernel syscalls: sys_time(), sys_gettimeofday(), ...
direct access to hardware: /dev/rtc, RDTSC i386 instruction, ...

last updated on:
May 28th, 2007, 14:21 GMT
price:
FREE!
developed by:
Victor Stinner (INL)
homepage:
software.inl.fr
license type:
GPL (GNU General Public License) 
category:
ROOT \ System \ Monitoring

FREE!

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