China DOS Union

After the current tests... If everyone thinks it's good, please give me extra points. Hehe

The progress bar display problem of copying files has been initially solved!

Advantage: start /min copy path:\file name path:\ to run in multi-threaded way.
Difficulty: The problem of obtaining the hard disk copy file rate.
I wrote a batch file as a test, and this value is bytes per microsecond / 86000 (the result of rounding up).
Note that different specifications of hard disks have different results.
Need everyone to test by themselves. (I have solved it myself, and using it as a progress bar prompt is to estimate the copy time)

Algorithm idea.

1. Use the dir command to obtain the file size of the copied file.
2. Divide the file size by the hard disk transfer rate to get the delay time of the animation.
3. Use this time to write the animation.

I will directly give this code in the first floor below.
Note: The code is streamlined, and the first step is omitted.. (Because it's an algorithm :)

[ Last edited by flyinspace on 2007-4-1 at 02:34 PM ]

@echo off & SetLocal EnableDelayedExpansion
set BackSpace=
set RateBar=□
set Rate=0
set AllFile=1
set ExistFile=0
set FileName=Test.rar
set /a FileSize=42719467
set /a CopySpeed=86500
set /a UseTime=%FileSize%/%CopySpeed%
set /a ShowTime=%UseTime%/100
set Rate_Num=0
set Space_Num=11
set /p=Copying file: , time required: %UseTime% microseconds<nul & echo.
echo ---------------------------------------------------
rem start /min FileName
set /p=Currently completed: <nul
for /l %%i in (0,1,100) do (
set /a output=%%i%%10
if "!output!"=="0" (
rem echo The %%i Time
set /p=!BackSpace!<nul
set /a Space_Num=!Space_Num!-1
set /a Rate_Num=!Rate_Num!+1
call :PutChar !Rate_Num! !Space_Num!
)
if %%i LSS 10 set /p=: %%i%%<nul
if %%i GEQ 10 set /p=: %%i%%<nul
call :ProcDelay %ShowTime%
set /p=<nul
)
echo.
echo Copy completed!
echo.

goto EXIT
::::::::::::::Output space:::::::::::::::::::::::
:PutChar _num_ _a_
for /l %%i in (1,1,%1) do (
rem echo !RateBar!
set /p=!RateBar!<nul
)

for /l %%i in (1,1,%2) do (
set /p= <nul
)


goto :EOF
::::::::::::::Delay subroutine:::::::::::::::::::::
:ProcDelay _Delay_
for /f "tokens=1-4 delims=:. " %%i in ("%time%") do set start=%%i%%j%%k%%l
:_TimeReturn_
for /f "tokens=1-4 delims=:. " %%i in ("%time%") do set end=%%i%%j%%k%%l
set /a s=%end%-%start%
if %s% LSS %1 goto _TimeReturn_
ENDLOCAL & GOTO :EOF
:EXIT
pause

In fact, many codes in this are borrowed from others.
For example, the delay subroutine. (Author unknown)

But others are based on the algorithms in C++.
It is completed by using the characteristics of set /p.

This program is different from the progress bars already available on the Internet.
It is practical.

The idea is good, but the hard disk transfer rate generally varies greatly with the file size, and the microsecond value is too small, batch processing basically can't reflect it, and milliseconds are barely acceptable

[ Last edited by zh159 on 2007-4-1 at 03:10 PM ]

The idea raised by the upstairs is quite good.

Because it's proposing an algorithm.

So there's no judgment of errors...

In the actual batch processing example I wrote, my method is different...

If the size of the file is less than 86000 * 10, then there is no delay in the animation process...

2. For different hard drives, I obtain the speed of the hard drive based on the time taken to copy a cmd.exe to another disk as a reference...

3. Also, there is a judgment that if it's a copy within the same disk, the animation also has no delay.

This is the processing for practical application.

It's still in the testing phase, so I haven't shown it here.

The above algorithm is just to put forward my personal thoughts and discuss with everyone...

The actual code is already 32K in size...

And the testing is also very successful, but when copying very large files, it's a bit inaccurate, with an error of 1 to 3 seconds.

[ Last edited by flyinspace on 2007-4-1 at 03:27 PM ]

Where is there any confusion?

Running a command line X (such as COPY a large file) but it has to wait until it finishes to execute other code. Is there a way to make it execute and display with a progress bar at the same time?

Where should I add the command:

xcopy c:\abc\*.* /s d:\aaa /y