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64 bit assembler => UASM Assembler Development => Topic started by: six_L on February 16, 2021, 04:36:26 AM

Title: catwalk
Post by: six_L on February 16, 2021, 04:36:26 AM

the CatWalk example of thread control was written by Ron Thomas long times ago. it was a better example about thread control.
i translated it into x64 Uasm style. and added these "ExitThread,Ret "s function for a thread Exit.
pay attention to:
1. can't use ExitThread in your main thread, Use only own threads which will be exited.
2. monitoring the number of execution threads. 
3. relate to I/O, DLL, MEMORY. "RET" is best. "ExitThread" is better. "TerminateThread" isn't good on unless necessary

Title: Re: catwalk
Post by: six_L on February 16, 2021, 04:41:49 AM

res1

Title: Re: catwalk
Post by: six_L on February 16, 2021, 04:43:23 AM

res2

Title: Re: catwalk
Post by: Biterider on February 16, 2021, 04:53:42 AM

Hi six_L

It works very well. Congrats  :thumbsup:
Nice work!

Biterider

Title: Re: catwalk
Post by: Gunther on February 16, 2021, 05:53:42 AM

Works fine here. The sound is funny.  :thumbsup:

Gunther

Title: Re: catwalk
Post by: TouEnMasm on February 16, 2021, 09:18:26 PM

 :thumbsup:

Find a little problem at rebuild.

Quote

      ;SendDlgItemMessageA PROTO hDlg:HWND ,nIDDlgItem:DWORD ,Msg:DWORD ,wParam:WPARAM ,lParam:LPARAM

WPARAM is a qword in X64 this made ThPriority1 (2) qword

Title: Re: catwalk
Post by: six_L on February 17, 2021, 05:47:37 AM

hi: Biterider,Gunther,TouEnMasm
thank for your kind words and test.
especially,thank TouEnMasm for finding the error.

Code: [Select]

invoke SendDlgItemMessage, hdwnd, IDD_LB1, LB_GETCURSEL, 0,0
mov ThPriority1, rax
  invoke SendDlgItemMessage, hdwnd, IDD_LB2, LB_GETCURSEL, 0,0
mov ThPriority2, rax

mov rax,ThPriority1
sub eax, HOFFSET
  invoke SetThreadPriority, hThread1, eax

mov rax,ThPriority2
sub eax, HOFFSET
invoke SetThreadPriority, hThread2, eax
return TRUE


Quote

SetThreadPriority function (processthreadsapi.h)
Sets the priority value for the specified thread. This value, together with the priority class of the thread's process, determines the thread's base priority level.
Syntax
C++

BOOL SetThreadPriority(
  HANDLE hThread,
  int    nPriority
);

Title: Re: catwalk
Post by: Gunther on February 17, 2021, 08:27:18 AM

Quote from: six_L on February 17, 2021, 05:47:37 AM

hi: Biterider,Gunther,TouEnMasm
thank for your kind words and test.
especially,thank TouEnMasm for finding the error.

you're welcome. 

Good catch TouEnMasm.  :thup:

Gunther

Title: Re: catwalk
Post by: TouEnMasm on February 17, 2021, 08:56:32 PM

The SetThreadPriority parameters are a bit old.https://docs.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-setthreadpriority (https://docs.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-setthreadpriority)
I have changed those old parameters by the new in the upper link.
I have also added some various error messages.
bad parameters could be :

Quote

This value can be specified only if hThread is a handle to the current thread. The function fails

take care of that

Title: Re: catwalk
Post by: six_L on February 19, 2021, 03:55:45 AM

hi,TouEnMasm
thank for you'd done on updating. :thumbsup:
There are more functions of thread control:
1. update to 9 levels priority;
2. add to the errors checking;
;----------------------------------------------
the deeper impression is used to translate between the list index and the priority index.