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digitalmars.D.learn - Winamp plugin

reply "dnewbie" <run3 myopera.com> writes:
I'm writing a Winamp plugin in D. Winamp loads my plugin and 
everything is fine until I close Winamp. At this point, Winamp 
calls the Quit() function of my plugin and *after* that, Winamp 
crashes.

Here is the code.

D source
http://dpaste.dzfl.pl/e2b2f886


myplugin.def - .DEF file
-------------------------------
LIBRARY "ml_myplugind.dll"
EXETYPE NT
SUBSYSTEM WINDOWS
EXPORTS
	winampGetMediaLibraryPlugin
-------------------------------

Compile:
dmd myplugin.d myplugin.def -ofml_myplugind.dll -L/IMPLIB

Copy ml_myplugind.dll to 'C:\Program Files (x86)\Winamp\Plugins'

Restart Winamp and go to Options -> Preferences -> Plugins -> 
Media Library.
You'll see 'My Cool Plugin D' [ml_myplugind.dll]' that means the 
plugin was loaded.

Close Winamp. You'll see a message box 'Quit() from D', from the 
plugin and
MS-Windows displays a error dialog. Click more information and it 
says APPCRASH module ml_myplugind.dll.

I have tried the following C code which does the same thing, and 
I've got no APPCRASHES

http://pastebin.com/7t8jkfn8

I can't see what is wrong. Any help is appreciated.

More information about Winamp plugin:
http://wiki.winamp.com/wiki/Media_Library_Plugin
Jul 04 2012
parent reply Denis Shelomovskij <verylonglogin.reg gmail.com> writes:
05.07.2012 8:37, dnewbie пишет:

 I'm writing a Winamp plugin in D. Winamp loads my plugin and everything
 is fine until I close Winamp. At this point, Winamp calls the Quit()
 function of my plugin and *after* that, Winamp crashes.

 Here is the code.

 D source
 http://dpaste.dzfl.pl/e2b2f886


 myplugin.def - .DEF file
 -------------------------------
 LIBRARY "ml_myplugind.dll"
 EXETYPE NT
 SUBSYSTEM WINDOWS
 EXPORTS
      winampGetMediaLibraryPlugin
 -------------------------------

 Compile:
 dmd myplugin.d myplugin.def -ofml_myplugind.dll -L/IMPLIB

 Copy ml_myplugind.dll to 'C:\Program Files (x86)\Winamp\Plugins'

 Restart Winamp and go to Options -> Preferences -> Plugins -> Media
 Library.
 You'll see 'My Cool Plugin D' [ml_myplugind.dll]' that means the plugin
 was loaded.

 Close Winamp. You'll see a message box 'Quit() from D', from the plugin and
 MS-Windows displays a error dialog. Click more information and it says
 APPCRASH module ml_myplugind.dll.

 I have tried the following C code which does the same thing, and I've
 got no APPCRASHES

 http://pastebin.com/7t8jkfn8

 I can't see what is wrong. Any help is appreciated.

 More information about Winamp plugin:
 http://wiki.winamp.com/wiki/Media_Library_Plugin


What's your OS? If Windows XP, than D DLL can't be unloaded because of 
non-perfect TLS fixing technique (I created a "perfect" one but I never 
managed to prepare such projects for release so nobody knows about them).

And on any Windows Digital Mars C runtime behaves very nasty when it's 
dynamically loaded. IIRC, it do bad things when loaded in non-main with 
TLS index != 0 thread and when unloaded (IIRC, again, at least it closes 
handles).

-- 
Денис В. Шеломовский
Denis V. Shelomovskij
Jul 05 2012
parent reply "dnewbie" <run3 myopera.com> writes:
On Thursday, 5 July 2012 at 08:55:33 UTC, Denis Shelomovskij 
wrote:

 What's your OS? If Windows XP, than D DLL can't be unloaded 
 because of non-perfect TLS fixing technique (I created a 
 "perfect" one but I never managed to prepare such projects for 
 release so nobody knows about them).

 And on any Windows Digital Mars C runtime behaves very nasty 
 when it's dynamically loaded. IIRC, it do bad things when 
 loaded in non-main with TLS index != 0 thread and when unloaded 
 (IIRC, again, at least it closes handles).


Hi. OS is Windows7-64bit.
When I run Winamp in windbg, windbg crashes. The last information 
I can see is
'Module Unload: C:\WINDOWS\WINSXS\X86_....\MSVCR90.DLL'
Thanks.
Jul 05 2012
parent reply Denis Shelomovskij <verylonglogin.reg gmail.com> writes:
05.07.2012 18:13, dnewbie пишет:

 On Thursday, 5 July 2012 at 08:55:33 UTC, Denis Shelomovskij wrote:

 What's your OS? If Windows XP, than D DLL can't be unloaded because of
 non-perfect TLS fixing technique (I created a "perfect" one but I
 never managed to prepare such projects for release so nobody knows
 about them).

 And on any Windows Digital Mars C runtime behaves very nasty when it's
 dynamically loaded. IIRC, it do bad things when loaded in non-main
 with TLS index != 0 thread and when unloaded (IIRC, again, at least it
 closes handles).


 Hi. OS is Windows7-64bit.
 When I run Winamp in windbg, windbg crashes. The last information I can
 see is
 'Module Unload: C:\WINDOWS\WINSXS\X86_....\MSVCR90.DLL'
 Thanks.


I don't think I can add anything to my previous post. Sorry.

-- 
Денис В. Шеломовский
Denis V. Shelomovskij
Jul 05 2012
parent reply "dnewbie" <run3 myopera.com> writes:
It works without error when compiled by GDC.
Thanks.
Jul 05 2012
parent "dnewbie" <run3 myopera.com> writes:
On Friday, 6 July 2012 at 00:38:28 UTC, dnewbie wrote:

 It works without error when compiled by GDC.
 Thanks.


Here it is
http://my.opera.com/run3/blog/2012/07/12/copyto-winamp-plugin

It adds an item in Winamp 'Send to' menu
Jul 11 2012