Problem on capturing system Shutdown Post: 302847709

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Top Forums Programming Problem on capturing system Shutdown Post 302847709 by hakermania on Tuesday 27th of August 2013 03:10:38 PM

08-27-2013

Registered User

Quote:

Originally Posted by Corona688

I think you just answered your own question. You can give it more than a chance -- you can actually do so. Async-safe calls include open(), close(), read(), and write() among many other things. All you need.

So you claim that if I make a sync-safe function using the above sync-safe functions, then the handler will be executed? And if this is true then how does the system determine:

a) Where in the memory the handler sits for each application
b) If the handler is sync-safe or sync-unsafe

Also, this is still a question:

What different does the system do instead of sending SIGTERM, waiting for the process to exit, and, after timing out, sending SIGKILL? Because it does something different, it not only sends SIGTERM, because if I send it, it just works.

hakermania

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gldeletesync

GLDELETESYNC(3G)						   OpenGL Manual						  GLDELETESYNC(3G)

NAME

       glDeleteSync - delete a sync object

C SPECIFICATION

       void glDeleteSync(GLsync sync);

PARAMETERS

       sync
	   The sync object to be deleted.

DESCRIPTION

       glDeleteSync deletes the sync object specified by sync. If the fence command corresponding to the specified sync object has completed, or
       if no glWaitSync() or glClientWaitSync() commands are blocking on sync, the object is deleted immediately. Otherwise, sync is flagged for
       deletion and will be deleted when it is no longer associated with any fence command and is no longer blocking any glWaitSync() or
       glClientWaitSync() command. In either case, after glDeleteSync returns, the name sync is invalid and can no longer be used to refer to the
       sync object.

       glDeleteSync will silently ignore a sync value of zero.

NOTES

       glSync is only supported if the GL version is 3.2 or greater, or if the ARB_sync extension is supported.

ERRORS

       GL_INVALID_VALUE is generated if sync is neither zero or the name of a sync object.

SEE ALSO

       glFenceSync(), glWaitSync(), glClientWaitSync()

COPYRIGHT

       Copyright (C) 2010 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication
       License, v 1.0, 8 June 1999.  http://opencontent.org/openpub/.

AUTHORS

       opengl.org

opengl.org							    06/10/2014							  GLDELETESYNC(3G)