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RE: [ros-dev] Re: [ros-diffs] [gedmurphy] 19312: Improve stopping control of the service

by Murphy, Ged (Bolton)

> -----Original Message----- > From: Thomas Weidenmueller [mailto:w3seek@reactos.com] > Sent: 18 November 2005 12:03 > To: ReactOS Development List > Subject: Re: [ros-dev] Re: [ros-diffs] [gedmurphy] 19312: > Improve stopping control of the service > > > Murphy, Ged (Bolton) wrote: > > This function is new to me. > Now that you're writing multithreaded code it's about time to learn > about these functions ;) > > > I'm just doing a bit of research on it now to better > understand it, but > > could you just give me a bit of background of the > difference between this, > > and using something like a mutex or CS, and why it's better in this > > scenario? > Of course you can use mutexes or critical sections, but for > this purpose > interlocked operations are much more lightweight because with > mutexes or > critical sections you'd have to protect the read operation as > well. The > Interlocked* functions basically guarantee that a certain > operation on a > variable shared by multiple threads is performed in an atomic > matter. I > probably should mention that reads are always atomic, so reading a > variable with the size smaller or equal as the size of a > general purpose > register does not need to be protected, writes however have > to be protected. > > You should read the following articles: > http://msdn.microsoft.com/library/default.asp?url=/library/en- > us/dllproc/base/interlocked_variable_access.asp > http://blogs.msdn.com/oldnewthing/archive/2004/09/15/229915.aspx Thanks for the info, much appreciated. I've been reading up on Interlocked Variable Access this morning and have now implemented it into the code. Ged. ************************************************************************ The information contained in this message or any of its attachments is confidential and is intended for the exclusive use of the addressee. The information may also be legally privileged. The views expressed may not be company policy, but the personal views of the originator. If you are not the addressee, any disclosure, reproduction, distribution or other dissemination or use of this communication is strictly prohibited. If you have received this message in error, please contact postmaster(a)exideuk.co.uk <mailto:postmaster@exideuk.co.uk> and then delete this message. Exide Technologies is an industrial and transportation battery producer and recycler with operations in 89 countries. Further information can be found at www.exide.com

18 years, 10 months

RE: [ros-dev] Re: [ros-diffs] [gedmurphy] 19312: Improve stopping control of the service

by Murphy, Ged (Bolton)

> -----Original Message----- > From: Thomas Weidenmueller [mailto:w3seek@reactos.com] > Sent: 17 November 2005 23:38 > To: ReactOS Development List > Subject: Re: [ros-dev] Re: [ros-diffs] [gedmurphy] 19312: > Improve stopping control of the service > > > Ged Murphy wrote: > > Could you explain what you mean? > As you want to change the value of the variables which are used in a > multithreaded environment you need to used the Interlocked* > functions to > ensure an atomic change in all environments (UP, MP, ...), and also to > make sure it's portable. > > > Those variables are only modified within the base thread, all other > > threads just check the value and act upon it. > > Why would that not be thread safe? > You're assuming the code will only run on a x86 system. In > fact, as long > as the variables are aligned properly it is an atomic operation. But > don't forget the other architectures and possibly upcoming > technologies > based on x86 that could void this assumption. > > I have to admit that the code wouldn't break, even in circumstances > where the operation wouldn't be atomic, but technically the code still > isn't thread-safe this way. > > - Thomas This function is new to me. I'm just doing a bit of research on it now to better understand it, but could you just give me a bit of background of the difference between this, and using something like a mutex or CS, and why it's better in this scenario? Thanks, Ged. ************************************************************************ The information contained in this message or any of its attachments is confidential and is intended for the exclusive use of the addressee. The information may also be legally privileged. The views expressed may not be company policy, but the personal views of the originator. If you are not the addressee, any disclosure, reproduction, distribution or other dissemination or use of this communication is strictly prohibited. If you have received this message in error, please contact postmaster(a)exideuk.co.uk <mailto:postmaster@exideuk.co.uk> and then delete this message. Exide Technologies is an industrial and transportation battery producer and recycler with operations in 89 countries. Further information can be found at www.exide.com

18 years, 10 months

RE: [ros-dev] Microsoft Office files in the trunk

by Murphy, Ged (Bolton)

Mike Swanson wrote: > In the branch of press-media, there are two documents currently. An MS > Word and MS PowerPoint document. > > I'm calling for SVN committers for _no more_ MS Office documents. They > are a proprietary format, of which not all the features are currently > known. I recommend instead the use of OASIS OpenDocument. Not only > does it save much space, but it also does not contain any secrets in > which need to be reverse engineered to discover. > [...] > > Please, for the good of the project, use the free OpenDocument format. > If not for the reason of being open or free, but simply for the fact > that it ensures that everybody will be able to view such documents (no > need to buy any pricey office suites here!). I disagree with this. I don't know how to use oo.o or variants, and I don't intend on learning something I have no interest in. I'm currently putting together a presentation for the speeches I have coming up on ReactOS. If a rule was put in place where we could only commit OpenDocument files, I would simply not put it into the repository and would instead share it with anyone who wanted it via email. This isn't because I'm being awkward, it's because I have no time or interest to learn a new office suite .... and I certainly don't want to install oo.o on my machine. I suppose it's this attitude which keeps MS Office up as a monopoly, which now make me realise why they don't want to support OpenDocument. ************************************************************************ The information contained in this message or any of its attachments is confidential and is intended for the exclusive use of the addressee. The information may also be legally privileged. The views expressed may not be company policy, but the personal views of the originator. If you are not the addressee, any disclosure, reproduction, distribution or other dissemination or use of this communication is strictly prohibited. If you have received this message in error, please contact postmaster(a)exideuk.co.uk <mailto:postmaster@exideuk.co.uk> and then delete this message. Exide Technologies is an industrial and transportation battery producer and recycler with operations in 89 countries. Further information can be found at www.exide.com

18 years, 10 months

Re: [ros-diffs] [gedmurphy] 19312: Improve stopping control of the service

by Thomas Weidenmueller

gedmurphy(a)svn.reactos.com wrote: > Improve stopping control of the service > > @@ -137,14 +137,14 @@ > > { > case SERVICE_CONTROL_SHUTDOWN: /* fall through */ > case SERVICE_CONTROL_STOP: > > - bShutDownFlag = TRUE; > > + bShutDown = TRUE; > > UpdateStatus(SERVICE_STOP_PENDING, -1); > break; > case SERVICE_CONTROL_PAUSE: > > - bPauseFlag = TRUE; > > + bPause = TRUE; > > break; > case SERVICE_CONTROL_CONTINUE: > > - bPauseFlag = FALSE; > > + bPause = FALSE; You might want to use InterlockedExchange to make it thread-safe. - Thomas

18 years, 10 months

RE: [ros-svn] [gvg] 19303: Wine-0_9_1 vendor import

by Ge van Geldorp

> From: gvg(a)svn.reactos.com > > Wine-0_9_1 vendor import "svn update" will probably fail, you'll need to delete lib\dplay + lib\dplayx and do a second "svn update". Sorry about this, there seems to be no way around it. GvG

18 years, 10 months

Freeldr Question

by Alex Ionescu

Hi, Freeldr currently contains an ugly (imo) wrapper around the GUI where every drawing operation is supposed to have multiple "modes" (some fancy 3d gizmo whizmo GUI and the normal text-mode interface). I would really like to simply this interface and make the drawing operations much simpler and just draw, instead of going through all the hoops they do now. But before I do, does anyone have any objections? Is anyone working on fancy 3D GUI for Freeldr, or can I go ahead with my changes? Note nothing would change to the user, everything will look and act the exact same way as it does now. Best regards, Alex Ionescu

18 years, 10 months

CodePage Reg Key Error at Boot

by James Tabor

Hi, I'm getting "Couldn't open CodePage registry key. With OK". I copied freeldr.sys and the rest and reinstall everything, including config files from hives. Installs and go. 1st install system, 2nd reboot ok run fine, and 3rd reboot and get the above error at freeldr. Revision: 18820 Node Kind: directory Schedule: normal Last Changed Author: cwittich Last Changed Rev: 18820 Thanks, James

18 years, 10 months

Re: [ros-diffs] [cwittich] 19291: implemented CreateServiceA

by Thomas Weidenmueller

cwittich(a)svn.reactos.com wrote: > implemented CreateServiceA This implementation theoretically is wrong, at least in windows this is also done using RPC (see the .idl file, there should be methods for ansi and unicode). - Thomas

18 years, 10 months

0.3 release plan - Again

by Steven Edwards

Hi All, My how history repeats itself. I would like to call for a feature freeze on Jan 1st with the approval of the Testing Coordinator. Although we have not had that many releases of the 0.2.x line I feel enough has changed to and that we need to bump to 0.3. Lets review some history 0.1.x - winhello 0.2.x - explorer and a few wine dlls 0.3.x - OpenGL games, Firefox, Mirc, OpenOffice, third party drivers, start of PnP, USB, Xbox support, Initial DirectX Support, etc For the record we really did not plan on all of this other stuff for 0.3 and a year ago most of us would have been happy with just Firefox and Mirc working under VMware and Qemu. In fact we were planning on that work for the 0.3 line to be included in 0.4 release. Which is great! I am happy to see that we have gone much further beyond our once limited goals. What I propose now is that everyone that has a open project try to either get it to a Alpha state by Jan 1st or admit that it just wont be ready for 0.3 and accept that. Current major works in progress: DirectX - GreatLord USB - Fireball PnP - hpoussin Ws2 - Ionescu msvcDDK - sedwards Can we get all of these in for 0.3? Ws2 is a showstopper for 0.3, USB at least for the Xbox in my mind is a showstopper as well. PnP would be really, really nice to have but if its not ready I think we should ship anyway and plan on doing a short run to 0.4 before we fully support PnP. DirectX I have no idea how close it is to working and my current pet project for MSVC/DDK and rbuild is not a feature. I would like to be able to build ReactOS with our DDK under msvc in the hopes of getting more developers to join the project and improve the quality of our code but I am happy to admit this is not a priority. So what does everyone think? Can we shot for a feeze for Jan 1st? How does Feb 1st sound for a release? Thanks Steven __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com

18 years, 10 months

[hpoussin] 19288: Second attempt to have a workingkeyboard and mouse at third reboot

by Ge van Geldorp

> From: hpoussin(a)svn.reactos.com > > Second attempt to have a working keyboard and mouse at third > reboot May fix bug 1018 It does. Thanks! GvG

18 years, 10 months

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