Drobe :: The archives
About Drobe | Contact | RSS | Twitter | Tech docs | Downloads | BBC Micro

Confirm comment report request

Hmm, I'd have thought that PMT would be of much less value (particularly for the task of writing a http server - trying to desparately bring this thread back on topic) unless you also has a re-entrant filecore. I find the fact that RISC OS stops as soon as it does any disc IO operations one of the most glaring difference when moving from other operating systems.

I don't think it's as simple as either having each process with its environment or having semaphores (and more specific locking APIs). There will always be shared resources, so you'll always need semaphores in any case, and separate environments it quite likely to break existing software.

For example, a case I encounter from time to time that's quite applicable to web servers is changing the current directory. When issuing such a command you need to be very aware of whether it's going to happen as a sub-process, or whether it will happen as part of the current process. If the former case, it may spawn a process with it's own environment, change the directory in that environment then immediately delete it as the process closes - so your call had no effect.

 is a RISC OS Userninja on 30/7/04 3:59PM
[ Reply | Permalink | Report ]

Click on the button below to confirm you wish to flag up this comment to the website's administrators. Abuse of this service will be frowned upon and it should only be used to notify us of comments that are extremely distasteful, indecent or otherwise unlawful. If you disagree with an opinion expressed or fact stated in a comment, please take part in the debate rather than expect it to be removed.

Return to the drobe.co.uk front page

Details

Reporting user / IP: / 107.23.129.77
Comment GID: 11869
Timestamp: Sun, 19 May 2019 17:20:19 +0000

Search the archives

Today's featured article

  • NetSurf bags GBP10K investment from Google
    Four uni coders lined up to improve web browser
     35 comments, latest by tlsa on 24/11/08 4:19PM. Published: 21 Apr 2008

  • Random article

  • Official release of home accounting software
    CashBook leaves beta status
     Discuss this. Published: 10 Sep 2007

  • Useful links

    News and media:
    IconbarMyRISCOSArcSiteRISCOScodeANSC.S.A.AnnounceArchiveQercusRiscWorldDrag'n'DropGAG-News

    Top developers:
    RISCOS LtdRISC OS OpenMW SoftwareR-CompAdvantage SixVirtualAcorn

    Dealers:
    CJE MicrosAPDLCastlea4X-AmpleLiquid SiliconWebmonster

    Usergroups:
    WROCCRONENKACCIRUGSASAUGROUGOLRONWUGMUGWAUGGAGRISCOS.be

    Useful:
    RISCOS.org.ukRISCOS.orgRISCOS.infoFilebaseChris Why's Acorn/RISC OS collectionNetSurf

    Non-RISC OS:
    The RegisterThe InquirerApple InsiderBBC NewsSky NewsGoogle Newsxkcddiodesign


    © 1999-2009 The Drobe Team. Some rights reserved, click here for more information
    Powered by MiniDrobeCMS, based on J4U | Statistics
    "Leaking tit bits creates rumours, confusion and often mangles facts"
    Page generated in 0.0386 seconds.