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Article #13639Re: Thread questions
From: Remy Lebeau (TeamB)
Date: Wed, 01 Oct 2003 18:20
Date: Wed, 01 Oct 2003 18:20
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"Jonathan Starr" <starr@belsoft.com> wrote in message news:3f7b0c4e$1@newsgroups.borland.com... > PS What is happening is that the low-pri thread *appears* to > begin executing at a random point while the high-pri thread > is busy again. That should not be an issue, though. Threads do not have any concept of their timings. A thread shouldn't care about such things. If the real issue is that you have a low-pri thread that is not resuming when you need it to, then you should consider tweaking the thread priorities differently. Alternatively, when the hi-pri thread resumes the lo-pri thread, the hi-pri thread could then call Sleep() to allow the lo-pri thread the oppurtunity to actually start right away (assuming you don't have other threads running). > A thread may acquire a TCriticalSection a lock multiple times > before releasing it. The lock maintains a counter internally. Correct. > I had thought that if a thread acquired such a lock several times > and released it once, it still held it - another thread would block > trying to acquire it until it was released as many times as acquired. Correct. > But I am seeing a case in which a single release seems to > allow another thread to acquire the lock. Please show your actual code. Gambit
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10cc67,daa80f767a159c0c X-Google-Attributes: gid10cc67,public X-Google-ArrivalTime: 2003-10-01 11:39:47 PST From: "Remy Lebeau \(TeamB\)" <gambit47@yahoo.com> Newsgroups: borland.public.cppbuilder.nativeapi References: <3f7b0c4e$1@newsgroups.borland.com> Subject: Re: Thread questions Date: Wed, 1 Oct 2003 11:20:22 -0700 Lines: 37 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 NNTP-Posting-Host: 67.23.78.204 Message-ID: <3f7b1a8d$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1065032333 67.23.78.204 (1 Oct 2003 11:18:53 -0700) Path: arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!sn-xit-02!sn-xit-06!sn-xit-08!supernews.com!38.144.126.70.MISMATCH!feed3.newsreader.com!newsreader.com!newsfeed.news2me.com!npeer.de.kpn-eurorings.net!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail