From: blackje%sungod.tcpip@GE-CRD.ARPA
Subject: RE: Re: Help me to solve this problem!
Date: Mon, 31-Aug-87 20:46:00 EDT [thread overview]
Date: Mon Aug 31 20:46:00 1987
Message-ID: <8709010000.AA05503@ucbvax.Berkeley.EDU> (raw)
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Date: Mon, 31 Aug 87 19:45:10 EDT
From: emmett black <blackje@sungod>
Posted-Date: Mon, 31 Aug 87 19:45:10 EDT
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To: info-ada@ada20.isi.edu
Subject: RE: Re: Help me to solve this problem!
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From STRICKLER%SCOVCB.decnet@csbvax.steinmetz Mon Aug 31 13:31:03 1987
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Date: 31 Aug 87 13:28 EST
From: STRICKLER%SCOVCB.decnet@csbvax.steinmetz
Subject: RE: Re: Help me to solve this problem!
I have not had the time to review the problem in detail, however,
I will throw out a comment which may shed some light on the problem.
Input/output operations on VAX Ada files take place sequentially
(see Programmer's Runtime Reference Manual section 2.7). Thus, if
two tasks request I/O to the same file, the second task will wait
until all previous I/O on that file is completed.
Although I do not know for sure, VAX Ada probably treats the terminal
as a "file" and, if it does, a write can not take place while a read
is pending.
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