From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,97ef4f98f5ce08be X-Google-Attributes: gid103376,public From: kilgallen@eisner.decus.org (Larry Kilgallen) Subject: Re: How to set stack size of main task? Date: 1996/10/02 Message-ID: <1996Oct2.075609.1@eisner>#1/1 X-Deja-AN: 186672861 x-nntp-posting-host: eisner.decus.org references: <3251CF5F.50B@ro.com> x-nntp-posting-user: KILGALLEN x-trace: 844257375/7649 organization: LJK Software newsgroups: comp.lang.ada Date: 1996-10-02T00:00:00+00:00 List-Id: In article <3251CF5F.50B@ro.com>, Stephen & Tammy House writes: > The main task stack size in Ada83 is determined by the RTS and or the > OS. Under unix, the shell has stack size limits set (see the limit > command). I'm not sure, but I doubt that Ada95 has done anything about > this. Tasks are set up by the RTS, but there is no hook to the main > thread since it is started by the OS's loader. On VMS, the main stack will "expand" when it runs out, although as with any well-behaved operating system there are limits on how much virtual memory can be spent in this endeavor (preventing an individual user from filling the pagefile, for example). I would hope that future Ada implementations running in memory-rich environments (timesharing machines, not rocket ships) would support an option to make other task stacks relatively unlimited as well. 64-bit addressing allows an individual OS process to have task stack sizes of about 4 billion bytes, presuming the number of tasks for a given program is limited to 4 billion as well :-). Actually, my current need is less than 100 tasks, but I certainly would rather get out of the business of specifying task sizes. Larry Kilgallen