02-21-2005
i think that shared mem is the faster of the two. this question really belongs in the c programming category doesn't it?
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I am running HP-UX B.11.11.
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Between mmap and shared memory which is the best method of sharing data between multiple applications, interms of speed? (1 Reply)
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hi,
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I am writing a shared library in Linux (but compatible with other UNIXes) and I want to allow multiple instances to share a piece of memory -- 1 byte is enough. What's the "best" way to do this? I want to optimize for speed and portability.
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6. Programming
Hello,
I wonder if I can write my userdefined data structures(ex: a list) to a shared memory segment?
I know, the shm functions get (void*) parameter so I should be able to read and write a list into the shared memory.
may someone inform and clarify me about that, please? (1 Reply)
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Hey, Im using a shared memory segment to share a WINDOW structure among 2 processes. Basically I'm building a multi-player snake game in which multiple prrocesses access the window.
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I'll try to keep this short, but basically I need to figure out a way to load data in shared memory (this file will be called load.c) I will later access the data with a print.c program.
The "data" is in the form of a student database that looks like this
John Blakeman
111223333
560... (7 Replies)
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Hello.
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QUIZ(6) Games Manual QUIZ(6)
NAME
quiz - test your knowledge
SYNOPSIS
/usr/games/quiz [ -i file ] [ -t ] [ category1 category2 ]
DESCRIPTION
Quiz gives associative knowledge tests on various subjects. It asks items chosen from category1 and expects answers from category2. If no
categories are specified, quiz gives instructions and lists the available categories.
Quiz tells a correct answer whenever you type a bare newline. At the end of input, upon interrupt, or when questions run out, quiz reports
a score and terminates.
The -t flag specifies `tutorial' mode, where missed questions are repeated later, and material is gradually introduced as you learn.
The -i flag causes the named file to be substituted for the default index file. The lines of these files have the syntax:
line = category newline | category `:' line
category = alternate | category `|' alternate
alternate = empty | alternate primary
primary = character | `[' category `]' | option
option = `{' category `}'
The first category on each line of an index file names an information file. The remaining categories specify the order and contents of the
data in each line of the information file. Information files have the same syntax. Backslash `' is used as with sh(1) to quote syntacti-
cally significant characters or to insert transparent newlines into a line. When either a question or its answer is empty, quiz will
refrain from asking it.
FILES
/usr/games/quiz.k/*
BUGS
The construct `a|ab' doesn't work in an information file. Use `a{b}'.
QUIZ(6)