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Top Forums UNIX for Dummies Questions & Answers From iOS programming to Linux system programming Post 302797389 by verdepollo on Monday 22nd of April 2013 01:23:29 PM
Old 04-22-2013
1) I'd say barely. It is useful since underlying platform is a lot similar to Unix and it gives you better understanding of how things work under the hood but -as an iOS programmer- you do not have direct access nor control of the OS, and all tasks *MUST* be performed with Cocoa/CocoaTouch framework tools.
Don't expect to be using SSH, grep, netstat, nfs, df, bash buit-ins, etc in any of your programs.

2) Again, you won't be dealing with syscalls, forking, IRQs, etc. It's not necessary at all; however it's a good plus. Even if you're into multi-threaded programming, Cocoa handles everything without (much) hassle.

3) I'm not a Linux programmer myself but if you are already proficient with Objective-C you're most certainly a capable C programmer so you'd at least be able to "talk" in same language. Now you'd only need to learn the internals of Linux and get familiar with its code.

Last edited by verdepollo; 04-22-2013 at 02:37 PM.. Reason: typo
 

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WORKER(3)								 1								 WORKER(3)

The Worker class

INTRODUCTION
Worker Threads have a persistent context, as such should be used over Threads in most cases. When a Worker is started, the run method will be executed, but the Thread will not leave until one of the following conditions are met: othe Worker goes out of scope (no more references remain) othe programmer calls shutdown othe script dies This means the programmer can reuse the context throughout execution; placing objects on the stack of the Worker will cause the Worker to execute the stacked objects run method. Warning The programmer must retain references to stacked objects until they are executed or unstacked; the Pool class provides a higher level abstraction of the Worker functionality and manages references for the programmer. CLASS SYNOPSIS
Worker Workerextends ThreadTraversableCountableArrayAccess Methods o public integer Worker::getStacked (void ) o public boolean Worker::isShutdown (void ) o public boolean Worker::isWorking (void ) o public boolean Worker::shutdown (void ) o public integer Worker::stack (Threaded &$work) o public integer Worker::unstack ([Threaded &$work]) Inherited methods o public void Thread::detach (void ) o public integer Thread::getCreatorId (void ) o publicstatic Thread Thread::getCurrentThread (void ) o publicstatic integer Thread::getCurrentThreadId (void ) o public integer Thread::getThreadId (void ) o publicstatic mixed Thread::globally (void ) o public boolean Thread::isJoined (void ) o public boolean Thread::isStarted (void ) o public boolean Thread::join (void ) o public void Thread::kill (void ) o public boolean Thread::start ([integer $options]) PHP Documentation Group WORKER(3)
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