I was wandering if there's a way in witch the OS doesn't need to cycle ad infinitum waiting for the input from keyboard (or other input device) and if there are any OS using that. I can't believe that we do need to waste cycling just to wait for input, why can't the input do something once is pressed instead of having the machine to wait...
I have a compiler book, Compilers, and an operating systems book, Operating System Concepts. I have read some of both and, eventually, I plan on completing both. However, for right now, I would like to pick one of them to focus on. I want to read something that will help me develop some good practical skills, via exercises, small project...
Hi, I noticed that when a process starts for the first time, it statically reads some system parameter info only once and keeps it until terminated which means, that if there is some modification to the system parameters already read by the process, they wouldn'y reflect until the process is restarted. e.g. Launch Notepad and type ';...
I am writing a CSV exporter in Java that should respect the user's custom settings, especially the "List separator" to use as a delimiter. In Windows, one can set this List separator in Control Panel -> Regional and Language Options -> Regional Options -> Customize I don't know about the other operating systems, but I'm pretty sure t...
I'm interested in knowing how can my Java program listen to the Print event generated by the underlying OS. As my project is based on Java, the Print job event listener should not be platform depended. To be more specific my program will be running on the background and should be notified of the print job if a user is trying to print pag...
Hello guys, Here is a question not directly related to programming. Being fed up with Microsoft Windows XP Professional, and the lots of eye-candy, I want to try Microsoft Windows Server 2003 as the main OS on my development PC. (The other reason is a better version of IIS than 5.1). And knowing that Win2K3 was originally designed as...
I'm looking for a good book on Linux system programming and wondered whether anybody could recommend an up-to-date appropriate book that covers the subject well. Things like: I/O and fileystems Thread and processes etc... Can anybody suggest an appropriate book that they've read/used, not just something that they've seen on Amazon ...
How can I find out how big a Linux process's page table is, along with any other variable-size process accounting? ...
Hello Everyone, I'm writing a bootstrap and kernel for myself and both bootstrap and kernel will be burn on a CD-R and will function as a CD-live. It is not a linux CD-Live or something else,is totally my own bootloader and kernel. I do not want to use other booloaders (i.e. GRUB) so please don't suggest me to use them. Here is my ques...
RESOLVED After much confusion and frustration, I finally got my hard disk to interrupt. :D It basically came down to the fact that I kept reading the status register instead of the alternate status register. A few other things were messed up to boot, but the point is my hard disk driver is finally starting to take shape. Now, for others...
I like operating systems and would eventually like to become a OS developer mostly working on kernels. In the future will C still be the language of choice and what else should I be trying to learn? ...
Duplicate: What REALLY happens when you don’t free after malloc? Let's say, for example: int main() { char* test = new char[50000]; return 0; } What happens to the allocated memory after the program had finished? Does it get freed for other applications immediately? Or perhaps after some time? Or maybe it's lost to the system...
One thing that I can't get my head around is the persistent questioning here, and elsewhere on the web, about disabling OS-based 'features'. People are forever asking how to disable default OS shortcuts (like copy-paste, the Windows key, etc.), or disabling features programmatically. Surely this is very, very bad practice? To modify a...
For recreational reasons I wrote a PHP class that classifies files with tags instead of in a hierarchical way, the tags are stored in the filename itself in the form of +tag1+tag2+tagN+MD5.EXTENSION and thus I'm stucked with the chars limit (255) imposed by the FS/OS. Here is the class: <?php class TagFS { public $FS = null; f...
I'd like to emulate violent system shutdown, i.e. to get as close as possible to power outage on an application level. We are talking about c/c++ application on Linux. I need the application to terminate itself. Currently i see several options: call exit() call _exit() call abort() do division by zero or dereference NULL. other option...
I am looking to get into operating system kernel development and figured my contribution would be to extend the SANOS operating system in order to support multiple core machines. I have been reading books on operating systems (Tannenbaum) as well as studying how BSD and Linux have tackled this challenge but still am stuck on several conc...
I am looking to get into operating system kernel development and figured my contribution would be to extend the SANOS operating system in order to support JDK 1.6 and 1.7. I have been reading books on operating systems (Tannenbaum) as well as studying how BSD and Linux have tackled this challenge but still am stuck on several concepts. ...
I am looking to get into operating system kernel development and figured and have been reading books on operating systems (Tannenbaum) as well as studying how BSD and Linux have tackled this challenge but still am stuck on several concepts. If I wanted to mimic the Windows Blue Screen of Death on an operating system, would I simply put...
In my systems programming class we are working on a small, simple hobby OS. Personally I have been working on an ATA hard disk driver. I have discovered that a single line of code seems to cause a fault which then immediately reboots the system. The code in question is at the end of my interrupt service routine for the IDE interrupts. Si...
I need to find out all the file system and registry operations that intstaller of some application performs. Is there a software tool for this? OS is windows xp, if that matters. ...