Tagged Questions

1
vote
1answer
34 views

How to trace process scheduling of certain process?

For a project at my university I am researching ways to trace, log and manipulate the process scheduling of certain processes. I would like to launch an number of applications, everyone in a single ...
0
votes
0answers
29 views

dynamic pool of process C [migrated]

I'm writing program in UNIX on C. I have to write client-server(TCP) program on sockets. Client sends some information and server answer. No matter what client sends or receives because I successfully ...
-1
votes
0answers
49 views

Client-Server with unnamed pipes and select [closed]

I try to write simple client-server program using fork(), pipe() and select(). Parent process is a server, which select pipe with data from client by FD_ISSET and write data to other clients. And ...
0
votes
2answers
65 views

Which process updates /proc/scsi/scsi?

I wrote C that displays info about my hardware on ubuntu. Now I wonder how I can make it more flexible such as querying the hardware directly instead of the file the os updates. So I think I can look ...
-3
votes
2answers
65 views

Which Linux distro/mode offers lowest interference when running your own applications?

I'm interested in a Linux distro to build C projects and test their behavior in a very predictable and controlled environment. I'm especially concerned about letting the scheduler deal as much as ...
1
vote
1answer
323 views

How to preload my .so everytime an application executes?

I've successfully used a hook under linux with this article: http://hackerboss.com/overriding-system-functions-for-fun-and-profit/ Now I want to make my .so file load every time espeak loads up. No ...
4
votes
3answers
115 views

Why is there a type for process ids (pid_t), but not for file descriptors (fd)?

I see that pid_t is typedef'd in unistd.h, and file descriptors are defined to be int in fcntl.h. But since they are used in similar ways, wouldn't it make sense to have a typedef for file ...
10
votes
2answers
2k views

After fork(), where does the child begin its execution?

I'm trying to learn UNIX programming and came across a question regarding fork(). I understand that fork() creates an identical process of the currently running process, but where does it start? For ...
1
vote
1answer
238 views

Recording and charting boot process information in Linux

I need to write a command line tool that records the boot process information in Linux, and then renders it in a chart format (a textual chart would do). How do I programmatically obtain the this boot ...