threads and signals Post: 302270032

10 More Discussions You Might Find Interesting

1. Programming

Signals In HP-UX

does the way of handling, interrupting signals in HP-UX same as that of solaris. If there is difference than what it is.?:confused:

2. Programming

Hi In my process there are few threads. Now, lets say all the threads are blocked for some reason or other.. now i read it somewhere that the kernel in this situation sends in some signal which can be caught. please let me know what signal is it and more details about that.. Thanks in...

3. HP-UX

Threads and Signals

I want to handle signals in a process that involves lots of threads. Now I do know that there should be a dedicated thread that will actually be traping signals and then these signals will be ditributed to actual threads. My question is...in case a signals has been generated by a kernel for the...

4. UNIX for Advanced & Expert Users

Threads and Threads Count ?

Hi all, How can I get the list of all Threads and the Total count of threads under a particular process ? Do suggest !! Awaiting for the replies !! Thanks Varun:b:

5. UNIX for Dummies Questions & Answers

Signals...

(posted this in the scripting forum as well, but figured it should go here) So, what's going on is this: For our program, we had to create our own shell, and if the user pressed ctrl-c just at the cmdline, then this signal would be ignored, but if there is a foreground process running, let's...

6. Programming

Using Signals

How can use signals in a C program If i want a child program to signal it's parent program that it(child) program has completed the task that it was assigned.:confused:

7. UNIX for Dummies Questions & Answers

threads and signals

can any one give me an example of a concurrency program in threads and signals, i.e how to deliver messages between threads using signals. thanks

8. Programming

Signals and semaphores

I have problem with my application. Application is running on embedded Linux machine. It's basically multiprotocol gateway that connects two industrial Ethernet networks. We are experiencing some kind of application hang every 2 to 3 days. It seems like both threads are still running but...

9. UNIX for Dummies Questions & Answers

Help understanding signals

I am having trouble with folowing sigset_t s; // now s represents set of signals sigemptyset(&s) ; // initialize this set and exclude all the signals from it.is it empty? sigaddset(&s,SIGILL);//this set containts only SIGILL signal sigprocmask(SIG_BLOCK,&s,NULL);//lost on this one Can...

10. UNIX for Advanced & Expert Users

Help with Signals

Hi All, The problem statement is as below: Problem: A process (exe) is getting executed in background. The output of this process is getting logged in a file. After successfully running for some time the process gets terminated. In the log file following is present: ^M[7m Interrupt ^M[27m...

LEARN ABOUT HPUX

sigpending

sigpending(2)							System Calls Manual						     sigpending(2)

NAME

       sigpending - examine pending signals

SYNOPSIS

DESCRIPTION

       stores the set of signals that are blocked from delivery and are pending to the calling thread, at the location pointed to by set.

RETURN VALUE

       Upon successful completion, returns 0. Otherwise -1 is returned and is set to indicate the error.

ERRORS

       fails if the following condition is encountered:

       set	      points to an invalid address.  The reliable detection of this error is implementation-dependent.

APPLICATION USAGE

   Threads Considerations
       The  set  of  signals  returned	by  is the union of the signals pending on the process and calling thread.  A signal may be pending on the
       process if all threads block the signal.

       The set of signals returned by is only advisory.  Since other threads may be executing at the time of the call, a  signal  pending  on  the
       process may be delivered to a thread after this system call returns.

       For more information regarding signals and threads, refer to signal(5).

   LWP (Lightweight Processes) Considerations
       The set of signals returned by is the union of the signals pending on the process and calling LWP.

AUTHOR

       was derived from the IEEE POSIX 1003.1-1988 Standard.

SEE ALSO

       sigaction(2), sigsuspend(2), sigprocmask(2), sigsetops(3C), signal(5).

CHANGE HISTORY

       First release in Issue 3.

STANDARDS CONFORMANCE

       : AES, SVID3, XPG3, XPG4, FIPS 151-2, POSIX.1

																     sigpending(2)

10 More Discussions You Might Find Interesting

1. Programming

Signals In HP-UX

Discussion started by: kapilv

2. Programming

Threads Signals

Discussion started by: uday_kumar_spl