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... (1 Reply)
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... (0 Replies)
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: (2 Replies)
(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... (0 Replies)
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: (2 Replies)
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 (0 Replies)
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... (12 Replies)
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... (3 Replies)
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... (8 Replies)
Discussion started by: Praty.27
8 Replies
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)