We have written a deamon which have many threads.
We are registering for the SIGTERM and trying to close main thread in this signal handling. Actually these are running on Mac OS X ( BSD unix). When we are unloading the deamon with command launchctl, it's sending SIGTERM signal to our process but it's crashing while we are going to close our main thread. It's crashing when oing to access some static data. I like to know, how SIGTERM are sending by the OS and once we finished the signal function and if still there is sosme more threads then what happened. My process should crashed or exited smoothly. Our process is crashing some time.
but it’s crashing while we are going to close our main thread. It’s crashing when oing to access some static data.
This shouldn't happen. Your program is still running when the SIGTERM signal is sent to it, and if you are correctly catching the signal, there shouldn't be any problem. Now, when you say you are going to access some "static data", do you mean data declared globally? such as in
Code:
static some_type some_variable;
Or do you mean something else? Perhaps you are trying to access data declared to be static variables within a thread. Hrm?
Hello,
I extracted a list of files in a directory with the command ls . However this is not my computer, so the ls functionality has been revamped so that it gives the filesizes in front like this :
This is the output of ls command : I stored the output in a file filelist
1.1M... (5 Replies)
Hello everybody,
I have a little problem with one of my program. I made a plugin for collectd (a stats collector for my servers) but I have a problem to make it run in parallel.
My program gathers stats from logs, so it needs to run in background waiting for any new lines added in the log... (0 Replies)
I've read the man page of singal(3) but I still can't quite understand what is the difference between SIGINT, SIGALRM and SIGTERM.
Can someone tell me what is the behavioral difference among these 3 signals in kill command?
Thanks! (2 Replies)
I'm writing a function right now, and I want to set an alarm to avoid a timeout, here's the general idea of my code:
int amt = -2;
alarm(10);
amt = read(fd, &t->buf, TASKBUFSIZ - tailpos); //do a read
when the alarm goes off, i want to check the value of "amt"
... (1 Reply)
I am trying to develop a script that will properly handle kill signals particularly kill -2. I have program (_progres) that properly receives the signal if I run it from the command line directly:
_progres -T /tmp -p /home/mejones/signal.p -b 2>&1 &
If I try to put it in a script (i.e.... (2 Replies)
Hello,
Can any body give example of using Unix Signals. What I want to do is
I am running a sql query in a shell script
I want, if sql query exceed the defined no. of seconds limit, then I would like to kill the process.
I know this can be done thru Unix Signal Handling but I do not know... (8 Replies)
