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Full Discussion: Child threads communicating with main thread via pipes
Top Forums Programming Child threads communicating with main thread via pipes Post 302667479 by Corona688 on Friday 6th of July 2012 10:52:16 AM
Old 07-06-2012
Quote:
Originally Posted by Majortom71
I basically want to inform main that a client disconnected in order to decrement the thread counter.
Why not use a semaphore? They're threadsafe counters which do exactly what you want. See man sem_init and man sem_wait and man sem_post.

Code:
sem_t sem;

void main_thread(void)
{
        sem_init(&sem, 0, 5); // Create sem with value of 5
        while(1)
        {
                sem_wait(&sem); // If sem goes below 5, main will wait until something else adds
                if(!running) break;
                launch_thread(threadfunc);
        }
}

void threadfunc(void)
{
        while(1)
        {
                do_stuff;
                if(!running) break;
        }

        sem_post(&sem); // add 1 to sem
}

 

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LEARN ABOUT DEBIAN

mosh-client

MOSH(1) 						      General Commands Manual							   MOSH(1)

NAME

       mosh-client - client-side helper for mosh

SYNOPSIS

       MOSH_KEY=KEY mosh-client IP PORT
       mosh-client -c

DESCRIPTION

       mosh-client is a helper program for the mosh(1) remote terminal application.

       mosh  itself  is a setup script that establishes an SSH connection, runs the server-side helper mosh-server, and collects the server's port
       number and session key.

       mosh then executes mosh-client with the server's IP address, port, and session key. mosh-client runs for the lifetime of the connection.

       The 22-byte base64 session key given by mosh-server is supplied in the MOSH_KEY environment variable. This represents  a  128-bit  AES  key
       that protects the integrity and confidentiality of the session.

       For constructing new setup wrappers for remote execution facilities other than SSH, it may be necessary to invoke mosh-client directly.

       With the -c option, mosh-client instead prints the number of colors of the terminal given by the TERM environment variable.

SEE ALSO

       mosh(1), mosh-server(1).

       Project home page: http://mosh.mit.edu

AUTHOR

       mosh was written by Keith Winstein <mosh-devel@mit.edu>.

BUGS

       Please report bugs to mosh-devel@mit.edu. Users may also subscribe to the mosh-users@mit.edu mailing list, at
       http://mailman.mit.edu/mailman/listinfo/mosh-users

								   February 2012							   MOSH(1)
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