Contents [hide]
When do processes belong to the same session?
In other words, all the processes in a process group must belong to the same session. setpgid () call places the calling process into its own process group and its own session. This is necessary to ensure that two sessions do not contain processes in the same process group.
How are processes added to a process group?
Processes are added to a process group through setpgid (). pid is the process that is being placed in a new process group (0 may be used to indicate the current process). pgid is the process group ID the process pid should belong to, or 0 if the process should be in a new process group whose pgid is the same as that process’s pid.
How to run multiple processes with the same executable?
I want to run multiple processes (for example 10 processes who get started after each other) after a button is pressed from a Windows form. Each process executes the same executable.
How are process groups and sessions related in Linux?
In order to manage all of these processes, the kernel needs to group the processes in ways more complicated than the simple parent-child relationship we have already discussed. These groupings are called sessions and process groups. Figure 10.1 shows the relationship among sessions, process groups, and processes.
Can a session leader change its process group?
A session leader may not change its process group. A process may not be moved into a process group whose leader is in a different session from itself. In other words, all the processes in a process group must belong to the same session. setpgid () call places the calling process into its own process group and its own session.
Which is the controlling terminal of a session?
The terminal to which a session is related is called the controlling terminal (or controlling tty) of the session. A terminal can be the controlling terminal for only one session at a time.
How to monitor jobs in a session from another session?
Step 1 blocks the script and step 2 does not, of course. I can easily monitor the progress/state of the loop and step 1 through the console. What I’d also like to do is monitor the job status of jobs started by step 2 while the batch is still executing. In general, it is possible to ‘attach’ or query another powershell session from another session?