SPM (Simple Process Manager) is a Simple Process Manager written in C.
- Can manage and restart any processes managed by the manager.
- Can stop/restart all processes.
- Can restart a process upon it dying.
- C99/C11 Compiler
- Python 3+ (Only for testing)
Well, it doesn't really do much input/output stuff, aside from starting/stopping/restarting processes. Additionally everything is compiled in, so if you just need a handful of things you can do it.
Open up user_procs.c in user_processes/ and put a Create_Process() call above the user_setup function (see the documentation provided there), and then put a corresponding Process() call in the user_setup() function with the right ID. Also the ID can be anything that is valid for a variable name in C (so it can be anything alphanumeric). Do not put quotes around the ID. An example is below:
...
Create_Process(sshd, "sshd -- > sshd.log 2>&1", "kill $(pgrep sshd)", "kill $(pregp sshd) && sshd -- > sshd.log 2>&1")
Create_Process(nginx, "nginx start", "nginx stop", NULL)
Create_Process(apache2, "apache start", NULL, NULL)
...
void user_setup(void){
Process(sshd);
Process(nginx);
Process(apache);
}Individual processes can not be restarted/stopped/restarted by the manager. you can stop all of them (run the compiled binary with an argument of stop or restart. Currently Restarting only works after running stop, and just runs the start command again. stop immediatley stops all processes and deletes them from memory until restart is ran.
Run the compiled binary with shutdown as an argument and the manager will shutdown.
The restart command is currently only used when the process dies and needs to be restarted. If you exclude it, the process will only run once.