Determine whether a process has exited.


In the Julia programming language, the function process_exited(p::Process) is used to determine whether a process has exited or not. It returns a boolean value indicating the exit status of the process.

julia> proc = run(`ls`)
Process(`ls`, ProcessExited(0))

julia> process_exited(proc)

In this example, we create a process using the run function to execute the ls command. The process_exited function is then used to check if the process has exited. Since the exit status is 0, which indicates successful execution, the function returns true.

julia> proc = run(`sleep 5`)
Process(`sleep 5`, ProcessRunning)

julia> process_exited(proc)

In this example, we create a process to execute the sleep 5 command, which pauses execution for 5 seconds. The process_exited function is used to check if the process has exited. Since the process is still running, the function returns false.

Common mistake example:

julia> proc = run(`echo Hello World`)
Process(`echo Hello World`, ProcessExited(0))

julia> process_exited(proc)

In this example, the process_exited function returns false even though the process has actually exited successfully. This is because the output of the echo command is not captured by the run function. To correctly determine if the process has exited, you should consider other factors such as capturing the output or checking for other process signals.

See Also

addprocs, atexit, cd, clipboard, EnvHash, exit, getpid, peakflops, ProcessExitedException, process_exited, process_running, procs, quit, readandwrite, redirect_stdout, rmprocs, run, setenv, spawn, withenv,

User Contributed Notes

Add a Note

The format of note supported is markdown, use triple backtick to start and end a code block.

*Required Field

Checking you are not a robot: