exists()

Definition

INT Exists ( <INT processID|processTypeID> )

Checks if a process is alive, using its processID or checks if there is a process alive of a certain processType, using its processTypeID.

Parameters

• INT processID|processTypeID - The ProcessID of the process or the ProcessTypeID of the type of processes to be checked.

Returns

INT : The result of the check

• 0 (false) - The process with given processID is not alive or there are no processes alive of the given processTypeID.
• 1 (true) - The process with given processID is alive or there is at least one process alive of the given processTypeID.

Example

import "mod_proc"
import "mod_say"

Process Main()
Begin

    Proc();

    if(exists(id))
        say("I exist! (id)");
    end

    if(exists(0))
        say("0 exists!");
    else
        say("0 doesn't exist!");
    end

    if(exists(type proc))
        say("1- Proc exists!");
    else
        say("1- Proc doesn't exist!");
    end

    let_me_alone();

    if(exists(type proc))
        say("2- Proc exists!");
    else
        say("2- Proc doesn't exist!");
    end

End

Process Proc()
Begin
    Loop
        frame;
    End
End

Used in example: exists(), say(), let_me_alone().