NAME
        FindTask -- find a task with the given name or find oneself

   SYNOPSIS
        task = FindTask(name)
        D0              A1

        struct task *findtask(strptr);

   FUNCTION
        This function will check all task queues for a task with the given
        name, and return a pointer to its task control block.  If a NULL
        name pointer is given a pointer to the current task will be
        returned.

        Finding oneself with a NULL for the name is very quick.  Finding a
        task by name is very system expensive, and will disable interrupts
        for a long time.  Since a task may remove itself at any time,
        a forbid()/permit() pair may be needed to ensure the pointer
        returned by FindTask() is still valid when used.

   INPUT
        name - pointer to a name string

   RESULT
        task - pointer to the task (or Process)