class_init(3)						     Library Functions Manual						     class_init(3)

NAME

       class_init - Initialize the class scheduler database

LIBRARY

       Standard C Library (libclass.a)

SYNOPSIS

       #include <sys/class.h>
	class_init(void)

DESCRIPTION

       Prepare the class scheduler database for use by: opening the disk file (if any) creating (or attaching to) a shared memory section creating
       (or attaching to) a semaphore

       Before class scheduling can be used, the database must be initialized.  At the first call of class_init() since the last boot, the function
       creates	a shared memory segment for the database and, if it exists on disk, reads it into the shared memory.  A semaphore  is also created
       that is used to synchronize potential simultaneous database updates (for example, from class_admin(8) or runclass(1)).

       On subsequent calls to class_init(), the function attaches to the existing shared memory and semaphore.

       Note that the calling process must have root access privileges

RETURN VALUES

       Operation successfully completed.  Not super user - permission denied.  Failed to access disk file, if it  exists.   Failed  to	create	or
       attach to shared memory.  Failed to create or attach to semaphore.

SEE ALSO

       Functions:class_add(3),	class_change(3),  class_create(3), class_close(3), class_configure(3), class_get_config_stats(3), class_delete(3),
       class_destroy(3),   class_disable(3),   class_enable(3),   class_save_database(3),    class_restore_database(3),    class_load_database(3),
       class_change_name(3),	 class_database_file_exists(3),    class_database_name(3),    class_database_modified(3),    class_get_classes(3),
       class_get_class_members(3),

       Commands:class_admin(8), runclass(1), class_scheduling(4)

       Other: The System Administration guide.	delim off

																     class_init(3)