Function Calls

The following kernel function calls control items. See Kernel Folio Calls, in the 3DO System Programmer's Reference for a complete description of these calls.

Creating Items

The following calls create items:

CreateBufferedMsg() Creates a buffered message.
CreateIOReq() Creates an I/O request.
CreateItem() Creates an item.
CreateMsg() Creates a standard message.
CreateMsgPort() Creates a message port.
CreateSemaphore() Creates a semaphore.
CreateSmallMsg) Creates a small message.
CreateThread() Creates a thread.
CreateUniqueMsgPort() Creates a message port with a guaranteed unique name.
CreateUniqueSemaphore() Creates a semaphore with a guaranteed unique name.

Opening Items

The following calls open items:

FindAndOpenDevice() Finds and opens a device item.
FindAndOpenFolio() Finds and opens a folio item.
FindAndOpenItem() Finds and opens an item.
FindAndOpenNamedItem() Finds an item by name and opens it.
OpenItem() Opens a system item.
OpenNamedDevice() Opens the named device.

Managing Items

The following calls manage items:

CheckItem() Checks to see if an item exists.
FindDevice() Finds a device item by name.
FindFolio() Finds a folio item by name.
FindItem() Finds an item by type and tag arguments.
FindMsgPort() Finds a message port item by name.
FindNamedItem()Finds an item by name.
FindSemaphore() Finds a semaphore item by name.
FindTask()Finds a task item by name.
FindVersionedItem()Finds an item by name and version number.
LookupItem()Gets a pointer to an item.
SetItemOwner()Changes the owner of an item.
SetItemPri()Changes the priority of an item.

Closing and Deleting Items

The following calls close and delete items:

CloseItem() Closes a system item.
CloseNamedDevice() Closes a device item.
DeleteIOReq() Deletes an IOReq item.
DeleteItem() Deletes an item.
DeleteMsg()Deletes a message item.
DeleteMsgPort()Deletes a message port item.
DeleteSemaphore() Deletes a semaphore item.
DeleteThread()Deletes a thread.