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l4_msgtag_t Struct Reference
[Datatypes, Defines and Macros]

Message tag for IPC operations. More...

#include <types.h>


Data Fields

l4_mword_t raw
 raw value


Detailed Description

Message tag for IPC operations.

Describes the details of an IPC operation, in particular the which parts of the UTCB have to be transmitted, and also flags to anbale realtime and FPU extensions.

The message tag also contains a user-defined label that could be used to specify a protocol ID. Some negative values are reseved for kernel protocols such as page faults and exceptions.

The type must be treated completely opaque.

Definition at line 72 of file types.h.


The documentation for this struct was generated from the following file:

Fiasco/L4 System Call C-Bindings Reference Manual,  © 1996-2008