L4Re Operating System Framework – Interface and Usage Documentation
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ipc_helper
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1// vi:set ft=cpp: -*- Mode: C++ -*-
6/*
7 * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
8 * Alexander Warg <warg@os.inf.tu-dresden.de>
9 * economic rights: Technische Universität Dresden (Germany)
10 *
11 * This file is part of TUD:OS and distributed under the terms of the
12 * GNU General Public License 2.
13 * Please see the COPYING-GPL-2 file for details.
14 *
15 * As a special exception, you may use this file as part of a free software
16 * library without restriction. Specifically, if other files instantiate
17 * templates or use macros or inline functions from this file, or you compile
18 * this file and link it with other files to produce an executable, this
19 * file does not by itself cause the resulting executable to be covered by
20 * the GNU General Public License. This exception does not however
21 * invalidate any other reasons why the executable file might be covered by
22 * the GNU General Public License.
23 */
24#pragma once
25
26#include <l4/cxx/exceptions>
27#include <l4/sys/utcb.h>
28
29namespace L4
30{
31#ifdef __EXCEPTIONS
40 inline void
42 l4_utcb_t *utcb)
43 {
44 (void)o;
45 if (err.has_error())
46 throw (L4::Com_error(l4_error_u(err, utcb)));
47 }
48
57 inline void
58 throw_ipc_exception(void const *o, l4_msgtag_t const &err,
59 l4_utcb_t *utcb)
60 { throw_ipc_exception(L4::Cap<void>(o), err, utcb); }
61#endif
62
63}
C++ interface for capabilities.
Definition capability.h:222
Error conditions during IPC.
Definition exceptions:275
Base exceptions.
struct l4_utcb_t l4_utcb_t
Opaque type for the UTCB.
Definition utcb.h:67
L4 low-level kernel interface.
void throw_ipc_exception(L4::Cap< void > const &o, l4_msgtag_t const &err, l4_utcb_t *utcb)
Throw an L4 IPC error as exception.
Definition ipc_helper:41
Message tag data structure.
Definition types.h:163
unsigned has_error() const L4_NOTHROW
Test if flags indicate an error.
Definition types.h:194