2 * \file l4re/util/libs/cap_alloc.cc
3 * \brief Capability allactor
6 * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
7 * Alexander Warg <warg@os.inf.tu-dresden.de>
8 * economic rights: Technische Universität Dresden (Germany)
10 * This file is part of TUD:OS and distributed under the terms of the
11 * GNU General Public License 2.
12 * Please see the COPYING-GPL-2 file for details.
14 * As a special exception, you may use this file as part of a free software
15 * library without restriction. Specifically, if other files instantiate
16 * templates or use macros or inline functions from this file, or you compile
17 * this file and link it with other files to produce an executable, this
18 * file does not by itself cause the resulting executable to be covered by
19 * the GNU General Public License. This exception does not however
20 * invalidate any other reasons why the executable file might be covered by
21 * the GNU General Public License.
24 #include <l4/crtn/initpriorities.h>
26 #include <l4/re/util/cap_alloc>
28 //#define L4RE_STATIC_CAP_ALLOC
29 #if defined(L4RE_STATIC_CAP_ALLOC)
33 L4Re::Util::Cap_alloc<4096> __attribute__((init_priority(INIT_PRIO_L4RE_UTIL_CAP_ALLOC))) __cap_alloc(L4Re::Env::env()->first_free_cap());
37 #include <l4/re/dataspace>
38 #include <l4/re/mem_alloc>
42 struct Ca : public L4Re::Util::_Cap_alloc
45 typedef L4Re::Util::_Cap_alloc::Counter_storage<Caps> Storage;
47 L4::Cap<L4Re::Dataspace> _ds;
48 Ca() : _ds(L4::Cap<L4Re::Dataspace>::No_init)
50 L4Re::Env const *e = L4Re::Env::env();
51 _ds = L4::Cap<L4Re::Dataspace>(e->first_free_cap() << L4_CAP_SHIFT);
52 e->mem_alloc()->alloc(sizeof(Storage), _ds);
54 e->rm()->attach(&a, sizeof(Storage), L4Re::Rm::Search_addr, _ds);
55 setup(a, Caps, e->first_free_cap() + 1);
59 Ca __attribute__((init_priority(INIT_PRIO_L4RE_UTIL_CAP_ALLOC))) __cap_alloc;
64 namespace L4Re { namespace Util {
66 _Cap_alloc &cap_alloc = __cap_alloc;