l4/pkg/moe/server/src/app_task.cc

   1 /*
   2  * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
   3  *               Alexander Warg <warg@os.inf.tu-dresden.de>
   4  *     economic rights: Technische Universität Dresden (Germany)
   5  *
   6  * This file is part of TUD:OS and distributed under the terms of the
   7  * GNU General Public License 2.
   8  * Please see the COPYING-GPL-2 file for details.
   9  */
  10 #include "app_task.h"
  11 #include "slab_alloc.h"
  12 #include "globals.h"
  13 #include <l4/re/parent-sys.h>
  14 #include <l4/re/protocols>
  15
  16
  17 using L4Re::Dataspace;
  18
  19
  20 int
  21 App_task::dispatch(l4_umword_t obj, L4::Ipc::Iostream &ios)
  22 {
  23   l4_msgtag_t tag;
  24   ios >> tag;
  25
  26   if (tag.label() != L4Re::Protocol::Parent)
  27     return -L4_EBADPROTO;
  28
  29   L4::Opcode op;
  30   ios >> op;
  31   switch (op)
  32     {
  33       case L4Re::Parent_::Signal:
  34       {
  35         unsigned long sig;
  36         unsigned long val;
  37         ios >> sig >> val;
  38
  39         switch (sig)
  40           {
  41           case 0: // exit
  42             {
  43               object_pool.cap_alloc()->free(this);
  44               if (val != 0)
  45                 L4::cout << "MOE: task " << obj << " exited with " << val
  46                          << '\n';
  47
  48               GC_gcollect();
  49               GC_gcollect_and_unmap();
  50               return -L4_ENOREPLY;
  51             }
  52           default: break;
  53           }
  54         return L4_EOK;
  55       }
  56     default:
  57       return -L4_ENOSYS;
  58     }
  59 }
  60
  61 App_task::App_task()
  62   : _task(L4::Cap<L4::Task>::Invalid),
  63     _thread(L4::Cap<L4::Thread>::Invalid),
  64     _alloc(Allocator::root_allocator())
  65 {
  66   object_pool.cap_alloc()->alloc(&_rm);
  67   object_pool.cap_alloc()->alloc(&log);
  68 }
  69
  70 App_task::~App_task()
  71 {
  72   object_pool.cap_alloc()->free(&_rm);
  73   object_pool.cap_alloc()->free(&log);
  74   object_pool.cap_alloc()->free(_thread);
  75   object_pool.cap_alloc()->free(_task);
  76   object_pool.cap_alloc()->free(&_sched);
  77 }