src/core/dbus-swap.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2010 Lennart Poettering
   7   Copyright 2010 Maarten Lankhorst
   8
   9   systemd is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU Lesser General Public License as published by
  11   the Free Software Foundation; either version 2.1 of the License, or
  12   (at your option) any later version.
  13
  14   systemd is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   Lesser General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21 ***/
  22
  23 #include "unit.h"
  24 #include "swap.h"
  25 #include "dbus-execute.h"
  26 #include "dbus-cgroup.h"
  27 #include "dbus-swap.h"
  28 #include "bus-util.h"
  29
  30 static int property_get_priority(
  31                 sd_bus *bus,
  32                 const char *path,
  33                 const char *interface,
  34                 const char *property,
  35                 sd_bus_message *reply,
  36                 void *userdata,
  37                 sd_bus_error *error) {
  38
  39         Swap *s = SWAP(userdata);
  40         int p;
  41
  42         assert(bus);
  43         assert(reply);
  44         assert(s);
  45
  46         if (s->from_proc_swaps)
  47                 p = s->parameters_proc_swaps.priority;
  48         else if (s->from_fragment)
  49                 p = s->parameters_fragment.priority;
  50         else
  51                 p = -1;
  52
  53         return sd_bus_message_append(reply, "i", p);
  54 }
  55
  56 static int property_get_options(
  57                 sd_bus *bus,
  58                 const char *path,
  59                 const char *interface,
  60                 const char *property,
  61                 sd_bus_message *reply,
  62                 void *userdata,
  63                 sd_bus_error *error) {
  64
  65         Swap *s = SWAP(userdata);
  66         const char *options = NULL;
  67
  68         assert(bus);
  69         assert(reply);
  70         assert(s);
  71
  72         if (s->from_fragment)
  73                 options = s->parameters_fragment.options;
  74
  75         return sd_bus_message_append(reply, "s", options);
  76 }
  77
  78 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, swap_result, SwapResult);
  79
  80 const sd_bus_vtable bus_swap_vtable[] = {
  81         SD_BUS_VTABLE_START(0),
  82         SD_BUS_PROPERTY("What", "s", NULL, offsetof(Swap, what), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  83         SD_BUS_PROPERTY("Priority", "i", property_get_priority, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  84         SD_BUS_PROPERTY("Options", "s", property_get_options, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  85         SD_BUS_PROPERTY("TimeoutUSec", "t", bus_property_get_usec, offsetof(Swap, timeout_usec), SD_BUS_VTABLE_PROPERTY_CONST),
  86         SD_BUS_PROPERTY("ControlPID", "u", bus_property_get_pid, offsetof(Swap, control_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  87         SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Swap, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  88         BUS_EXEC_COMMAND_VTABLE("ExecActivate", offsetof(Swap, exec_command[SWAP_EXEC_ACTIVATE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
  89         BUS_EXEC_COMMAND_VTABLE("ExecDeactivate", offsetof(Swap, exec_command[SWAP_EXEC_DEACTIVATE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
  90         SD_BUS_VTABLE_END
  91 };
  92
  93 int bus_swap_set_property(
  94                 Unit *u,
  95                 const char *name,
  96                 sd_bus_message *message,
  97                 UnitSetPropertiesMode mode,
  98                 sd_bus_error *error) {
  99
 100         Swap *s = SWAP(u);
 101
 102         assert(s);
 103         assert(name);
 104         assert(message);
 105
 106         return bus_cgroup_set_property(u, &s->cgroup_context, name, message, mode, error);
 107 }
 108
 109 int bus_swap_commit_properties(Unit *u) {
 110         assert(u);
 111
 112         unit_update_cgroup_members_masks(u);
 113         unit_realize_cgroup(u);
 114
 115         return 0;
 116 }