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 "bus-util.h"
  24 #include "dbus-cgroup.h"
  25 #include "dbus-execute.h"
  26 #include "string-util.h"
  27 #include "swap.h"
  28 #include "unit.h"
  29 #include "dbus-swap.h"
  30
  31 static int property_get_priority(
  32                 sd_bus *bus,
  33                 const char *path,
  34                 const char *interface,
  35                 const char *property,
  36                 sd_bus_message *reply,
  37                 void *userdata,
  38                 sd_bus_error *error) {
  39
  40         Swap *s = SWAP(userdata);
  41         int p;
  42
  43         assert(bus);
  44         assert(reply);
  45         assert(s);
  46
  47         if (s->from_proc_swaps)
  48                 p = s->parameters_proc_swaps.priority;
  49         else if (s->from_fragment)
  50                 p = s->parameters_fragment.priority;
  51         else
  52                 p = -1;
  53
  54         return sd_bus_message_append(reply, "i", p);
  55 }
  56
  57 static int property_get_options(
  58                 sd_bus *bus,
  59                 const char *path,
  60                 const char *interface,
  61                 const char *property,
  62                 sd_bus_message *reply,
  63                 void *userdata,
  64                 sd_bus_error *error) {
  65
  66         Swap *s = SWAP(userdata);
  67         const char *options = NULL;
  68
  69         assert(bus);
  70         assert(reply);
  71         assert(s);
  72
  73         if (s->from_fragment)
  74                 options = s->parameters_fragment.options;
  75
  76         return sd_bus_message_append(reply, "s", options);
  77 }
  78
  79 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, swap_result, SwapResult);
  80
  81 const sd_bus_vtable bus_swap_vtable[] = {
  82         SD_BUS_VTABLE_START(0),
  83         SD_BUS_PROPERTY("What", "s", NULL, offsetof(Swap, what), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  84         SD_BUS_PROPERTY("Priority", "i", property_get_priority, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  85         SD_BUS_PROPERTY("Options", "s", property_get_options, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  86         SD_BUS_PROPERTY("TimeoutUSec", "t", bus_property_get_usec, offsetof(Swap, timeout_usec), SD_BUS_VTABLE_PROPERTY_CONST),
  87         SD_BUS_PROPERTY("ControlPID", "u", bus_property_get_pid, offsetof(Swap, control_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  88         SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Swap, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
  89         BUS_EXEC_COMMAND_VTABLE("ExecActivate", offsetof(Swap, exec_command[SWAP_EXEC_ACTIVATE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
  90         BUS_EXEC_COMMAND_VTABLE("ExecDeactivate", offsetof(Swap, exec_command[SWAP_EXEC_DEACTIVATE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
  91         SD_BUS_VTABLE_END
  92 };
  93
  94 int bus_swap_set_property(
  95                 Unit *u,
  96                 const char *name,
  97                 sd_bus_message *message,
  98                 UnitSetPropertiesMode mode,
  99                 sd_bus_error *error) {
 100
 101         Swap *s = SWAP(u);
 102
 103         assert(s);
 104         assert(name);
 105         assert(message);
 106
 107         return bus_cgroup_set_property(u, &s->cgroup_context, name, message, mode, error);
 108 }
 109
 110 int bus_swap_commit_properties(Unit *u) {
 111         assert(u);
 112
 113         unit_update_cgroup_members_masks(u);
 114         unit_realize_cgroup(u);
 115
 116         return 0;
 117 }