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ratbagd: add DBus methods to retrieve object paths

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Add two new helpers to query ratbagd for the object-paths of a specific
object:
  GetDeviceByName: Return device given a device name
  GetProfileByIndex: Return a profile given a profile index

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
This commit is contained in:
David Herrmann
2015-09-29 18:53:54 +02:00
parent eeb8788413
commit 1a677c0b1d
2 changed files with 44 additions and 0 deletions
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22
src/ratbagd-device.c
View File

@@ -221,6 +221,27 @@ static int ratbagd_device_get_default_profile(sd_bus *bus,
return sd_bus_message_append(reply, "o", "/");
}
static int ratbagd_device_get_profile_by_index(sd_bus_message *m,
void *userdata,
sd_bus_error *error)
{
struct ratbagd_device *device = userdata;
struct ratbagd_profile *profile;
unsigned int index;
int r;
r = sd_bus_message_read(m, "u", &index);
if (r < 0)
return r;
if (index >= device->n_profiles || !device->profiles[index])
return -ENXIO;
profile = device->profiles[index];
return sd_bus_reply_method_return(m, "o",
ratbagd_profile_get_path(profile));
}
const sd_bus_vtable ratbagd_device_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("Id", "s", NULL, offsetof(struct ratbagd_device, name), SD_BUS_VTABLE_PROPERTY_CONST),
@@ -228,6 +249,7 @@ const sd_bus_vtable ratbagd_device_vtable[] = {
SD_BUS_PROPERTY("Profiles", "ao", ratbagd_device_get_profiles, 0, SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("ActiveProfile", "o", ratbagd_device_get_active_profile, 0, 0),
SD_BUS_PROPERTY("DefaultProfile", "o", ratbagd_device_get_default_profile, 0, 0),
SD_BUS_METHOD("GetProfileByIndex", "u", "o", ratbagd_device_get_profile_by_index, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_VTABLE_END,
};

22
src/ratbagd.c
View File

@@ -121,11 +121,33 @@ static int ratbagd_get_devices(sd_bus *bus,
return sd_bus_message_close_container(reply);
}
static int ratbagd_get_device_by_name(sd_bus_message *m,
void *userdata,
sd_bus_error *error)
{
struct ratbagd *ctx = userdata;
struct ratbagd_device *device;
const char *name;
int r;
r = sd_bus_message_read(m, "s", &name);
if (r < 0)
return r;
device = ratbagd_device_lookup(ctx, name);
if (!device)
return -ENXIO;
return sd_bus_reply_method_return(m, "o",
ratbagd_device_get_path(device));
}
static const sd_bus_vtable ratbagd_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("Devices", "ao", ratbagd_get_devices, 0, 0),
SD_BUS_SIGNAL("DeviceNew", "o", 0),
SD_BUS_SIGNAL("DeviceRemoved", "o", 0),
SD_BUS_METHOD("GetDeviceByName", "s", "o", ratbagd_get_device_by_name, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_VTABLE_END,
};