mirror of
https://github.com/varun-r-mallya/sysprof.git
synced 2025-12-31 20:36:25 +00:00
dbb7833cbf
This brings together the two libraries back into one now that the whole design is pretty well sorted out. They depend on roughly the same libraries anyway and it's way easier of the single library can both read and write the capture files (along with bringing in libsysprof-capture symbols in a single place).
314 lines
10 KiB
C
314 lines
10 KiB
C
/* sysprof-power-profile.c
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*
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* Copyright 2023 Christian Hergert <chergert@redhat.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include "config.h"
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#include <glib/gi18n.h>
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#include "sysprof-power-profile.h"
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#include "sysprof-instrument-private.h"
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#include "sysprof-recording-private.h"
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struct _SysprofPowerProfile
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{
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SysprofInstrument parent_instance;
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SysprofRecording *recording;
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char *restore_id;
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char *id;
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};
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struct _SysprofPowerProfileClass
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{
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SysprofInstrumentClass parent_class;
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};
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G_DEFINE_FINAL_TYPE (SysprofPowerProfile, sysprof_power_profile, SYSPROF_TYPE_INSTRUMENT)
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enum {
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PROP_0,
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PROP_ID,
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N_PROPS
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};
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static GParamSpec *properties[N_PROPS];
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static char **
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sysprof_power_profile_list_required_policy (SysprofInstrument *instrument)
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{
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static const char *required_policy[] = {"net.hadess.PowerProfiles.switch-profile", NULL};
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return g_strdupv ((char **)required_policy);
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}
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static void
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restore_power_profile (char *power_profile)
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{
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g_debug ("Restoring performance profile to %s\n", power_profile);
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if (power_profile != NULL)
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{
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g_autofree char *hold = power_profile;
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g_autoptr(GDBusConnection) bus = NULL;
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g_autoptr(GVariant) ret = NULL;
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g_autoptr(GError) error = NULL;
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if (!(bus = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, NULL)))
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return;
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ret = g_dbus_connection_call_sync (bus,
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"net.hadess.PowerProfiles",
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"/net/hadess/PowerProfiles",
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"org.freedesktop.DBus.Properties",
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"Set",
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g_variant_new ("(ssv)",
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"net.hadess.PowerProfiles",
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"ActiveProfile",
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g_variant_new_string (power_profile)),
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NULL,
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G_DBUS_CALL_FLAGS_NONE,
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-1,
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NULL, &error);
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if (error != NULL)
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g_warning ("Failed to restore performance profile: %s", error->message);
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}
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}
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static DexFuture *
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sysprof_power_profile_release_cb (DexFuture *future,
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gpointer user_data)
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{
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SysprofPowerProfile *self = user_data;
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g_assert (DEX_IS_FUTURE (future));
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g_assert (SYSPROF_IS_POWER_PROFILE (self));
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g_clear_pointer (&self->restore_id, restore_power_profile);
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return dex_future_new_for_boolean (TRUE);
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}
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static DexFuture *
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sysprof_power_profile_record (SysprofInstrument *instrument,
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SysprofRecording *recording,
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GCancellable *cancellable)
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{
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g_assert (SYSPROF_IS_POWER_PROFILE (instrument));
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g_assert (SYSPROF_IS_RECORDING (recording));
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g_assert (G_IS_CANCELLABLE (cancellable));
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return dex_future_finally (dex_cancellable_new_from_cancellable (cancellable),
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sysprof_power_profile_release_cb,
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g_object_ref (instrument),
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g_object_unref);
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}
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static char *
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get_string_prop (GVariant *v)
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{
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g_autoptr(GVariant) child1 = g_variant_get_child_value (v, 0);
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g_autoptr(GVariant) child2 = g_variant_get_child_value (child1, 0);
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return g_variant_dup_string (child2, NULL);
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}
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static DexFuture *
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sysprof_power_profile_prepare_fiber (gpointer user_data)
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{
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SysprofPowerProfile *self = user_data;
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g_autoptr(GDBusConnection) bus = NULL;
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g_autoptr(GVariant) ret = NULL;
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g_autoptr(GError) error = NULL;
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g_assert (SYSPROF_IS_POWER_PROFILE (self));
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g_assert (SYSPROF_IS_RECORDING (self->recording));
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if (self->id == NULL)
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goto failure;
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if (!(bus = dex_await_object (dex_bus_get (G_BUS_TYPE_SYSTEM), &error)))
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goto failure;
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if (!(ret = dex_await_variant (dex_dbus_connection_call (bus,
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"net.hadess.PowerProfiles",
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"/net/hadess/PowerProfiles",
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"org.freedesktop.DBus.Properties",
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"Get",
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g_variant_new ("(ss)",
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"net.hadess.PowerProfiles",
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"ActiveProfile"),
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G_VARIANT_TYPE ("(v)"),
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G_DBUS_CALL_FLAGS_NONE,
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-1), &error)))
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goto failure;
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/* Save the value to be restored after recording */
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g_clear_pointer (&self->restore_id, g_free);
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self->restore_id = get_string_prop (ret);
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g_clear_pointer (&ret, g_variant_unref);
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/* We don't use "HoldPorfile" here because it is not reliable */
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if (g_strcmp0 (self->id, self->restore_id) != 0)
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{
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if (!(ret = dex_await_variant (dex_dbus_connection_call (bus,
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"net.hadess.PowerProfiles",
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"/net/hadess/PowerProfiles",
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"org.freedesktop.DBus.Properties",
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"Set",
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g_variant_new ("(ssv)",
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"net.hadess.PowerProfiles",
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"ActiveProfile",
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g_variant_new_string (self->id)),
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NULL,
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G_DBUS_CALL_FLAGS_NONE,
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-1), &error)))
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goto failure;
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_sysprof_recording_diagnostic (self->recording,
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"Power Profile",
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"Power profile temporarily set to %s from %s",
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self->id, self->restore_id);
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}
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else
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{
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g_clear_pointer (&self->restore_id, g_free);
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}
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failure:
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if (error != NULL)
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_sysprof_recording_diagnostic (self->recording,
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"Power Profile",
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"Failed to set power profile to “%s”: %s",
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self->id, error->message);
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g_clear_object (&self->recording);
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return dex_future_new_for_boolean (TRUE);
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}
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static DexFuture *
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sysprof_power_profile_prepare (SysprofInstrument *instrument,
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SysprofRecording *recording)
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{
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SysprofPowerProfile *self = (SysprofPowerProfile *)instrument;
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g_assert (SYSPROF_IS_POWER_PROFILE (self));
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g_assert (SYSPROF_IS_RECORDING (recording));
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g_set_object (&self->recording, recording);
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return dex_scheduler_spawn (NULL, 0,
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sysprof_power_profile_prepare_fiber,
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g_object_ref (self),
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g_object_unref);
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}
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static void
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sysprof_power_profile_dispose (GObject *object)
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{
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SysprofPowerProfile *self = (SysprofPowerProfile *)object;
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g_clear_pointer (&self->id, g_free);
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g_clear_pointer (&self->restore_id, g_free);
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G_OBJECT_CLASS (sysprof_power_profile_parent_class)->dispose (object);
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}
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static void
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sysprof_power_profile_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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SysprofPowerProfile *self = SYSPROF_POWER_PROFILE (object);
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switch (prop_id)
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{
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case PROP_ID:
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g_value_set_string (value, sysprof_power_profile_get_id (self));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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sysprof_power_profile_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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SysprofPowerProfile *self = SYSPROF_POWER_PROFILE (object);
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switch (prop_id)
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{
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case PROP_ID:
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self->id = g_value_dup_string (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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}
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}
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static void
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sysprof_power_profile_class_init (SysprofPowerProfileClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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SysprofInstrumentClass *instrument_class = SYSPROF_INSTRUMENT_CLASS (klass);
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object_class->dispose = sysprof_power_profile_dispose;
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object_class->get_property = sysprof_power_profile_get_property;
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object_class->set_property = sysprof_power_profile_set_property;
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instrument_class->list_required_policy = sysprof_power_profile_list_required_policy;
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instrument_class->prepare = sysprof_power_profile_prepare;
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instrument_class->record = sysprof_power_profile_record;
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properties[PROP_ID] =
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g_param_spec_string ("id", NULL, NULL,
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NULL,
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(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
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g_object_class_install_properties (object_class, N_PROPS, properties);
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}
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static void
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sysprof_power_profile_init (SysprofPowerProfile *self)
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{
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}
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SysprofInstrument *
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sysprof_power_profile_new (const char *id)
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{
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return g_object_new (SYSPROF_TYPE_POWER_PROFILE,
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"id", id,
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NULL);
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}
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const char *
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sysprof_power_profile_get_id (SysprofPowerProfile *self)
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{
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g_return_val_if_fail (SYSPROF_IS_POWER_PROFILE (self), NULL);
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return self->id;
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}
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