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governor: add daemon API and helpers to set CPU governor

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This commit is contained in:
Christian Hergert
2019-06-14 08:03:37 -07:00
parent c46ac1374b
commit fc745767d4
4 changed files with 199 additions and 0 deletions
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66
src/libsysprof/sysprof-helpers.c
View File

@ -671,3 +671,69 @@ sysprof_helpers_get_process_info_finish (SysprofHelpers *self,
return FALSE;
}
static void
sysprof_helpers_set_governor_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
IpcService *proxy = (IpcService *)object;
g_autoptr(GError) error = NULL;
g_autoptr(GTask) task = user_data;
gchar *old_governor = NULL;
g_assert (IPC_IS_SERVICE (proxy));
g_assert (G_IS_ASYNC_RESULT (result));
g_assert (G_IS_TASK (task));
if (!ipc_service_call_set_governor_finish (proxy, &old_governor, result, &error))
g_task_return_error (task, g_steal_pointer (&error));
else
g_task_return_pointer (task, old_governor, g_free);
}
void
sysprof_helpers_set_governor_async (SysprofHelpers *self,
const gchar *governor,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
g_autoptr(GTask) task = NULL;
g_return_if_fail (SYSPROF_IS_HELPERS (self));
g_return_if_fail (governor != NULL);
task = g_task_new (self, cancellable, callback, user_data);
g_task_set_source_tag (task, sysprof_helpers_set_governor_async);
if (fail_if_no_proxy (self, task))
return;
ipc_service_call_set_governor (self->proxy,
governor,
cancellable,
sysprof_helpers_set_governor_cb,
g_steal_pointer (&task));
}
gboolean
sysprof_helpers_set_governor_finish (SysprofHelpers *self,
GAsyncResult *result,
gchar **old_governer,
GError **error)
{
g_autofree gchar *ret = NULL;
g_return_val_if_fail (SYSPROF_IS_HELPERS (self), FALSE);
g_return_val_if_fail (G_IS_TASK (result), FALSE);
if ((ret = g_task_propagate_pointer (G_TASK (result), error)))
{
if (old_governer != NULL)
*old_governer = g_steal_pointer (&ret);
return TRUE;
}
return FALSE;
}

9
src/libsysprof/sysprof-helpers.h
View File

@ -99,5 +99,14 @@ gboolean sysprof_helpers_perf_event_open (SysprofHelpers
gint *out_fd,
GError **error);
#endif
void sysprof_helpers_set_governor_async (SysprofHelpers *self,
const gchar *governor,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);
gboolean sysprof_helpers_set_governor_finish (SysprofHelpers *self,
GAsyncResult *result,
gchar **old_governor,
GError **error);
G_END_DECLS