Implement the APIs for gRPC calls in client/server

Implement the APIs defined in the RdcStandaloneHandler to make gRPC call to daemon

Implement the APIs defined in the RdcAPIServiceImpl to handle the gRPC calls in daemon

Add two APIs to get all GPU groups and field groups: rdc_group_get_all_ids()
and rdc_group_field_all_ids()
Those two APIs are required by the rdci group and fieldgroup
sub-modules.

Change-Id: I066091423146dea180c16af212688ed43dc44611

include/rdc_lib/impl/RdcWatchTableImpl.h

@@ -54,14 +54,14 @@ class RdcWatchTableImpl : public RdcWatchTable {
                     uint64_t update_freq, double  max_keep_age,
                     uint32_t  max_keep_samples)  override;
 
-    rdc_status_t rdc_watch_fields(rdc_gpu_group_t group_id,
+    rdc_status_t rdc_field_watch(rdc_gpu_group_t group_id,
         rdc_field_grp_t field_group_id, uint64_t update_freq,
         double  max_keep_age, uint32_t max_keep_samples) override;
 
-    //!< rdc_unwatch_fields() will not remove the entry from watch_table.
+    //!< rdc_field_unwatch() will not remove the entry from watch_table.
     //!< The unwatched entry is still kept until the max_keep_age of the entry
     //!< is reached, which will be handled in the clean_up() function.
-    rdc_status_t rdc_unwatch_fields(rdc_gpu_group_t group_id,
+    rdc_status_t rdc_field_unwatch(rdc_gpu_group_t group_id,
                 rdc_field_grp_t field_group_id) override;
 
     //!< When the RDC is running as RDC_OPERATION_MODE_MANUAL, the user will
@@ -71,7 +71,7 @@ class RdcWatchTableImpl : public RdcWatchTable {
     //!< This function may be called very frequently, and the cache cleanup
     //!< is expensive. Internally, this function will throttle the cleanup to
     //!< once per second.
-    rdc_status_t rdc_update_all_fields() override;
+    rdc_status_t rdc_field_update_all() override;
 
     RdcWatchTableImpl(const RdcGroupSettingsPtr& group_settings,
         const RdcCacheManagerPtr& cache_mgr,
@@ -97,7 +97,7 @@ class RdcWatchTableImpl : public RdcWatchTable {
     std::map<RdcFieldKey, FieldSettings> watch_table_;
 
     //!< The settings for each field can be deduced from watch_table. But every
-    //!< rdc_update_all_fields() call needs to deduce them. To improve the
+    //!< rdc_field_update_all() call needs to deduce them. To improve the
     //!< performance, the fields_to_watch_ is used to track the field settings.
     //!< Those settings will only be updated when watching or unwatching.
     std::map<RdcFieldKey, FieldSettings> fields_to_watch_;