time management module

This commit introduces a time management module.

See doc/time_management.md for details.

executables/nr-softmodem.c

@@ -28,6 +28,7 @@
 #include "PHY/TOOLS/smbv.h"
 unsigned short config_frames[4] = {2,9,11,13};
 #endif
+#include "common/utils/time_manager/time_manager.h"
 #ifdef ENABLE_AERIAL
 #include "nfapi/oai_integration/aerial/fapi_nvIPC.h"
 #endif
@@ -628,6 +629,18 @@ int main( int argc, char **argv ) {
     pthread_mutex_init(&sync_mutex, NULL);
   }
 
+  // start time manager with some reasonable default for the running mode
+  // (may be overwritten in configuration file or command line)
+  time_manager_start(NODE_IS_MONOLITHIC(node_type) ? TIME_MANAGER_GNB_MONOLITHIC
+                     : NODE_IS_CU(node_type)       ? TIME_MANAGER_GNB_CU
+                                                   : TIME_MANAGER_GNB_DU,
+                     // iq_samples time source for monolithic/du with rfsim,
+                     // realtime time source for other cases
+                     IS_SOFTMODEM_RFSIM
+                     && (NODE_IS_MONOLITHIC(node_type) || NODE_IS_DU(node_type))
+                         ? TIME_MANAGER_IQ_SAMPLES
+                         : TIME_MANAGER_REALTIME);
+
   // start the main threads
   number_of_cards = 1;
 
@@ -730,6 +743,8 @@ int main( int argc, char **argv ) {
   pthread_cond_destroy(&nfapi_sync_cond);
   pthread_mutex_destroy(&nfapi_sync_mutex);
 
+  time_manager_finish();
+
   free(pckg);
   logClean();
   printf("Bye.\n");