add log for android to be able to see what is happening while syncing on "realtime"

src/pEpEngine.c

@@ -768,6 +768,12 @@ DYNAMIC_API PEP_STATUS log_event(
     assert(title);
     assert(entity);
 
+    #ifndef NDEBUG
+    #ifdef ANDROID
+    LOGD(" %s :: %s :: %s ", title, entity, description);
+    #endif
+    #endif
+
     if (!(session && title && entity))
         return PEP_ILLEGAL_VALUE;
 

src/pEp_internal.h

@@ -166,9 +166,16 @@ void release_transport_system(PEP_SESSION session, bool out_last);
 
 #ifdef NDEBUG
 #define DEBUG_LOG(TITLE, ENTITY, DESC)
+#define  LOGD(...)
 #else
 #define DEBUG_LOG(TITLE, ENTITY, DESC) \
     log_event(session, (TITLE), (ENTITY), (DESC), "debug");
+#ifdef ANDROID
+#include <android/log.h>
+#define  LOG_TAG    "pEpEngine"
+#define  LOGD(...)  __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__)
+#endif
+
 #endif
 
 // Space tolerant and case insensitive fingerprint string compare