Add uid field annotation in atoms.proto and statd memory usage optimization.

[memory]
  statsd binary size from 664k -> 600k
  memory usage 1978k -> 1813k (with no configs)
  + Avoid initialize any static map in statslog.h to avoid many copies of the map in each include.
    - Do it in cpp so that it is initialized only in places that use them

[Uid annotation]
+ Uid annotation is needed for extracting uid from dimension for UidCpuPuller.
+ After the change, stand-alone uids don't need to be in field 1 anymore.
+ Also added exclusive bit annotation in AppDied
+ Currently only allow one uid field in an Atom. This is to keep things simple until
  we find an exception.

Test: statsd_test
Bug: 73958484
Bug: 72129300

Change-Id: I8a916d5c00d5930e24ae7e0825a57dea19c0e744

1 files changed, 14 insertions, 1 deletions

diff --git a/tools/stats_log_api_gen/Collation.cpp b/tools/stats_log_api_gen/Collation.cpp
index ab106d708748..ebdcdfdd6c50 100644
--- a/tools/stats_log_api_gen/Collation.cpp
+++ b/tools/stats_log_api_gen/Collation.cpp
@@ -46,7 +46,8 @@ AtomDecl::AtomDecl(const AtomDecl& that)
       message(that.message),
       fields(that.fields),
       primaryFields(that.primaryFields),
-      exclusiveField(that.exclusiveField) {}
+      exclusiveField(that.exclusiveField),
+      uidField(that.uidField) {}
 
 AtomDecl::AtomDecl(int c, const string& n, const string& m)
     :code(c),
@@ -262,6 +263,18 @@ int collate_atom(const Descriptor *atom, AtomDecl *atomDecl,
             errorCount++;
         }
     }
+
+    if (field->options().GetExtension(os::statsd::is_uid) == true) {
+        if (javaType != JAVA_TYPE_INT) {
+            errorCount++;
+        }
+
+        if (atomDecl->uidField == 0) {
+            atomDecl->uidField = it->first;
+        } else {
+            errorCount++;
+        }
+    }
   }
 
   return errorCount;