SERVER-13638: add hidden interface for NamespaceDetails in RecordStoreV1

10 files changed, 194 insertions, 18 deletions

diff --git a/src/mongo/db/structure/catalog/namespace_details.cpp b/src/mongo/db/structure/catalog/namespace_details.cpp
index 0ad772b0cef..f281d266d70 100644
--- a/src/mongo/db/structure/catalog/namespace_details.cpp
+++ b/src/mongo/db/structure/catalog/namespace_details.cpp
@@ -68,6 +68,8 @@ namespace mongo {
      };
 
     NamespaceDetails::NamespaceDetails( const DiskLoc &loc, bool capped ) {
+        BOOST_STATIC_ASSERT( sizeof(NamespaceDetails::Extra) <= sizeof(NamespaceDetails) );
+
         /* be sure to initialize new fields here -- doesn't default to zeroes the way we use it */
         _firstExtent = _lastExtent = _capExtent = loc;
         _stats.datasize = _stats.nrecords = 0;
diff --git a/src/mongo/db/structure/catalog/namespace_details.h b/src/mongo/db/structure/catalog/namespace_details.h
index 68e563f8f47..80bacc669d9 100644
--- a/src/mongo/db/structure/catalog/namespace_details.h
+++ b/src/mongo/db/structure/catalog/namespace_details.h
@@ -155,7 +155,7 @@ namespace mongo {
         const DiskLoc& capExtent() const { return _capExtent; }
         void setCapExtent( const DiskLoc& loc );
 
-        const DiskLoc capFirstNewRecord() const { return _capFirstNewRecord; }
+        const DiskLoc& capFirstNewRecord() const { return _capFirstNewRecord; }
         void setCapFirstNewRecord( const DiskLoc& loc );
 
         bool capLooped() const { return _capFirstNewRecord.isValid(); }
diff --git a/src/mongo/db/structure/catalog/namespace_details_rsv1_metadata.h b/src/mongo/db/structure/catalog/namespace_details_rsv1_metadata.h
new file mode 100644
index 00000000000..eba482a99a6
--- /dev/null
+++ b/src/mongo/db/structure/catalog/namespace_details_rsv1_metadata.h
@@ -0,0 +1,129 @@
+// namespace_details_rsv1_metadata.h
+
+#include "mongo/db/structure/record_store_v1_base.h"
+
+namespace mongo {
+
+    /*
+     * NOTE: NamespaceDetails will become a struct
+     *      all dur, etc... will move here
+     */
+    class NamespaceDetailsRSV1MetaData : public RecordStoreV1MetaData {
+    public:
+        explicit NamespaceDetailsRSV1MetaData( NamespaceDetails* details ) {
+            _details = details;
+        }
+
+        virtual ~NamespaceDetailsRSV1MetaData(){}
+
+        virtual int bucket(int size) const {
+            return _details->bucket( size );
+        }
+
+        virtual const DiskLoc& capExtent() const {
+            return _details->capExtent();
+        }
+
+        virtual void setCapExtent( const DiskLoc& loc ) {
+            _details->setCapExtent( loc );
+        }
+
+        virtual const DiskLoc& capFirstNewRecord() const {
+            return _details->capFirstNewRecord();
+        }
+
+        virtual void setCapFirstNewRecord( const DiskLoc& loc ) {
+            _details->setCapFirstNewRecord( loc );
+        }
+
+        virtual bool capLooped() const {
+            return _details->capLooped();
+        }
+
+        virtual void clearSystemFlags() {
+            _details->clearSystemFlags();
+        }
+
+        virtual long long dataSize() const {
+            return _details->dataSize();
+        }
+        virtual long long numRecords() const {
+            return _details->numRecords();
+        }
+
+        virtual void incrementStats( long long dataSizeIncrement,
+                                     long long numRecordsIncrement ) {
+            _details->incrementStats( dataSizeIncrement, numRecordsIncrement );
+        }
+
+        virtual void setStats( long long dataSizeIncrement,
+                               long long numRecordsIncrement ) {
+            _details->setStats( dataSizeIncrement,
+                                numRecordsIncrement );
+        }
+
+        virtual const DiskLoc& deletedListEntry( int bucket ) const {
+            return _details->deletedListEntry( bucket );
+        }
+
+        virtual void setDeletedListEntry( int bucket, const DiskLoc& loc ) {
+            _details->setDeletedListEntry( bucket, loc );
+        }
+
+        virtual void orphanDeletedList() {
+            _details->orphanDeletedList();
+        }
+
+        virtual const DiskLoc& firstExtent() const {
+            return _details->firstExtent();
+        }
+
+        virtual void setFirstExtent( const DiskLoc& loc ) {
+            _details->setFirstExtent( loc );
+        }
+
+        virtual const DiskLoc& lastExtent() const {
+            return _details->lastExtent();
+        }
+
+        virtual void setLastExtent( const DiskLoc& loc ) {
+            _details->setLastExtent( loc );
+        }
+
+        virtual bool isCapped() const {
+            return _details->isCapped();
+        }
+
+        virtual bool isUserFlagSet( int flag ) const {
+            return _details->isUserFlagSet( flag );
+        }
+
+        virtual int lastExtentSize() const {
+            return _details->lastExtentSize();
+        }
+
+        virtual void setLastExtentSize( int newMax ) {
+            _details->setLastExtentSize( newMax );
+        }
+
+        virtual long long maxCappedDocs() const {
+            return _details->maxCappedDocs();
+        }
+
+        virtual double paddingFactor() const {
+            return _details->paddingFactor();
+        }
+
+        virtual void setPaddingFactor( double paddingFactor ) {
+            _details->setPaddingFactor( paddingFactor );
+        }
+
+        virtual int quantizePowerOf2AllocationSpace(int allocSize) const {
+            return _details->quantizePowerOf2AllocationSpace( allocSize );
+        }
+
+    private:
+        NamespaceDetails* _details;
+    };
+
+}
diff --git a/src/mongo/db/structure/record_store_v1_base.cpp b/src/mongo/db/structure/record_store_v1_base.cpp
index cc619015b91..fa38ebb3e58 100644
--- a/src/mongo/db/structure/record_store_v1_base.cpp
+++ b/src/mongo/db/structure/record_store_v1_base.cpp
@@ -37,12 +37,11 @@
 #include "mongo/db/storage/extent_manager.h"
 #include "mongo/db/storage/record.h"
 #include "mongo/db/structure/catalog/namespace_details.h"
-#include "mongo/util/mmap.h"
 
 namespace mongo {
 
     RecordStoreV1Base::RecordStoreV1Base( const StringData& ns,
-                                          NamespaceDetails* details,
+                                          RecordStoreV1MetaData* details,
                                           ExtentManager* em,
                                           bool isSystemIndexes )
         : RecordStore( ns ),
diff --git a/src/mongo/db/structure/record_store_v1_base.h b/src/mongo/db/structure/record_store_v1_base.h
index 510016b650f..230a2657124 100644
--- a/src/mongo/db/structure/record_store_v1_base.h
+++ b/src/mongo/db/structure/record_store_v1_base.h
@@ -38,13 +38,63 @@ namespace mongo {
     class CappedRecordStoreV1Iterator;
     class DocWriter;
     class ExtentManager;
-    class NamespaceDetails;
     class Record;
 
+    class RecordStoreV1MetaData {
+    public:
+        virtual ~RecordStoreV1MetaData(){}
+
+        virtual int bucket(int size) const = 0;
+
+        virtual const DiskLoc& capExtent() const = 0;
+        virtual void setCapExtent( const DiskLoc& loc ) = 0;
+
+        virtual const DiskLoc& capFirstNewRecord() const = 0;
+        virtual void setCapFirstNewRecord( const DiskLoc& loc ) = 0;
+
+        virtual bool capLooped() const = 0;
+        virtual void clearSystemFlags() = 0;
+
+        virtual long long dataSize() const = 0;
+        virtual long long numRecords() const = 0;
+
+        virtual void incrementStats( long long dataSizeIncrement,
+                                     long long numRecordsIncrement ) = 0;
+
+        virtual void setStats( long long dataSizeIncrement,
+                               long long numRecordsIncrement ) = 0;
+
+        virtual const DiskLoc& deletedListEntry( int bucket ) const = 0;
+        virtual void setDeletedListEntry( int bucket, const DiskLoc& loc ) = 0;
+        virtual void orphanDeletedList() = 0;
+
+        virtual const DiskLoc& firstExtent() const = 0;
+        virtual void setFirstExtent( const DiskLoc& loc ) = 0;
+
+        virtual const DiskLoc& lastExtent() const = 0;
+        virtual void setLastExtent( const DiskLoc& loc ) = 0;
+
+        virtual bool isCapped() const = 0;
+
+        virtual bool isUserFlagSet( int flag ) const = 0;
+
+        virtual int lastExtentSize() const = 0;
+        virtual void setLastExtentSize( int newMax ) = 0;
+
+        virtual long long maxCappedDocs() const = 0;
+
+        virtual double paddingFactor() const = 0;
+
+        virtual void setPaddingFactor( double paddingFactor ) = 0;
+
+        virtual int quantizePowerOf2AllocationSpace(int allocSize) const = 0;
+
+    };
+
     class RecordStoreV1Base : public RecordStore {
     public:
         RecordStoreV1Base( const StringData& ns,
-                           NamespaceDetails* details,
+                           RecordStoreV1MetaData* details,
                            ExtentManager* em,
                            bool isSystemIndexes );
 
@@ -67,7 +117,7 @@ namespace mongo {
         // TODO: another sad one
         virtual const DeletedRecord* deletedRecordFor( const DiskLoc& loc ) const;
 
-        const NamespaceDetails* details() const { return _details; }
+        const RecordStoreV1MetaData* details() const { return _details.get(); }
 
         /**
          * @return the actual size to create
@@ -112,7 +162,7 @@ namespace mongo {
         */
         void _addRecordToRecListInExtent(Record* r, DiskLoc loc);
 
-        NamespaceDetails* _details;
+        scoped_ptr<RecordStoreV1MetaData> _details;
         ExtentManager* _extentManager;
         bool _isSystemIndexes;
 
diff --git a/src/mongo/db/structure/record_store_v1_capped.cpp b/src/mongo/db/structure/record_store_v1_capped.cpp
index 20c6933c2ba..add403210f7 100644
--- a/src/mongo/db/structure/record_store_v1_capped.cpp
+++ b/src/mongo/db/structure/record_store_v1_capped.cpp
@@ -60,7 +60,7 @@ namespace mongo {
 
     CappedRecordStoreV1::CappedRecordStoreV1( Collection* collection,
                                               const StringData& ns,
-                                              NamespaceDetails* details,
+                                              RecordStoreV1MetaData* details,
                                               ExtentManager* em,
                                               bool isSystemIndexes )
         : RecordStoreV1Base( ns, details, em, isSystemIndexes ),
@@ -315,7 +315,7 @@ namespace mongo {
     }
 
     void CappedRecordStoreV1::cappedCheckMigrate() {
-        // migrate old NamespaceDetails format
+        // migrate old RecordStoreV1MetaData format
         if ( _details->capExtent().a() == 0 && _details->capExtent().getOfs() == 0 ) {
             _details->setCapFirstNewRecord( DiskLoc().setInvalid() );
             // put all the DeletedRecords in cappedListOfAllDeletedRecords()
@@ -554,8 +554,6 @@ namespace mongo {
     void CappedRecordStoreV1::addDeletedRec( const DiskLoc& dloc ) {
         DeletedRecord* d = drec( dloc );
 
-        BOOST_STATIC_ASSERT( sizeof(NamespaceDetails::Extra) <= sizeof(NamespaceDetails) );
-
         {
             Record *r = (Record *) getDur().writingPtr(d, sizeof(Record));
             d = &r->asDeleted();
diff --git a/src/mongo/db/structure/record_store_v1_capped.h b/src/mongo/db/structure/record_store_v1_capped.h
index d8a0252817a..52610ba97b0 100644
--- a/src/mongo/db/structure/record_store_v1_capped.h
+++ b/src/mongo/db/structure/record_store_v1_capped.h
@@ -43,7 +43,7 @@ namespace mongo {
     public:
         CappedRecordStoreV1( Collection* collection,
                              const StringData& ns,
-                             NamespaceDetails* details,
+                             RecordStoreV1MetaData* details,
                              ExtentManager* em,
                              bool isSystemIndexes );
 
diff --git a/src/mongo/db/structure/record_store_v1_capped_iterator.cpp b/src/mongo/db/structure/record_store_v1_capped_iterator.cpp
index 2d5c4b64bc3..44be4685adf 100644
--- a/src/mongo/db/structure/record_store_v1_capped_iterator.cpp
+++ b/src/mongo/db/structure/record_store_v1_capped_iterator.cpp
@@ -48,7 +48,7 @@ namespace mongo {
 
         if (_curr.isNull()) {
 
-            const NamespaceDetails* nsd = _recordStore->details();
+            const RecordStoreV1MetaData* nsd = _recordStore->details();
 
             // If a start position isn't specified, we fill one out from the start of the
             // collection.
@@ -140,7 +140,7 @@ namespace mongo {
 
     DiskLoc CappedRecordStoreV1Iterator::getNextCapped(const DiskLoc& dl) {
         invariant(!dl.isNull());
-        NamespaceDetails* details = _recordStore->_details;
+        const RecordStoreV1MetaData* details = _recordStore->details();
 
         if (CollectionScanParams::FORWARD == _direction) {
             // If it's not looped, it's easy.
diff --git a/src/mongo/db/structure/record_store_v1_simple.cpp b/src/mongo/db/structure/record_store_v1_simple.cpp
index 0964821b646..8a64e735d3d 100644
--- a/src/mongo/db/structure/record_store_v1_simple.cpp
+++ b/src/mongo/db/structure/record_store_v1_simple.cpp
@@ -42,7 +42,6 @@
 #include "mongo/db/storage/record.h"
 #include "mongo/db/structure/catalog/namespace_details.h"
 #include "mongo/db/structure/record_store_v1_simple_iterator.h"
-#include "mongo/util/mmap.h"
 #include "mongo/util/progress_meter.h"
 #include "mongo/util/touch_pages.h"
 
@@ -62,7 +61,7 @@ namespace mongo {
                                                           &freelistIterations );
 
     SimpleRecordStoreV1::SimpleRecordStoreV1( const StringData& ns,
-                                              NamespaceDetails* details,
+                                              RecordStoreV1MetaData* details,
                                               ExtentManager* em,
                                               bool isSystemIndexes )
         : RecordStoreV1Base( ns, details, em, isSystemIndexes ) {
@@ -263,7 +262,6 @@ namespace mongo {
 
     void SimpleRecordStoreV1::addDeletedRec( const DiskLoc& dloc ) {
         DeletedRecord* d = drec( dloc );
-        BOOST_STATIC_ASSERT( sizeof(NamespaceDetails::Extra) <= sizeof(NamespaceDetails) );
 
         {
             Record *r = (Record *) getDur().writingPtr(d, sizeof(Record));
diff --git a/src/mongo/db/structure/record_store_v1_simple.h b/src/mongo/db/structure/record_store_v1_simple.h
index b921b410493..e653cf75cb2 100644
--- a/src/mongo/db/structure/record_store_v1_simple.h
+++ b/src/mongo/db/structure/record_store_v1_simple.h
@@ -41,7 +41,7 @@ namespace mongo {
     class SimpleRecordStoreV1 : public RecordStoreV1Base {
     public:
         SimpleRecordStoreV1( const StringData& ns,
-                             NamespaceDetails* details,
+                             RecordStoreV1MetaData* details,
                              ExtentManager* em,
                              bool isSystemIndexes );