Add a new SPDataStorage class, and use it in TableContent and CustomQuery:

 - SPDataStorage is a class designed for a 2D array of fixed-width data storage, replacing the current method of nested NSMutableArrays. NSFastEnumerator compatible.
 - Overall memory overhead for table storage in memory reduced by 1.2-1.4x - this almost gains back the large memory jump seen for 64 bit
 - Some operations (adding data, retrieving a single cell's data) are faster than nested NSMutableArrays; some operations (requesting a row as an NSArray) are slightly slower as the data needs to be converted, but overall result is a slight speed gain.
(- Could be used in future to store SQL results in C datatypes, avoiding very high NSObject overhead for numbers and short strings)

1 files changed, 3 insertions, 2 deletions

diff --git a/Source/TableContent.h b/Source/TableContent.h
index c467b865..1b9e4af6 100644
--- a/Source/TableContent.h
+++ b/Source/TableContent.h
@@ -28,7 +28,7 @@
 #import <Cocoa/Cocoa.h>
 #import <MCPKit/MCPKit.h>
 
-@class CMCopyTable, SPTextAndLinkCell, SPHistoryController, SPTableInfo;
+@class CMCopyTable, SPTextAndLinkCell, SPHistoryController, SPTableInfo, SPDataStorage;
 
 @interface TableContent : NSObject 
 {	
@@ -72,7 +72,8 @@
 	pthread_mutex_t tableValuesLock;
 
 	NSString *selectedTable, *usedQuery;
-	NSMutableArray *tableValues, *dataColumns, *keys, *oldRow;
+	SPDataStorage *tableValues;
+	NSMutableArray *dataColumns, *keys, *oldRow;
 	NSUInteger tableRowsCount, previousTableRowsCount;
 	NSString *compareType;
 	NSNumber *sortCol;