Add some info which might help a bit with debugging threading issues

Source/SPConnectionController.m

@@ -310,7 +310,7 @@ - (IBAction)cancelConnection:(id)sender
 	// Cancel the MySQL connection - handing it off to a background thread - if one is present
 	if (mySQLConnection) {
 		[mySQLConnection setDelegate:nil];
-		[NSThread detachNewThreadWithName:@"SPConnectionController cancellation background disconnect" target:mySQLConnection selector:@selector(disconnect) object:nil];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPConnectionController cancellation background disconnect",dbDocument) target:mySQLConnection selector:@selector(disconnect) object:nil];
 		[mySQLConnection autorelease];
 		mySQLConnection = nil;
 	}
@@ -1871,7 +1871,7 @@ - (void)_documentWillClose:(NSNotification *)notification
 
 	if (mySQLConnection) {
 		[mySQLConnection setDelegate:nil];
-		[NSThread detachNewThreadWithName:@"SPConnectionController close background disconnect" target:mySQLConnection selector:@selector(disconnect) object:nil];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPConnectionController close background disconnect", dbDocument) target:mySQLConnection selector:@selector(disconnect) object:nil];
 		[mySQLConnection autorelease];
 		mySQLConnection = nil;
 		}

Source/SPConnectionHandler.m

@@ -86,7 +86,7 @@ - (void)initiateMySQLConnection
 	[connectButton display];
 #endif
 
-	[NSThread detachNewThreadWithName:@"SPConnectionHandler MySQL connection task" target:self selector:@selector(initiateMySQLConnectionInBackground) object:nil];
+	[NSThread detachNewThreadWithName:SPCtxt(@"SPConnectionHandler MySQL connection task", dbDocument) target:self selector:@selector(initiateMySQLConnectionInBackground) object:nil];
 }
 
 /**

Source/SPCustomQuery.m

@@ -585,7 +585,7 @@ - (void)performQueries:(NSArray *)queries withCallback:(SEL)customQueryCallbackM
 
 	// If a helper thread is already running, execute inline - otherwise detach a new thread for the queries
 	if ([NSThread isMainThread]) {
-		[NSThread detachNewThreadWithName:@"SPCustomQuery query perform task" target:self selector:@selector(performQueriesTask:) object:taskArguments];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPCustomQuery query perform task", tableDocumentInstance) target:self selector:@selector(performQueriesTask:) object:taskArguments];
 	} 
 	else {
 		[self performQueriesTask:taskArguments];

Source/SPDataImport.m

@@ -257,7 +257,7 @@ - (void)importFromClipboardSheetDidEnd:(id)sheet returnCode:(NSInteger)returnCod
 	if (importFileName == nil) return;
 
 	// Begin import process
-	[NSThread detachNewThreadWithName:@"SPDataImport background import task" target:self selector:@selector(_importBackgroundProcess:) object:importFileName];
+	[NSThread detachNewThreadWithName:SPCtxt(@"SPDataImport background import task",tableDocumentInstance) target:self selector:@selector(_importBackgroundProcess:) object:importFileName];
 }
 
 
@@ -326,7 +326,7 @@ - (void)importFile
 		if (importFileName == nil) return;
 
 		// Begin the import process
-		[NSThread detachNewThreadWithName:@"SPDataImport background import task" target:self selector:@selector(_importBackgroundProcess:) object:importFileName];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPDataImport background import task",tableDocumentInstance) target:self selector:@selector(_importBackgroundProcess:) object:importFileName];
 	}];
 }
 
@@ -336,7 +336,7 @@ - (void)importFile
 - (void)startSQLImportProcessWithFile:(NSString *)filename
 {
 	[importFormatPopup selectItemWithTitle:@"SQL"];
-	[NSThread detachNewThreadWithName:@"SPDataImport background import task" target:self selector:@selector(_importBackgroundProcess:) object:filename];
+	[NSThread detachNewThreadWithName:SPCtxt(@"SPDataImport background import task",tableDocumentInstance) target:self selector:@selector(_importBackgroundProcess:) object:filename];
 }
 
 #pragma mark -
@@ -667,7 +667,7 @@ - (void)importSQLFile:(NSString *)filename
 	[tablesListInstance updateTables:self];
 
 	// Re-query the structure of all databases in the background
-	[NSThread detachNewThreadWithName:@"SPNavigatorController database structure querier" target:[tableDocumentInstance databaseStructureRetrieval] selector:@selector(queryDbStructureWithUserInfo:) object:@{@"forceUpdate" : @YES}];
+	[NSThread detachNewThreadWithName:SPCtxt(@"SPNavigatorController database structure querier",tableDocumentInstance) target:[tableDocumentInstance databaseStructureRetrieval] selector:@selector(queryDbStructureWithUserInfo:) object:@{@"forceUpdate" : @YES}];
 
     // Import finished Growl notification
     [[SPGrowlController sharedGrowlController] notifyWithTitle:@"Import Finished" 
@@ -1183,7 +1183,7 @@ - (void)importCSVFile:(NSString *)filename
 		[tablesListInstance performSelectorOnMainThread:@selector(updateTables:) withObject:self waitUntilDone:YES];
 
 		// Re-query the structure of all databases in the background
-		[NSThread detachNewThreadWithName:@"SPNavigatorController database structure querier" target:[tableDocumentInstance databaseStructureRetrieval] selector:@selector(queryDbStructureWithUserInfo:) object:@{@"forceUpdate" : @YES}];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPNavigatorController database structure querier",tableDocumentInstance) target:[tableDocumentInstance databaseStructureRetrieval] selector:@selector(queryDbStructureWithUserInfo:) object:@{@"forceUpdate" : @YES}];
 
 		// Select the new table
 		[tablesListInstance selectItemWithName:selectedTableTarget];

Source/SPDatabaseDocument.h

@@ -60,13 +60,14 @@
 
 #import "SPDatabaseContentViewDelegate.h"
 #import "SPConnectionControllerDelegateProtocol.h"
+#import "SPThreadAdditions.h"
 
 #import <SPMySQL/SPMySQLConnectionDelegate.h>
 
 /**
  * The SPDatabaseDocument class controls the primary database view window.
  */
-@interface SPDatabaseDocument : NSObject <SPConnectionControllerDelegateProtocol, SPMySQLConnectionDelegate, NSTextFieldDelegate, NSToolbarDelegate>
+@interface SPDatabaseDocument : NSObject <SPConnectionControllerDelegateProtocol, SPMySQLConnectionDelegate, NSTextFieldDelegate, NSToolbarDelegate, SPCountedObject>
 {
 #ifdef SP_CODA /* patch */
 	id delegate;
@@ -283,6 +284,8 @@
 #endif
 	SPDatabaseStructure *databaseStructureRetrieval;
 	SPGotoDatabaseController *gotoDatabaseController;
+
+	int64_t instanceId;
 }
 
 #ifdef SP_CODA /* ivars */
@@ -320,6 +323,7 @@
 #endif
 @property (readonly) SPServerSupport *serverSupport;
 @property (readonly) SPDatabaseStructure *databaseStructureRetrieval;
+@property (readonly) int64_t instanceId;
 
 #ifndef SP_CODA /* method decls */
 - (BOOL)isUntitled;

Source/SPDatabaseDocument.m

@@ -113,9 +113,12 @@
 
 #import <SPMySQL/SPMySQL.h>
 
+#include <libkern/OSAtomic.h>
+
 // Constants
 static NSString *SPRenameDatabaseAction = @"SPRenameDatabase";
 static NSString *SPAlterDatabaseAction = @"SPAlterDatabase";
+static int64_t SPDatabaseDocumentInstanceCounter = 0;
 
 @interface SPDatabaseDocument ()
 
@@ -168,13 +171,14 @@ @implementation SPDatabaseDocument
 @synthesize chooseDatabaseButton;
 @synthesize structureContentSwitcher;
 #endif
+@synthesize instanceId;
 
 #pragma mark -
 
 - (id)init
 {
 	if ((self = [super init])) {
-
+		instanceId = OSAtomicIncrement64(&SPDatabaseDocumentInstanceCounter);
 #ifndef SP_CODA /* init ivars */
 
 		_mainNibLoaded = NO;
@@ -594,7 +598,7 @@ - (void)setConnection:(SPMySQLConnection *)theConnection
 		[self startTaskWithDescription:NSLocalizedString(@"Restoring session...", @"Restoring session task description")];
 
 		if ([NSThread isMainThread])
-			[NSThread detachNewThreadWithName:@"SPDatabaseDocument session load task" target:self selector:@selector(restoreSession) object:nil];
+			[NSThread detachNewThreadWithName:SPCtxt(@"SPDatabaseDocument session load task",self) target:self selector:@selector(restoreSession) object:nil];
 		else
 			[self restoreSession];
 	} 
@@ -779,7 +783,7 @@ - (void)selectDatabase:(NSString *)database item:(NSString *)item
 	NSDictionary *selectionDetails = [NSDictionary dictionaryWithObjectsAndKeys:database, @"database", item, @"item", nil];
 
 	if ([NSThread isMainThread]) {
-		[NSThread detachNewThreadWithName:@"SPDatabaseDocument database and table load task" target:self selector:@selector(_selectDatabaseAndItem:) object:selectionDetails];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPDatabaseDocument database and table load task",self) target:self selector:@selector(_selectDatabaseAndItem:) object:selectionDetails];
 	} 
 	else {
 		[self _selectDatabaseAndItem:selectionDetails];
@@ -1023,7 +1027,7 @@ - (void)sheetDidEnd:(id)sheet returnCode:(NSInteger)returnCode contextInfo:(NSSt
 			[self _addDatabase];
 
 			// Query the structure of all databases in the background (mainly for completion)
-			[NSThread detachNewThreadWithName:@"SPNavigatorController database structure querier" target:databaseStructureRetrieval selector:@selector(queryDbStructureWithUserInfo:) object:@{@"forceUpdate" : @YES}];
+			[NSThread detachNewThreadWithName:SPCtxt(@"SPNavigatorController database structure querier",self) target:databaseStructureRetrieval selector:@selector(queryDbStructureWithUserInfo:) object:@{@"forceUpdate" : @YES}];
 		}
 		else {
 			// Reset chooseDatabaseButton

Source/SPDatabaseStructure.m

@@ -102,7 +102,7 @@ - (id)initWithDelegate:(SPDatabaseDocument *)theDelegate
 - (void)setConnectionToClone:(SPMySQLConnection *)aConnection
 {
 	// Perform the task in a background thread to avoid blocking the UI
-	[NSThread detachNewThreadWithName:@"SPDatabaseStructure clone connection task" 
+	[NSThread detachNewThreadWithName:SPCtxt(@"SPDatabaseStructure clone connection task",delegate)
 							   target:self 
 							 selector:@selector(_cloneConnectionFromConnection:) 
 							   object:aConnection];

Source/SPDatabaseViewController.m

@@ -303,7 +303,7 @@ - (void)tabView:(NSTabView *)aTabView didSelectTabViewItem:(NSTabViewItem *)tabV
 	[self startTaskWithDescription:[NSString stringWithFormat:NSLocalizedString(@"Loading %@...", @"Loading table task string"), [self table]]];
 
 	if ([NSThread isMainThread]) {
-		[NSThread detachNewThreadWithName:@"SPDatabaseViewController view load task" 
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPDatabaseViewController view load task",self)
 								   target:self 
 								 selector:@selector(_loadTabTask:) 
 								   object:tabViewItem];
@@ -388,7 +388,7 @@ - (void)loadTable:(NSString *)aTable ofType:(SPTableType)aTableType
 	// If on the main thread, fire up a thread to deal with view changes and data loading;
 	// if already on a background thread, make the changes on the existing thread.
 	if ([NSThread isMainThread]) {
-		[NSThread detachNewThreadWithName:@"SPDatabaseViewController table load task" 
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPDatabaseViewController table load task",self)
 								   target:self 
 								 selector:@selector(_loadTableTask) 
 								   object:nil];

Source/SPExportController.m

@@ -1026,7 +1026,7 @@ - (void)_toggleExportButtonOnBackgroundThread
 	[uiStateDict setObject:[NSNumber numberWithInteger:[exportSQLIncludeContentCheck state]] forKey:SPSQLExportContentEnabled];
 	[uiStateDict setObject:[NSNumber numberWithInteger:[exportSQLIncludeDropSyntaxCheck state]] forKey:SPSQLExportDropEnabled];
 
-	[NSThread detachNewThreadWithName:@"SPExportController export button updater" target:self selector:@selector(_toggleExportButton:) object:uiStateDict];
+	[NSThread detachNewThreadWithName:SPCtxt(@"SPExportController export button updater",tableDocumentInstance) target:self selector:@selector(_toggleExportButton:) object:uiStateDict];
 
 	[uiStateDict release];
 }

Source/SPHistoryController.m

@@ -385,7 +385,7 @@ - (void) loadEntryAtPosition:(NSUInteger)position
 	// Start the task and perform the load
 	[theDocument startTaskWithDescription:NSLocalizedString(@"Loading history entry...", @"Loading history entry task desc")];
 	if ([NSThread isMainThread]) {
-		[NSThread detachNewThreadWithName:@"SPHistoryController load of history entry" target:self selector:@selector(loadEntryTaskWithPosition:) object:[NSNumber numberWithUnsignedInteger:position]];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPHistoryController load of history entry", theDocument) target:self selector:@selector(loadEntryTaskWithPosition:) object:[NSNumber numberWithUnsignedInteger:position]];
 	} else {
 		[self loadEntryTaskWithPosition:[NSNumber numberWithUnsignedInteger:position]];
 	}

Source/SPIndexesController.m

@@ -657,7 +657,7 @@ - (void)addIndexSheetDidEnd:(NSWindow *)theSheet returnCode:(NSInteger)returnCod
 #endif
 
 		if ([NSThread isMainThread]) {
-			[NSThread detachNewThreadWithName:@"SPIndexesController index creation thread" target:self selector:@selector(_addIndexUsingDetails:) object:indexDetails];
+			[NSThread detachNewThreadWithName:SPCtxt(@"SPIndexesController index creation thread", dbDocument) target:self selector:@selector(_addIndexUsingDetails:) object:indexDetails];
 
 			[dbDocument enableTaskCancellationWithTitle:NSLocalizedString(@"Cancel", @"cancel button") callbackObject:self callbackFunction:NULL];
 		}
@@ -685,7 +685,7 @@ - (void)removeIndexSheetDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode
 		[indexDetails setObject:[NSNumber numberWithBool:[(NSString *)contextInfo hasSuffix:@"AndForeignKey"]] forKey:@"RemoveForeignKey"];
 
 		if ([NSThread isMainThread]) {
-			[NSThread detachNewThreadWithName:@"SPIndexesController index removal thread" target:self selector:@selector(_removeIndexUsingDetails:) object:indexDetails];
+			[NSThread detachNewThreadWithName:SPCtxt(@"SPIndexesController index removal thread", dbDocument) target:self selector:@selector(_removeIndexUsingDetails:) object:indexDetails];
 
 			[dbDocument enableTaskCancellationWithTitle:NSLocalizedString(@"Cancel", @"cancel button") callbackObject:self callbackFunction:NULL];
 		}

Source/SPNavigatorController.m

@@ -610,7 +610,7 @@ - (IBAction)reloadAllStructures:(id)sender
 
 	if (![[doc getConnection] isConnected]) return;
 
-	[NSThread detachNewThreadWithName:@"SPNavigatorController database structure querier" target:[doc databaseStructureRetrieval] selector:@selector(queryDbStructureWithUserInfo:) object:@{@"forceUpdate" : @YES}];
+	[NSThread detachNewThreadWithName:SPCtxt(@"SPNavigatorController database structure querier", doc) target:[doc databaseStructureRetrieval] selector:@selector(queryDbStructureWithUserInfo:) object:@{@"forceUpdate" : @YES}];
 }
 
 - (IBAction)outlineViewAction:(id)sender

Source/SPTableContent.m

@@ -1308,7 +1308,7 @@ - (IBAction)reloadTable:(id)sender
 	[tableDocumentInstance startTaskWithDescription:NSLocalizedString(@"Reloading data...", @"Reloading data task description")];
 
 	if ([NSThread isMainThread]) {
-		[NSThread detachNewThreadWithName:@"SPTableContent table reload task" target:self selector:@selector(reloadTableTask) object:nil];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPTableContent table reload task", tableDocumentInstance) target:self selector:@selector(reloadTableTask) object:nil];
 	} else {
 		[self reloadTableTask];
 	}
@@ -1420,7 +1420,7 @@ - (IBAction)filterTable:(id)sender
 	[tableDocumentInstance startTaskWithDescription:taskString];
 
 	if ([NSThread isMainThread]) {
-		[NSThread detachNewThreadWithName:@"SPTableContent filter table task" target:self selector:@selector(filterTableTask) object:nil];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPTableContent filter table task", tableDocumentInstance) target:self selector:@selector(filterTableTask) object:nil];
 	} else {
 		[self filterTableTask];
 	}
@@ -2478,7 +2478,7 @@ - (void)clickLinkArrow:(SPTextAndLinkCell *)theArrowCell
 	// If on the main thread, fire up a thread to perform the load while keeping the modification flag
 	[tableDocumentInstance startTaskWithDescription:NSLocalizedString(@"Loading reference...", @"Loading referece task string")];
 	if ([NSThread isMainThread]) {
-		[NSThread detachNewThreadWithName:@"SPTableContent linked data load task" target:self selector:@selector(clickLinkArrowTask:) object:theArrowCell];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPTableContent linked data load task", tableDocumentInstance) target:self selector:@selector(clickLinkArrowTask:) object:theArrowCell];
 	} else {
 		[self clickLinkArrowTask:theArrowCell];
 	}

Source/SPTableContentDelegate.m

@@ -77,7 +77,7 @@ - (void)tableView:(NSTableView*)tableView didClickTableColumn:(NSTableColumn *)t
 	[tableDocumentInstance startTaskWithDescription:NSLocalizedString(@"Sorting table...", @"Sorting table task description")];
 
 	if ([NSThread isMainThread]) {
-		[NSThread detachNewThreadWithName:@"SPTableContent table sort task" target:self selector:@selector(sortTableTaskWithColumn:) object:tableColumn];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPTableContent table sort task", tableDocumentInstance) target:self selector:@selector(sortTableTaskWithColumn:) object:tableColumn];
 	} 
 	else {
 		[self sortTableTaskWithColumn:tableColumn];

Source/SPTableStructure.m

@@ -535,7 +535,7 @@ - (void)removeFieldSheetDidEnd:(NSAlert *)alert returnCode:(NSInteger)returnCode
 		NSNumber *removeKey = [NSNumber numberWithBool:[(NSString *)contextInfo isEqualToString:SPRemoveFieldAndForeignKey]];
 
 		if ([NSThread isMainThread]) {
-			[NSThread detachNewThreadWithName:@"SPTableStructure field and key removal task" 
+			[NSThread detachNewThreadWithName:SPCtxt(@"SPTableStructure field and key removal task", tableDocumentInstance)
 									   target:self 
 									 selector:@selector(_removeFieldAndForeignKey:) 
 									   object:removeKey];
@@ -969,7 +969,7 @@ - (BOOL)addRowToDB
 		[tableDocumentInstance setContentRequiresReload:YES];
 
 		// Query the structure of all databases in the background
-		[NSThread detachNewThreadWithName:@"SPNavigatorController database structure querier" target:[tableDocumentInstance databaseStructureRetrieval] selector:@selector(queryDbStructureWithUserInfo:) object:[NSDictionary dictionaryWithObjectsAndKeys:@YES, @"forceUpdate", selectedTable, @"affectedItem", [NSNumber numberWithInteger:[tablesListInstance tableType]], @"affectedItemType", nil]];
+		[NSThread detachNewThreadWithName:SPCtxt(@"SPNavigatorController database structure querier", tableDocumentInstance) target:[tableDocumentInstance databaseStructureRetrieval] selector:@selector(queryDbStructureWithUserInfo:) object:[NSDictionary dictionaryWithObjectsAndKeys:@YES, @"forceUpdate", selectedTable, @"affectedItem", [NSNumber numberWithInteger:[tablesListInstance tableType]], @"affectedItemType", nil]];
 
 		return YES;
 	}

Source/SPTableStructureLoading.m

@@ -287,7 +287,7 @@ - (IBAction)reloadTable:(id)sender
 	[tableDocumentInstance setStatusRequiresReload:YES];
 
 	// Query the structure of all databases in the background (mainly for completion)
-	[NSThread detachNewThreadWithName:@"SPNavigatorController database structure querier"
+	[NSThread detachNewThreadWithName:SPCtxt(@"SPNavigatorController database structure querier", tableDocumentInstance)
 							   target:[tableDocumentInstance databaseStructureRetrieval]
 							 selector:@selector(queryDbStructureWithUserInfo:)
 							   object:@{@"forceUpdate" : @YES}];