Merge pull request #1564 from tancred/xcodecapp_sync_last_event_id_more_frequently

Make XcodeCapp synchronize file system event status more frequently.

Reviewed.

Tools/XcodeCapp/FSEventCallback.m

@@ -138,4 +138,6 @@ void fsevents_callback(ConstFSEventStreamRef streamRef,
             }
         }
     }
+
+    [xcc updateUserDefaultsWithLastEventId];
 }

Tools/XcodeCapp/TNXCodeCapp.h

@@ -80,6 +80,8 @@ extern NSString * const XCCListeningStartNotification;
 - (void)initializeEventStreamWithPath:(NSString*)aPath;
 - (void)stopEventStream;
 - (void)updateLastEventId:(uint64_t)eventId;
+- (void)updateUserDefaultsWithLastEventId;
+- (void)synchronizeUserDefaultsWithDisk;
 - (void)listenProjectAtPath:(NSString *)path;
 - (void)clear;
 - (void)start;

Tools/XcodeCapp/TNXCodeCapp.m

@@ -195,13 +195,8 @@ NSString * const XCCListeningStartNotification = @"XCCListeningStartNotification
  */
 - (void)clear
 {
-    if (lastEventId && [lastEventId longLongValue] != 0)
-    {
-        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
-        [defaults setObject:lastEventId forKey:@"lastEventId"];
-        [defaults synchronize];
-    }
-
+    [self updateUserDefaultsWithLastEventId];
+    [self synchronizeUserDefaultsWithDisk];
     currentProjectURL = nil;
     currentProjectName = nil;
     [ignoredFilePaths removeAllObjects];
@@ -259,6 +254,25 @@ NSString * const XCCListeningStartNotification = @"XCCListeningStartNotification
     lastEventId = [NSNumber numberWithUnsignedLongLong:eventId];
 }
 
+/*!
+ Updates the user defaults with the last recorded event Id.
+ */
+- (void)updateUserDefaultsWithLastEventId
+{
+    if (lastEventId && [lastEventId longLongValue] != 0)
+    {
+        [[NSUserDefaults standardUserDefaults] setObject:lastEventId forKey:@"lastEventId"];
+    }
+}
+
+/*!
+ Tells the standard user defaults to synchronize with disk.
+ */
+- (void)synchronizeUserDefaultsWithDisk
+{
+    [[NSUserDefaults standardUserDefaults] synchronize];
+}
+
 /*!
  Run a NSTask with the given arguments
  @param arguments NSArray containing the NSTask arguments