GEEKING

Installer/BootstrapperMac/Roblox/ReLaunchApplication.m

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+//
+//  ReLaunchApplication.m
+//  Roblox
+//
+//  Created by Dharmendra on 03/02/11.
+//  Copyright 2011 __MyCompanyName__. All rights reserved.
+//
+
+#import <Cocoa/Cocoa.h>
+
+
+#pragma mark Main method
+int main(int argc, char *argv[])
+{
+	//initialize required data
+	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+	
+	NSString *appPath = [NSString stringWithCString:argv[1] encoding:NSUTF8StringEncoding];
+	NSLog(@"ReLaunch application path = %@",appPath);
+    
+    if ([[NSFileManager defaultManager] fileExistsAtPath:appPath])
+    {
+        NSTask *launchTask = nil;
+        if (argc > 3)
+        {
+            NSMutableArray *arguments = [NSMutableArray array];
+            
+            for (int ii=3; ii<argc; ++ii)
+            {
+                NSString *arg = [NSString stringWithCString:argv[ii] encoding:NSUTF8StringEncoding];
+                [arguments addObject:arg];
+                NSLog(@"Extra argument %d: %@", ii, arg);
+            }
+            
+            launchTask = [[NSTask alloc] init];
+
+            [launchTask setLaunchPath:appPath];
+            [launchTask setArguments:arguments];
+        }
+        
+        // wait for parent application to exit
+        pid_t parentPID = atoi(argv[2]);
+        ProcessSerialNumber psn;
+        while (GetProcessForPID(parentPID, &psn) != procNotFound)
+            sleep(1);
+        
+        // now launch parent application again
+        if (launchTask != nil)
+        {
+            NSLog(@"Application re-launched using task");
+            [launchTask launch];
+        }
+        else 
+        {
+            NSLog(@"Application re-launched using open file");
+            [[NSWorkspace sharedWorkspace] openFile:[appPath stringByExpandingTildeInPath]];
+        }
+    }
+    else
+    {
+        NSLog(@"Application to re-launch not found");
+    }
+	
+	[pool drain];
+	return 0;
+}