I have been looking for a way to launch daemons on the iPhone and I created a little test application with Xcode by learning from the ants application's source code, which taught me that I should use launchctl But unfortunately it is not working.
I have installed my application with SSH on my iPod Touch in /Applications/, I then launch it with SSH thru the account mobile and my log says this:
Script started on Thu Feb 24 19:33:28 2011
bash-3.2$ ssh mobile@192.168.1.8
mobile@192.168.1.8's password:
iPod-van-Henri:~ mobile$ cd /Applications
iPod-van-Henri:/Applications mobile$ cd DaemonUtility.app/
iPod-van-Henri:/Applications/DaemonUtility.app mobile$ ./DaemonUtility
2011-02-24 19:35:08.022 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:09.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:10.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:11.021 DaemonUtility[1369:107] Read 0 bytes
Bug: launchctl.c:2367 (24307):13: (dbfd = open(g_job_overrides_db_path, O_RDONLY | O_EXLOCK | O_CREAT, S_IRUSR | S_IWUSR)) != -1
launchctl: CFURLWriteDataAndPropertiesToResource(/private/var/stash/Applications.pwn/DaemonUtility.app/com.developerief2.daemontest.plist) failed: -10
launch_msg(): Socket is not connected
2011-02-24 19:35:12.039 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:13.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:14.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:15.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:16.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:17.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:18.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:19.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:20.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:21.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:22.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:23.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:24.021 DaemonUtility[1369:107] Read 0 bytes
2011-02-24 19:35:25.021 DaemonUtility[1369:107] Read 0 bytes
^C
iPod-van-Henri:/Applications/DaemonUtility.app mobile$ exit
logout
Connection to 192.168.1.8 closed.
bash-3.2$ exit
exit
Script done on Thu Feb 24 19:34:49 2011
When I launch it with the root (doing it with su), I get the daemon to run, but it doesn't do anything.
My daemon should display a UIViewAlert every ten seconds since it's launch:
**main.m (Daemon)**
//
// main.m
// DaemonTest
//
// Created by ief2 on 23/02/11.
//
#import <UIKit/UIKit.h>
@interface DAAppDelegate : NSObject <UIApplicationDelegate> {
NSDate *_startupDate;
NSTimer *_messageTimer;
}
@property (nonatomic, retain) NSDate *startupDate;
@end
@interface DAAppDelegate (PrivateMethods)
- (void)showMessage:(NSTimer *)timer;
@end
@implementation DAAppDelegate
@synthesize startupDate=_startupDate;
- (void)dealloc {
[_startupDate dealloc];
[_messageTimer dealloc];
[super dealloc];
}
- (void)applicationDidFinishLaunching:(UIApplication *)theApplication {
UIAlertView *myView;
myView = [[UIAlertView alloc] initWithTitle:@"Daemon Launched"
message:@"The daemon was launched"
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[myView show];
[myView release];
self.startupDate = [NSDate date];
NSTimer *myTimer = [NSTimer scheduledTimerWithTimeInterval:10
target:self
selector:@selector(showMessage:)
userInfo:nil
repeats:YES];
_messageTimer = [myTimer retain];
}
- (void)applicationWillTerminate:(UIApplication *)theApplication {
[_messageTimer invalidate];
UIAlertView *myView;
myView = [[UIAlertView alloc] initWithTitle:@"Daemon Terminated"
message:@"The daemon was terminated"
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[myView show];
[myView release];
}
- (void)showMessage:(NSTimer *)timer {
NSTimeInterval mySec;
mySec = [self.startupDate timeIntervalSinceNow];
NSString *format = [NSString stringWithFormat:
@"The daemon has been running for %llu seconds",
(unsigned long long)mySec];
UIAlertView *myView;
myView = [[UIAlertView alloc] initWithTitle:@"Daemon Message"
message:format
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[myView show];
[myView release];
}
@end
int main(int argc, const char **argv) {
NSAutoreleasePool *mainPool = [[NSAutoreleasePool alloc] init];
UIApplicationMain(argc, (char **)argv, nil, @"DAAppDelegate");
[mainPool drain];
return 0;
}
The full application's source code can be found on my computer:
http://81.82.20.197/DaemonTest.zip
Thank you in advance,
ief2
You are working too hard. All you need to do is create a .plist file with the app identifier and path in it and add it to the /System/Library/LaunchDaemon folder. Then make sure your app is in the /Applications folder. Reboot and it will work each time the phone is booted.
Google "Chris Alvares daemon" and look at his tutorial...