Source/DebuggerConnection.m

   1 /*
   2  * MacGDBp
   3  * Copyright (c) 2002 - 2007, Blue Static <http://www.bluestatic.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
   6  * General Public License as published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
  10  * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with this program; if not,
  14  * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  15  */
  16
  17 #import "DebuggerConnection.h"
  18
  19 @implementation DebuggerConnection
  20
  21 /**
  22  * Creates a new DebuggerConnection and initializes the socket from the given connection
  23  * paramters.
  24  */
  25 - (id)initWithPort: (int)port session: (NSString *)session
  26 {
  27         if (self = [super init])
  28         {
  29                 _port = port;
  30                 _session = [session retain];
  31
  32                 _windowController = [[DebuggerWindowController alloc] initWithConnection: self];
  33                 [[_windowController window] makeKeyAndOrderFront: self];
  34
  35                 // now that we have our host information, open the socket
  36                 _socket = [[SocketWrapper alloc] initWithPort: port];
  37                 [_socket setDelegate: self];
  38                 [_windowController setStatus: @"Connecting"];
  39                 [_socket connect];
  40
  41                 // clean up after ourselves
  42                 [[NSNotificationCenter defaultCenter] addObserver: self
  43                                                                                                  selector: @selector(applicationWillTerminate:)
  44                                                                                                          name: NSApplicationWillTerminateNotification
  45                                                                                                    object: NSApp];
  46         }
  47         return self;
  48 }
  49
  50 /**
  51  * Release ourselves when we're about to die
  52  */
  53 - (void)applicationWillTerminate: (NSNotification *)notif
  54 {
  55         [self release];
  56 }
  57
  58 /**
  59  * Releases all of the object's data members and closes the streams
  60  */
  61 - (void)dealloc
  62 {
  63         [_session release];
  64         [_socket release];
  65
  66         [super dealloc];
  67 }
  68
  69 /**
  70  * Gets the port number
  71  */
  72 - (int)port
  73 {
  74         return _port;
  75 }
  76
  77 /**
  78  * Gets the session name
  79  */
  80 - (NSString *)session
  81 {
  82         return _session;
  83 }
  84
  85 /**
  86  * SocketWrapper delegate method that is called whenever new data is received
  87  */
  88 - (void)dataReceived: (NSString *)response deliverTo: (SEL)selector
  89 {
  90         // if the caller of [_socket receive:] specified a deliverTo, just forward the message to them
  91         if (selector != nil)
  92         {
  93                 [self performSelector: selector withObject: response];
  94         }
  95         NSLog(@"response = %@", response);
  96 }
  97
  98 /**
  99  * SocketWrapper delegate method that is called after data is sent. This really
 100  * isn't useful for much.
 101  */
 102 - (void)dataSent
 103 {
 104         NSLog(@"data sent");
 105 }
 106
 107 /**
 108  * Called by SocketWrapper after the connection is successful. This immediately calls
 109  * -[SocketWrapper receive] to clear the way for communication
 110  */
 111 - (void)socketDidAccept
 112 {
 113         [_socket receive: @selector(handshake:)];
 114 }
 115
 116 /**
 117  * Receives errors from the SocketWrapper and updates the display
 118  */
 119 - (void)errorEncountered: (NSError *)error
 120 {
 121         [_windowController setError: [error domain]];
 122 }
 123
 124 /**
 125  * The initial packet handshake. This allows us to set things like the title of the window
 126  * and glean information about hte server we are debugging
 127  */
 128 - (void)handshake: (NSString *)packet
 129 {
 130         [_socket send: @"status -i foo"];
 131         [_socket receive: @selector(updateStatus:)];
 132 }
 133
 134 /**
 135  * Handler used by dataReceived:deliverTo: for anytime the status command is issued. It sets
 136  * the window controller's status text
 137  */
 138 - (void)updateStatus: (NSString *)packet
 139 {
 140         NSXMLDocument *doc = [[NSXMLDocument alloc] initWithXMLString: packet options: NSXMLDocumentTidyXML error: nil];
 141         [_windowController setStatus: [[[[doc rootElement] attributeForName: @"status"] stringValue] capitalizedString]];
 142         [doc release];
 143 }
 144
 145 @end