Add even more of the source

This should be about everything needed to build so far?
2017-03-07 17:14:16 -08:00 · 2017-03-07 17:14:16 -08:00 · 849723c9cf
commit 849723c9cf
parent af3619d4fa
547 changed files with 149239 additions and 0 deletions
--- a/CommonUtilitiesLib/EventContext.h
+++ b/CommonUtilitiesLib/EventContext.h
@ -0,0 +1,180 @@
+/*
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * Copyright (c) 1999-2008 Apple Inc.  All Rights Reserved.
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ *
+ */
+/*
+    File:       EventContext.h
+
+    Contains:   An event context provides the intelligence to take an event
+                generated from a UNIX file descriptor (usually EV_RE or EV_WR)
+                and signal a Task. 
+                    
+
+    
+    
+*/
+
+#ifndef __EVENT_CONTEXT_H__
+#define __EVENT_CONTEXT_H__
+
+#include "OSThread.h"
+#include "Task.h"
+#include "OSRef.h"
+
+#if MACOSXEVENTQUEUE
+    #ifdef AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER
+        #include <sys/ev.h>
+    #else
+        #include "ev.h"
+    #endif
+#else
+    #include "ev.h"
+#endif
+
+
+//enable to trace event context execution and the task associated with the context
+#define EVENTCONTEXT_DEBUG 0
+
+class EventThread;
+
+class EventContext
+{
+    public:
+    
+        //
+        // Constructor. Pass in the EventThread you would like to receive
+        // events for this context, and the fd that this context applies to
+        EventContext(int inFileDesc, EventThread* inThread);
+        virtual ~EventContext() { if (fAutoCleanup) this->Cleanup(); }
+        
+        //
+        // InitNonBlocking
+        //
+        // Sets inFileDesc to be non-blocking. Once this is called, the
+        // EventContext object "owns" the file descriptor, and will close it
+        // when Cleanup is called. This is necessary because of some weird
+        // select() behavior. DON'T CALL CLOSE ON THE FD ONCE THIS IS CALLED!!!!
+        void            InitNonBlocking(int inFileDesc);
+
+        //
+        // Cleanup. Will be called by the destructor, but can be called earlier
+        void            Cleanup();
+
+        //
+        // Arms this EventContext. Pass in the events you would like to receive
+        void            RequestEvent(int theMask = EV_RE);
+
+        
+        //
+        // Provide the task you would like to be notified
+        void            SetTask(Task* inTask)
+        {  
+            fTask = inTask; 
+            if (EVENTCONTEXT_DEBUG)
+            {
+                if (fTask== NULL)  
+                    qtss_printf("EventContext::SetTask context=%p task= NULL\n", (void *) this); 
+                else 
+                    qtss_printf("EventContext::SetTask context=%p task= %p name=%s\n",(void *) this,(void *) fTask, fTask->fTaskName); 
+            }
+        }
+        
+        // when the HTTP Proxy tunnels takes over a TCPSocket, we need to maintain this context too
+        void            SnarfEventContext( EventContext &fromContext );
+        
+        // Don't cleanup this socket automatically
+        void            DontAutoCleanup() { fAutoCleanup = false; }
+        
+        // Direct access to the FD is not recommended, but is needed for modules
+        // that want to use the Socket classes and need to request events on the fd.
+        int             GetSocketFD()       { return fFileDesc; }
+        
+        enum
+        {
+            kInvalidFileDesc = -1   //int
+        };
+
+    protected:
+
+        //
+        // ProcessEvent
+        //
+        // When an event occurs on this file descriptor, this function
+        // will get called. Default behavior is to Signal the associated
+        // task, but that behavior may be altered / overridden.
+        //
+        // Currently, we always generate a Task::kReadEvent
+		virtual void ProcessEvent(int /*eventBits*/) 
+        {   
+            if (EVENTCONTEXT_DEBUG)
+            {
+                if (fTask== NULL)  
+                    qtss_printf("EventContext::ProcessEvent context=%p task=NULL\n",(void *) this); 
+                else 
+                    qtss_printf("EventContext::ProcessEvent context=%p task=%p TaskName=%s\n",(void *)this,(void *) fTask, fTask->fTaskName); 
+            }
+
+            if (fTask != NULL)
+                fTask->Signal(Task::kReadEvent); 
+        }
+
+        int             fFileDesc;
+
+    private:
+
+        struct eventreq fEventReq;
+        
+        OSRef           fRef;
+        PointerSizedInt fUniqueID;
+        StrPtrLen       fUniqueIDStr;
+        EventThread*    fEventThread;
+        Bool16          fWatchEventCalled;
+        int             fEventBits;
+        Bool16          fAutoCleanup;
+
+        Task*           fTask;
+#if DEBUG
+        Bool16          fModwatched;
+#endif
+        
+        static unsigned int sUniqueID;
+        
+        friend class EventThread;
+};
+
+class EventThread : public OSThread
+{
+    public:
+    
+        EventThread() : OSThread() {}
+        virtual ~EventThread() {}
+    
+    private:
+    
+        virtual void Entry();
+        OSRefTable      fRefTable;
+        
+        friend class EventContext;
+};
+
+#endif //__EVENT_CONTEXT_H__