Diff: api/types/SocketIrqHandlerMap.h

Revision:

29:b6af04b77a56

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/api/types/SocketIrqHandlerMap.h	Mon Oct 27 13:42:26 2014 -0700
@@ -0,0 +1,128 @@
+/**
+ * ACKme WiConnect Host Library is licensed under the BSD licence: 
+ * 
+ * Copyright (c)2014 ACKme Networks.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met: 
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, 
+ * this list of conditions and the following disclaimer. 
+ * 2. Redistributions in binary form must reproduce the above copyright notice, 
+ * this list of conditions and the following disclaimer in the documentation 
+ * and/or other materials provided with the distribution. 
+ * 3. The name of the author may not be used to endorse or promote products 
+ * derived from this software without specific prior written permission. 
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * OF SUCH DAMAGE.
+ */
+#pragma once
+
+#include "Wiconnect.h"
+#include "PinIrqHandler.h"
+
+namespace wiconnect
+{
+
+/**
+ * Generic callback function.
+ *
+ * @note Internal use only.
+ */
+class SocketIrqHandlerMap
+{
+public:
+    /*************************************************************************************************/
+    SocketIrqHandlerMap()
+    {
+        memset(handlers, 0, sizeof(handlers));
+    }
+
+    /*************************************************************************************************/
+    ~SocketIrqHandlerMap()
+    {
+        for(int i = 0; i < WICONNECT_MAX_PIN_IRQ_HANDLERS; ++i)
+        {
+            if(handlers[i] != NULL)
+            {
+                handlers[i]->~PinIrqHandler();
+            }
+        }
+    }
+
+    /*************************************************************************************************/
+    bool pinIsRegistered(Pin pin)
+    {
+        for(int i = 0; i < WICONNECT_MAX_PIN_IRQ_HANDLERS; ++i)
+        {
+            if(handlers[i] != NULL && handlers[i]->irqPin == pin)
+            {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /*************************************************************************************************/
+    WiconnectResult registerHandler(Pin pin, const Callback &callback)
+    {
+        if(pinIsRegistered(pin))
+        {
+            return WICONNECT_DUPLICATE;
+        }
+
+        PinIrqHandler *handler = NULL;
+
+        for(int i = 0; i < WICONNECT_MAX_PIN_IRQ_HANDLERS; ++i)
+        {
+            if(handlers[i] == NULL)
+            {
+                handler = (PinIrqHandler*)&handlerBuffers[i];
+                handlers[i] = handler;
+            }
+        }
+
+        if(handler == NULL)
+        {
+            return WICONNECT_NOT_FOUND;
+        }
+
+        *handler = PinIrqHandler(pin, callback);
+
+        return WICONNECT_SUCCESS;
+    }
+
+    /*************************************************************************************************/
+    WiconnectResult unregisterHandler(Pin pin)
+    {
+        for(int i = 0; i < WICONNECT_MAX_PIN_IRQ_HANDLERS; ++i)
+        {
+            if(handlers[i] != NULL && handlers[i]->irqPin == pin)
+            {
+                handlers[i]->~PinIrqHandler();
+                handlers[i] = NULL;
+                return WICONNECT_SUCCESS;
+            }
+        }
+
+        return WICONNECT_NOT_FOUND;
+    }
+
+private:
+    PinIrqHandler *handlers[WICONNECT_MAX_PIN_IRQ_HANDLERS];
+    PinIrqHandlerBuffer handlerBuffers[WICONNECT_MAX_PIN_IRQ_HANDLERS];
+};
+
+
+
+}