From 4fb18f31865f9766579d7221b040b1da9c98b561 Mon Sep 17 00:00:00 2001
From: "Nicolas \"Pixel\" Noble" <pixel@nobis-crew.org>
Date: Sat, 21 Dec 2013 23:49:52 -0800
Subject: WebSockets can now send frames.

---
 includes/BStream.h    |  4 +++-
 includes/BWebSocket.h | 26 +++++++++++++++++++++++---
 includes/Task.h       |  1 +
 3 files changed, 27 insertions(+), 4 deletions(-)

(limited to 'includes')

diff --git a/includes/BStream.h b/includes/BStream.h
index fd00b83..f39765d 100644
--- a/includes/BStream.h
+++ b/includes/BStream.h
@@ -11,9 +11,11 @@ class BStream : public Handle {
     virtual bool isClosed();
     virtual bool isEOF();
     virtual bool canRead();
+    virtual bool canWrite() { return m_h->canWrite(); }
     virtual const char * getName();
     virtual ssize_t read(void * buf, size_t count) throw (GeneralException);
-    virtual off64_t getSize();
+    virtual ssize_t write(const void * buf, size_t count) throw (GeneralException) { return m_h->write(buf, count); }
+        virtual off64_t getSize();
     int peekNextByte();
     String readString(bool putNL = false);
     bool isEmpty() { return m_availBytes == 0; }
diff --git a/includes/BWebSocket.h b/includes/BWebSocket.h
index a230a89..49f8cd1 100644
--- a/includes/BWebSocket.h
+++ b/includes/BWebSocket.h
@@ -9,15 +9,33 @@ namespace Balau {
 
 class WebSocketActionBase;
 
+class WebSocketFrame {
+  public:
+      WebSocketFrame(const String & str, uint8_t opcode, bool mask = false) : WebSocketFrame((uint8_t *) str.to_charp(), str.strlen(), opcode, mask) { }
+      WebSocketFrame(size_t len, uint8_t opcode, bool mask = false) : WebSocketFrame(NULL, len, opcode, mask) { }
+      WebSocketFrame(const uint8_t * data, size_t len, uint8_t opcode, bool mask = false);
+      ~WebSocketFrame() { free(m_data); }
+    uint8_t & operator[](size_t idx);
+    uint8_t * getPtr() { return m_data + m_headerSize; }
+    void send(IO<Handle> socket);
+  private:
+    uint8_t * m_data = NULL;
+    size_t m_len = 0;
+    size_t m_headerSize = 0;
+    uint32_t m_mask = 'BLAH';
+    size_t m_bytesSent = 0;
+};
+
 class WebSocketWorker : public StacklessTask {
   public:
     virtual bool parse(Http::Request & req) { return true; }
+    void sendFrame(WebSocketFrame * frame) { m_sendQueue.push(frame); }
   protected:
-      WebSocketWorker(IO<Handle> socket, const String & url) : m_socket(new BStream(socket)) { m_name = String("WebSocket:") + url + "/" + m_socket->getName(); }
-      ~WebSocketWorker() { free(m_payload); }
+      WebSocketWorker(IO<Handle> socket, const String & url) : m_socket(new BStream(socket)) { m_name = String("WebSocket:") + url + ":" + m_socket->getName(); }
+      ~WebSocketWorker();
     void disconnect() { m_socket->close(); }
     virtual void receiveMessage(const uint8_t * msg, size_t len, bool binary) = 0;
-private:
+  private:
     void processMessage();
     void processPing();
     void processPong();
@@ -34,6 +52,8 @@ private:
     } m_status = READ_H;
     enum { MAX_WEBSOCKET_LIMIT = 4 * 1024 * 1024 };
     uint8_t * m_payload = NULL;
+    WebSocketFrame * m_sending = NULL;
+    TQueue<WebSocketFrame> m_sendQueue;
     uint64_t m_payloadLen;
     uint64_t m_totalLen;
     uint64_t m_remainingBytes;
diff --git a/includes/Task.h b/includes/Task.h
index 7521b9f..0f04b32 100644
--- a/includes/Task.h
+++ b/includes/Task.h
@@ -344,6 +344,7 @@ class TQueue : public QueueBase {
   public:
     void push(T * t) { iPush(t, &m_event); }
     T * pop() { return (T *) iPop(&m_event, true); }
+    Events::Async * getEvent() { return &m_event; }
   private:
     Events::Async m_event;
 };
-- 
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