Cleaned up some of the socket code, cleaned up the pipe engines, added support for binary sockets, and cleaned up the asynch connect/accept code

src/socketengines/pipeengine_eventfd.cpp

@@ -1,64 +1,29 @@
 #include "services.h"
 #include <sys/eventfd.h>
 
-class PipeIO : public SocketIO
+Pipe::Pipe() : Socket(eventfd(0, EFD_NONBLOCK))
 {
- public:
-	/** Receive something from the buffer
- 	 * @param s The socket
-	 * @param buf The buf to read to
-	 * @param sz How much to read
-	 * @return Number of bytes received
-	 */
-	int Recv(Socket *s, char *buf, size_t sz)
-	{
-		static eventfd_t dummy;
-		return !eventfd_read(s->GetFD(), &dummy);
-	}
-
-	/** Write something to the socket
- 	 * @param s The socket
-	 * @param buf What to write
-	 * @return Number of bytes written
-	 */
-	int Send(Socket *s, const Anope::string &buf)
-	{
-		return !eventfd_write(s->GetFD(), 1);
-	}
-} pipeSocketIO;
-
-Pipe::Pipe() : BufferedSocket()
-{
-	this->IO = &pipeSocketIO;
-	this->Sock = eventfd(0, EFD_NONBLOCK);
 	if (this->Sock < 0)
-		throw CoreException(Anope::string("Could not create pipe: ") + Anope::LastError());
-
-	this->IPv6 = false;
+		throw CoreException("Could not create pipe: " + Anope::LastError());
 
 	SocketEngine::AddSocket(this);
 }
 
-bool Pipe::ProcessRead()
+Pipe::~Pipe()
 {
-	this->IO->Recv(this, NULL, 0);
-	return this->Read("");
 }
 
-bool Pipe::Read(const Anope::string &)
+bool Pipe::ProcessRead()
 {
+	eventfd_t dummy;
+	eventfd_read(this->GetFD(), &dummy);
 	this->OnNotify();
 	return true;
 }
 
 void Pipe::Notify()
 {
-	/* Note we send this immediatly. If use use Socket::Write and if this functions is called
-	 * from a thread, only epoll is able to pick up the change to this sockets want flags immediately
-	 * Other engines time out then pick up and write the change then read it back, which
-	 * is too slow for most things.
-	 */
-	this->IO->Send(this, "");
+	eventfd_write(this->GetFD(), 1);
 }
 
 void Pipe::OnNotify()