Optimize much of the database code and serialize code.

src/pipeengine.cpp

@@ -0,0 +1,81 @@
+/*
+ *
+ * (C) 2003-2012 Anope Team
+ * Contact us at team@anope.org
+ *
+ * Please read COPYING and README for further details.
+ *
+ * Based on the original code of Epona by Lara.
+ * Based on the original code of Services by Andy Church.
+ */
+
+#include "services.h"
+#include "sockets.h"
+#include "socketengine.h"
+
+#ifndef _WIN32
+#include <fcntl.h>
+#endif
+
+Pipe::Pipe() : Socket(-1), write_pipe(-1)
+{
+	int fds[2];
+	if (pipe(fds))
+		throw CoreException("Could not create pipe: " + Anope::LastError());
+	int flags = fcntl(fds[0], F_GETFL, 0);
+	fcntl(fds[0], F_SETFL, flags | O_NONBLOCK);
+	flags = fcntl(fds[1], F_GETFL, 0);
+	fcntl(fds[1], F_SETFL, flags | O_NONBLOCK);
+
+	SocketEngine::Change(this, false, SF_READABLE);
+	SocketEngine::Change(this, false, SF_WRITABLE);
+	anope_close(this->sock);
+	this->io->Destroy();
+	SocketEngine::Sockets.erase(this->sock);
+
+	this->sock = fds[0];
+	this->write_pipe = fds[1];
+
+	SocketEngine::Sockets[this->sock] = this;
+	SocketEngine::Change(this, true, SF_READABLE);
+}
+
+Pipe::~Pipe()
+{
+	if (this->write_pipe >= 0)
+		anope_close(this->write_pipe);
+}
+
+bool Pipe::ProcessRead()
+{
+	this->OnNotify();
+
+	char dummy[512];
+	while (read(this->GetFD(), dummy, 512) == 512);
+	return true;
+}
+
+void Pipe::Write(const char *data, size_t sz)
+{
+	write(this->write_pipe, data, sz);
+}
+
+int Pipe::Read(char *data, size_t sz)
+{
+	return read(this->GetFD(), data, sz);
+}
+
+bool Pipe::SetWriteBlocking(bool state)
+{
+	int flags = fcntl(this->write_pipe, F_GETFL, 0);
+	if (state)
+		return !fcntl(this->write_pipe, F_SETFL, flags & ~O_NONBLOCK);
+	else
+		return !fcntl(this->write_pipe, F_SETFL, flags | O_NONBLOCK);
+}
+
+void Pipe::Notify()
+{
+	this->Write("\0", 1);
+}
+