Imported existing code

indra/llmessage/lliopipe.cpp

@@ -0,0 +1,120 @@
+/** 
+ * @file lliopipe.cpp
+ * @author Phoenix
+ * @date 2004-11-19
+ * @brief Implementation of the LLIOPipe class
+ *
+ * $LicenseInfo:firstyear=2004&license=viewergpl$
+ * 
+ * Copyright (c) 2004-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+#include "lliopipe.h"
+
+#include "llpumpio.h"
+
+static const std::string STATUS_SUCCESS_NAMES[LLIOPipe::STATUS_SUCCESS_COUNT] =
+{
+	std::string("STATUS_OK"),
+	std::string("STATUS_STOP"),
+	std::string("STATUS_DONE"),
+	std::string("STATUS_BREAK"),
+	std::string("STATUS_NEED_PROCESS"),
+};
+
+static const std::string STATUS_ERROR_NAMES[LLIOPipe::STATUS_ERROR_COUNT] =
+{
+	std::string("STATUS_ERROR"),
+	std::string("STATUS_NOT_IMPLEMENTED"),
+	std::string("STATUS_PRECONDITION_NOT_MET"),
+	std::string("STATUS_NO_CONNECTION"),
+	std::string("STATUS_LOST_CONNECTION"),
+	std::string("STATUS_EXPIRED"),
+};
+
+#ifdef LL_DEBUG_PUMPS
+// Debugging schmutz for deadlock
+const char	*gPumpFile = "";
+S32			gPumpLine = 0;
+
+void pump_debug(const char *file, S32 line)
+{
+	gPumpFile = file;
+	gPumpLine = line;
+}
+#endif /* LL_DEBUG_PUMPS */
+
+/**
+ * LLIOPipe
+ */
+LLIOPipe::LLIOPipe() :
+	mReferenceCount(0)
+{
+}
+
+LLIOPipe::~LLIOPipe()
+{
+	//lldebugs << "destroying LLIOPipe" << llendl;
+}
+
+// static
+std::string LLIOPipe::lookupStatusString(EStatus status)
+{
+	if((status >= 0) && (status < STATUS_SUCCESS_COUNT))
+	{
+		return STATUS_SUCCESS_NAMES[status];
+	}
+	else
+	{
+		S32 error_code = ((S32)status * -1) - 1;
+		if(error_code < STATUS_ERROR_COUNT)
+		{
+			return STATUS_ERROR_NAMES[error_code];
+		}
+	}
+	std::string rv;
+	return rv;
+}
+
+LLIOPipe::EStatus LLIOPipe::process(
+	const LLChannelDescriptors& channels,
+	buffer_ptr_t& buffer,
+	bool& eos,
+	LLSD& context,
+	LLPumpIO* pump)
+{
+	return process_impl(channels, buffer, eos, context, pump);
+}
+
+// virtual
+LLIOPipe::EStatus LLIOPipe::handleError(
+	LLIOPipe::EStatus status,
+	LLPumpIO* pump)
+{
+	// by default, the error is not handled.
+	return status;
+}