From 38d6d37f2d982fa959e9e8a4a3f7e1ccfad7b5d4 Mon Sep 17 00:00:00 2001
From: Jacek Antonelli
Date: Fri, 15 Aug 2008 23:44:46 -0500
Subject: Second Life viewer sources 1.13.2.12

---
 linden/indra/llcommon/llerrorstream.cpp | 188 ++++++++++++++++++++++++++++++++
 1 file changed, 188 insertions(+)
 create mode 100644 linden/indra/llcommon/llerrorstream.cpp

(limited to 'linden/indra/llcommon/llerrorstream.cpp')

diff --git a/linden/indra/llcommon/llerrorstream.cpp b/linden/indra/llcommon/llerrorstream.cpp
new file mode 100644
index 0000000..ed54d88
--- /dev/null
+++ b/linden/indra/llcommon/llerrorstream.cpp
@@ -0,0 +1,188 @@
+/** 
+ * @file llerrorstream.cpp
+ * @brief Implementation of c++ log straming.
+ *
+ * Copyright (c) 2002-2007, Linden Research, Inc.
+ * 
+ * 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://secondlife.com/developers/opensource/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://secondlife.com/developers/opensource/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.
+ */
+
+#include "linden_common.h"
+
+#include "llerrorstream.h"
+#include "llerrorbuffer.h"
+#include "llerror.h"
+
+using namespace std;
+
+// Define this if we're using APR mutexes.
+#include "llapr.h"
+extern apr_thread_mutex_t *gLogMutexp;
+
+// In order to compile in Visual C++ 6.0, you must use std:: in the header, and then
+// use the std namespace in the cpp.  Otherwise, you'll break the (very) fragile C++ parser.
+LLErrorStream::LLErrorStream(LLErrorBuffer *eb):
+		ostream(eb),
+		mErrorBuffer(eb),
+		mKill(FALSE),
+		mErrorCallback(NULL)
+{
+#ifdef SHOW_DEBUG
+	setErrorLevel(LLErrorBuffer::DEBUG);
+#else
+#ifdef SHOW_INFO
+	setErrorLevel(LLErrorBuffer::INFO);
+#else
+#ifdef SHOW_WARN
+	setErrorLevel(LLErrorBuffer::WARN);
+#else
+	setErrorLevel(LLErrorBuffer::FATAL);
+#endif // SHOW_WARN
+#endif // SHOW_INFO
+#endif // SHOW_DEBUG
+
+	setDebugMask(LLERR_NONE);
+	setPrintLocation(FALSE);
+}
+
+LLErrorBuffer::ELevel LLErrorStream::ELevelToBufferELevel(const ELevel l)
+{
+	switch (l)
+	{
+	case DEBUG:
+		return LLErrorBuffer::DEBUG;
+	case INFO:
+		return LLErrorBuffer::INFO;
+	case WARN:
+		return LLErrorBuffer::WARN;
+	case FATAL:
+		return LLErrorBuffer::FATAL;
+	default:
+		return LLErrorBuffer::FATAL;
+	}
+}
+
+LLErrorStream::ELevel LLErrorStream::BufferELevelToELevel(const LLErrorBuffer::ELevel l)
+{
+	switch(l)
+	{
+	case LLErrorBuffer::DEBUG:
+		return DEBUG;
+	case LLErrorBuffer::INFO:
+		return INFO;
+	case LLErrorBuffer::WARN:
+		return WARN;
+	case LLErrorBuffer::FATAL:
+		return FATAL;
+	default:
+		return FATAL;
+	}
+}
+
+
+BOOL LLErrorStream::isEnabledFor(const LLErrorBuffer::ELevel l)
+{
+	if (l == LLErrorBuffer::FATAL)
+	{
+		if (LLErrorBuffer::FATAL < getErrorLevel())
+		{
+			// Fatal error, but we're at log level NONE (used by signal handlers)
+			// We want to crash this process now instead of logging
+			_llcrash_and_loop();
+		}
+	}
+	// Always returns false if not safe (recursive call)
+	return (getErrorLevel() <= l);
+}
+
+
+BOOL LLErrorStream::isEnabledFor(const LLErrorBuffer::ELevel l, const U32 type)
+{
+	// Always returns false if not safe (recursive call)
+	return (getErrorLevel() <= l) && (mDebugMask & type);
+}
+
+
+
+void LLErrorStream::crashOnError(std::ostringstream &oss, LLErrorBuffer::ELevel l)
+{
+	if (gLogMutexp)
+	{
+		const S32 MAX_RETRIES = 5;
+		S32 attempts = 0;
+		while (attempts < MAX_RETRIES)
+		{
+			apr_status_t s = apr_thread_mutex_trylock(gLogMutexp);
+			if (!APR_STATUS_IS_EBUSY(s))
+			{
+				break;
+			}
+			else
+			{
+				attempts++;
+				ms_sleep(1);
+
+				//
+				// Just yielding won't necessarily work, I had problems with this on Linux - doug 12/02/04
+				//apr_thread_yield();
+			}
+		}
+		if (attempts == MAX_RETRIES)
+		{
+			// We're hosed, we can't get the mutex.
+			// I guess we just won't log, then.  Blah.
+			fprintf(stderr, "LLErrorStream::crashOnError() failed to get mutex for log\n");
+			return;
+		}
+	}
+
+	mErrorBuffer->setPriority(l);
+	if (LLErrorBuffer::FATAL == l)
+	{
+		setError();
+	}
+
+	*this << oss.str();
+
+	if (mKill)
+	{
+		// We want to flush this stream.
+		flush();
+	}
+
+	BOOL crashme = FALSE;
+	if (mKill)
+	{
+		crashme = TRUE;
+	}
+	mKill = FALSE;
+
+	if (gLogMutexp)
+	{
+		apr_thread_mutex_unlock(gLogMutexp);
+	}
+
+	if (crashme)
+	{
+		mErrorCallback(oss.str());
+		_llcrash_and_loop();
+	}
+}
-- 
cgit v1.1