Second Life viewer sources 1.13.2.12

1 files changed, 188 insertions, 0 deletions

diff --git a/linden/indra/llcommon/llerrorstream.cpp b/linden/indra/llcommon/llerrorstream.cpp
new file mode 100644
index 0000000..ed54d88
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+++ 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();
+        }
+}