From 7992564e06ed4977c0f4d13fee4f858f6275542a Mon Sep 17 00:00:00 2001
From: Monty Brandenberg <monty@lindenlab.com>
Date: Wed, 1 May 2013 23:19:34 +0000
Subject: SH-4153  Port user and system cpu accounting from example program.
 The http_texture_load example program has some cpu usage gathering tools that
 should be generally useful and specifically for the deadman switch.  Port
 these into llcommon into new all-static class LLProcInfo.  Add unit test,
 etc.

---
 indra/llcommon/llprocinfo.h | 68 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 indra/llcommon/llprocinfo.h

(limited to 'indra/llcommon/llprocinfo.h')

diff --git a/indra/llcommon/llprocinfo.h b/indra/llcommon/llprocinfo.h
new file mode 100644
index 0000000000..e78bcf490a
--- /dev/null
+++ b/indra/llcommon/llprocinfo.h
@@ -0,0 +1,68 @@
+/** 
+* @file   llprocinfo.h
+* @brief  Interface to process/cpu/resource information services.
+* @author monty@lindenlab.com
+*
+* $LicenseInfo:firstyear=2013&license=viewerlgpl$
+* Second Life Viewer Source Code
+* Copyright (C) 2013, Linden Research, Inc.
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License as published by the Free Software Foundation;
+* version 2.1 of the License only.
+*
+* This library is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+* Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public
+* License along with this library; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*
+* Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+* $/LicenseInfo$
+*/
+
+#ifndef	LL_PROCINFO_H
+#define	LL_PROCINFO_H
+
+
+#include "linden_common.h"
+
+/// @file llprocinfo.h
+///
+/// Right now, this is really a namespace disguised as a class.
+/// It wraps some types and functions to return information about
+/// process resource consumption in a non-OS-specific manner.
+///
+/// Threading:  No instances so that's thread-safe.  Implementations
+/// of static functions should be thread-safe, they mostly involve
+/// direct syscall invocations.
+///
+/// Allocation:  Not instantiatable.
+
+class LL_COMMON_API LLProcInfo
+{
+public:
+	/// Public types
+
+	typedef U64 time_type;								/// Relative microseconds
+	
+private:
+	LLProcInfo();										// Not defined
+	~LLProcInfo();										// Not defined
+	LLProcInfo(const LLProcInfo &);						// Not defined
+	void operator=(const LLProcInfo &);					// Not defined
+
+public:
+	/// Get accumulated system and user CPU time in
+	/// microseconds.  Syscalls involved in every invocation.
+	///
+	/// Threading:  expected to be safe.
+	static void getCPUUsage(time_type & user_time, time_type & system_time);
+};
+	
+
+#endif	// LL_PROCINFO_H
-- 
cgit v1.2.3