/indra/llcommon/llheartbeat.h
C++ Header | 68 lines | 25 code | 8 blank | 35 comment | 0 complexity | 7fb5837746f7831d778e594f0afaf833 MD5 | raw file
Possible License(s): LGPL-2.1
- /**
- * @file llheartbeat.h
- * @brief Class encapsulating logic for telling a watchdog that we live.
- *
- * $LicenseInfo:firstyear=2008&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, 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_LLHEARTBEAT_H
- #define LL_LLHEARTBEAT_H
- #include "linden_common.h"
- #include "lltimer.h"
- // Note: Win32 does not support the heartbeat/smackdown system;
- // heartbeat-delivery turns into a no-op there.
- class LL_COMMON_API LLHeartbeat
- {
- public:
- // secs_between_heartbeat: after a heartbeat is successfully delivered,
- // we suppress sending more for this length of time.
- // aggressive_heartbeat_panic_secs: if we've been failing to
- // successfully deliver heartbeats for this length of time then
- // we block for a while until we're really sure we got one delivered.
- // aggressive_heartbeat_max_blocking_secs: this is the length of
- // time we block for when we're aggressively ensuring that a 'panic'
- // heartbeat was delivered.
- LLHeartbeat(F32 secs_between_heartbeat = 5.0f,
- F32 aggressive_heartbeat_panic_secs = 10.0f,
- F32 aggressive_heartbeat_max_blocking_secs = 4.0f);
- ~LLHeartbeat();
- bool send(F32 timeout_sec = 0.0f);
- void setSuppressed(bool is_suppressed);
- private:
- int rawSend();
- int rawSendWithTimeout(F32 timeout_sec);
- F32 mSecsBetweenHeartbeat;
- F32 mAggressiveHeartbeatPanicSecs;
- F32 mAggressiveHeartbeatMaxBlockingSecs;
- bool mSuppressed;
- LLTimer mBeatTimer;
- LLTimer mPanicTimer;
- LLTimer mTimeoutTimer;
- };
- #endif // LL_HEARTBEAT_H