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Annotation of fam/fam/Activity.h, Revision 1.1

1.1     ! trev        1: //  Copyright (C) 1999 Silicon Graphics, Inc.  All Rights Reserved.
        !             2: //
        !             3: //  This program is free software; you can redistribute it and/or modify it
        !             4: //  under the terms of version 2 of the GNU General Public License as
        !             5: //  published by the Free Software Foundation.
        !             6: //
        !             7: //  This program is distributed in the hope that it would be useful, but
        !             8: //  WITHOUT ANY WARRANTY; without even the implied warranty of
        !             9: //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  Further, any
        !            10: //  license provided herein, whether implied or otherwise, is limited to
        !            11: //  this program in accordance with the express provisions of the GNU
        !            12: //  General Public License.  Patent licenses, if any, provided herein do not
        !            13: //  apply to combinations of this program with other product or programs, or
        !            14: //  any other product whatsoever.  This program is distributed without any
        !            15: //  warranty that the program is delivered free of the rightful claim of any
        !            16: //  third person by way of infringement or the like.  See the GNU General
        !            17: //  Public License for more details.
        !            18: //
        !            19: //  You should have received a copy of the GNU General Public License along
        !            20: //  with this program; if not, write the Free Software Foundation, Inc., 59
        !            21: //  Temple Place - Suite 330, Boston MA 02111-1307, USA.
        !            22:
        !            23: #ifndef Activity_included
        !            24: #define Activity_included
        !            25:
        !            26: //  The Activity class is used to keep track of when fam is doing
        !            27: //  something worthwhile, and when it isn't.  Currently, the only
        !            28: //  worthwhile activity is talking to (non-internal) clients.  So an
        !            29: //  Activity is enclosed in each TCP_Client.  When the last Activity
        !            30: //  is destroyed, a death timer is started.  When the death timer
        !            31: //  expires, fam expires too.
        !            32: //
        !            33: //  The duration of the timer can be set (timeout()), but there is
        !            34: //  no other public interface to Activity.
        !            35:
        !            36: class Activity {
        !            37:
        !            38: public:
        !            39:
        !            40:     enum { default_timeout = 5 };	// five seconds
        !            41:
        !            42:     Activity();
        !            43:     Activity(const Activity&);
        !            44:     ~Activity();
        !            45:
        !            46:     static void timeout(unsigned t)	{ idle_time = t; }
        !            47:
        !            48: private:
        !            49:
        !            50:     static void task(void *);
        !            51:
        !            52:     static unsigned count;
        !            53:     static unsigned idle_time;
        !            54:
        !            55: };
        !            56:
        !            57: #endif /* !Activity_included */