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/* -*- Mode:C++ -*- */
/*
* process_model.hh
* Copyright (C) 1999 by John Heidemann
* $Id: process_model.hh,v 1.23 1999/09/06 18:16:16 johnh Exp $
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifndef lavaps_process_model_h
#define lavaps_process_model_h
#include <unistd.h> // pid_t
#include "change_tracking.hh"
#include "process_view.hh"
#include "const_str.hh"
class process_model;
class process_view;
/*
* process_model: a system-independent representation of the
* interesting information about a process.
*/
class process_model {
// most of these are to give access to the details
// cleaner would be to have set/access functions for *each*
// member variable.
friend class process_view;
protected:
process_model(const process_model& tb);
process_model& operator=(const process_model& tb);
// used for tracking process age via age()
time_t last_run_time_,
next_age_time_;
int age_increment_;
change_tracking<int> exponential_age_;
process_view *pv_;
// rest is the details:
int pid_; // required!
int uid_;
// should add tty? only when we want to use it.
const_str cmd_; // program name (just the program, not the whole cmd line)
change_tracking<int> cmd_hash_; // hash of cmd name
// int priority_; // kernel adjusted prio
int nice_; // user-supplied nice value
time_t start_time_;
change_tracking<time_t> utime_; // cumulative user time (in usec)
change_tracking<time_t> stime_; // cumulative system time
// use KB below to avoid unsigned ugliness
change_tracking<int> virtual_size_; // total memory size in KB
change_tracking<int> resident_; // resident memory size in KB (could be partially shared)
change_tracking<int> inmem_pct_; // % of process in memory
static int cmd_hashify(const char *cmd);
public:
bool found_; // found this scan
process_model(int pid);
~process_model();
void init_view() { pv_ = new process_view(this); }
void update_view() { pv_->update(); }
int age() { return exponential_age_.last(); }
void age(time_t now, bool reinit = false);
void set_uid(int a) { uid_ = a; }
void set_nice(int a) { nice_ = a; }
void set_start_time(int a) { start_time_ = a; }
void set_cmd(const char *c);
void set_utime(int t) { utime_.tick_set(t); }
void set_stime(int t) { stime_.tick_set(t); }
void set_virtual_size(int s) { virtual_size_.tick_set(s); }
void set_resident(int s) { resident_.tick_set(s); }
// void set_inmem_pct(int s) { inmem_pct_.tick_set(s); }
void check_inmem_pct();
int pid() { return pid_; }
void dump();
process_view *view() { return pv_; }
};
#endif /* lavaps_process_model_h */
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