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/******************************************************************************
* Copyright (C) 2011 Michael Hofmann <mh21@piware.de> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* 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., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
******************************************************************************/
public class DiskIconData : IconData {
private uint64[] lastdata;
private uint64 lasttime;
public DiskIconData() {
// minimum of 1 kb/s
base("diskload", 2, 10, 1000);
}
public override void update_traces() {
uint64[] newdata = new uint64[3];
uint64 newtime = get_monotonic_time();
// TODO: This does not work for LVM or virtual fs
// may give weird results anyway if there are two partitions on the same drive?
// on Linux, maybe copy the code from iotop?
GTop.MountEntry[] mountentries;
GTop.MountList mountlist;
mountentries = GTop.get_mountlist (out mountlist, false);
for (uint i = 0; i < mountlist.number; ++i) {
GTop.FSUsage fsusage;
GTop.get_fsusage(out fsusage, mountentries[i].mountdir);
newdata[0] += fsusage.read;
newdata[1] += fsusage.write;
}
if (this.lastdata.length == 0) {
foreach (unowned IconTraceData trace in this.traces)
trace.add_value(0);
} else {
double delta = (newtime - this.lasttime) / 1e6;
for (uint i = 0, isize = this.traces.length; i < isize; ++i)
this.traces[i].add_value((newdata[i] - this.lastdata[i]) / delta);
}
this.lastdata = newdata;
this.lasttime = newtime;
}
}
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