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/*
* Copyright (C) 2009-2010 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 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, see <http://www.gnu.org/licenses/>.
*
* Authored by Gord Allott <gord.allott@canonical.com>
*
*/
namespace Perf
{
public class ProcessInfo
{
public ProcessInfo (string name)
{
this.name = name;
start = 0;
end = 0;
}
public string name;
public double start;
public double end;
}
public static TimelineLogger? timeline_singleton;
public static bool is_logging;
public class TimelineLogger : Object
{
private Timer global_timer;
private Gee.HashMap<string, ProcessInfo> process_map;
public static unowned Perf.TimelineLogger get_default ()
{
if (Perf.timeline_singleton == null)
{
Perf.timeline_singleton = new Perf.TimelineLogger ();
}
return Perf.timeline_singleton;
}
construct
{
this.process_map = new Gee.HashMap<string, ProcessInfo> ();
this.global_timer = new Timer ();
this.global_timer.start ();
}
public void start_process (string name)
{
if (name in this.process_map.keys)
{
warning ("already started process: %s", name);
return;
}
var info = new ProcessInfo (name);
this.process_map[name] = info;
info.start = this.global_timer.elapsed ();
}
public void end_process (string name)
{
double end_time = this.global_timer.elapsed ();
print ("the end time is %f", end_time);
if (name in this.process_map.keys)
{
this.process_map[name].end = end_time;
}
else
{
warning ("process %s not started", name);
}
}
public void write_log (string filename)
{
debug ("Writing performance log file: %s...", filename);
var log_file = File.new_for_path (filename);
FileOutputStream file_stream;
try
{
if (!log_file.query_exists (null)) {
file_stream = log_file.create (FileCreateFlags.NONE, null);
}
else
{
file_stream = log_file.replace (null, false, FileCreateFlags.NONE, null);
}
var output_stream = new DataOutputStream (file_stream);
foreach (ProcessInfo info in this.process_map.values)
{
string name = info.name.replace (",", ";");
string outline = "%s, %f, %f\n".printf(name, info.start, info.end);
output_stream.put_string (outline, null);
}
file_stream.close (null);
} catch (Error e)
{
warning (e.message);
}
debug ("Done writing performance log file: %s", filename);
}
}
}
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