Child: [06f35a] (diff)

Download this file

rclionice.cpp    55 lines (48 with data), 1.6 kB

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
/* Copyright (C) 2004 J.F.Dockes
* 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 2 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.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <unistd.h>
#include "rclionice.h"
#include "execmd.h"
#include "debuglog.h"
bool rclionice(const string& clss, const string& cdata)
{
string ionicexe;
if (!ExecCmd::which("ionice", ionicexe)) {
// ionice not found, bail out
LOGDEB0(("rclionice: ionice not found\n"));
return false;
}
vector<string> args;
args.push_back("-c");
args.push_back(clss);
if (!cdata.empty()) {
args.push_back("-n");
args.push_back(cdata);
}
char cpid[100];
sprintf(cpid, "%d", getpid());
args.push_back("-p");
args.push_back(cpid);
ExecCmd cmd;
int status = cmd.doexec(ionicexe, args);
if (status) {
LOGERR(("rclionice: failed, status 0x%x\n", status));
return false;
}
return true;
}