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1 /*
2  * Copyright 2007, Intel Corporation
3  *
4  * This file is part of PowerTOP
5  *
6  * This program file is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU General Public License as published by the
8  * Free Software Foundation; version 2 of the License.
9  *
10  * This program is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program in a file named COPYING; if not, write to the
17  * Free Software Foundation, Inc.,
18  * 51 Franklin Street, Fifth Floor,
19  * Boston, MA 02110-1301 USA
20  *
21  * Authors:
22  * 	Arjan van de Ven <arjan@linux.intel.com>
23  */
24 
25 #include <unistd.h>
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <string.h>
29 #include <stdint.h>
30 #include <sys/types.h>
31 #include <dirent.h>
32 #include <sys/types.h>
33 #include <signal.h>
34 
35 #include "powertop.h"
36 
37 char process_to_kill[1024];
38 
fancy_kill(void)39 static void fancy_kill(void)
40 {
41 	FILE *file;
42 	char line[2048];
43 	char *tokill;
44 	int pid = 0;
45 	tokill = &process_to_kill[1];
46 
47 	file = popen(" ps -A -o pid,command", "r");
48 	if (!file)
49 		return;
50 	while (!feof(file)) {
51 		memset(line, 0, 2048);
52 		if (fgets(line, 2047, file)==NULL)
53 			break;
54 		if (!strstr(line, tokill))
55 			continue;
56 		pid = strtoul(line, NULL, 10);
57 
58 	}
59 	pclose(file);
60 	if (pid<2)
61 		return;
62 	kill(pid, SIGTERM);
63 }
64 
do_kill(void)65 void do_kill(void)
66 {
67 	char line[2048];
68 
69 	if (process_to_kill[0] == '-') {
70 		fancy_kill();
71 	} else {
72 		sprintf(line, "killall %s &> /dev/null", process_to_kill);
73 		system(line);
74 	}
75 }
76 
suggest_process_death(char * process_match,char * tokill,struct line * slines,int linecount,double minwakeups,char * comment,int weight)77 void suggest_process_death(char *process_match, char *tokill, struct line *slines, int linecount, double minwakeups, char *comment, int weight)
78 {
79 	int i;
80 
81 	for (i = 0; i < linecount; i++) {
82 		if (slines[i].string && strstr(slines[i].string, process_match)) {
83 			char hotkey_string[300];
84 			sprintf(hotkey_string, _(" K - kill %s "), tokill);
85 			strcpy(process_to_kill, tokill);
86 			if (minwakeups < slines[i].count)
87 				add_suggestion(comment, weight, 'K' , hotkey_string, do_kill);
88 			break;
89 		}
90 	}
91 	fflush(stdout);
92 }
93