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
33 #include "powertop.h"
34
35
36
37 char suggestion_key;
38 suggestion_func *suggestion_activate;
39
40 struct suggestion;
41
42 struct suggestion {
43 struct suggestion *next;
44
45 char *string;
46 int weight;
47
48 char key;
49 char *keystring;
50
51 suggestion_func *func;
52 };
53
54
55 static struct suggestion *suggestions;
56 static int total_weight;
57
58 static char previous[1024];
59
60
reset_suggestions(void)61 void reset_suggestions(void)
62 {
63 struct suggestion *ptr;
64 ptr = suggestions;
65 while (ptr) {
66 struct suggestion *next;
67 next = ptr->next;
68 free(ptr->string);
69 free(ptr->keystring);
70 free(ptr);
71 ptr = next;
72 }
73 suggestions = NULL;
74 strcpy(status_bar_slots[8],"");
75 suggestion_key = 255;
76 suggestion_activate = NULL;
77 total_weight = 0;
78 }
79
add_suggestion(char * text,int weight,char key,char * keystring,suggestion_func * func)80 void add_suggestion(char *text, int weight, char key, char *keystring, suggestion_func *func)
81 {
82 struct suggestion *new;
83
84 if (!text)
85 return;
86
87 new = malloc(sizeof(struct suggestion));
88 if (!new)
89 return;
90 memset(new, 0, sizeof(struct suggestion));
91 new->string = strdup(text);
92 new->weight = weight;
93 new->key = key;
94 if (keystring)
95 new->keystring = strdup(keystring);
96 new->next = suggestions;
97 new->func = func;
98 suggestions = new;
99 total_weight += weight;
100 }
101
pick_suggestion(void)102 void pick_suggestion(void)
103 {
104 int value, running = 0;
105 struct suggestion *ptr;
106 int weight;
107
108 strcpy(status_bar_slots[8],"");
109 suggestion_key = 255;
110 suggestion_activate = NULL;
111
112 if (total_weight==0 || suggestions==NULL) {
113 /* zero suggestions */
114 show_suggestion("");
115 return;
116 }
117
118 weight = total_weight;
119 if (strlen(previous) && displaytime > 0.0)
120 weight+=50;
121 value = rand() % weight;
122 ptr = suggestions;
123 while (ptr) {
124 running += ptr->weight;
125 if (strcmp(ptr->string, previous)==0 && displaytime > 0.0)
126 running += 50;
127 if (running > value) {
128 if (ptr->keystring)
129 strncpy(status_bar_slots[8],ptr->keystring, 40);
130 suggestion_key = ptr->key;
131 suggestion_activate = ptr->func;
132 show_suggestion(ptr->string);
133 if (strcmp(ptr->string, previous)) {
134 displaytime = 30.0;
135 strcpy(previous, ptr->string);
136 }
137 return;
138 }
139 ptr = ptr->next;
140 }
141 show_suggestion("");
142 memset(previous, 0, sizeof(previous));
143 displaytime = -1.0;
144 }
145
print_all_suggestions(void)146 void print_all_suggestions(void)
147 {
148 struct suggestion *ptr;
149
150 for (ptr = suggestions; ptr; ptr = ptr->next)
151 printf("\n%s\n", ptr->string);
152 }
153