aboutsummaryrefslogtreecommitdiffstats
path: root/LoadAverageMeter.c
blob: 3fe3d9000bc931109f7d9dbc62abb9b2149284cd (plain) (blame)
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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
/*
htop - LoadAverageMeter.c
(C) 2004-2011 Hisham H. Muhammad
Released under the GNU GPLv2+, see the COPYING file
in the source distribution for its full text.
*/

#include "LoadAverageMeter.h"

#include "CRT.h"
#include "Object.h"
#include "Platform.h"
#include "ProcessList.h"
#include "RichString.h"
#include "XUtils.h"


static const int LoadAverageMeter_attributes[] = {
   LOAD_AVERAGE_ONE,
   LOAD_AVERAGE_FIVE,
   LOAD_AVERAGE_FIFTEEN
};

static const int LoadMeter_attributes[] = {
   LOAD
};

static const int OK_attributes[] = {
   METER_VALUE_OK
};

static const int Medium_attributes[] = {
   METER_VALUE_WARN
};

static const int High_attributes[] = {
   METER_VALUE_ERROR
};

static void LoadAverageMeter_updateValues(Meter* this) {
   Platform_getLoadAverage(&this->values[0], &this->values[1], &this->values[2]);

   // only show bar for 1min value
   this->curItems = 1;

   // change bar color and total based on value
   if (this->values[0] < 1.0) {
      this->curAttributes = OK_attributes;
      this->total = 1.0;
   } else if (this->values[0] < this->pl->activeCPUs) {
      this->curAttributes = Medium_attributes;
      this->total = this->pl->activeCPUs;
   } else {
      this->curAttributes = High_attributes;
      this->total = 2 * this->pl->activeCPUs;
   }

   xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "%.2f/%.2f/%.2f", this->values[0], this->values[1], this->values[2]);
}

static void LoadAverageMeter_display(const Object* cast, RichString* out) {
   const Meter* this = (const Meter*)cast;
   char buffer[20];
   int len;

   len = xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[0]);
   RichString_appendnAscii(out, CRT_colors[LOAD_AVERAGE_ONE], buffer, len);
   len = xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[1]);
   RichString_appendnAscii(out, CRT_colors[LOAD_AVERAGE_FIVE], buffer, len);
   len = xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[2]);
   RichString_appendnAscii(out, CRT_colors[LOAD_AVERAGE_FIFTEEN], buffer, len);
}

static void LoadMeter_updateValues(Meter* this) {
   double five, fifteen;
   Platform_getLoadAverage(&this->values[0], &five, &fifteen);

   // change bar color and total based on value
   if (this->values[0] < 1.0) {
      this->curAttributes = OK_attributes;
      this->total = 1.0;
   } else if (this->values[0] < this->pl->activeCPUs) {
      this->curAttributes = Medium_attributes;
      this->total = this->pl->activeCPUs;
   } else {
      this->curAttributes = High_attributes;
      this->total = 2 * this->pl->activeCPUs;
   }

   xSnprintf(this->txtBuffer, sizeof(this->txtBuffer), "%.2f", this->values[0]);
}

static void LoadMeter_display(const Object* cast, RichString* out) {
   const Meter* this = (const Meter*)cast;
   char buffer[20];
   int len;

   len = xSnprintf(buffer, sizeof(buffer), "%.2f ", this->values[0]);
   RichString_appendnAscii(out, CRT_colors[LOAD], buffer, len);
}

const MeterClass LoadAverageMeter_class = {
   .super = {
      .extends = Class(Meter),
      .delete = Meter_delete,
      .display = LoadAverageMeter_display,
   },
   .updateValues = LoadAverageMeter_updateValues,
   .defaultMode = TEXT_METERMODE,
   .maxItems = 3,
   .total = 100.0,
   .attributes = LoadAverageMeter_attributes,
   .name = "LoadAverage",
   .uiName = "Load average",
   .description = "Load averages: 1 minute, 5 minutes, 15 minutes",
   .caption = "Load average: "
};

const MeterClass LoadMeter_class = {
   .super = {
      .extends = Class(Meter),
      .delete = Meter_delete,
      .display = LoadMeter_display,
   },
   .updateValues = LoadMeter_updateValues,
   .defaultMode = TEXT_METERMODE,
   .maxItems = 1,
   .total = 100.0,
   .attributes = LoadMeter_attributes,
   .name = "Load",
   .uiName = "Load",
   .description = "Load: average of ready processes in the last minute",
   .caption = "Load: "
};

© 2014-2024 Faster IT GmbH | imprint | privacy policy