1 //****************************************************************************************
2 //
3 // File: PulseView.cpp
4 //
5 // Written by: David Ramsey and Daniel Switkin
6 //
7 // Copyright 1999, Be Incorporated
8 //
9 //****************************************************************************************
10
11 #include "PulseView.h"
12
13 #include <stdlib.h>
14 #include <stdio.h>
15 #include <string.h>
16
17 #include <Alert.h>
18 #include <Catalog.h>
19
20 #include <syscalls.h>
21
22 #include "Common.h"
23 #include "PulseApp.h"
24
25 #undef B_TRANSLATION_CONTEXT
26 #define B_TRANSLATION_CONTEXT "PulseView"
27
28
PulseView(BRect rect,const char * name)29 PulseView::PulseView(BRect rect, const char *name)
30 :
31 BView(rect, name, B_FOLLOW_ALL_SIDES,
32 B_WILL_DRAW | B_PULSE_NEEDED | B_FRAME_EVENTS),
33 kCPUCount(sysconf(_SC_NPROCESSORS_CONF)),
34 cpu_times(new double[kCPUCount]),
35 prev_active(new bigtime_t[kCPUCount])
36 {
37
38 popupmenu = NULL;
39 cpu_menu_items = NULL;
40
41 // Don't init the menus for the DeskbarPulseView, because this instance
42 // will only be used to archive the replicant
43 if (strcmp(name, "DeskbarPulseView") != 0) {
44 Init();
45 }
46 }
47
48 // This version will be used by the instantiated replicant
PulseView(BMessage * message)49 PulseView::PulseView(BMessage *message)
50 :
51 BView(message),
52 kCPUCount(sysconf(_SC_NPROCESSORS_CONF)),
53 cpu_times(new double[kCPUCount]),
54 prev_active(new bigtime_t[kCPUCount])
55 {
56 SetResizingMode(B_FOLLOW_ALL_SIDES);
57 SetFlags(B_WILL_DRAW | B_PULSE_NEEDED);
58
59 popupmenu = NULL;
60 cpu_menu_items = NULL;
61 Init();
62 }
63
Init()64 void PulseView::Init() {
65 memset(cpu_times, 0, sizeof(double) * kCPUCount);
66 memset(prev_active, 0, sizeof(double) * kCPUCount);
67
68 popupmenu = new BPopUpMenu("PopUpMenu", false, false, B_ITEMS_IN_COLUMN);
69 popupmenu->SetFont(be_plain_font);
70 mode1 = new BMenuItem("", NULL, 0, 0);
71 mode2 = new BMenuItem("", NULL, 0, 0);
72 preferences = new BMenuItem(B_TRANSLATE("Settings" B_UTF8_ELLIPSIS),
73 new BMessage(PV_PREFERENCES), 0, 0);
74 about = new BMenuItem(B_TRANSLATE("About Pulse" B_UTF8_ELLIPSIS),
75 new BMessage(PV_ABOUT), 0, 0);
76
77 popupmenu->AddItem(mode1);
78 popupmenu->AddItem(mode2);
79 popupmenu->AddSeparatorItem();
80
81 system_info sys_info;
82 get_system_info(&sys_info);
83
84 // Only add menu items to control CPUs on an SMP machine
85 if (sys_info.cpu_count >= 2) {
86 cpu_menu_items = new BMenuItem *[sys_info.cpu_count];
87 char temp[20];
88 for (unsigned int x = 0; x < sys_info.cpu_count; x++) {
89 sprintf(temp, "CPU %d", x + 1);
90 BMessage *message = new BMessage(PV_CPU_MENU_ITEM);
91 message->AddInt32("which", x);
92 cpu_menu_items[x] = new BMenuItem(temp, message, 0, 0);
93 popupmenu->AddItem(cpu_menu_items[x]);
94 }
95 popupmenu->AddSeparatorItem();
96 }
97
98 popupmenu->AddItem(preferences);
99 popupmenu->AddItem(about);
100 }
101
MouseDown(BPoint point)102 void PulseView::MouseDown(BPoint point) {
103 BPoint cursor;
104 uint32 buttons;
105 MakeFocus(true);
106 GetMouse(&cursor, &buttons, true);
107
108 if (buttons & B_SECONDARY_MOUSE_BUTTON) {
109 ConvertToScreen(&point);
110 // Use the asynchronous version so we don't interfere with
111 // the window responding to Pulse() events
112 popupmenu->Go(point, true, false, true);
113 }
114 }
115
Update()116 void PulseView::Update() {
117 system_info sys_info;
118 get_system_info(&sys_info);
119 bigtime_t now = system_time();
120
121 cpu_info* cpuInfos = new cpu_info[sys_info.cpu_count];
122 get_cpu_info(0, sys_info.cpu_count, cpuInfos);
123
124 // Calculate work done since last call to Update() for each CPU
125 for (unsigned int x = 0; x < sys_info.cpu_count; x++) {
126 double cpu_time = (double)(cpuInfos[x].active_time - prev_active[x])
127 / (now - prev_time);
128 prev_active[x] = cpuInfos[x].active_time;
129 if (cpu_time < 0) cpu_time = 0;
130 if (cpu_time > 1) cpu_time = 1;
131 cpu_times[x] = cpu_time;
132
133 if (sys_info.cpu_count >= 2) {
134 if (!_kern_cpu_enabled(x) && cpu_menu_items[x]->IsMarked())
135 cpu_menu_items[x]->SetMarked(false);
136 if (_kern_cpu_enabled(x) && !cpu_menu_items[x]->IsMarked())
137 cpu_menu_items[x]->SetMarked(true);
138 }
139 }
140 prev_time = now;
141
142 delete[] cpuInfos;
143 }
144
ChangeCPUState(BMessage * message)145 void PulseView::ChangeCPUState(BMessage *message) {
146 int which = message->FindInt32("which");
147
148 if (!LastEnabledCPU(which)) {
149 _kern_set_cpu_enabled(which, (int)!cpu_menu_items[which]->IsMarked());
150 } else {
151 BAlert *alert = new BAlert(B_TRANSLATE("Info"),
152 B_TRANSLATE("You can't disable the last active CPU."),
153 B_TRANSLATE("OK"));
154 alert->SetFlags(alert->Flags() | B_CLOSE_ON_ESCAPE);
155 alert->Go(NULL);
156 }
157 }
158
~PulseView()159 PulseView::~PulseView() {
160 if (popupmenu != NULL) delete popupmenu;
161 if (cpu_menu_items != NULL) delete[] cpu_menu_items;
162
163 delete[] prev_active;
164 delete[] cpu_times;
165 }
166
167