summaryrefslogtreecommitdiffstats
path: root/Process.h
blob: 1a88a632dfb40e7b8bbb1514a462f07928a20595 (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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
#ifndef HEADER_Process
#define HEADER_Process
/*
htop - Process.h
(C) 2004-2015 Hisham H. Muhammad
(C) 2020 Red Hat, Inc.  All Rights Reserved.
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
*/

#include <stdbool.h>
#include <stdint.h>
#include <sys/types.h>

#include "Object.h"
#include "ProcessField.h"
#include "RichString.h"


#define PROCESS_FLAG_IO 0x0001
#define DEFAULT_HIGHLIGHT_SECS 5

typedef enum ProcessField_ {
   NULL_PROCESSFIELD = 0,
   PID = 1,
   COMM = 2,
   STATE = 3,
   PPID = 4,
   PGRP = 5,
   SESSION = 6,
   TTY_NR = 7,
   TPGID = 8,
   MINFLT = 10,
   MAJFLT = 12,
   PRIORITY = 18,
   NICE = 19,
   STARTTIME = 21,
   PROCESSOR = 38,
   M_VIRT = 39,
   M_RESIDENT = 40,
   ST_UID = 46,
   PERCENT_CPU = 47,
   PERCENT_MEM = 48,
   USER = 49,
   TIME = 50,
   NLWP = 51,
   TGID = 52,
   PERCENT_NORM_CPU = 53,

   /* Platform specific fields, defined in ${platform}/ProcessField.h */
   PLATFORM_PROCESS_FIELDS

   LAST_PROCESSFIELD
} ProcessField;

struct Settings_;

typedef struct Process_ {
   Object super;

   const struct ProcessList_* processList;
   const struct Settings_* settings;

   unsigned long long int time;
   pid_t pid;
   pid_t ppid;
   pid_t tgid;
   char* comm;  /* use Process_getCommand() for Command actually displayed */
   int commLen;
   int indent;

   int basenameOffset;
   bool updated;

   char state;
   bool tag;
   bool showChildren;
   bool show;
   bool wasShown;
   unsigned int pgrp;
   unsigned int session;
   unsigned int tty_nr;
   int tpgid;
   uid_t st_uid;
   unsigned long int flags;
   int processor;

   float percent_cpu;
   float percent_mem;
   const char* user;

   long int priority;
   long int nice;
   long int nlwp;
   char starttime_show[8];
   time_t starttime_ctime;

   long m_virt;
   long m_resident;

   int exit_signal;

   time_t seenTs;
   time_t tombTs;

   unsigned long int minflt;
   unsigned long int majflt;

   unsigned int tree_left;
   unsigned int tree_right;
   unsigned int tree_depth;
   unsigned int tree_index;
} Process;

typedef struct ProcessFieldData_ {
   const char* name;
   const char* title;
   const char* description;
   uint32_t flags;
   bool pidColumn;
} ProcessFieldData;

// Implemented in platform-specific code:
void Process_writeField(const Process* this, RichString* str, ProcessField field);
int Process_compare(const void* v1, const void* v2);
void Process_delete(Object* cast);
bool Process_isThread(const Process* this);
extern const ProcessFieldData Process_fields[LAST_PROCESSFIELD];
#define PROCESS_MAX_PID_DIGITS 19
extern int Process_pidDigits;

typedef Process*(*Process_New)(const struct Settings_*);
typedef void (*Process_WriteField)(const Process*, RichString*, ProcessField);
typedef int (*Process_CompareByKey)(const Process*, const Process*, ProcessField);
typedef const char* (*Process_GetCommandStr)(const Process*);

typedef struct ProcessClass_ {
   const ObjectClass super;
   const Process_WriteField writeField;
   const Process_CompareByKey compareByKey;
   const Process_GetCommandStr getCommandStr;
} ProcessClass;

#define As_Process(this_)                              ((const ProcessClass*)((this_)->super.klass))

#define Process_getCommand(this_)                      (As_Process(this_)->getCommandStr ? As_Process(this_)->getCommandStr((const Process*)(this_)) : ((const Process*)(this_))->comm)
#define Process_compareByKey(p1_, p2_, key_)           (As_Process(p1_)->compareByKey ? (As_Process(p1_)->compareByKey(p1_, p2_, key_)) : Process_compareByKey_Base(p1_, p2_, key_))

static inline pid_t Process_getParentPid(const Process* this) {
   return this->tgid == this->pid ? this->ppid : this->tgid;
}

static inline bool Process_isChildOf(const Process* this, pid_t pid) {
   return pid == Process_getParentPid(this);
}

#define Process_sortState(state) ((state) == 'I' ? 0x100 : (state))


#define ONE_K 1024UL
#define ONE_M (ONE_K * ONE_K)
#define ONE_G (ONE_M * ONE_K)
#define ONE_T (1ULL * ONE_G * ONE_K)

#define ONE_DECIMAL_K 1000UL
#define ONE_DECIMAL_M (ONE_DECIMAL_K * ONE_DECIMAL_K)
#define ONE_DECIMAL_G (ONE_DECIMAL_M * ONE_DECIMAL_K)
#define ONE_DECIMAL_T (1ULL * ONE_DECIMAL_G * ONE_DECIMAL_K)

void Process_setupColumnWidths(void);

void Process_humanNumber(RichString* str, unsigned long long number, bool coloring);

void Process_colorNumber(RichString* str, unsigned long long number, bool coloring);

void Process_printTime(RichString* str, unsigned long long totalHundredths);

void Process_fillStarttimeBuffer(Process* this);

void Process_outputRate(RichString* str, char* buffer, size_t n, double rate, int coloring);

void Process_printLeftAlignedField(RichString* str, int attr, const char* content, unsigned int width);

void Process_display(const Object* cast, RichString* out);

void Process_done(Process* this);

extern const ProcessClass Process_class;

void Process_init(Process* this, const struct Settings_* settings);

void Process_toggleTag(Process* this);

bool Process_isNew(const Process* this);

bool Process_isTomb(const Process* this);

bool Process_setPriority(Process* this, int priority);

bool Process_changePriorityBy(Process* this, Arg delta);

bool Process_sendSignal(Process* this, Arg sgn);

int Process_pidCompare(const void* v1, const void* v2);

int Process_compareByKey_Base(const Process* p1, const Process* p2, ProcessField key);

#endif

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