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
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
|
/*
* Linux /proc/<pid>/... Clusters
*
* Copyright (c) 2013 Red Hat.
* Copyright (c) 2000,2004 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#ifndef _PROC_PID_H
#define _PROC_PID_H
/*
* /proc/<pid>/stat metrics
*/
#define PROC_PID_STAT_PID 0
#define PROC_PID_STAT_CMD 1
#define PROC_PID_STAT_STATE 2
#define PROC_PID_STAT_PPID 3
#define PROC_PID_STAT_PGRP 4
#define PROC_PID_STAT_SESSION 5
#define PROC_PID_STAT_TTY 6
#define PROC_PID_STAT_TTY_PGRP 7
#define PROC_PID_STAT_FLAGS 8
#define PROC_PID_STAT_MINFLT 9
#define PROC_PID_STAT_CMIN_FLT 10
#define PROC_PID_STAT_MAJ_FLT 11
#define PROC_PID_STAT_CMAJ_FLT 12
#define PROC_PID_STAT_UTIME 13
#define PROC_PID_STAT_STIME 14
#define PROC_PID_STAT_CUTIME 15
#define PROC_PID_STAT_CSTIME 16
#define PROC_PID_STAT_PRIORITY 17
#define PROC_PID_STAT_NICE 18
#define PROC_PID_STAT_REMOVED 19
#define PROC_PID_STAT_IT_REAL_VALUE 20
#define PROC_PID_STAT_START_TIME 21
#define PROC_PID_STAT_VSIZE 22
#define PROC_PID_STAT_RSS 23
#define PROC_PID_STAT_RSS_RLIM 24
#define PROC_PID_STAT_START_CODE 25
#define PROC_PID_STAT_END_CODE 26
#define PROC_PID_STAT_START_STACK 27
#define PROC_PID_STAT_ESP 28
#define PROC_PID_STAT_EIP 29
#define PROC_PID_STAT_SIGNAL 30
#define PROC_PID_STAT_BLOCKED 31
#define PROC_PID_STAT_SIGIGNORE 32
#define PROC_PID_STAT_SIGCATCH 33
#define PROC_PID_STAT_WCHAN 34
#define PROC_PID_STAT_NSWAP 35
#define PROC_PID_STAT_CNSWAP 36
#define PROC_PID_STAT_EXIT_SIGNAL 37
#define PROC_PID_STAT_PROCESSOR 38
#define PROC_PID_STAT_TTYNAME 39
#define PROC_PID_STAT_WCHAN_SYMBOL 40
#define PROC_PID_STAT_PSARGS 41
/* number of fields in proc_pid_stat_entry_t */
#define NR_PROC_PID_STAT 42
/*
* metrics in /proc/<pid>/status
* Added by Mike Mason <mmlnx@us.ibm.com>
*/
#define PROC_PID_STATUS_UID 0
#define PROC_PID_STATUS_EUID 1
#define PROC_PID_STATUS_SUID 2
#define PROC_PID_STATUS_FSUID 3
#define PROC_PID_STATUS_GID 4
#define PROC_PID_STATUS_EGID 5
#define PROC_PID_STATUS_SGID 6
#define PROC_PID_STATUS_FSGID 7
#define PROC_PID_STATUS_UID_NM 8
#define PROC_PID_STATUS_EUID_NM 9
#define PROC_PID_STATUS_SUID_NM 10
#define PROC_PID_STATUS_FSUID_NM 11
#define PROC_PID_STATUS_GID_NM 12
#define PROC_PID_STATUS_EGID_NM 13
#define PROC_PID_STATUS_SGID_NM 14
#define PROC_PID_STATUS_FSGID_NM 15
#define PROC_PID_STATUS_SIGNAL 16
#define PROC_PID_STATUS_BLOCKED 17
#define PROC_PID_STATUS_SIGIGNORE 18
#define PROC_PID_STATUS_SIGCATCH 19
#define PROC_PID_STATUS_VMSIZE 20
#define PROC_PID_STATUS_VMLOCK 21
#define PROC_PID_STATUS_VMRSS 22
#define PROC_PID_STATUS_VMDATA 23
#define PROC_PID_STATUS_VMSTACK 24
#define PROC_PID_STATUS_VMEXE 25
#define PROC_PID_STATUS_VMLIB 26
#define PROC_PID_STATUS_VMSWAP 27
#define PROC_PID_STATUS_THREADS 28
/* number of metrics from /proc/<pid>/status */
#define NR_PROC_PID_STATUS 27
/*
* metrics in /proc/<pid>/statm & /proc/<pid>/maps
*/
#define PROC_PID_STATM_SIZE 0
#define PROC_PID_STATM_RSS 1
#define PROC_PID_STATM_SHARE 2
#define PROC_PID_STATM_TEXTRS 3
#define PROC_PID_STATM_LIBRS 4
#define PROC_PID_STATM_DATRS 5
#define PROC_PID_STATM_DIRTY 6
#define PROC_PID_STATM_MAPS 7
/* number of fields in proc_pid_statm_entry_t */
#define NR_PROC_PID_STATM 8
/*
* metrics in /proc/<pid>/schedstat
*/
#define PROC_PID_SCHED_CPUTIME 0
#define PROC_PID_SCHED_RUNDELAY 1
#define PROC_PID_SCHED_PCOUNT 2
#define NR_PROC_PID_SCHED 3
/*
* metrics in /proc/<pid>/io
*/
#define PROC_PID_IO_RCHAR 0
#define PROC_PID_IO_WCHAR 1
#define PROC_PID_IO_SYSCR 2
#define PROC_PID_IO_SYSCW 3
#define PROC_PID_IO_READ_BYTES 4
#define PROC_PID_IO_WRITE_BYTES 5
#define PROC_PID_IO_CANCELLED_BYTES 6
/*
* metrics in /proc/<pid>/fd
*/
#define PROC_PID_FD_COUNT 0
/*
* metrics in /proc/<pid>/cgroup
*/
#define PROC_PID_CGROUP 0
/*
* metrics in /proc/<pid>/attr/current
*/
#define PROC_PID_LABEL 0
typedef struct { /* /proc/<pid>/status */
char *uid;
char *gid;
char *sigpnd;
char *sigblk;
char *sigign;
char *sigcgt;
char *vmsize;
char *vmlck;
char *vmrss;
char *vmdata;
char *vmstk;
char *vmexe;
char *vmlib;
char *vmswap;
char *threads;
} status_lines_t;
typedef struct { /* /proc/<pid>/io */
char *rchar;
char *wchar;
char *syscr;
char *syscw;
char *readb;
char *writeb;
char *cancel;
} io_lines_t;
enum {
PROC_PID_FLAG_VALID = 1<<0,
PROC_PID_FLAG_STAT_FETCHED = 1<<1,
PROC_PID_FLAG_STATM_FETCHED = 1<<2,
PROC_PID_FLAG_MAPS_FETCHED = 1<<3,
PROC_PID_FLAG_STATUS_FETCHED = 1<<4,
PROC_PID_FLAG_SCHEDSTAT_FETCHED = 1<<5,
PROC_PID_FLAG_IO_FETCHED = 1<<6,
PROC_PID_FLAG_WCHAN_FETCHED = 1<<7,
PROC_PID_FLAG_FD_FETCHED = 1<<8,
PROC_PID_FLAG_CGROUP_FETCHED = 1<<9,
PROC_PID_FLAG_LABEL_FETCHED = 1<<10,
};
typedef struct {
int id; /* pid, hash key and internal instance id */
int flags; /* combinations of PROC_PID_FLAG_* values */
char *name; /* external instance name (<pid> cmdline) */
/* /proc/<pid>/stat cluster */
int stat_buflen;
char *stat_buf;
/* /proc/<pid>/statm and /proc/<pid>/maps cluster */
int statm_buflen;
char *statm_buf;
int maps_buflen;
char *maps_buf;
/* /proc/<pid>/status cluster */
int status_buflen;
char *status_buf;
status_lines_t status_lines;
/* /proc/<pid>/schedstat cluster */
int schedstat_buflen;
char *schedstat_buf;
/* /proc/<pid>/io cluster */
int io_buflen;
char *io_buf;
io_lines_t io_lines;
/* /proc/<pid>/wchan cluster */
int wchan_buflen;
char *wchan_buf;
/* /proc/<pid>/fd cluster */
int fd_buflen;
uint32_t fd_count;
char *fd_buf;
/* /proc/<pid>/cgroup cluster */
int cgroup_id;
/* /proc/<pid>/attr/current cluster */
int label_id;
} proc_pid_entry_t;
typedef struct {
__pmHashCtl pidhash; /* hash table for current pids */
pmdaIndom *indom; /* instance domain table */
} proc_pid_t;
typedef struct {
int count; /* number of processes in the list */
int size; /* size of the buffer (pids) allocated */
int *pids; /* array of process identifiers */
int threads; /* /proc/PID/{xxx,task/PID/xxx} flag */
} proc_pid_list_t;
/* refresh the proc indom, reset all "fetched" flags */
extern int refresh_proc_pid(proc_pid_t *, int, const char *);
/* fetch a proc/<pid>/stat entry for pid */
extern proc_pid_entry_t *fetch_proc_pid_stat(int, proc_pid_t *);
/* fetch a proc/<pid>/statm entry for pid */
extern proc_pid_entry_t *fetch_proc_pid_statm(int, proc_pid_t *);
/* fetch a proc/<pid>/status entry for pid */
extern proc_pid_entry_t *fetch_proc_pid_status(int, proc_pid_t *);
/* fetch a proc/<pid>/maps entry for pid */
extern proc_pid_entry_t *fetch_proc_pid_maps(int, proc_pid_t *);
/* fetch a proc/<pid>/schedstat entry for pid */
extern proc_pid_entry_t *fetch_proc_pid_schedstat(int, proc_pid_t *);
/* fetch a proc/<pid>/io entry for pid */
extern proc_pid_entry_t *fetch_proc_pid_io(int, proc_pid_t *);
/* fetch a proc/<pid>/fd entry for pid */
extern proc_pid_entry_t *fetch_proc_pid_fd(int, proc_pid_t *);
/* fetch a proc/<pid>/cgroup entry for pid */
extern proc_pid_entry_t *fetch_proc_pid_cgroup(int, proc_pid_t *);
/* fetch a proc/<pid>/attr/current entry for pid */
extern proc_pid_entry_t *fetch_proc_pid_label(int, proc_pid_t *);
/* extract the ith space separated field from a buffer */
extern char *_pm_getfield(char *, int);
#endif /* _PROC_PID_H */
|
