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
|
/*
** Zabbix
** Copyright (C) 2001-2019 Zabbix SIA
**
** 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.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include "common.h"
#include "sysinfo.h"
/* Solaris. */
#if !defined(HAVE_SYSINFO_FREESWAP)
#ifdef HAVE_SYS_SWAP_SWAPTABLE
static void get_swapinfo(double *total, double *fr)
{
int cnt, i, page_size;
/* Support for >2Gb */
/* int t, f;*/
double t, f;
struct swaptable *swt;
struct swapent *ste;
static char path[256];
/* get total number of swap entries */
cnt = swapctl(SC_GETNSWP, 0);
/* allocate enough space to hold count + n swapents */
swt = (struct swaptable *)malloc(sizeof(int) +
cnt * sizeof(struct swapent));
if (swt == NULL)
{
*total = 0;
*fr = 0;
return;
}
swt->swt_n = cnt;
/* fill in ste_path pointers: we don't care about the paths, so we
point them all to the same buffer */
ste = &(swt->swt_ent[0]);
i = cnt;
while (--i >= 0)
{
ste++->ste_path = path;
}
/* grab all swap info */
swapctl(SC_LIST, swt);
/* walk through the structs and sum up the fields */
t = f = 0;
ste = &(swt->swt_ent[0]);
i = cnt;
while (--i >= 0)
{
/* don't count slots being deleted */
if (!(ste->ste_flags & ST_INDEL) &&
!(ste->ste_flags & ST_DOINGDEL))
{
t += ste->ste_pages;
f += ste->ste_free;
}
ste++;
}
page_size=getpagesize();
/* fill in the results */
*total = page_size*t;
*fr = page_size*f;
free(swt);
}
#endif
#endif
static int SYSTEM_SWAP_USED(AGENT_RESULT *result)
{
#ifdef HAVE_SYSINFO_FREESWAP
struct sysinfo info;
if (0 == sysinfo(&info))
{
#ifdef HAVE_SYSINFO_MEM_UNIT
SET_UI64_RESULT(result, ((zbx_uint64_t)info.totalswap - (zbx_uint64_t)info.freeswap) *
(zbx_uint64_t)info.mem_unit);
#else
SET_UI64_RESULT(result, info.totalswap - info.freeswap);
#endif
return SYSINFO_RET_OK;
}
else
return SYSINFO_RET_FAIL;
/* Solaris */
#else
#ifdef HAVE_SYS_SWAP_SWAPTABLE
double swaptotal, swapfree;
get_swapinfo(&swaptotal, &swapfree);
SET_UI64_RESULT(result, swaptotal - swapfree);
return SYSINFO_RET_OK;
#else
return SYSINFO_RET_FAIL;
#endif
#endif
}
static int SYSTEM_SWAP_FREE(AGENT_RESULT *result)
{
#ifdef HAVE_SYSINFO_FREESWAP
struct sysinfo info;
if (0 == sysinfo(&info))
{
#ifdef HAVE_SYSINFO_MEM_UNIT
SET_UI64_RESULT(result, (zbx_uint64_t)info.freeswap * (zbx_uint64_t)info.mem_unit);
#else
SET_UI64_RESULT(result, info.freeswap);
#endif
return SYSINFO_RET_OK;
}
else
return SYSINFO_RET_FAIL;
/* Solaris */
#else
#ifdef HAVE_SYS_SWAP_SWAPTABLE
double swaptotal,swapfree;
get_swapinfo(&swaptotal,&swapfree);
SET_UI64_RESULT(result, swapfree);
return SYSINFO_RET_OK;
#else
return SYSINFO_RET_FAIL;
#endif
#endif
}
static int SYSTEM_SWAP_TOTAL(AGENT_RESULT *result)
{
#ifdef HAVE_SYSINFO_TOTALSWAP
struct sysinfo info;
if (0 == sysinfo(&info))
{
#ifdef HAVE_SYSINFO_MEM_UNIT
SET_UI64_RESULT(result, (zbx_uint64_t)info.totalswap * (zbx_uint64_t)info.mem_unit);
#else
SET_UI64_RESULT(result, info.totalswap);
#endif
return SYSINFO_RET_OK;
}
else
return SYSINFO_RET_FAIL;
/* Solaris */
#else
#ifdef HAVE_SYS_SWAP_SWAPTABLE
double swaptotal,swapfree;
get_swapinfo(&swaptotal,&swapfree);
SET_UI64_RESULT(result, swaptotal);
return SYSINFO_RET_OK;
#else
return SYSINFO_RET_FAIL;
#endif
#endif
}
static int SYSTEM_SWAP_PFREE(AGENT_RESULT *result)
{
AGENT_RESULT result_tmp;
zbx_uint64_t tot_val = 0;
zbx_uint64_t free_val = 0;
init_result(&result_tmp);
if (SYSINFO_RET_OK != SYSTEM_SWAP_TOTAL(&result_tmp) || !(result_tmp.type & AR_UINT64))
return SYSINFO_RET_FAIL;
tot_val = result_tmp.ui64;
/* Check for division by zero */
if (0 == tot_val)
{
free_result(&result_tmp);
return SYSINFO_RET_FAIL;
}
if (SYSINFO_RET_OK != SYSTEM_SWAP_FREE(&result_tmp) || !(result_tmp.type & AR_UINT64))
return SYSINFO_RET_FAIL;
free_val = result_tmp.ui64;
free_result(&result_tmp);
SET_DBL_RESULT(result, (100.0 * (double)free_val) / (double)tot_val);
return SYSINFO_RET_OK;
}
static int SYSTEM_SWAP_PUSED(AGENT_RESULT *result)
{
AGENT_RESULT result_tmp;
zbx_uint64_t tot_val = 0;
zbx_uint64_t free_val = 0;
init_result(&result_tmp);
if (SYSINFO_RET_OK != SYSTEM_SWAP_TOTAL(&result_tmp) || !(result_tmp.type & AR_UINT64))
return SYSINFO_RET_FAIL;
tot_val = result_tmp.ui64;
/* Check for division by zero */
if (0 == tot_val)
{
free_result(&result_tmp);
return SYSINFO_RET_FAIL;
}
if (SYSINFO_RET_OK != SYSTEM_SWAP_FREE(&result_tmp) || !(result_tmp.type & AR_UINT64))
return SYSINFO_RET_FAIL;
free_val = result_tmp.ui64;
free_result(&result_tmp);
SET_DBL_RESULT(result, 100.0 - (100.0 * (double)free_val) / (double)tot_val);
return SYSINFO_RET_OK;
}
int SYSTEM_SWAP_SIZE(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *swapdev, *mode;
int ret = SYSINFO_RET_FAIL;
if (2 < request->nparam)
return SYSINFO_RET_FAIL;
swapdev = get_rparam(request, 0);
mode = get_rparam(request, 1);
if (NULL != swapdev && '\0' != *swapdev && 0 != strcmp(swapdev, "all"))
return SYSINFO_RET_FAIL;
if (NULL == mode || '\0' == *mode || 0 == strcmp(mode, "free"))
ret = SYSTEM_SWAP_FREE(result);
else if (0 == strcmp(mode, "used"))
ret = SYSTEM_SWAP_USED(result);
else if (0 == strcmp(mode, "total"))
ret = SYSTEM_SWAP_TOTAL(result);
else if (0 == strcmp(mode, "pfree"))
ret = SYSTEM_SWAP_PFREE(result);
else if (0 == strcmp(mode, "pused"))
ret = SYSTEM_SWAP_PUSED(result);
else
ret = SYSINFO_RET_FAIL;
return ret;
}
|