1 /**
2 * collectd - src/apple_sensors.c
3 * Copyright (C) 2006,2007 Florian octo Forster
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 *
18 * Authors:
19 * Florian octo Forster <octo at verplant.org>
20 **/
22 #include "collectd.h"
23 #include "common.h"
24 #include "plugin.h"
26 #if HAVE_CTYPE_H
27 # include <ctype.h>
28 #endif
30 #if HAVE_MACH_MACH_TYPES_H
31 # include <mach/mach_types.h>
32 #endif
33 #if HAVE_MACH_MACH_INIT_H
34 # include <mach/mach_init.h>
35 #endif
36 #if HAVE_MACH_MACH_ERROR_H
37 # include <mach/mach_error.h>
38 #endif
39 #if HAVE_MACH_MACH_PORT_H
40 # include <mach/mach_port.h>
41 #endif
42 #if HAVE_COREFOUNDATION_COREFOUNDATION_H
43 # include <CoreFoundation/CoreFoundation.h>
44 #endif
45 #if HAVE_IOKIT_IOKITLIB_H
46 # include <IOKit/IOKitLib.h>
47 #endif
48 #if HAVE_IOKIT_IOTYPES_H
49 # include <IOKit/IOTypes.h>
50 #endif
52 static mach_port_t io_master_port = MACH_PORT_NULL;
54 static int as_init (void)
55 {
56 kern_return_t status;
58 if (io_master_port != MACH_PORT_NULL)
59 {
60 mach_port_deallocate (mach_task_self (),
61 io_master_port);
62 io_master_port = MACH_PORT_NULL;
63 }
65 status = IOMasterPort (MACH_PORT_NULL, &io_master_port);
66 if (status != kIOReturnSuccess)
67 {
68 ERROR ("IOMasterPort failed: %s",
69 mach_error_string (status));
70 io_master_port = MACH_PORT_NULL;
71 return (-1);
72 }
74 return (0);
75 }
77 static void as_submit (const char *type, const char *type_instance,
78 double val)
79 {
80 value_t values[1];
81 value_list_t vl = VALUE_LIST_INIT;
83 DEBUG ("type = %s; type_instance = %s; val = %f;",
84 type, type_instance, val);
86 values[0].gauge = val;
88 vl.values = values;
89 vl.values_len = 1;
90 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
91 sstrncpy (vl.plugin, "apple_sensors", sizeof (vl.plugin));
92 sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
93 sstrncpy (vl.type, type, sizeof (vl.type));
94 sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
96 plugin_dispatch_values (&vl);
97 }
99 static int as_read (void)
100 {
101 kern_return_t status;
102 io_iterator_t iterator;
103 io_object_t io_obj;
104 CFMutableDictionaryRef prop_dict;
105 CFTypeRef property;
107 char type[128];
108 char inst[128];
109 int value_int;
110 double value_double;
111 int i;
113 if (!io_master_port || (io_master_port == MACH_PORT_NULL))
114 return (-1);
116 status = IOServiceGetMatchingServices (io_master_port,
117 IOServiceNameMatching("IOHWSensor"),
118 &iterator);
119 if (status != kIOReturnSuccess)
120 {
121 ERROR ("IOServiceGetMatchingServices failed: %s",
122 mach_error_string (status));
123 return (-1);
124 }
126 while ((io_obj = IOIteratorNext (iterator)))
127 {
128 prop_dict = NULL;
129 status = IORegistryEntryCreateCFProperties (io_obj,
130 &prop_dict,
131 kCFAllocatorDefault,
132 kNilOptions);
133 if (status != kIOReturnSuccess)
134 {
135 DEBUG ("IORegistryEntryCreateCFProperties failed: %s",
136 mach_error_string (status));
137 continue;
138 }
140 /* Copy the sensor type. */
141 property = NULL;
142 if (!CFDictionaryGetValueIfPresent (prop_dict,
143 CFSTR ("type"),
144 &property))
145 continue;
146 if (CFGetTypeID (property) != CFStringGetTypeID ())
147 continue;
148 if (!CFStringGetCString (property,
149 type, sizeof (type),
150 kCFStringEncodingASCII))
151 continue;
152 type[sizeof (type) - 1] = '\0';
154 /* Copy the sensor location. This will be used as `instance'. */
155 property = NULL;
156 if (!CFDictionaryGetValueIfPresent (prop_dict,
157 CFSTR ("location"),
158 &property))
159 continue;
160 if (CFGetTypeID (property) != CFStringGetTypeID ())
161 continue;
162 if (!CFStringGetCString (property,
163 inst, sizeof (inst),
164 kCFStringEncodingASCII))
165 continue;
166 inst[sizeof (inst) - 1] = '\0';
167 for (i = 0; i < 128; i++)
168 {
169 if (inst[i] == '\0')
170 break;
171 else if (isalnum (inst[i]))
172 inst[i] = (char) tolower (inst[i]);
173 else
174 inst[i] = '_';
175 }
177 /* Get the actual value. Some computation, based on the `type'
178 * is neccessary. */
179 property = NULL;
180 if (!CFDictionaryGetValueIfPresent (prop_dict,
181 CFSTR ("current-value"),
182 &property))
183 continue;
184 if (CFGetTypeID (property) != CFNumberGetTypeID ())
185 continue;
186 if (!CFNumberGetValue (property,
187 kCFNumberIntType,
188 &value_int))
189 continue;
191 /* Found e.g. in the 1.5GHz PowerBooks */
192 if (strcmp (type, "temperature") == 0)
193 {
194 value_double = ((double) value_int) / 65536.0;
195 sstrncpy (type, "temperature", sizeof (type));
196 }
197 else if (strcmp (type, "temp") == 0)
198 {
199 value_double = ((double) value_int) / 10.0;
200 sstrncpy (type, "temperature", sizeof (type));
201 }
202 else if (strcmp (type, "fanspeed") == 0)
203 {
204 value_double = ((double) value_int) / 65536.0;
205 sstrncpy (type, "fanspeed", sizeof (type));
206 }
207 else if (strcmp (type, "voltage") == 0)
208 {
209 /* Leave this to the battery plugin. */
210 continue;
211 }
212 else if (strcmp (type, "adc") == 0)
213 {
214 value_double = ((double) value_int) / 10.0;
215 sstrncpy (type, "fanspeed", sizeof (type));
216 }
217 else
218 {
219 DEBUG ("apple_sensors: Read unknown sensor type: %s",
220 type);
221 value_double = (double) value_int;
222 }
224 as_submit (type, inst, value_double);
226 CFRelease (prop_dict);
227 IOObjectRelease (io_obj);
228 } /* while (iterator) */
230 IOObjectRelease (iterator);
232 return (0);
233 } /* int as_read */
235 void module_register (void)
236 {
237 plugin_register_init ("apple_sensors", as_init);
238 plugin_register_read ("apple_sensors", as_read);
239 } /* void module_register */