1 /**
2 * collectd - src/apple_sensors.c
3 * Copyright (C) 2006,2007 Florian octo Forster
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Florian octo Forster <octo at collectd.org>
25 **/
27 #include "collectd.h"
29 #include "common.h"
30 #include "plugin.h"
32 #if HAVE_CTYPE_H
33 # include <ctype.h>
34 #endif
36 #if HAVE_MACH_MACH_TYPES_H
37 # include <mach/mach_types.h>
38 #endif
39 #if HAVE_MACH_MACH_INIT_H
40 # include <mach/mach_init.h>
41 #endif
42 #if HAVE_MACH_MACH_ERROR_H
43 # include <mach/mach_error.h>
44 #endif
45 #if HAVE_MACH_MACH_PORT_H
46 # include <mach/mach_port.h>
47 #endif
48 #if HAVE_COREFOUNDATION_COREFOUNDATION_H
49 # include <CoreFoundation/CoreFoundation.h>
50 #endif
51 #if HAVE_IOKIT_IOKITLIB_H
52 # include <IOKit/IOKitLib.h>
53 #endif
54 #if HAVE_IOKIT_IOTYPES_H
55 # include <IOKit/IOTypes.h>
56 #endif
58 static mach_port_t io_master_port = MACH_PORT_NULL;
60 static int as_init (void)
61 {
62 kern_return_t status;
64 if (io_master_port != MACH_PORT_NULL)
65 {
66 mach_port_deallocate (mach_task_self (),
67 io_master_port);
68 io_master_port = MACH_PORT_NULL;
69 }
71 status = IOMasterPort (MACH_PORT_NULL, &io_master_port);
72 if (status != kIOReturnSuccess)
73 {
74 ERROR ("IOMasterPort failed: %s",
75 mach_error_string (status));
76 io_master_port = MACH_PORT_NULL;
77 return (-1);
78 }
80 return (0);
81 }
83 static void as_submit (const char *type, const char *type_instance,
84 double val)
85 {
86 value_list_t vl = VALUE_LIST_INIT;
88 vl.values = &(value_t) { .gauge = val };
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 if (!io_master_port || (io_master_port == MACH_PORT_NULL))
112 return (-1);
114 status = IOServiceGetMatchingServices (io_master_port,
115 IOServiceNameMatching("IOHWSensor"),
116 &iterator);
117 if (status != kIOReturnSuccess)
118 {
119 ERROR ("IOServiceGetMatchingServices failed: %s",
120 mach_error_string (status));
121 return (-1);
122 }
124 while ((io_obj = IOIteratorNext (iterator)))
125 {
126 prop_dict = NULL;
127 status = IORegistryEntryCreateCFProperties (io_obj,
128 &prop_dict,
129 kCFAllocatorDefault,
130 kNilOptions);
131 if (status != kIOReturnSuccess)
132 {
133 DEBUG ("IORegistryEntryCreateCFProperties failed: %s",
134 mach_error_string (status));
135 continue;
136 }
138 /* Copy the sensor type. */
139 property = NULL;
140 if (!CFDictionaryGetValueIfPresent (prop_dict,
141 CFSTR ("type"),
142 &property))
143 continue;
144 if (CFGetTypeID (property) != CFStringGetTypeID ())
145 continue;
146 if (!CFStringGetCString (property,
147 type, sizeof (type),
148 kCFStringEncodingASCII))
149 continue;
150 type[sizeof (type) - 1] = '\0';
152 /* Copy the sensor location. This will be used as `instance'. */
153 property = NULL;
154 if (!CFDictionaryGetValueIfPresent (prop_dict,
155 CFSTR ("location"),
156 &property))
157 continue;
158 if (CFGetTypeID (property) != CFStringGetTypeID ())
159 continue;
160 if (!CFStringGetCString (property,
161 inst, sizeof (inst),
162 kCFStringEncodingASCII))
163 continue;
164 inst[sizeof (inst) - 1] = '\0';
165 for (int i = 0; i < 128; i++)
166 {
167 if (inst[i] == '\0')
168 break;
169 else if (isalnum (inst[i]))
170 inst[i] = (char) tolower (inst[i]);
171 else
172 inst[i] = '_';
173 }
175 /* Get the actual value. Some computation, based on the `type'
176 * is neccessary. */
177 property = NULL;
178 if (!CFDictionaryGetValueIfPresent (prop_dict,
179 CFSTR ("current-value"),
180 &property))
181 continue;
182 if (CFGetTypeID (property) != CFNumberGetTypeID ())
183 continue;
184 if (!CFNumberGetValue (property,
185 kCFNumberIntType,
186 &value_int))
187 continue;
189 /* Found e.g. in the 1.5GHz PowerBooks */
190 if (strcmp (type, "temperature") == 0)
191 {
192 value_double = ((double) value_int) / 65536.0;
193 sstrncpy (type, "temperature", sizeof (type));
194 }
195 else if (strcmp (type, "temp") == 0)
196 {
197 value_double = ((double) value_int) / 10.0;
198 sstrncpy (type, "temperature", sizeof (type));
199 }
200 else if (strcmp (type, "fanspeed") == 0)
201 {
202 value_double = ((double) value_int) / 65536.0;
203 sstrncpy (type, "fanspeed", sizeof (type));
204 }
205 else if (strcmp (type, "voltage") == 0)
206 {
207 /* Leave this to the battery plugin. */
208 continue;
209 }
210 else if (strcmp (type, "adc") == 0)
211 {
212 value_double = ((double) value_int) / 10.0;
213 sstrncpy (type, "fanspeed", sizeof (type));
214 }
215 else
216 {
217 DEBUG ("apple_sensors: Read unknown sensor type: %s",
218 type);
219 value_double = (double) value_int;
220 }
222 as_submit (type, inst, value_double);
224 CFRelease (prop_dict);
225 IOObjectRelease (io_obj);
226 } /* while (iterator) */
228 IOObjectRelease (iterator);
230 return (0);
231 } /* int as_read */
233 void module_register (void)
234 {
235 plugin_register_init ("apple_sensors", as_init);
236 plugin_register_read ("apple_sensors", as_read);
237 } /* void module_register */