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_t values[1];
87 value_list_t vl = VALUE_LIST_INIT;
89 DEBUG ("type = %s; type_instance = %s; val = %f;",
90 type, type_instance, val);
92 values[0].gauge = val;
94 vl.values = values;
95 vl.values_len = 1;
96 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
97 sstrncpy (vl.plugin, "apple_sensors", sizeof (vl.plugin));
98 sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
99 sstrncpy (vl.type, type, sizeof (vl.type));
100 sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
102 plugin_dispatch_values (&vl);
103 }
105 static int as_read (void)
106 {
107 kern_return_t status;
108 io_iterator_t iterator;
109 io_object_t io_obj;
110 CFMutableDictionaryRef prop_dict;
111 CFTypeRef property;
113 char type[128];
114 char inst[128];
115 int value_int;
116 double value_double;
117 if (!io_master_port || (io_master_port == MACH_PORT_NULL))
118 return (-1);
120 status = IOServiceGetMatchingServices (io_master_port,
121 IOServiceNameMatching("IOHWSensor"),
122 &iterator);
123 if (status != kIOReturnSuccess)
124 {
125 ERROR ("IOServiceGetMatchingServices failed: %s",
126 mach_error_string (status));
127 return (-1);
128 }
130 while ((io_obj = IOIteratorNext (iterator)))
131 {
132 prop_dict = NULL;
133 status = IORegistryEntryCreateCFProperties (io_obj,
134 &prop_dict,
135 kCFAllocatorDefault,
136 kNilOptions);
137 if (status != kIOReturnSuccess)
138 {
139 DEBUG ("IORegistryEntryCreateCFProperties failed: %s",
140 mach_error_string (status));
141 continue;
142 }
144 /* Copy the sensor type. */
145 property = NULL;
146 if (!CFDictionaryGetValueIfPresent (prop_dict,
147 CFSTR ("type"),
148 &property))
149 continue;
150 if (CFGetTypeID (property) != CFStringGetTypeID ())
151 continue;
152 if (!CFStringGetCString (property,
153 type, sizeof (type),
154 kCFStringEncodingASCII))
155 continue;
156 type[sizeof (type) - 1] = '\0';
158 /* Copy the sensor location. This will be used as `instance'. */
159 property = NULL;
160 if (!CFDictionaryGetValueIfPresent (prop_dict,
161 CFSTR ("location"),
162 &property))
163 continue;
164 if (CFGetTypeID (property) != CFStringGetTypeID ())
165 continue;
166 if (!CFStringGetCString (property,
167 inst, sizeof (inst),
168 kCFStringEncodingASCII))
169 continue;
170 inst[sizeof (inst) - 1] = '\0';
171 for (int i = 0; i < 128; i++)
172 {
173 if (inst[i] == '\0')
174 break;
175 else if (isalnum (inst[i]))
176 inst[i] = (char) tolower (inst[i]);
177 else
178 inst[i] = '_';
179 }
181 /* Get the actual value. Some computation, based on the `type'
182 * is neccessary. */
183 property = NULL;
184 if (!CFDictionaryGetValueIfPresent (prop_dict,
185 CFSTR ("current-value"),
186 &property))
187 continue;
188 if (CFGetTypeID (property) != CFNumberGetTypeID ())
189 continue;
190 if (!CFNumberGetValue (property,
191 kCFNumberIntType,
192 &value_int))
193 continue;
195 /* Found e.g. in the 1.5GHz PowerBooks */
196 if (strcmp (type, "temperature") == 0)
197 {
198 value_double = ((double) value_int) / 65536.0;
199 sstrncpy (type, "temperature", sizeof (type));
200 }
201 else if (strcmp (type, "temp") == 0)
202 {
203 value_double = ((double) value_int) / 10.0;
204 sstrncpy (type, "temperature", sizeof (type));
205 }
206 else if (strcmp (type, "fanspeed") == 0)
207 {
208 value_double = ((double) value_int) / 65536.0;
209 sstrncpy (type, "fanspeed", sizeof (type));
210 }
211 else if (strcmp (type, "voltage") == 0)
212 {
213 /* Leave this to the battery plugin. */
214 continue;
215 }
216 else if (strcmp (type, "adc") == 0)
217 {
218 value_double = ((double) value_int) / 10.0;
219 sstrncpy (type, "fanspeed", sizeof (type));
220 }
221 else
222 {
223 DEBUG ("apple_sensors: Read unknown sensor type: %s",
224 type);
225 value_double = (double) value_int;
226 }
228 as_submit (type, inst, value_double);
230 CFRelease (prop_dict);
231 IOObjectRelease (io_obj);
232 } /* while (iterator) */
234 IOObjectRelease (iterator);
236 return (0);
237 } /* int as_read */
239 void module_register (void)
240 {
241 plugin_register_init ("apple_sensors", as_init);
242 plugin_register_read ("apple_sensors", as_read);
243 } /* void module_register */