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 kern_return_t status;
63 if (io_master_port != MACH_PORT_NULL) {
64 mach_port_deallocate(mach_task_self(), io_master_port);
65 io_master_port = MACH_PORT_NULL;
66 }
68 status = IOMasterPort(MACH_PORT_NULL, &io_master_port);
69 if (status != kIOReturnSuccess) {
70 ERROR("IOMasterPort failed: %s", mach_error_string(status));
71 io_master_port = MACH_PORT_NULL;
72 return (-1);
73 }
75 return (0);
76 }
78 static void as_submit(const char *type, const char *type_instance, double val) {
79 value_t values[1];
80 value_list_t vl = VALUE_LIST_INIT;
82 DEBUG("type = %s; type_instance = %s; val = %f;", type, type_instance, val);
84 values[0].gauge = val;
86 vl.values = values;
87 vl.values_len = 1;
88 sstrncpy(vl.host, hostname_g, sizeof(vl.host));
89 sstrncpy(vl.plugin, "apple_sensors", sizeof(vl.plugin));
90 sstrncpy(vl.plugin_instance, "", sizeof(vl.plugin_instance));
91 sstrncpy(vl.type, type, sizeof(vl.type));
92 sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
94 plugin_dispatch_values(&vl);
95 }
97 static int as_read(void) {
98 kern_return_t status;
99 io_iterator_t iterator;
100 io_object_t io_obj;
101 CFMutableDictionaryRef prop_dict;
102 CFTypeRef property;
104 char type[128];
105 char inst[128];
106 int value_int;
107 double value_double;
108 if (!io_master_port || (io_master_port == MACH_PORT_NULL))
109 return (-1);
111 status = IOServiceGetMatchingServices(
112 io_master_port, IOServiceNameMatching("IOHWSensor"), &iterator);
113 if (status != kIOReturnSuccess) {
114 ERROR("IOServiceGetMatchingServices failed: %s", mach_error_string(status));
115 return (-1);
116 }
118 while ((io_obj = IOIteratorNext(iterator))) {
119 prop_dict = NULL;
120 status = IORegistryEntryCreateCFProperties(
121 io_obj, &prop_dict, kCFAllocatorDefault, kNilOptions);
122 if (status != kIOReturnSuccess) {
123 DEBUG("IORegistryEntryCreateCFProperties failed: %s",
124 mach_error_string(status));
125 continue;
126 }
128 /* Copy the sensor type. */
129 property = NULL;
130 if (!CFDictionaryGetValueIfPresent(prop_dict, CFSTR("type"), &property))
131 continue;
132 if (CFGetTypeID(property) != CFStringGetTypeID())
133 continue;
134 if (!CFStringGetCString(property, type, sizeof(type),
135 kCFStringEncodingASCII))
136 continue;
137 type[sizeof(type) - 1] = '\0';
139 /* Copy the sensor location. This will be used as `instance'. */
140 property = NULL;
141 if (!CFDictionaryGetValueIfPresent(prop_dict, CFSTR("location"), &property))
142 continue;
143 if (CFGetTypeID(property) != CFStringGetTypeID())
144 continue;
145 if (!CFStringGetCString(property, inst, sizeof(inst),
146 kCFStringEncodingASCII))
147 continue;
148 inst[sizeof(inst) - 1] = '\0';
149 for (int i = 0; i < 128; i++) {
150 if (inst[i] == '\0')
151 break;
152 else if (isalnum(inst[i]))
153 inst[i] = (char)tolower(inst[i]);
154 else
155 inst[i] = '_';
156 }
158 /* Get the actual value. Some computation, based on the `type'
159 * is neccessary. */
160 property = NULL;
161 if (!CFDictionaryGetValueIfPresent(prop_dict, CFSTR("current-value"),
162 &property))
163 continue;
164 if (CFGetTypeID(property) != CFNumberGetTypeID())
165 continue;
166 if (!CFNumberGetValue(property, kCFNumberIntType, &value_int))
167 continue;
169 /* Found e.g. in the 1.5GHz PowerBooks */
170 if (strcmp(type, "temperature") == 0) {
171 value_double = ((double)value_int) / 65536.0;
172 sstrncpy(type, "temperature", sizeof(type));
173 } else if (strcmp(type, "temp") == 0) {
174 value_double = ((double)value_int) / 10.0;
175 sstrncpy(type, "temperature", sizeof(type));
176 } else if (strcmp(type, "fanspeed") == 0) {
177 value_double = ((double)value_int) / 65536.0;
178 sstrncpy(type, "fanspeed", sizeof(type));
179 } else if (strcmp(type, "voltage") == 0) {
180 /* Leave this to the battery plugin. */
181 continue;
182 } else if (strcmp(type, "adc") == 0) {
183 value_double = ((double)value_int) / 10.0;
184 sstrncpy(type, "fanspeed", sizeof(type));
185 } else {
186 DEBUG("apple_sensors: Read unknown sensor type: %s", type);
187 value_double = (double)value_int;
188 }
190 as_submit(type, inst, value_double);
192 CFRelease(prop_dict);
193 IOObjectRelease(io_obj);
194 } /* while (iterator) */
196 IOObjectRelease(iterator);
198 return (0);
199 } /* int as_read */
201 void module_register(void) {
202 plugin_register_init("apple_sensors", as_init);
203 plugin_register_read("apple_sensors", as_read);
204 } /* void module_register */