2020-09-25 12:03:55 +00:00
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#include "Battery.h"
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2015-07-12 18:47:43 +00:00
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2020-09-07 09:52:42 +00:00
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#include <math.h>
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2015-07-12 18:47:43 +00:00
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#include <CoreFoundation/CoreFoundation.h>
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#include <CoreFoundation/CFString.h>
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#include <IOKit/ps/IOPowerSources.h>
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#include <IOKit/ps/IOPSKeys.h>
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void Battery_getData(double* level, ACPresence* isOnAC) {
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2015-08-19 16:56:46 +00:00
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CFTypeRef power_sources = IOPSCopyPowerSourcesInfo();
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2015-07-12 18:47:43 +00:00
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2020-09-07 09:52:42 +00:00
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*level = NAN;
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2015-07-12 18:47:43 +00:00
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*isOnAC = AC_ERROR;
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2020-10-31 19:52:20 +00:00
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if (NULL == power_sources) {
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2015-07-12 18:47:43 +00:00
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return;
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}
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2020-10-27 10:50:18 +00:00
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CFArrayRef list = IOPSCopyPowerSourcesList(power_sources);
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CFDictionaryRef battery = NULL;
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int len;
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2020-10-31 19:52:20 +00:00
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if (NULL == list) {
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CFRelease(power_sources);
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2015-07-12 18:47:43 +00:00
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2020-10-27 10:50:18 +00:00
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return;
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}
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2015-07-12 18:47:43 +00:00
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2020-10-27 10:50:18 +00:00
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len = CFArrayGetCount(list);
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2015-07-12 18:47:43 +00:00
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2020-10-27 10:50:18 +00:00
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/* Get the battery */
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2020-10-31 19:55:36 +00:00
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for (int i = 0; i < len && battery == NULL; ++i) {
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CFDictionaryRef candidate = IOPSGetPowerSourceDescription(power_sources,
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CFArrayGetValueAtIndex(list, i)); /* GET rule */
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CFStringRef type;
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2015-08-19 16:56:46 +00:00
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2020-10-31 19:52:20 +00:00
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if (NULL != candidate) {
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type = (CFStringRef) CFDictionaryGetValue(candidate,
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CFSTR(kIOPSTransportTypeKey)); /* GET rule */
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2015-08-19 16:56:46 +00:00
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2020-10-31 19:52:20 +00:00
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if (kCFCompareEqualTo == CFStringCompare(type, CFSTR(kIOPSInternalType), 0)) {
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CFRetain(candidate);
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battery = candidate;
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}
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}
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2020-10-27 10:50:18 +00:00
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}
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2015-07-12 18:47:43 +00:00
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2020-10-31 19:52:20 +00:00
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if (NULL != battery) {
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2020-10-27 10:50:18 +00:00
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/* Determine the AC state */
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CFStringRef power_state = CFDictionaryGetValue(battery, CFSTR(kIOPSPowerSourceStateKey));
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2015-07-12 18:47:43 +00:00
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2020-10-27 10:50:18 +00:00
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*isOnAC = (kCFCompareEqualTo == CFStringCompare(power_state, CFSTR(kIOPSACPowerValue), 0))
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? AC_PRESENT
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: AC_ABSENT;
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/* Get the percentage remaining */
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double current;
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double max;
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2015-07-12 18:47:43 +00:00
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2020-10-27 10:50:18 +00:00
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CFNumberGetValue(CFDictionaryGetValue(battery, CFSTR(kIOPSCurrentCapacityKey)),
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kCFNumberDoubleType, ¤t);
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CFNumberGetValue(CFDictionaryGetValue(battery, CFSTR(kIOPSMaxCapacityKey)),
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kCFNumberDoubleType, &max);
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2015-07-12 18:47:43 +00:00
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2020-10-27 10:50:18 +00:00
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*level = (current * 100.0) / max;
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2020-10-27 10:50:18 +00:00
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CFRelease(battery);
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2015-07-12 18:47:43 +00:00
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}
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2020-10-27 10:50:18 +00:00
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CFRelease(list);
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CFRelease(power_sources);
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2015-07-12 18:47:43 +00:00
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}
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