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23 lines
510 B
Objective-C
23 lines
510 B
Objective-C
#import "DeviceUptime.h"
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#include <sys/sysctl.h>
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int32_t getDeviceUptimeSeconds(int32_t *bootTime) {
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struct timeval boottime;
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int mib[2] = {CTL_KERN, KERN_BOOTTIME};
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size_t size = sizeof(boottime);
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time_t now;
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time_t uptime = -1;
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(void)time(&now);
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if (sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 && boottime.tv_sec != 0) {
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uptime = now - boottime.tv_sec;
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if (bootTime != NULL) {
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*bootTime = boottime.tv_sec;
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}
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}
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return uptime;
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}
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