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李通洲
20 lines
570 B
C
20 lines
570 B
C
#include "cpuUsage.h"
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#include <sys/types.h>
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#include <sys/user.h>
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#include <sys/sysctl.h>
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const char* ffGetCpuUsageInfo(uint64_t* inUseAll, uint64_t* totalAll)
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{
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// interrupt processing, user processes, system processing, lock spinning, and idling
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uint64_t cpTime[5];
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size_t neededLength = sizeof(cpTime);
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if(sysctlbyname("kern.cp_time", cpTime, &neededLength, NULL, 0) != 0)
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return "sysctlbyname(kern.cp_time) failed";
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*inUseAll = cpTime[0] + cpTime[1] + cpTime[2] + cpTime[3];
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*totalAll = *inUseAll + cpTime[4];
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return NULL;
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}
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