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CpuUsage (apple): simplify implementation

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This commit is contained in:
李通洲
2023-02-14 19:24:29 +08:00
parent 64bacd2572
commit cabd36d078
1 changed files with 10 additions and 15 deletions
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src/detection/cpuUsage/cpuUsage_apple.c
+10 -15
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@@ -6,23 +6,18 @@
const char* ffGetCpuUsageInfo(uint64_t* inUseAll, uint64_t* totalAll)
{
natural_t numCPUs = 0U;
processor_info_array_t cpuInfo;
mach_msg_type_number_t numCpuInfo;
host_cpu_load_info_data_t cpustats;
mach_msg_type_number_t count = HOST_CPU_LOAD_INFO_COUNT;
*inUseAll = *totalAll = 0;
if (host_processor_info(mach_host_self(), PROCESSOR_CPU_LOAD_INFO, &numCPUs, &cpuInfo, &numCpuInfo) != KERN_SUCCESS)
return "host_processor_info() failed";
if (numCPUs * CPU_STATE_MAX != numCpuInfo)
return "Unexpected host_processor_info() result";
if (host_statistics(mach_host_self(), HOST_CPU_LOAD_INFO, (host_info_t)(&cpustats), &count) != KERN_SUCCESS)
return "host_statistics() failed";
*inUseAll = cpustats.cpu_ticks[CPU_STATE_USER]
+ cpustats.cpu_ticks[CPU_STATE_SYSTEM]
+ cpustats.cpu_ticks[CPU_STATE_NICE];
*totalAll = *inUseAll + cpustats.cpu_ticks[CPU_STATE_IDLE];
for (natural_t i = 0U; i < numCPUs; ++i) {
integer_t inUse = cpuInfo[CPU_STATE_MAX * i + CPU_STATE_USER]
+ cpuInfo[CPU_STATE_MAX * i + CPU_STATE_SYSTEM]
+ cpuInfo[CPU_STATE_MAX * i + CPU_STATE_NICE];
integer_t total = inUse + cpuInfo[CPU_STATE_MAX * i + CPU_STATE_IDLE];
*inUseAll += (uint64_t)inUse;
*totalAll += (uint64_t)total;
}
return NULL;
}