nostrdb

an unfairly fast embedded nostr database backed by lmdb
git clone git://jb55.com/nostrdb
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cpu.h (863B)


      1 
      2 #if defined(_WIN32) || defined(_WIN64)
      3 	#include <windows.h>
      4 #elif defined(__linux__)
      5 	#include <unistd.h>
      6 #elif defined(__APPLE__)
      7 	#include <sys/types.h>
      8 	#include <sys/sysctl.h>
      9 #else
     10 	#error "Unsupported platform"
     11 #endif
     12 
     13 static inline int get_cpu_cores() {
     14 	int num_cores = 0;
     15 
     16 	// Windows
     17 	#if defined(_WIN32) || defined(_WIN64)
     18 		SYSTEM_INFO sysinfo;
     19 		GetSystemInfo(&sysinfo);
     20 		num_cores = sysinfo.dwNumberOfProcessors; // This returns logical processors
     21 		// Further use GetLogicalProcessorInformation for physical cores...
     22 	// Linux
     23 	#elif defined(__linux__)
     24 		num_cores = sysconf(_SC_NPROCESSORS_ONLN); // This returns logical processors
     25 	// macOS
     26 	#elif defined(__APPLE__)
     27 		size_t size = sizeof(num_cores);
     28 		sysctlbyname("hw.physicalcpu", &num_cores, &size, NULL, 0);
     29 	#else
     30 		num_cores = -1; // Unsupported platform
     31 	#endif
     32 
     33 	return num_cores;
     34 }