Linux
ColumbusTech
parent
8c621c33c9
commit
74bfdc5a0c
232
corinfo.h
232
corinfo.h
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@ -32,6 +32,8 @@
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#ifdef __linux
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#include <sys/sysinfo.h>
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#include <sys/statvfs.h>
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#include <sys/types.h>
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#include <unistd.h>
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#endif
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@ -48,13 +50,15 @@
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* @file corinfo.h
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*/
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struct corinfo
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struct corinfo_cpu
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{
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uint32_t CpuCount; //!< Number of CPU cores.
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uint32_t CpuFrequency; //!< CPU frequency, in MHz.
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uint32_t Count; //!< Number of CPU cores.
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uint32_t Frequency; //!< CPU frequency, in MHz.
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uint32_t Family;
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uint32_t Model;
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uint8_t VendorString[12];
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uint8_t BrandString[48];
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uint8_t Vendor[12];
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uint8_t Name[48];
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uint8_t MMX;
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uint8_t SSE;
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@ -63,10 +67,27 @@ struct corinfo
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uint8_t SSE41;
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uint8_t SSE42;
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uint8_t AVX;
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};
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uint32_t RamSize; //!< Physical RAM size, in KB.
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uint32_t RamFree; //!< Available physical RAM size, in KB.
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uint32_t RamUsage; //!< A number between 0 and 100 that specifies the approximate percentage of physical memory that is in use.
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struct corinfo_ram
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{
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uint64_t Total; //!< Physical RAM size, in KB.
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uint64_t Free; //!< Available physical RAM size, in KB.
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uint32_t Usage; //!< A number between 0 and 100 that specifies the approximate percentage of physical memory that is in use.
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};
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struct corinfo_hdd
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{
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uint64_t Total; //!< HDD size, in KB.
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uint64_t Free; //!< Available HDD size, in KB.
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uint32_t Usage; //!< A number between 0 and 100 that specifies the approximate percentage of HDD memory that is in use.
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};
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struct corinfo
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{
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struct corinfo_cpu Cpu;
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struct corinfo_ram Ram;
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struct corinfo_hdd Hdd;
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};
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/**
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@ -84,55 +105,69 @@ struct corinfo
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*/
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int corinfo_GetInfo(struct corinfo* info);
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#ifdef __linux
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#define __cpuid(cpu, command) \
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asm volatile \
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("cpuid" : "=a" (cpu[0]), "=b" (cpu[1]), "=c" (cpu[2]), "=d" (cpu[3]) \
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: "a" (command), "c" (0));
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#endif
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#ifdef _WIN32
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#ifdef _MSC_VER
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// __cpuid(cpu, command) is actually defined in MSVC
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#endif
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#endif
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static void __null_corinfo(struct corinfo* info);
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static void __vendor_string(int cpu[4], uint8_t* string);
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static void __brand_string(int cpu[4], uint8_t* string);
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static void __extensions(int cpu[4], struct corinfo* info);
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static int __cpu_info(struct corinfo* info);
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static int __ram_info(struct corinfo* info);
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static int __hdd_info(struct corinfo* info);
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#ifdef __linux
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int corinfo_GetInfo(struct corinfo* info)
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static char* skip_whitespace(char* str)
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{
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if (info == NULL) return -1;
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__null_corinfo(info);
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while (*str == ' ' || *str == '\n' || *str == '\t' || *str == '\r' || *str == '\f' || *str == '\v') str++;
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return str;
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}
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struct sysinfo sys;
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if (sysinfo(&sys) == -1) return -1;
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int __cpu_info(struct corinfo* info)
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{
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info->Cpu.Count = sysconf(_SC_NPROCESSORS_ONLN);
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int cpu[4];
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// CPUID 0x00 code returns in EAX maximum CPUID code and vendor string in EBX, EDX, ECX.
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__cpuid(cpu, 0x00000000);
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__vendor_string(cpu, info->VendorString);
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__brand_string(cpu, info->BrandString);
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__extensions(cpu, info);
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// /proc/cpuinfo reading is necessary for CPUs not implementing CPUID 0x16 code.
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FILE* f = fopen("/proc/cpuinfo", "rb");
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FILE* f = fopen("/proc/cpuinfo", "r");
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if (f == NULL) return -1;
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char* line = NULL;
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size_t line_length = 0;
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ssize_t line_read = 0;
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size_t MHz;
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while ((line_read = getline(&line, &line_length, f)) != -1)
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{
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if (memcmp(line, "cpu MHz", 7) == 0)
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{
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MHz = atoi(strchr(line, ':') + 2);
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break;
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info->Cpu.Frequency = atoi(strchr(line, ':') + 1);
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}
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if (memcmp(line, "cpu family", 10) == 0)
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{
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info->Cpu.Family = atoi(strchr(line, ':') + 1);
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}
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if (memcmp(line, "model\t", 6) == 0)
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{
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info->Cpu.Model = atoi(strchr(line, ':') + 1);
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}
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if (memcmp(line, "vendor_id", 9) == 0)
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{
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memcpy(info->Cpu.Vendor, &line[line_read] - 13, 12);
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}
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if (memcmp(line, "model name", 10) == 0)
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{
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char* str = skip_whitespace(strchr(line, ':') + 1);
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size_t len = strlen(str);
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for (int i = 0; i < len; i++) if (str[i] == '\n') str[i] = ' ';
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memcpy(info->Cpu.Name, str, len);
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}
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if (memcmp(line, "flags", 5) == 0)
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{
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char* str = strchr(line, ':') + 1;
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info->Cpu.MMX = strstr(str, " mmx") != NULL;
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info->Cpu.SSE = strstr(str, " sse") != NULL;
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info->Cpu.SSE2 = strstr(str, " sse2") != NULL;
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info->Cpu.SSE3 = strstr(str, " ssse3") != NULL;
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info->Cpu.SSE41 = strstr(str, " sse4_1") != NULL;
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info->Cpu.SSE42 = strstr(str, " sse4_2") != NULL;
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info->Cpu.AVX = strstr(str, " avx") != NULL;
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}
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}
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@ -140,12 +175,49 @@ static void __extensions(int cpu[4], struct corinfo* info);
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fclose(f);
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info->CpuCount = sysconf(_SC_NPROCESSORS_ONLN);
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info->CpuFrequency = MHz;
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return 0;
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}
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info->RamSize = sys.totalram / 1024;
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info->RamFree = sys.freeram / 1024;
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info->RamUsage = 100 - (info->RamFree / (float)info->RamSize) * 100;
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int __ram_info(struct corinfo* info)
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{
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struct sysinfo sys;
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if (sysinfo(&sys) == -1) return -1;
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info->Ram.Total = sys.totalram / 1024;
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info->Ram.Free = sys.freeram / 1024;
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if (info->Ram.Total != 0)
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{
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info->Ram.Usage = 100 - (info->Ram.Free / (float)info->Ram.Total) * 100;
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}
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return 0;
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}
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int __hdd_info(struct corinfo* info)
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{
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struct statvfs hd;
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if (statvfs("./", &hd) == -1) return -1;
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info->Hdd.Total = hd.f_frsize * hd.f_blocks / 1024;
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info->Hdd.Free = hd.f_frsize * hd.f_bavail / 1024;
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if (info->Hdd.Total != 0)
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{
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info->Hdd.Usage = 100 - (info->Hdd.Free / (double)info->Hdd.Total) * 100;
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}
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return 0;
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}
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int corinfo_GetInfo(struct corinfo* info)
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{
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if (info == NULL) return -1;
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*info = (struct corinfo){0};
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if (__cpu_info(info) == -1) return -1;
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if (__ram_info(info) == -1) return -1;
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if (__hdd_info(info) == -1) return -1;
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return 0;
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}
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@ -202,72 +274,6 @@ static void __extensions(int cpu[4], struct corinfo* info);
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}
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#endif
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void __null_corinfo(struct corinfo* info)
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{
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info->CpuCount = 0;
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info->CpuFrequency = 0;
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for (int i = 0; i < 12; i++) info->VendorString[i] = 0;
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for (int i = 0; i < 48; i++) info->BrandString[i] = 0;
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info->MMX = 0;
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info->SSE = 0;
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info->SSE2 = 0;
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info->SSE3 = 0;
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info->SSE41 = 0;
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info->SSE42 = 0;
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info->AVX = 0;
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info->RamSize = 0;
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info->RamFree = 0;
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info->RamUsage = 0;
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}
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void __vendor_string(int cpu[4], uint8_t* string)
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{
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for (int i = 0; i < 4; i++)
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{
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string[i + 0] = (cpu[1] >> (i * 8)) & 0xFF;
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string[i + 4] = (cpu[3] >> (i * 8)) & 0xFF;
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string[i + 8] = (cpu[2] >> (i * 8)) & 0xFF;
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}
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}
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void __brand_string(int cpu[4], uint8_t* string)
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{
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int commands[3] = { 0x80000002, 0x80000003, 0x80000004 };
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int offset = 0;
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for (int i = 0; i < 3; i++)
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{
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__cpuid(cpu, commands[i]);
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for (int j = 0; j < 4; j++)
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{
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string[offset + j + 0] = (cpu[0] >> (j * 8)) & 0xFF;
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string[offset + j + 4] = (cpu[1] >> (j * 8)) & 0xFF;
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string[offset + j + 8] = (cpu[2] >> (j * 8)) & 0xFF;
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string[offset + j + 12] = (cpu[3] >> (j * 8)) & 0xFF;
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}
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offset += 16;
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}
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}
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void __extensions(int cpu[4], struct corinfo* info)
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{
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__cpuid(cpu, 0x00000001);
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info->MMX = (cpu[3] >> 23) & 0x1;
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info->SSE = (cpu[3] >> 25) & 0x1;
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info->SSE2 = (cpu[3] >> 26) & 0x1;
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info->SSE3 = (cpu[2] >> 0) & 0x1;
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info->SSE41 = (cpu[2] >> 19) & 0x1;
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info->SSE42 = (cpu[2] >> 20) & 0x1;
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info->AVX = (cpu[2] >> 28) & 0x1;
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}
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#undef __cpuid
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#endif
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