我正在将windows代码移植到linux中。在linux中是直接用于SYSTEM_INFO结构还是直接用于c ++。
答案 0 :(得分：2)
嗯，传统上Linux中的这种系统属性（部分在FreeBSD中）通过安装在proc和sysfs中的/proc和/或/sys伪文件系统公开。相应地。可以安全地假设任何现在的Linux安装都安装了这两个文件系统（可能存在异常，例如非常专业的嵌入式平台，但即使在现代嵌入式Linux中也是如此）。
历史上/proc是第一个文件系统，而/sys是一个相对现代的发明，类似于＆＃34; / proc revisited＆＃34;。两个文件系统都包含纯文本文件，可以在任何文本查看器中看到。例如，来自我的工作计算机的/proc/cpuinfo内容：
processor : 0
vendor_id : AuthenticAMD
cpu family : 21
model : 2
model name : AMD FX(tm)-6300 Six-Core Processor
stepping : 0
microcode : 0x600081f
cpu MHz : 3500.000
cache size : 2048 KB
physical id : 0
siblings : 6
core id : 0
cpu cores : 3
apicid : 16
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips : 7024.00
TLB size : 1536 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro
processor : 1
vendor_id : AuthenticAMD
cpu family : 21
model : 2
model name : AMD FX(tm)-6300 Six-Core Processor
stepping : 0
microcode : 0x600081f
cpu MHz : 3500.000
cache size : 2048 KB
physical id : 0
siblings : 6
core id : 1
cpu cores : 3
apicid : 17
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips : 7024.00
TLB size : 1536 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro
processor : 2
vendor_id : AuthenticAMD
cpu family : 21
model : 2
model name : AMD FX(tm)-6300 Six-Core Processor
stepping : 0
microcode : 0x600081f
cpu MHz : 3500.000
cache size : 2048 KB
physical id : 0
siblings : 6
core id : 2
cpu cores : 3
apicid : 18
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips : 7024.00
TLB size : 1536 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro
processor : 3
vendor_id : AuthenticAMD
cpu family : 21
model : 2
model name : AMD FX(tm)-6300 Six-Core Processor
stepping : 0
microcode : 0x600081f
cpu MHz : 3500.000
cache size : 2048 KB
physical id : 0
siblings : 6
core id : 3
cpu cores : 3
apicid : 19
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips : 7024.00
TLB size : 1536 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro
processor : 4
vendor_id : AuthenticAMD
cpu family : 21
model : 2
model name : AMD FX(tm)-6300 Six-Core Processor
stepping : 0
microcode : 0x600081f
cpu MHz : 3500.000
cache size : 2048 KB
physical id : 0
siblings : 6
core id : 4
cpu cores : 3
apicid : 20
initial apicid : 4
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips : 7024.00
TLB size : 1536 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro
processor : 5
vendor_id : AuthenticAMD
cpu family : 21
model : 2
model name : AMD FX(tm)-6300 Six-Core Processor
stepping : 0
microcode : 0x600081f
cpu MHz : 3500.000
cache size : 2048 KB
physical id : 0
siblings : 6
core id : 5
cpu cores : 3
apicid : 21
initial apicid : 5
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips : 7024.00
TLB size : 1536 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro
每个processor:记录对应一个CPU核心。
这是/proc/meminfo：
MemTotal: 8096232 kB
MemFree: 343624 kB
Buffers: 129028 kB
Cached: 5403048 kB
SwapCached: 116240 kB
Active: 4294232 kB
Inactive: 2870648 kB
Active(anon): 1145016 kB
Inactive(anon): 598192 kB
Active(file): 3149216 kB
Inactive(file): 2272456 kB
Unevictable: 16 kB
Mlocked: 16 kB
SwapTotal: 8388600 kB
SwapFree: 8008696 kB
Dirty: 60 kB
Writeback: 168 kB
AnonPages: 1569448 kB
Mapped: 218248 kB
Shmem: 110404 kB
Slab: 457752 kB
SReclaimable: 401808 kB
SUnreclaim: 55944 kB
KernelStack: 3968 kB
PageTables: 37676 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 12436716 kB
Committed_AS: 4066516 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 348140 kB
VmallocChunk: 34359386920 kB
HardwareCorrupted: 0 kB
AnonHugePages: 167936 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 527000 kB
DirectMap2M: 6711296 kB
DirectMap1G: 1048576 kB
还有一些＆＃34;程序化的＆＃34;这些文件系统的接口但它们有点过分，例如sysfs warn against using libsysfs的作者： - ）
所以问题是：您需要检索哪些完全的信息？