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Adds support for NetBSD platform. (#91)
* Adds support for NetBSD platform. * Minor refactor of the variable name for consistency. * Update the README to include NetBSD in the list of supported OSes.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| #include <sys/param.h> | ||
| #include <sys/proc.h> | ||
| #include <sys/resource.h> | ||
| #include <sys/types.h> | ||
| #include <sys/mount.h> | ||
| #include <sys/swap.h> | ||
| #include <sys/sysctl.h> | ||
| #include <sys/utsname.h> | ||
| #include <pthread.h> | ||
| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
| #include <unistd.h> | ||
| #include <kvm.h> | ||
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| #include <uvm/uvm_extern.h> | ||
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| #include "info.h" | ||
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| #define ONE_K 1024L | ||
| #define ONE_DECIMAL_K 1000L | ||
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| #ifndef PAGE_SIZE | ||
| #define PAGE_SIZE ( sysconf(_SC_PAGESIZE) ) | ||
| #endif | ||
| #define PAGE_SIZE_KB ( PAGE_SIZE / ONE_K ) | ||
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| static const char *os_release; | ||
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| static pthread_once_t once_init_netbsd; | ||
| static void init_netbsd(void) { | ||
| struct utsname un; | ||
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| if (uname(&un) == -1) | ||
| return; | ||
| os_release = strdup(un.release); | ||
| } | ||
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| const char *get_os_release(void) { | ||
| pthread_once(&once_init_netbsd, init_netbsd); | ||
| return (os_release); | ||
| } | ||
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| uint64_t get_cpu_speed(void) { | ||
| uint64_t tsc_freq; | ||
| size_t len; | ||
| int error; | ||
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| #if defined(__i386__) || defined(__amd64__) | ||
| len = sizeof(tsc_freq); | ||
| error = sysctlbyname("machdep.tsc_freq", &tsc_freq, &len, NULL, 0); | ||
| if (error == -1) | ||
| return (0); | ||
| #else | ||
| tsc_freq = ONE_DECIMAL_K * ONE_DECIMAL_K * ONE_DECIMAL_K; | ||
| #endif | ||
| return (tsc_freq / ONE_DECIMAL_K / ONE_DECIMAL_K); | ||
| } | ||
|
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||
| unsigned long get_proc_total(void) { | ||
| char errbuf[_POSIX2_LINE_MAX]; | ||
| int count; | ||
| kvm_t *kd; | ||
| struct kinfo_proc *kp; | ||
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| if ((kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf)) == NULL) | ||
| return (0); | ||
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| if ((kp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count)) == NULL) { | ||
| (void) kvm_close(kd); | ||
| return(0); | ||
| } | ||
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| kvm_close(kd); | ||
| free(kp); | ||
| return (unsigned long) (count); | ||
| } | ||
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| int32_t get_mem_info_bsd(struct MemInfo *mi) { | ||
| static int uvmexp_mib[] = {CTL_VM, VM_UVMEXP2}; | ||
| struct uvmexp_sysctl uvmexp; | ||
| size_t size_uvmexp = sizeof(uvmexp); | ||
| int error; | ||
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| error = sysctl(uvmexp_mib, 2, &uvmexp, &size_uvmexp, NULL, 0); | ||
| if (error == -1) | ||
| goto fail; | ||
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| // These calculations have been taken from sys/miscfs/procfs | ||
| // They need review for testing the correctness | ||
| mi->total = (uint64_t)uvmexp.npages * PAGE_SIZE_KB / ONE_K; | ||
| mi->avail = 0; | ||
| mi->free = (uint64_t)uvmexp.free * PAGE_SIZE_KB / ONE_K; | ||
| mi->cached = (uvmexp.anonpages + uvmexp.filepages + uvmexp.execpages) * PAGE_SIZE_KB / ONE_K; | ||
| mi->buffers = uvmexp.filepages * PAGE_SIZE_KB / ONE_K; | ||
| mi->swap_total = uvmexp.swpages * PAGE_SIZE_KB / ONE_K; | ||
| mi->swap_free = (uvmexp.swpages - uvmexp.swpginuse) * PAGE_SIZE_KB / ONE_K; | ||
| return (0); | ||
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| fail: | ||
| return (-1); | ||
| } | ||
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| int32_t get_disk_info_bsd(DiskInfo *di) { | ||
| struct statvfs *svfs, *svf; | ||
| int i, nmounts; | ||
| uint64_t dtotal, dfree; | ||
| int32_t res = 0; | ||
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| dtotal = 0; | ||
| dfree = 0; | ||
| svfs = NULL; | ||
| res = -1; | ||
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| nmounts = getvfsstat(NULL, 0, MNT_WAIT); | ||
| if (nmounts == -1) | ||
| goto fail; | ||
| svfs = calloc(nmounts, sizeof(*svfs)); | ||
| if (svfs == NULL) | ||
| goto fail; | ||
| nmounts = getvfsstat(svfs, nmounts * sizeof(*svfs), MNT_WAIT); | ||
| if (nmounts == -1) | ||
| goto fail; | ||
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| for (i = 0; i < nmounts; i++) { | ||
| svf = &svfs[i]; | ||
| if ((svf->f_flag & MNT_LOCAL) != MNT_LOCAL) | ||
| continue; | ||
| dtotal += svf->f_blocks * svf->f_bsize; | ||
| dfree += svf->f_bfree * svf->f_bsize; | ||
| } | ||
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| di->total = dtotal / 1000; | ||
| di->free = dfree / 1000; | ||
| res = 0; | ||
|
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| fail: | ||
| free(svfs); | ||
| return (res); | ||
| } |
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