diff options
Diffstat (limited to 'libgo/go/runtime/os_netbsd.go')
| -rw-r--r-- | libgo/go/runtime/os_netbsd.go | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/libgo/go/runtime/os_netbsd.go b/libgo/go/runtime/os_netbsd.go index 00c3285..b2c815e 100644 --- a/libgo/go/runtime/os_netbsd.go +++ b/libgo/go/runtime/os_netbsd.go @@ -33,13 +33,22 @@ func lwp_unpark(lwp int32, hint unsafe.Pointer) int32 //extern-sysinfo sysctl func sysctl(*uint32, uint32, *byte, *uintptr, *byte, uintptr) int32 -func getncpu() int32 { - mib := [2]uint32{_CTL_HW, _HW_NCPU} - out := uint32(0) +func sysctlInt(mib []uint32) (int32, bool) { + var out int32 nout := unsafe.Sizeof(out) - ret := sysctl(&mib[0], 2, (*byte)(unsafe.Pointer(&out)), &nout, nil, 0) - if ret >= 0 { - return int32(out) + ret := sysctl(&mib[0], uint32(len(mib)), (*byte)(unsafe.Pointer(&out)), &nout, nil, 0) + if ret < 0 { + return 0, false + } + return out, true +} + +func getncpu() int32 { + if n, ok := sysctlInt([]uint32{_CTL_HW, _HW_NCPUONLINE}); ok { + return int32(n) + } + if n, ok := sysctlInt([]uint32{_CTL_HW, _HW_NCPU}); ok { + return int32(n) } return 1 } |