diff --git a/fetch/apply_windows.go b/fetch/apply_windows.go new file mode 100644 index 0000000..610ab13 --- /dev/null +++ b/fetch/apply_windows.go @@ -0,0 +1,54 @@ +package main + +import ( + "log" + "os" + "syscall" + "unsafe" +) + +var ( + kernel32 = syscall.NewLazyDLL("kernel32.dll") + globalMemoryStatusEx = kernel32.NewProc("GlobalMemoryStatusEx") +) + +type globalMemoryStatusExT struct { + dwLength uint32 + dwMemoryLoad uint32 + ullTotalPhys uint64 + ullAvailPhys uint64 + unused [5]uint64 +} + +func init() { + if h, err := os.Hostname(); err != nil { + log.Fatalf("error reading hostname: %s", err) + } else { + hostname = h + } +} + +func (s *applyState) populateLoadavg() { + if s.loadavg != nil { + return + } + + // loadavg is unsupported on Windows + s.loadavg = &[3]string{"0.00", "0.00", "0.00"} +} + +func (s *applyState) populateMem() { + if s.mem != nil { + return + } + + // failure defaults + s.mem = &[2]int{-1, -1} + + v := new(globalMemoryStatusExT) + v.dwLength = 64 + r1, _, err := globalMemoryStatusEx.Call(uintptr(unsafe.Pointer(v))) + log.Printf("call to globalMemoryStatusEx, r1=%d, %s", r1, err) + s.mem[0] = int(v.ullAvailPhys / (1 << 10)) + s.mem[1] = int(v.ullTotalPhys / (1 << 10)) +}