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memory_linux.go
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memory_linux.go
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//go:build linux
package hwstats
import "syscall"
func sysTotalMemory() uint64 {
in := &syscall.Sysinfo_t{}
err := syscall.Sysinfo(in)
if err != nil {
return 0
}
// If this is a 32-bit system, then these fields are
// uint32 instead of uint64.
// So we always convert to uint64 to match signature.
return uint64(in.Totalram) * uint64(in.Unit)
}
func sysFreeMemory() uint64 {
in := &syscall.Sysinfo_t{}
err := syscall.Sysinfo(in)
if err != nil {
return 0
}
// If this is a 32-bit system, then these fields are
// uint32 instead of uint64.
// So we always convert to uint64 to match signature.
return uint64(in.Freeram) * uint64(in.Unit)
}
func sysMemoryUsage() uint64 {
in := &syscall.Sysinfo_t{}
err := syscall.Sysinfo(in)
if err != nil {
return 0
}
// If this is a 32-bit system, then these fields are
// uint32 instead of uint64.
// So we always convert to uint64 to match signature.
return uint64(in.Totalram-in.Freeram) * uint64(in.Unit)
}