41 lines
1.2 KiB
Go
41 lines
1.2 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify it
|
|
// under the terms of the GNU General Public License as published by the Free
|
|
// Software Foundation, either version 3 of the License, or (at your option)
|
|
// any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful, but WITHOUT
|
|
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
// more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License along
|
|
// with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package main
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"syscall"
|
|
"unsafe"
|
|
)
|
|
|
|
var (
|
|
kernel32, _ = syscall.LoadLibrary("kernel32.dll")
|
|
globalMemoryStatusEx, _ = syscall.GetProcAddress(kernel32, "GlobalMemoryStatusEx")
|
|
)
|
|
|
|
func memorySize() (uint64, error) {
|
|
var memoryStatusEx [64]byte
|
|
binary.LittleEndian.PutUint32(memoryStatusEx[:], 64)
|
|
p := uintptr(unsafe.Pointer(&memoryStatusEx[0]))
|
|
|
|
ret, _, callErr := syscall.Syscall(uintptr(globalMemoryStatusEx), 1, p, 0, 0)
|
|
if ret == 0 {
|
|
return 0, callErr
|
|
}
|
|
|
|
return binary.LittleEndian.Uint64(memoryStatusEx[8:]), nil
|
|
}
|