storj.io/minio@v0.0.0-20230509071714-0cbc90f649b1/pkg/sys/stats_windows.go (about)

     1  //go:build windows
     2  // +build windows
     3  
     4  /*
     5   * MinIO Cloud Storage, (C) 2016,2017 MinIO, Inc.
     6   *
     7   * Licensed under the Apache License, Version 2.0 (the "License");
     8   * you may not use this file except in compliance with the License.
     9   * You may obtain a copy of the License at
    10   *
    11   *     http://www.apache.org/licenses/LICENSE-2.0
    12   *
    13   * Unless required by applicable law or agreed to in writing, software
    14   * distributed under the License is distributed on an "AS IS" BASIS,
    15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    16   * See the License for the specific language governing permissions and
    17   * limitations under the License.
    18   */
    19  
    20  package sys
    21  
    22  import (
    23  	"syscall"
    24  	"unsafe"
    25  
    26  	"golang.org/x/sys/windows"
    27  )
    28  
    29  var (
    30  	modkernel32              = windows.NewLazySystemDLL("kernel32.dll")
    31  	procGlobalMemoryStatusEx = modkernel32.NewProc("GlobalMemoryStatusEx")
    32  )
    33  
    34  type memoryStatusEx struct {
    35  	cbSize                  uint32
    36  	dwMemoryLoad            uint32
    37  	ullTotalPhys            uint64 // in bytes
    38  	ullAvailPhys            uint64
    39  	ullTotalPageFile        uint64
    40  	ullAvailPageFile        uint64
    41  	ullTotalVirtual         uint64
    42  	ullAvailVirtual         uint64
    43  	ullAvailExtendedVirtual uint64
    44  }
    45  
    46  // GetStats - return system statistics for windows.
    47  func GetStats() (stats Stats, err error) {
    48  	var memInfo memoryStatusEx
    49  	memInfo.cbSize = uint32(unsafe.Sizeof(memInfo))
    50  	if mem, _, _ := procGlobalMemoryStatusEx.Call(uintptr(unsafe.Pointer(&memInfo))); mem == 0 {
    51  		err = syscall.GetLastError()
    52  	} else {
    53  		stats.TotalRAM = memInfo.ullTotalPhys
    54  	}
    55  
    56  	return stats, err
    57  }