package main
import (
"fmt"
"syscall"
"unsafe"
)
const (
PROCESS_QUERY_INFORMATION = 1 << 10
PROCESS_VM_READ = 1 << 4
)
//defind a struct
type PROCESS_MEMORY_COUNTERS struct {
cb uint32
PageFaultCount uint32
PeakWorkingSetSize uint64
WorkingSetSize uint64
QuotaPeakPagedPoolUsage uint64
QuotaPagedPoolUsage uint64
QuotaPeakNonPagedPoolUsage uint64
QuotaNonPagedPoolUsage uint64
PagefileUsage uint64
PeakPagefileUsage uint64
}
func main() {
//get Process Handle
current, err := syscall.OpenProcess(PROCESS_QUERY_INFORMATION|PROCESS_VM_READ, false, 728)
if err != nil {
return
}
//call psapi.ll
psapi := syscall.NewLazyDLL("psapi.dll")
var process PROCESS_MEMORY_COUNTERS
process.cb = uint32(unsafe.Sizeof((process)))
GetProcessMemoryInfo := psapi.NewProc("GetProcessMemoryInfo")
_, _, err = GetProcessMemoryInfo.Call(uintptr(current), uintptr(unsafe.Pointer(&process)), unsafe.Sizeof(&process))
if err != nil {
fmt.Println(err)
} else {
fmt.Println(process)
}
}
报告这个错误:
The data area passed to a system call is too small
最佳答案
unsafe.Sizeof(&process)
返回指针的大小——变量process
占用的内存地址。
我想你想为此使用 unsafe.Sizeof(process)
。
关于c++ - 在golang调用DLL?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/36326870/