zsyscall_windows.go

Documentation: github.com/Microsoft/go-winio/pkg/process

     1  //go:build windows
     2  
     3  // Code generated by 'go generate' using "github.com/Microsoft/go-winio/tools/mkwinsyscall"; DO NOT EDIT.
     4  
     5  package process
     6  
     7  import (
     8  	"syscall"
     9  	"unsafe"
    10  
    11  	"golang.org/x/sys/windows"
    12  )
    13  
    14  var _ unsafe.Pointer
    15  
    16  // Do the interface allocations only once for common
    17  // Errno values.
    18  const (
    19  	errnoERROR_IO_PENDING = 997
    20  )
    21  
    22  var (
    23  	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
    24  	errERROR_EINVAL     error = syscall.EINVAL
    25  )
    26  
    27  // errnoErr returns common boxed Errno values, to prevent
    28  // allocations at runtime.
    29  func errnoErr(e syscall.Errno) error {
    30  	switch e {
    31  	case 0:
    32  		return errERROR_EINVAL
    33  	case errnoERROR_IO_PENDING:
    34  		return errERROR_IO_PENDING
    35  	}
    36  	// TODO: add more here, after collecting data on the common
    37  	// error values see on Windows. (perhaps when running
    38  	// all.bat?)
    39  	return e
    40  }
    41  
    42  var (
    43  	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
    44  
    45  	procK32EnumProcesses           = modkernel32.NewProc("K32EnumProcesses")
    46  	procK32GetProcessMemoryInfo    = modkernel32.NewProc("K32GetProcessMemoryInfo")
    47  	procQueryFullProcessImageNameW = modkernel32.NewProc("QueryFullProcessImageNameW")
    48  )
    49  
    50  func enumProcesses(pids *uint32, bufferSize uint32, retBufferSize *uint32) (err error) {
    51  	r1, _, e1 := syscall.Syscall(procK32EnumProcesses.Addr(), 3, uintptr(unsafe.Pointer(pids)), uintptr(bufferSize), uintptr(unsafe.Pointer(retBufferSize)))
    52  	if r1 == 0 {
    53  		err = errnoErr(e1)
    54  	}
    55  	return
    56  }
    57  
    58  func getProcessMemoryInfo(process handle, memCounters *ProcessMemoryCountersEx, size uint32) (err error) {
    59  	r1, _, e1 := syscall.Syscall(procK32GetProcessMemoryInfo.Addr(), 3, uintptr(process), uintptr(unsafe.Pointer(memCounters)), uintptr(size))
    60  	if r1 == 0 {
    61  		err = errnoErr(e1)
    62  	}
    63  	return
    64  }
    65  
    66  func queryFullProcessImageName(process handle, flags uint32, buffer *uint16, bufferSize *uint32) (err error) {
    67  	r1, _, e1 := syscall.Syscall6(procQueryFullProcessImageNameW.Addr(), 4, uintptr(process), uintptr(flags), uintptr(unsafe.Pointer(buffer)), uintptr(unsafe.Pointer(bufferSize)), 0, 0)
    68  	if r1 == 0 {
    69  		err = errnoErr(e1)
    70  	}
    71  	return
    72  }
    73
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