private void ProcessRenameNewName(PInvokeWin32.USN_RECORD usn, string volume, MyEverythingDB db)
{
// frn 没有改变
// newname = usn.FileName
// 根据usn.FRN可以从db中获取oldname
// db.update...
MyEverythingRecord newRecord = MyEverythingRecord.ParseUSN(usn);
string fullpath = newRecord.Name;
db.FindRecordPath(newRecord, ref fullpath, db.GetFolderSource(volume));
newRecord.FullPath = fullpath;
var oldRecord = db.FindByFrn(volume, usn.FRN);
string newname = newRecord.FullPath;
Debug.WriteLine(string.Format(">>>> RenameFile {0} to {1}", oldRecord.FullPath, newname));
db.UpdateRecord(volume, newRecord,
usn.IsFolder ? MyEverythingRecordType.Folder : MyEverythingRecordType.File);
if (RecordRenameEvent != null)
{
RecordRenameEvent(oldRecord, newRecord);
}
if (newname.Contains("$RECYCLE.BIN"))
{
Debug.WriteLine(string.Format(">>>> Means {0} moved to recycle.", oldRecord.FullPath));
}
}
public static MyEverythingRecord ParseUSN(string volume, PInvokeWin32.USN_RECORD usn)
{
return(new MyEverythingRecord {
FRN = usn.FRN, Name = usn.FileName,
ParentFrn = usn.ParentFRN, IsFolder = usn.IsFolder, VolumeName = volume
});
}
private void ProcessFileCreate(PInvokeWin32.USN_RECORD usn, string volume, MyEverythingDB db)
{
MyEverythingRecord record = MyEverythingRecord.ParseUSN(usn);
string fullpath = record.Name;
db.FindRecordPath(record, ref fullpath, db.GetFolderSource(volume));
record.FullPath = fullpath;
db.AddRecord(volume, record, usn.IsFolder ? MyEverythingRecordType.Folder : MyEverythingRecordType.File);
Debug.WriteLine(string.Format(">>>> NewFile: {0}", record.FullPath));
if (RecordAddedEvent != null)
{
RecordAddedEvent(record);
}
}
private void ProcessFileDelete(PInvokeWin32.USN_RECORD usn, string volume, MyEverythingDB db)
{
var cached = db.FindByFrn(volume, usn.FRN);
if (cached == null)
{
return;
}
else
{
var isdelete = db.DeleteRecord(volume, usn.FRN);
Debug.WriteLine(string.Format(">>>> File {0} deleted {1}.", cached.FullPath, isdelete ? "successful" : "fail"));
if (RecordDeletedEvent != null)
{
RecordDeletedEvent(cached);
}
}
}
unsafe private static void EnumerateFiles(string volumeName, IntPtr pVolume, IntPtr medBuffer, ref List <MyEverythingRecord> files, ref List <MyEverythingRecord> folders)
{
IntPtr pData = Marshal.AllocHGlobal(sizeof(UInt64) + 0x10000);
PInvokeWin32.ZeroMemory(pData, sizeof(UInt64) + 0x10000);
uint outBytesReturned = 0;
while (false != PInvokeWin32.DeviceIoControl(pVolume, PInvokeWin32.FSCTL_ENUM_USN_DATA, medBuffer,
sizeof(PInvokeWin32.MFT_ENUM_DATA), pData, sizeof(UInt64) + 0x10000, out outBytesReturned,
IntPtr.Zero))
{
IntPtr pUsnRecord = new IntPtr(pData.ToInt32() + sizeof(Int64));
while (outBytesReturned > 60)
{
PInvokeWin32.USN_RECORD usn = new PInvokeWin32.USN_RECORD(pUsnRecord);
if (usn.IsFolder)
{
folders.Add(new MyEverythingRecord {
Name = usn.FileName,
ParentFrn = usn.ParentFRN,
FRN = usn.FRN,
IsFolder = true, VolumeName = volumeName
});
}
else
{
files.Add(new MyEverythingRecord {
Name = usn.FileName,
ParentFrn = usn.ParentFRN,
FRN = usn.FRN,
IsFolder = false, VolumeName = volumeName
});
}
pUsnRecord = new IntPtr(pUsnRecord.ToInt32() + usn.RecordLength);
outBytesReturned -= usn.RecordLength;
}
Marshal.WriteInt64(medBuffer, Marshal.ReadInt64(pData, 0));
}
Marshal.FreeHGlobal(pData);
}
private void MonitorThread(object param)
{
MyEverythingDB db = (param as Dictionary <string, object>)["MyEverythingDB"] as MyEverythingDB;
string volume = (param as Dictionary <string, object>)["Volume"] as string;
IntPtr pbuffer = Marshal.AllocHGlobal(0x1000); // 构建输出参数
PInvokeWin32.READ_USN_JOURNAL_DATA rujd = SetupInputData4JournalRead(volume, 0xFFFFFFFF); // 对所有类型的reason都监听
UInt32 cbRead; // 用来存储实际输出的字节数
IntPtr prujd; // 指向输入参数结构体的指针
while (true)
{
// 构建输入参数的指针
prujd = Marshal.AllocHGlobal(Marshal.SizeOf(rujd));
PInvokeWin32.ZeroMemory(prujd, Marshal.SizeOf(rujd));
Marshal.StructureToPtr(rujd, prujd, true);
Debug.WriteLine(string.Format("\nMoniting on {0}......", volume));
IntPtr pVolume = MyEverything.GetVolumeJournalHandle(volume);
bool fok = PInvokeWin32.DeviceIoControl(pVolume,
PInvokeWin32.FSCTL_READ_USN_JOURNAL,
prujd, Marshal.SizeOf(typeof(PInvokeWin32.READ_USN_JOURNAL_DATA)),
pbuffer, 0x1000, out cbRead, IntPtr.Zero);
IntPtr pRealData = new IntPtr(pbuffer.ToInt32() + Marshal.SizeOf(typeof(Int64))); // 返回的内存块头上的8个字节是一个usn_id, 从第9个字节开始才是record.
uint offset = 0;
if (fok)
{
while (offset + Marshal.SizeOf(typeof(Int64)) < cbRead) // record可能有多个!
{
PInvokeWin32.USN_RECORD usn = new PInvokeWin32.USN_RECORD(new IntPtr(pRealData.ToInt32() + (int)offset));
ProcessUSN(usn, volume, db);
offset += usn.RecordLength;
}
}
Marshal.FreeHGlobal(prujd);
rujd.StartUsn = Marshal.ReadInt64(pbuffer); // 返回的内存块头上的8个字节就是用来在进行下一次查询的
}
}
private void ProcessUSN(PInvokeWin32.USN_RECORD usn, string volume, MyEverythingDB db)
{
var dbCached = db.FindByFrn(volume, usn.FRN);
Debug.WriteLine(string.Format("------USN[frn={0}]------", usn.FRN));
Debug.WriteLine(string.Format("FileName={0}, Reason={1}", usn.FileName, Reason.ReasonPrettyFormat(usn.Reason)));
Debug.WriteLine(string.Format("FileName[Cached]={0}", dbCached == null ? "NoCache": dbCached.FullPath));
Debug.WriteLine("--------------------------------------");
if (Util.MaskEqual(usn.Reason, Reason.USN_REASONS["USN_REASON_RENAME_NEW_NAME"]))
{
ProcessRenameNewName(usn, volume, db);
}
if ((usn.Reason & Reason.USN_REASONS["USN_REASON_FILE_CREATE"]) != 0)
{
ProcessFileCreate(usn, volume, db);
}
if (Util.MaskEqual(usn.Reason, Reason.USN_REASONS["USN_REASON_FILE_DELETE"]))
{
ProcessFileDelete(usn, volume, db);
}
}
private void MonitorThread(object param)
{
MyEverythingDB db = (param as Dictionary<string, object>)["MyEverythingDB"] as MyEverythingDB;
string volume = (param as Dictionary<string, object>)["Volume"] as string;
IntPtr pbuffer = Marshal.AllocHGlobal(0x1000); // 构建输出参数
PInvokeWin32.READ_USN_JOURNAL_DATA rujd = SetupInputData4JournalRead(volume, 0xFFFFFFFF); // 对所有类型的reason都监听
UInt32 cbRead; // 用来存储实际输出的字节数
IntPtr prujd; // 指向输入参数结构体的指针
while (true) {
// 构建输入参数的指针
prujd = Marshal.AllocHGlobal(Marshal.SizeOf(rujd));
PInvokeWin32.ZeroMemory(prujd, Marshal.SizeOf(rujd));
Marshal.StructureToPtr(rujd, prujd, true);
Debug.WriteLine(string.Format("\nMoniting on {0}......", volume));
IntPtr pVolume = MyEverything.GetVolumeJournalHandle(volume);
bool fok = PInvokeWin32.DeviceIoControl(pVolume,
PInvokeWin32.FSCTL_READ_USN_JOURNAL,
prujd, Marshal.SizeOf(typeof(PInvokeWin32.READ_USN_JOURNAL_DATA)),
pbuffer, 0x1000, out cbRead, IntPtr.Zero);
IntPtr pRealData = new IntPtr(pbuffer.ToInt32() + Marshal.SizeOf(typeof(Int64))); // 返回的内存块头上的8个字节是一个usn_id, 从第9个字节开始才是record.
uint offset = 0;
if (fok) {
while (offset + Marshal.SizeOf(typeof(Int64)) < cbRead) { // record可能有多个!
PInvokeWin32.USN_RECORD usn = new PInvokeWin32.USN_RECORD(new IntPtr(pRealData.ToInt32() + (int) offset));
ProcessUSN(usn, volume, db);
offset += usn.RecordLength;
}
}
Marshal.FreeHGlobal(prujd);
rujd.StartUsn = Marshal.ReadInt64(pbuffer); // 返回的内存块头上的8个字节就是用来在进行下一次查询的
}
}
private static unsafe void EnumerateFiles(string volumeName, IntPtr pVolume, IntPtr medBuffer, ref List<MyEverythingRecord> files, ref List<MyEverythingRecord> folders)
{
IntPtr pData = Marshal.AllocHGlobal(sizeof(UInt64) + 0x10000);
PInvokeWin32.ZeroMemory(pData, sizeof(UInt64) + 0x10000);
uint outBytesReturned = 0;
while (false != PInvokeWin32.DeviceIoControl(pVolume, PInvokeWin32.FSCTL_ENUM_USN_DATA, medBuffer,
sizeof(PInvokeWin32.MFT_ENUM_DATA), pData, sizeof(UInt64) + 0x10000, out outBytesReturned,
IntPtr.Zero)) {
IntPtr pUsnRecord = new IntPtr(pData.ToInt32() + sizeof(Int64));
while (outBytesReturned > 60) {
PInvokeWin32.USN_RECORD usn = new PInvokeWin32.USN_RECORD(pUsnRecord);
if (usn.IsFolder) {
folders.Add(new MyEverythingRecord {
Name = usn.FileName,
ParentFrn = usn.ParentFRN,
FRN = usn.FRN,
IsFolder = true, VolumeName = volumeName
});
} else {
files.Add(new MyEverythingRecord {
Name = usn.FileName,
ParentFrn = usn.ParentFRN,
FRN = usn.FRN,
IsFolder = false, VolumeName = volumeName
});
}
pUsnRecord = new IntPtr(pUsnRecord.ToInt32() + usn.RecordLength);
outBytesReturned -= usn.RecordLength;
}
Marshal.WriteInt64(medBuffer, Marshal.ReadInt64(pData, 0));
}
Marshal.FreeHGlobal(pData);
}
public static MyEverythingRecord ParseUSN(PInvokeWin32.USN_RECORD usn)
{
return(new MyEverythingRecord {
FRN = usn.FRN, Name = usn.FileName, ParentFrn = usn.ParentFRN
});
}
