func (o *openFileHandle) Write(request *fuse.WriteRequest, response *fuse.WriteResponse, intr fs.Intr) fuse.Error {
log.Printf("Request: %+v\nObject: %+v", request, o)
start := request.Offset
writeData := request.Data
if writeData == nil {
return fuse.ENOENT
}
lenData := int(start) + (len(writeData))
if lenData > int(len(o.buffer)) {
//set length and capacity of buffer
var newbfr = make([]byte, (lenData), (lenData))
copy(newbfr, o.buffer)
response.Size = copy(newbfr[start:lenData], writeData)
//log.Printf("before copying to o.buffer: %s", newbfr)
o.buffer = newbfr
} else {
num := copy(o.buffer[start:lenData], writeData)
response.Size = num
}
log.Printf("Buffer: %s", o.buffer)
log.Printf("write response size: %v", response.Size)
return nil
}
func (h *handle) Write(ctx context.Context, request *fuse.WriteRequest, response *fuse.WriteResponse) (retErr error) {
defer func() {
if retErr == nil {
protolion.Debug(&FileWrite{&h.f.Node, string(request.Data), request.Offset, errorToString(retErr)})
} else {
protolion.Error(&FileWrite{&h.f.Node, string(request.Data), request.Offset, errorToString(retErr)})
}
}()
if h.w == nil {
w, err := h.f.fs.apiClient.PutFileWriter(
h.f.File.Commit.Repo.Name, h.f.File.Commit.ID, h.f.File.Path, h.f.delimiter(), h.f.fs.handleID)
if err != nil {
return err
}
h.w = w
}
// repeated is how many bytes in this write have already been sent in
// previous call to Write. Why does the OS send us the same data twice in
// different calls? Good question, this is a behavior that's only been
// observed on osx, not on linux.
repeated := h.cursor - int(request.Offset)
if repeated < 0 {
return fmt.Errorf("gap in bytes written, (OpenNonSeekable should make this impossible)")
}
written, err := h.w.Write(request.Data[repeated:])
if err != nil {
return err
}
response.Size = written + repeated
h.cursor += written
if h.f.size < request.Offset+int64(written) {
h.f.size = request.Offset + int64(written)
}
return nil
}
func (w *Writes) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
n, err := w.buf.Write(req.Data)
resp.Size = n
if err != nil {
return err
}
return nil
}
func (fh *FileHandle) Write(req *fuse.WriteRequest, resp *fuse.WriteResponse, intr fs.Intr) fuse.Error {
fmt.Printf("Write %s - %d at %d\n", fh.FileRef.Path, len(req.Data), req.Offset)
size, err := fh.File.WriteAt(req.Data, req.Offset)
resp.Size = size
return err
}
func (w *Writes) Write(req *fuse.WriteRequest, resp *fuse.WriteResponse, intr fs.Intr) fuse.Error {
n, err := w.buf.Write(req.Data)
resp.Size = n
if err != nil {
// TODO hiding error
return fuse.EIO
}
return nil
}
func (file *consulFile) bufferWrite(req *fuse.WriteRequest, resp *fuse.WriteResponse) bool {
file.Mutex.Lock()
defer file.Mutex.Unlock()
if !file.Deleted {
return false
}
file.Buf = doWrite(req.Offset, req.Data, file.Buf)
resp.Size = len(req.Data)
return true
}
func (f *file) Write(ctx context.Context, request *fuse.WriteRequest, response *fuse.WriteResponse) error {
written, err := pfsutil.PutFile(f.fs.apiClient, f.fs.repositoryName, f.commitID, f.path, request.Offset, bytes.NewReader(request.Data))
if err != nil {
return err
}
response.Size = written
if f.size < request.Offset+int64(written) {
f.size = request.Offset + int64(written)
}
return nil
}
// Write implements the fs.HandleWriter interface for ResetCachesFile.
func (f *ResetCachesFile) Write(ctx context.Context, req *fuse.WriteRequest,
resp *fuse.WriteResponse) (err error) {
f.fs.log.CDebugf(ctx, "ResetCachesFile Write")
defer func() { f.fs.reportErr(ctx, libkbfs.WriteMode, err) }()
if len(req.Data) == 0 {
return nil
}
f.fs.config.ResetCaches()
resp.Size = len(req.Data)
return nil
}
func (f File) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
lock.Lock()
defer lock.Unlock()
log.Debug("Write(%s,%d)", f.GetPath(), len(req.Data))
data := req.Data
bo := uint64(req.Offset) / f.Fs.blockSize
ro := uint64(req.Offset) % f.Fs.blockSize
var written uint64 = 0
var toWriteInTheFirstBlock = f.Fs.blockSize - ro
if toWriteInTheFirstBlock > uint64(len(data)) {
toWriteInTheFirstBlock = uint64(len(data))
}
if ro > 0 {
block, err := f.getBlock(int(bo + 1))
if err != nil {
return err
}
log.Debug(">> write-chunk.1:%d[%d:%d]", bo+1, 0, toWriteInTheFirstBlock)
if err := f.setBlock(int(bo+1), append(block[0:ro], data[:toWriteInTheFirstBlock]...)); err != nil {
return err
}
bo = bo + 1
written = uint64(toWriteInTheFirstBlock)
}
var i = 0
for len(data)-int(written)-int(f.Fs.blockSize) >= int(f.Fs.blockSize) {
log.Debug(">> write-chunk.2:%d[%d:%d]; rem=%d", int(bo)+1+i, written, written+f.Fs.blockSize, uint64(len(data))-written)
err := f.setBlock(int(bo)+1+i, data[written:written+f.Fs.blockSize])
if err != nil {
return err
}
written += f.Fs.blockSize
i += 1
}
if len(data)-int(written) > 0 {
log.Debug(">> write-chunk.3:%d[%d:%d]", int(bo)+1+i, written, len(data))
err := f.setBlock(int(bo)+1+i, data[written:])
if err != nil {
return err
}
written = uint64(len(data))
}
err := f.doTruncate(uint64(req.Offset) + uint64(len(req.Data)))
if err != nil {
log.Error(err.Error())
return err
}
resp.Size = int(written)
return f.set_mtime()
}
func (h *Handle) Write(req *fuse.WriteRequest, resp *fuse.WriteResponse, intr fs.Intr) fuse.Error {
n, err := h.sink.Write(req.Data)
resp.Size = n
h.File.Written(n)
if err == nil {
return nil
} else {
log.Println("ERROR writing chunk:", err)
return fuse.EIO
}
}
func (f *file) Write(req *fuse.WriteRequest, resp *fuse.WriteResponse, intr fs.Intr) fuse.Error {
f.parent.fs.mu.Lock()
defer f.parent.fs.mu.Unlock()
n, err := f.blob.WriteAt(req.Data, req.Offset)
resp.Size = n
if err != nil {
log.Printf("write error: %v", err)
return fuse.EIO
}
return nil
}
// Write pushes data to a swift object.
// If we detect that we are writing more data than the configured
// segment size, then the first object we were writing to is moved
// to the segment container and named accordingly to DLO conventions.
// Remaining data will be split into segments sequentially until
// file handle release is called. If we are overwriting an object
// we handle segment deletion, and object creation.
func (fh *ObjectHandle) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) (err error) {
// Truncate the file if :
// - this is the first write after creation
// - this is the first write after opening an existing file
if !fh.create && !fh.truncated ||
fh.create && !fh.target.writing {
if err := fh.truncate(); err != nil {
return err
}
}
// Now that we are writing to this file, make sure no lock can
// be acquired until :
// - all write operations have been processed
// - this filehandle has been freed
fh.target.writing = true
// Write first segment or file with size smaller than a segment size.
if fh.uploaded+uint64(len(req.Data)) <= uint64(SegmentSize) {
if _, err := fh.wd.Write(req.Data); err != nil {
return err
}
fh.uploaded += uint64(len(req.Data))
fh.target.so.Bytes += int64(len(req.Data))
goto EndWrite
}
// Data written on this writer will be larger than a segment size.
// Close current object, move it to the segment container if this
// is the first time this happens, then open the next segment and
// start writing to it.
if fh.uploaded+uint64(len(req.Data)) > uint64(SegmentSize) {
// Close current segment
if !fh.wroteSegment {
if err := fh.moveToSegment(); err != nil {
return err
}
}
fh.wd.Close()
// Open next segment
fh.wd, err = initSegment(fh.target.cs.Name, fh.segmentPrefix, &fh.segmentID, fh.target.so, req.Data, &fh.uploaded)
if err != nil {
return err
}
goto EndWrite
}
EndWrite:
resp.Size = len(req.Data)
return nil
}
// Write implements the fs.HandleWriter interface for File.
func (f *File) Write(ctx context.Context, req *fuse.WriteRequest,
resp *fuse.WriteResponse) (err error) {
f.folder.fs.log.CDebugf(ctx, "File Write sz=%d ", len(req.Data))
defer func() { f.folder.reportErr(ctx, libkbfs.WriteMode, err) }()
if err := f.folder.fs.config.KBFSOps().Write(
ctx, f.node, req.Data, req.Offset); err != nil {
return err
}
resp.Size = len(req.Data)
return nil
}
func (f *FuseDevice) Write(fReq *fuse.WriteRequest, fResp *fuse.WriteResponse,
i fs.Intr) fuse.Error {
println("write request, datasize: ", len(fReq.Data))
// FIXME: handle aborted writes
req := newWriteReq(fReq.Data)
f.device.writeReqs <- req
err := <-(*req).response
if err == nil {
fResp.Size = len(fReq.Data)
}
println("return on write: ", err)
return err
}
// Write implements the HandleWriter interface. It is called on *every* write (DirectIO
// mode) to allow this module to handle consistency itself. Current strategy is to read
// the file, change the written portions, then write it back atomically. If the key was
// updated between the read and the write, try again.
func (file *consulFile) Write(
ctx context.Context,
req *fuse.WriteRequest,
resp *fuse.WriteResponse,
) error {
for attempts := 0; attempts < MaxWriteAttempts; attempts++ {
if file.bufferWrite(req, resp) {
return nil
}
pair, _, err := file.ConsulFS.Consul.Get(ctx, file.Key, nil)
if file.bufferWrite(req, resp) {
return nil
}
if err == ErrCanceled {
return fuse.EINTR
} else if err != nil {
file.ConsulFS.Logger.WithFields(logrus.Fields{
"key": file.Key,
logrus.ErrorKey: err,
}).Error("consul read error")
return fuse.EIO
}
if pair == nil {
return fuse.ENOENT
}
pair.Value = doWrite(req.Offset, req.Data, pair.Value)
// Write it back!
success, _, err := file.ConsulFS.Consul.CAS(ctx, pair, nil)
if file.bufferWrite(req, resp) {
return nil
}
if err == ErrCanceled {
return fuse.EINTR
} else if err != nil {
file.ConsulFS.Logger.WithFields(logrus.Fields{
"key": file.Key,
logrus.ErrorKey: err,
}).Error("consul write error")
return fuse.EIO
}
if success {
resp.Size = len(req.Data)
return nil
}
file.ConsulFS.Logger.WithField("key", file.Key).Warning("write did not succeed")
}
file.ConsulFS.Logger.WithField("key", file.Key).Error("unable to perform timely write; aborting")
return fuse.EIO
}
func (fh FileHandle) Write(ctx context.Context, req *bfuse.WriteRequest, resp *bfuse.WriteResponse) error {
log.Printf("Write offset %d size %d", req.Offset, len(req.Data))
if fh.h == nil {
return EBADF
}
if err := fh.h.PWrite(req.Offset, req.Data); err != nil {
return err
}
resp.Size = len(req.Data)
return nil
}
func (f *file) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
f.mu.Lock()
defer f.mu.Unlock()
f.dirty = dirty
n, err := f.blob.WriteAt(req.Data, req.Offset)
resp.Size = n
if err != nil {
log.Printf("write error: %v", err)
return fuse.EIO
}
return nil
}
func (f *file) Write(ctx context.Context, request *fuse.WriteRequest, response *fuse.WriteResponse) (retErr error) {
defer func() {
protolog.Info(&FileWrite{&f.Node, errorToString(retErr)})
}()
written, err := pfsutil.PutFile(f.fs.apiClient, f.File.Commit.Repo.Name, f.File.Commit.Id, f.File.Path, request.Offset, bytes.NewReader(request.Data))
if err != nil {
return err
}
response.Size = written
if f.size < request.Offset+int64(written) {
f.size = request.Offset + int64(written)
}
return nil
}
// Write implements the fs.HandleWriter interface for RekeyFile.
func (f *RekeyFile) Write(ctx context.Context, req *fuse.WriteRequest,
resp *fuse.WriteResponse) (err error) {
f.folder.fs.log.CDebugf(ctx, "RekeyFile Write")
defer func() { f.folder.reportErr(ctx, libkbfs.WriteMode, err) }()
if len(req.Data) == 0 {
return nil
}
err = f.folder.fs.config.KBFSOps().Rekey(ctx, f.folder.getFolderBranch().Tlf)
if err != nil {
return err
}
f.folder.fs.NotificationGroupWait()
resp.Size = len(req.Data)
return nil
}
// Write implements the fs.HandleWriter interface for RekeyFile.
func (f *RekeyFile) Write(ctx context.Context, req *fuse.WriteRequest,
resp *fuse.WriteResponse) (err error) {
ctx = NewContextWithOpID(ctx, f.folder.fs.log)
f.folder.fs.log.CDebugf(ctx, "RekeyFile Write")
defer func() { f.folder.fs.reportErr(ctx, err) }()
if len(req.Data) == 0 {
return nil
}
err = f.folder.fs.config.KBFSOps().Rekey(ctx, f.folder.folderBranch.Tlf)
if err != nil {
return err
}
resp.Size = len(req.Data)
return nil
}
// Write implements the fs.HandleWriter interface for
// ReclaimQuotaFile. Note a write triggers quota reclamation, but
// does not wait for it to finish. If you want to wait, write to
// SyncFromServerFileName.
func (f *ReclaimQuotaFile) Write(ctx context.Context, req *fuse.WriteRequest,
resp *fuse.WriteResponse) (err error) {
f.folder.fs.log.CDebugf(ctx, "ReclaimQuotaFile Write")
defer func() { f.folder.reportErr(ctx, libkbfs.WriteMode, err) }()
if len(req.Data) == 0 {
return nil
}
err = libkbfs.ForceQuotaReclamationForTesting(
f.folder.fs.config, f.folder.getFolderBranch())
if err != nil {
return err
}
resp.Size = len(req.Data)
return nil
}
// Write implements the fs.HandleWriter interface for UnstageFile.
func (f *UnstageFile) Write(ctx context.Context, req *fuse.WriteRequest,
resp *fuse.WriteResponse) (err error) {
f.folder.fs.log.CDebugf(ctx, "UnstageFile Write")
defer func() { f.folder.reportErr(ctx, libkbfs.WriteMode, err) }()
if len(req.Data) == 0 {
return nil
}
err = f.folder.fs.config.KBFSOps().
UnstageForTesting(ctx, f.folder.getFolderBranch())
if err != nil {
return err
}
resp.Size = len(req.Data)
return nil
}
func (h *mutFileHandle) Write(ctx context.Context, req *fuse.WriteRequest, res *fuse.WriteResponse) error {
if h.tmp == nil {
log.Printf("Write called on camli mutFileHandle without a tempfile set")
return fuse.EIO
}
n, err := h.tmp.WriteAt(req.Data, req.Offset)
log.Printf("mutFileHandle.Write(%q, %d bytes at %d, flags %v) = %d, %v",
h.f.fullPath(), len(req.Data), req.Offset, req.Flags, n, err)
if err != nil {
log.Println("mutFileHandle.Write:", err)
return fuse.EIO
}
res.Size = n
h.f.setSizeAtLeast(req.Offset + int64(n))
return nil
}
// HandleWriter
func (f *File) Write(req *fuse.WriteRequest, resp *fuse.WriteResponse, intr fs.Intr) fuse.Error {
f.mu.Lock()
defer f.mu.Unlock()
newLen := req.Offset + int64(len(req.Data))
if newLen > int64(maxInt) {
return fuse.Errno(syscall.EFBIG)
}
n := copy(f.data[req.Offset:], req.Data)
if n < len(req.Data) {
f.data = append(f.data, req.Data[n:]...)
}
resp.Size = len(req.Data)
return nil
}
func (f *File) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
f.mu.Lock()
defer f.mu.Unlock()
// expand the buffer if necessary
newLen := req.Offset + int64(len(req.Data))
if newLen > int64(maxInt) {
return fuse.Errno(syscall.EFBIG)
}
if newLen := int(newLen); newLen > len(f.data) {
f.data = append(f.data, make([]byte, newLen-len(f.data))...)
}
n := copy(f.data[req.Offset:], req.Data)
resp.Size = n
return nil
}
// Write implements the fs.HandleWriter interface for UpdatesFile.
func (f *UpdatesFile) Write(ctx context.Context, req *fuse.WriteRequest,
resp *fuse.WriteResponse) (err error) {
ctx = NewContextWithOpID(ctx, f.folder.fs.log)
f.folder.fs.log.CDebugf(ctx, "UpdatesFile (enable: %t) Write", f.enable)
defer func() { f.folder.fs.reportErr(ctx, err) }()
if len(req.Data) == 0 {
return nil
}
f.folder.updateMu.Lock()
defer f.folder.updateMu.Unlock()
if f.enable {
if f.folder.updateChan == nil {
return errors.New("Updates are already enabled")
}
err = libkbfs.RestartCRForTesting(f.folder.fs.config,
f.folder.folderBranch)
if err != nil {
return err
}
f.folder.updateChan <- struct{}{}
close(f.folder.updateChan)
f.folder.updateChan = nil
} else {
if f.folder.updateChan != nil {
return errors.New("Updates are already disabled")
}
f.folder.updateChan, err =
libkbfs.DisableUpdatesForTesting(f.folder.fs.config,
f.folder.folderBranch)
if err != nil {
return err
}
err = libkbfs.DisableCRForTesting(f.folder.fs.config,
f.folder.folderBranch)
if err != nil {
return err
}
}
resp.Size = len(req.Data)
return nil
}
func (f *File) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
f.Lock()
defer f.Unlock()
log.Printf("(*File) Write, req=%q, path=%s", req, filepath.Base(f.path))
if f.handler == nil {
log.Println("Write: File should be open, aborting request")
return fuse.ENOTSUP
}
n, err := f.handler.WriteAt(req.Data, req.Offset)
if err != nil {
log.Println("Write ERR: ", err)
return err
}
resp.Size = n
return nil
}
func (fh *FileHandle) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
glog.Infof("Entered Write\n")
//TODO: Check if we need to add something here for playlists and drop directories.
if fh.r == nil {
if fh.f.name == ".description" {
glog.Errorf("Not allowed to write description file.\n")
//TODO: Allow to write description
return nil
}
return fuse.EIO
}
glog.Infof("Writing file: %s.\n", fh.r.Name())
if _, err := fh.r.Seek(req.Offset, 0); err != nil {
return err
}
n, err := fh.r.Write(req.Data)
resp.Size = n
return err
}
// Write data to the file handle
func (fh *WriteFileHandle) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
fs.Debug(fh.remote, "WriteFileHandle.Write len=%d", len(req.Data))
fh.mu.Lock()
defer fh.mu.Unlock()
if fh.closed {
fs.ErrorLog(fh.remote, "WriteFileHandle.Write error: %v", errClosedFileHandle)
return errClosedFileHandle
}
fh.writeCalled = true
// FIXME should probably check the file isn't being seeked?
n, err := fh.pipeWriter.Write(req.Data)
resp.Size = n
fh.file.written(int64(n))
if err != nil {
fs.ErrorLog(fh.remote, "WriteFileHandle.Write error: %v", err)
return err
}
fs.Debug(fh.remote, "WriteFileHandle.Write OK (%d bytes written)", n)
return nil
}
// Write implements the fs.HandleWriter interface for SyncFromServerFile.
func (f *SyncFromServerFile) Write(ctx context.Context, req *fuse.WriteRequest,
resp *fuse.WriteResponse) (err error) {
f.folder.fs.log.CDebugf(ctx, "SyncFromServerFile Write")
defer func() { f.folder.reportErr(ctx, libkbfs.WriteMode, err) }()
if len(req.Data) == 0 {
return nil
}
// Use a context with a nil CtxAppIDKey value so that
// notifications generated from this sync won't be discarded.
syncCtx := context.WithValue(ctx, CtxAppIDKey, nil)
err = f.folder.fs.config.KBFSOps().SyncFromServerForTesting(
syncCtx, f.folder.getFolderBranch())
if err != nil {
return err
}
f.folder.fs.NotificationGroupWait()
resp.Size = len(req.Data)
return nil
}
