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make a copy of request data

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to avoid concurrency issues
This commit is contained in:
Chris Lu 2020-04-08 22:31:19 -07:00
parent 00b993a234
commit 006f78b70b
1 changed files with 9 additions and 5 deletions
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14
weed/filesys/filehandle.go
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@ -114,21 +114,23 @@ func (fh *FileHandle) readFromChunks(buff []byte, offset int64) (int64, error) {
func (fh *FileHandle) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
// write the request to volume servers
data := make([]byte, len(req.Data))
copy(data, req.Data)
fh.f.entry.Attributes.FileSize = uint64(max(req.Offset+int64(len(req.Data)), int64(fh.f.entry.Attributes.FileSize)))
fh.f.entry.Attributes.FileSize = uint64(max(req.Offset+int64(len(data)), int64(fh.f.entry.Attributes.FileSize)))
// glog.V(0).Infof("%v write [%d,%d)", fh.f.fullpath(), req.Offset, req.Offset+int64(len(req.Data)))
chunks, err := fh.dirtyPages.AddPage(req.Offset, req.Data)
chunks, err := fh.dirtyPages.AddPage(req.Offset, data)
if err != nil {
glog.Errorf("%v write fh %d: [%d,%d): %v", fh.f.fullpath(), fh.handle, req.Offset, req.Offset+int64(len(req.Data)), err)
glog.Errorf("%v write fh %d: [%d,%d): %v", fh.f.fullpath(), fh.handle, req.Offset, req.Offset+int64(len(data)), err)
return fuse.EIO
}
resp.Size = len(req.Data)
resp.Size = len(data)
if req.Offset == 0 {
// detect mime type
detectedMIME := mimetype.Detect(req.Data)
detectedMIME := mimetype.Detect(data)
fh.contentType = detectedMIME.String()
if ext := path.Ext(fh.f.Name); ext != detectedMIME.Extension() {
fh.contentType = mime.TypeByExtension(ext)
@ -159,6 +161,8 @@ func (fh *FileHandle) Release(ctx context.Context, req *fuse.ReleaseRequest) err
}
fh.f.entryViewCache = nil
fh.f.reader = nil
fh.dirtyPages = nil
fh.f = nil
return nil
}