src/webkit/browser/fileapi/quota/open_file_handle.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "webkit/browser/fileapi/quota/open_file_handle.h"
   6
   7 #include "webkit/browser/fileapi/quota/open_file_handle_context.h"
   8 #include "webkit/browser/fileapi/quota/quota_reservation.h"
   9
  10 namespace fileapi {
  11
  12 OpenFileHandle::~OpenFileHandle() {
  13   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
  14 }
  15
  16 void OpenFileHandle::UpdateMaxWrittenOffset(int64 offset) {
  17   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
  18
  19   int64 growth = context_->UpdateMaxWrittenOffset(offset);
  20   if (growth > 0)
  21     reservation_->ConsumeReservation(growth);
  22 }
  23
  24 void OpenFileHandle::AddAppendModeWriteAmount(int64 amount) {
  25   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
  26   if (amount <= 0)
  27     return;
  28
  29   context_->AddAppendModeWriteAmount(amount);
  30   reservation_->ConsumeReservation(amount);
  31 }
  32
  33 int64 OpenFileHandle::GetEstimatedFileSize() const {
  34   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
  35   return context_->GetEstimatedFileSize();
  36 }
  37
  38 int64 OpenFileHandle::GetMaxWrittenOffset() const {
  39   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
  40   return context_->GetMaxWrittenOffset();
  41 }
  42
  43 const base::FilePath& OpenFileHandle::platform_path() const {
  44   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
  45   return context_->platform_path();
  46 }
  47
  48 OpenFileHandle::OpenFileHandle(QuotaReservation* reservation,
  49                                OpenFileHandleContext* context)
  50     : reservation_(reservation),
  51       context_(context) {
  52   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
  53 }
  54
  55 }  // namespace fileapi