Disk cache: Add a method to cancel pending sparse operations....

net/disk_cache/entry_impl.cc

 // Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/disk_cache/entry_impl.h"
 
 #include "base/histogram.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #include "net/base/io_buffer.h"
@@ skipping 366 matching lines @@
 }
 
 int EntryImpl::GetAvailableRange(int64 offset, int len, int64* start) {
   int result = InitSparseData();
   if (net::OK != result)
     return result;
 
   return sparse_->GetAvailableRange(offset, len, start);
 }
 
+void EntryImpl::CancelSparseIO() {
+  if (!sparse_.get())
+    return;
+
+  sparse_->CancelIO();
+}
+
+int EntryImpl::ReadyForSparseIO(net::CompletionCallback* completion_callback) {
+  if (!sparse_.get())
+    return net::OK;
+
+  return sparse_->ReadyToUse(completion_callback);
+}
+
 // ------------------------------------------------------------------------
 
 uint32 EntryImpl::GetHash() {
   return entry_.Data()->hash;
 }
 
 bool EntryImpl::CreateEntry(Addr node_address, const std::string& key,
                             uint32 hash) {
   Trace("Create entry In");
   EntryStore* entry_store = entry_.Data();
@@ skipping 507 matching lines @@
   Trace("%s 0x%p 0x%x 0x%x", msg, reinterpret_cast<void*>(this),
         entry_.address().value(), node_.address().value());
 
   Trace("  data: 0x%x 0x%x 0x%x", entry_.Data()->data_addr[0],
         entry_.Data()->data_addr[1], entry_.Data()->long_key);
 
   Trace("  doomed: %d 0x%x", doomed_, dirty);
 }
 
 }  // namespace disk_cache