startupcache/StartupCacheUtils.h
author Andreas Pehrson <pehrsons@gmail.com>
Mon, 24 Oct 2016 16:25:27 +0200
changeset 319711 2199f815eaa9478cc781bed08291162f20e59bd5
parent 285462 14e29cda9552844c1bf593df50ab85c555d345b3
permissions -rw-r--r--
Bug 1312234 - Wait for gUM capture messages when tearing off a tab. r=florian MozReview-Commit-ID: CaCt5C1whHw

/* -*-  Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsStartupCacheUtils_h_
#define nsStartupCacheUtils_h_

#include "nsIStorageStream.h"
#include "nsIObjectInputStream.h"
#include "nsIObjectOutputStream.h"
#include "mozilla/UniquePtr.h"

namespace mozilla {
namespace scache {

NS_EXPORT nsresult
NewObjectInputStreamFromBuffer(UniquePtr<char[]> buffer, uint32_t len, 
                               nsIObjectInputStream** stream);

// We can't retrieve the wrapped stream from the objectOutputStream later,
// so we return it here. We give callers in debug builds the option 
// to wrap the outputstream in a debug stream, which will detect if
// non-singleton objects are written out multiple times during a serialization.
// This could cause them to be deserialized incorrectly (as multiple copies
// instead of references).
NS_EXPORT nsresult
NewObjectOutputWrappedStorageStream(nsIObjectOutputStream **wrapperStream,
                                    nsIStorageStream** stream,
                                    bool wantDebugStream);

// Creates a buffer for storing the stream into the cache. The buffer is
// allocated with 'new []'.  After calling this function, the caller would
// typically call nsIStartupCache::PutBuffer with the returned buffer.
NS_EXPORT nsresult
NewBufferFromStorageStream(nsIStorageStream *storageStream, 
                           UniquePtr<char[]>* buffer, uint32_t* len);

NS_EXPORT nsresult
PathifyURI(nsIURI *in, nsACString &out);
} // namespace scache
} // namespace mozilla

#endif //nsStartupCacheUtils_h_