From 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 03:47:29 +0200 Subject: Adding upstream version 115.8.0esr. Signed-off-by: Daniel Baumann --- startupcache/StartupCacheUtils.h | 77 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 startupcache/StartupCacheUtils.h (limited to 'startupcache/StartupCacheUtils.h') diff --git a/startupcache/StartupCacheUtils.h b/startupcache/StartupCacheUtils.h new file mode 100644 index 0000000000..a59f0e4fac --- /dev/null +++ b/startupcache/StartupCacheUtils.h @@ -0,0 +1,77 @@ +/* -*- 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 "nsString.h" +#include "nsIStorageStream.h" +#include "nsIObjectInputStream.h" +#include "nsIObjectOutputStream.h" +#include "mozilla/UniquePtr.h" +#include "mozilla/UniquePtrExtensions.h" + +class nsIURI; + +namespace mozilla { +namespace scache { + +nsresult NewObjectInputStreamFromBuffer(const 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). +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 StartupCache::PutBuffer with the returned buffer. +nsresult NewBufferFromStorageStream(nsIStorageStream* storageStream, + UniqueFreePtr* buffer, + uint32_t* len); + +nsresult ResolveURI(nsIURI* in, nsIURI** out); + +// PathifyURI transforms uris into useful zip paths +// to make it easier to manipulate startup cache entries +// using standard zip tools. +// +// Transformations applied: +// * resource:// URIs are resolved to their corresponding file/jar URI to +// canonicalize resources URIs other than gre and app. +// * Paths under GRE or APP directory have their base path replaced with +// resource/gre or resource/app to avoid depending on install location. +// * jar:file:///path/to/file.jar!/sub/path urls are replaced with +// /path/to/file.jar/sub/path +// +// The result is concatenated with loaderType and stored into the string +// passed in. +// +// For example, in the js loader (loaderType = "jsloader"): +// resource://gre/modules/XPCOMUtils.sys.mjs or +// file://$GRE_DIR/modules/XPCOMUtils.sys.mjs or +// jar:file://$GRE_DIR/omni.jar!/modules/XPCOMUtils.sys.mjs becomes +// jsloader/resource/gre/modules/XPCOMUtils.sys.mjs +// file://$PROFILE_DIR/extensions/{uuid}/components/component.js becomes +// jsloader/$PROFILE_DIR/extensions/%7Buuid%7D/components/component.js +// jar:file://$PROFILE_DIR/extensions/some.xpi!/components/component.js becomes +// jsloader/$PROFILE_DIR/extensions/some.xpi/components/component.js +nsresult PathifyURI(const char* loaderType, size_t loaderTypeLength, nsIURI* in, + nsACString& out); + +template +nsresult PathifyURI(const char (&loaderType)[N], nsIURI* in, nsACString& out) { + return PathifyURI(loaderType, N - 1, in, out); +} + +} // namespace scache +} // namespace mozilla + +#endif // nsStartupCacheUtils_h_ -- cgit v1.2.3