caps/DomainPolicy.h
author Nicholas Nethercote <nnethercote@mozilla.com>
Wed, 12 Jul 2017 15:13:37 +1000
changeset 419917 129793760f2d718ed61ba17d9aacd57c7ec6785b
parent 303345 e8c7dfe727cd970e2c3294934e2927b14143c205
child 503000 f3a78d65b0590610e4f863db4dce834303fc8b94
permissions -rw-r--r--
Bug 1380227 - Avoid many UTF16toUTF8 and UTF8toUTF16 conversions in nsStringBundle. r=emk. Most of the names passed to nsIStringBundle::{Get,Format}StringFromUTF8Name have one of the two following forms: - a 16-bit C string literal, which is then converted to an 8-bit string in order for the lookup to occur; - an 8-bit C string literal converted to a 16-bit string, which is then converted back to an 8-bit string in order for the lookup to occur. This patch introduces and uses alternative methods that can take an 8-bit C string literal, which requires changing some signatures in other methods and functions. It replaces all C++ uses of the old methods. The patch also changes the existing {Get,Format}StringFromName() methods so they take an AUTF8String argument for the name instead of a wstring, because that's nicer for JS code. Even though there is a method for C++ code and a different one for JS code, |binaryname| is used so that the existing method names can be used for the common case in both languages. The change reduces the number of NS_ConvertUTF8toUTF16 and NS_ConvertUTF16toUTF8 conversions while running Speedometer v2 from ~270,000 to ~160,000. (Most of these conversions involved the string "deprecatedReferrerDirective" in nsCSPParser.cpp.)

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set ts=8 sts=4 et sw=4 tw=80: */
/* 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 DomainPolicy_h__
#define DomainPolicy_h__

#include "nsIDomainPolicy.h"
#include "nsTHashtable.h"
#include "nsURIHashKey.h"

namespace mozilla {

namespace ipc {
class URIParams;
} // namespace ipc

enum DomainSetChangeType{
    ACTIVATE_POLICY,
    DEACTIVATE_POLICY,
    ADD_DOMAIN,
    REMOVE_DOMAIN,
    CLEAR_DOMAINS
};

enum DomainSetType{
    NO_TYPE,
    BLACKLIST,
    SUPER_BLACKLIST,
    WHITELIST,
    SUPER_WHITELIST
};

class DomainSet final : public nsIDomainSet
{
public:
    NS_DECL_ISUPPORTS
    NS_DECL_NSIDOMAINSET

    explicit DomainSet(DomainSetType aType)
        : mType(aType)
    {}

    void CloneSet(InfallibleTArray<mozilla::ipc::URIParams>* aDomains);

protected:
    virtual ~DomainSet() {}
    nsTHashtable<nsURIHashKey> mHashTable;
    DomainSetType mType;
};

class DomainPolicy final : public nsIDomainPolicy
{
public:
    NS_DECL_ISUPPORTS
    NS_DECL_NSIDOMAINPOLICY
    DomainPolicy();

private:
    virtual ~DomainPolicy();

    RefPtr<DomainSet> mBlacklist;
    RefPtr<DomainSet> mSuperBlacklist;
    RefPtr<DomainSet> mWhitelist;
    RefPtr<DomainSet> mSuperWhitelist;
};

} /* namespace mozilla */

#endif /* DomainPolicy_h__ */