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9d2a708f22
This saves 128 KiB of memory per process. It requires putting the eTLD entries in sorted order. --HG-- extra : rebase_source : 96678fcd91089a5151760dcced77e459bcbd4821
99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
//* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef EffectiveTLDService_h
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#define EffectiveTLDService_h
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#include "nsIEffectiveTLDService.h"
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#include "nsIMemoryReporter.h"
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#include "nsString.h"
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#include "nsCOMPtr.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/BinarySearch.h"
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#include "mozilla/MemoryReporting.h"
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class nsIIDNService;
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// struct for static data generated from effective_tld_names.dat
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struct ETLDEntry {
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friend class nsEffectiveTLDService;
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public:
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bool IsNormal() const { return wild || !exception; }
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bool IsException() const { return exception; }
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bool IsWild() const { return wild; }
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const char* GetEffectiveTLDName() const
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{
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return strings.strtab + strtab_index;
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}
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static const ETLDEntry* GetEntry(const char* aDomain);
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static const size_t ETLD_ENTRY_N_INDEX_BITS = 30;
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// These fields must be public to allow static construction.
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uint32_t strtab_index : ETLD_ENTRY_N_INDEX_BITS;
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uint32_t exception : 1;
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uint32_t wild : 1;
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private:
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struct Cmp {
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int operator()(const ETLDEntry aEntry) const
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{
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return strcmp(mName, aEntry.GetEffectiveTLDName());
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}
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explicit Cmp(const char* aName) : mName(aName) {}
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const char* mName;
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};
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#define ETLD_STR_NUM_1(line) str##line
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#define ETLD_STR_NUM(line) ETLD_STR_NUM_1(line)
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struct etld_string_list {
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#define ETLD_ENTRY(name, ex, wild) char ETLD_STR_NUM(__LINE__)[sizeof(name)];
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#include "etld_data.inc"
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#undef ETLD_ENTRY
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};
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// This static string table is all the eTLD domain names packed together.
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static const union etld_strings {
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struct etld_string_list list;
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char strtab[1];
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} strings;
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// This is the static entries table. Each entry has an index into the string
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// table. The entries are in sorted order so that binary search can be used.
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static const ETLDEntry entries[];
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void FuncForStaticAsserts(void);
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#undef ETLD_STR_NUM
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#undef ETLD_STR_NUM1
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};
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class nsEffectiveTLDService final
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: public nsIEffectiveTLDService
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, public nsIMemoryReporter
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIEFFECTIVETLDSERVICE
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NS_DECL_NSIMEMORYREPORTER
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nsEffectiveTLDService();
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nsresult Init();
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf);
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private:
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nsresult GetBaseDomainInternal(nsCString &aHostname, int32_t aAdditionalParts, nsACString &aBaseDomain);
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nsresult NormalizeHostname(nsCString &aHostname);
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~nsEffectiveTLDService();
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nsCOMPtr<nsIIDNService> mIDNService;
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};
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#endif // EffectiveTLDService_h
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