53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 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 nsStaticAtom_h__
|
|
#define nsStaticAtom_h__
|
|
|
|
#include "nsIAtom.h"
|
|
#include "nsStringBuffer.h"
|
|
#include "mozilla/Logging.h"
|
|
|
|
typedef char16_t nsStaticAtomStringType;
|
|
|
|
#define NS_STATIC_ATOM(buffer_name, atom_ptr) { (nsStringBuffer*) &buffer_name, atom_ptr }
|
|
#define NS_STATIC_ATOM_BUFFER(buffer_name, str_data) static nsFakeStringBuffer< sizeof(str_data) > buffer_name = { 1, sizeof(str_data) * sizeof(nsStaticAtomStringType), MOZ_UTF16(str_data) };
|
|
|
|
/**
|
|
* Holds data used to initialize large number of atoms during startup. Use
|
|
* the above macros to initialize these structs. They should never be accessed
|
|
* directly other than from AtomTable.cpp
|
|
*/
|
|
struct nsStaticAtom
|
|
{
|
|
// mStringBuffer points to the string buffer for a permanent atom, and is
|
|
// therefore safe as a non-owning reference.
|
|
nsStringBuffer* MOZ_NON_OWNING_REF mStringBuffer;
|
|
nsIAtom** mAtom;
|
|
};
|
|
|
|
/**
|
|
* This is a struct with the same binary layout as a nsStringBuffer.
|
|
*/
|
|
template<uint32_t size>
|
|
struct nsFakeStringBuffer
|
|
{
|
|
int32_t mRefCnt;
|
|
uint32_t mSize;
|
|
nsStaticAtomStringType mStringData[size];
|
|
};
|
|
|
|
// Register an array of static atoms with the atom table
|
|
template<uint32_t N>
|
|
nsresult
|
|
NS_RegisterStaticAtoms(const nsStaticAtom (&aAtoms)[N])
|
|
{
|
|
extern nsresult RegisterStaticAtoms(const nsStaticAtom*, uint32_t aAtomCount);
|
|
return RegisterStaticAtoms(aAtoms, N);
|
|
}
|
|
|
|
#endif
|