gecko-dev/netwerk/cache2/CacheHashUtils.h

70 строки
1.8 KiB
C++

/* 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 CacheHashUtils__h__
#define CacheHashUtils__h__
#include "nsISupports.h"
#include "mozilla/Types.h"
#include "prnetdb.h"
#include "nsPrintfCString.h"
#define LOGSHA1(x) \
PR_htonl((reinterpret_cast<const uint32_t*>(x))[0]), \
PR_htonl((reinterpret_cast<const uint32_t*>(x))[1]), \
PR_htonl((reinterpret_cast<const uint32_t*>(x))[2]), \
PR_htonl((reinterpret_cast<const uint32_t*>(x))[3]), \
PR_htonl((reinterpret_cast<const uint32_t*>(x))[4])
#define SHA1STRING(x) \
(nsPrintfCString("%08x%08x%08x%08x%08x", LOGSHA1(x)).get())
namespace mozilla {
class OriginAttributes;
namespace net {
class CacheHash : public nsISupports {
public:
NS_DECL_THREADSAFE_ISUPPORTS
using Hash16_t = uint16_t;
using Hash32_t = uint32_t;
static Hash32_t Hash(const char* aData, uint32_t aSize,
uint32_t aInitval = 0);
static Hash16_t Hash16(const char* aData, uint32_t aSize,
uint32_t aInitval = 0);
explicit CacheHash(uint32_t aInitval = 0);
void Update(const char* aData, uint32_t aLen);
Hash32_t GetHash();
Hash16_t GetHash16();
private:
virtual ~CacheHash() = default;
void Feed(uint32_t aVal, uint8_t aLen = 4);
static const uint32_t kGoldenRation = 0x9e3779b9;
uint32_t mA{kGoldenRation}, mB{kGoldenRation}, mC;
uint8_t mPos{0};
uint32_t mBuf{0};
uint8_t mBufPos{0};
uint32_t mLength{0};
bool mFinalized{false};
};
using OriginAttrsHash = uint64_t;
OriginAttrsHash GetOriginAttrsHash(const mozilla::OriginAttributes& aOA);
} // namespace net
} // namespace mozilla
#endif