gecko-dev/netwerk/cache2/OldWrappers.h

// Stuff to link the old imp to the new api - will go away!

#ifndef OLDWRAPPERS__H__
#define OLDWRAPPERS__H__

#include "nsICacheEntry.h"
#include "nsICacheListener.h"
#include "nsICacheStorage.h"

#include "nsCOMPtr.h"
#include "nsICacheEntryOpenCallback.h"
#include "nsICacheEntryDescriptor.h"
#include "nsICacheStorageVisitor.h"
#include "nsThreadUtils.h"
#include "mozilla/TimeStamp.h"

class nsIURI;
class nsICacheEntryOpenCallback;
class nsICacheStorageConsumptionObserver;
class nsIApplicationCache;
class nsILoadContextInfo;

namespace mozilla {
namespace net {

class CacheStorage;

class _OldCacheEntryWrapper : public nsICacheEntry {
 public:
  NS_DECL_THREADSAFE_ISUPPORTS

  // nsICacheEntryDescriptor
  NS_IMETHOD SetExpirationTime(uint32_t expirationTime) override {
    return !mOldDesc ? NS_ERROR_NULL_POINTER
                     : mOldDesc->SetExpirationTime(expirationTime);
  }
  nsresult OpenInputStream(uint32_t offset, nsIInputStream **_retval) {
    return !mOldDesc ? NS_ERROR_NULL_POINTER
                     : mOldDesc->OpenInputStream(offset, _retval);
  }
  nsresult OpenOutputStream(uint32_t offset, nsIOutputStream **_retval) {
    return !mOldDesc ? NS_ERROR_NULL_POINTER
                     : mOldDesc->OpenOutputStream(offset, _retval);
  }
  NS_IMETHOD OpenAlternativeOutputStream(const nsACString &type,
                                         int64_t predictedSize,
                                         nsIOutputStream **_retval) override {
    return NS_ERROR_NOT_IMPLEMENTED;
  }
  NS_IMETHOD OpenAlternativeInputStream(const nsACString &type,
                                        nsIInputStream **_retval) override {
    return NS_ERROR_NOT_IMPLEMENTED;
  }

  NS_IMETHOD GetSecurityInfo(nsISupports **aSecurityInfo) override {
    return !mOldDesc ? NS_ERROR_NULL_POINTER
                     : mOldDesc->GetSecurityInfo(aSecurityInfo);
  }
  NS_IMETHOD SetSecurityInfo(nsISupports *aSecurityInfo) override {
    return !mOldDesc ? NS_ERROR_NULL_POINTER
                     : mOldDesc->SetSecurityInfo(aSecurityInfo);
  }
  NS_IMETHOD GetStorageDataSize(uint32_t *aStorageDataSize) override {
    return !mOldDesc ? NS_ERROR_NULL_POINTER
                     : mOldDesc->GetStorageDataSize(aStorageDataSize);
  }
  nsresult AsyncDoom(nsICacheListener *listener) {
    return !mOldDesc ? NS_ERROR_NULL_POINTER : mOldDesc->AsyncDoom(listener);
  }
  NS_IMETHOD MarkValid(void) override {
    return !mOldDesc ? NS_ERROR_NULL_POINTER : mOldDesc->MarkValid();
  }
  NS_IMETHOD Close(void) override {
    return !mOldDesc ? NS_ERROR_NULL_POINTER : mOldDesc->Close();
  }
  NS_IMETHOD GetMetaDataElement(const char *key, char **_retval) override {
    return !mOldDesc ? NS_ERROR_NULL_POINTER
                     : mOldDesc->GetMetaDataElement(key, _retval);
  }
  NS_IMETHOD SetMetaDataElement(const char *key, const char *value) override {
    return !mOldDesc ? NS_ERROR_NULL_POINTER
                     : mOldDesc->SetMetaDataElement(key, value);
  }

  NS_IMETHOD GetDiskStorageSizeInKB(uint32_t *aDiskStorageSize) override {
    return NS_ERROR_NOT_IMPLEMENTED;
  }

  // nsICacheEntryInfo
  NS_IMETHOD GetKey(nsACString &aKey) override {
    return mOldInfo->GetKey(aKey);
  }
  NS_IMETHOD GetCacheEntryId(uint64_t *aCacheEntryId) override {
    *aCacheEntryId = mCacheEntryId;
    return NS_OK;
  }
  NS_IMETHOD GetFetchCount(int32_t *aFetchCount) override {
    return mOldInfo->GetFetchCount(aFetchCount);
  }
  NS_IMETHOD GetLastFetched(uint32_t *aLastFetched) override {
    return mOldInfo->GetLastFetched(aLastFetched);
  }
  NS_IMETHOD GetLastModified(uint32_t *aLastModified) override {
    return mOldInfo->GetLastModified(aLastModified);
  }
  NS_IMETHOD GetExpirationTime(uint32_t *aExpirationTime) override {
    return mOldInfo->GetExpirationTime(aExpirationTime);
  }
  nsresult GetDataSize(uint32_t *aDataSize) {
    return mOldInfo->GetDataSize(aDataSize);
  }
  NS_IMETHOD GetOnStartTime(uint64_t *aTime) override {
    return NS_ERROR_NOT_IMPLEMENTED;
  }
  NS_IMETHOD GetOnStopTime(uint64_t *aTime) override {
    return NS_ERROR_NOT_IMPLEMENTED;
  }
  NS_IMETHOD SetNetworkTimes(uint64_t aOnStartTime,
                             uint64_t aOnStopTime) override {
    return NS_ERROR_NOT_IMPLEMENTED;
  }
  NS_IMETHOD GetLoadContextInfo(nsILoadContextInfo **aInfo) override {
    return NS_ERROR_NOT_IMPLEMENTED;
  }
  NS_IMETHOD Dismiss() override { return NS_ERROR_NOT_IMPLEMENTED; }

  NS_IMETHOD AsyncDoom(nsICacheEntryDoomCallback *listener) override;
  NS_IMETHOD GetPersistent(bool *aPersistToDisk) override;
  NS_IMETHOD GetIsForcedValid(bool *aIsForcedValid) override;
  NS_IMETHOD ForceValidFor(uint32_t aSecondsToTheFuture) override;
  NS_IMETHOD SetValid() override { return NS_OK; }
  NS_IMETHOD MetaDataReady() override { return NS_OK; }
  NS_IMETHOD Recreate(bool, nsICacheEntry **) override;
  NS_IMETHOD GetDataSize(int64_t *size) override;
  NS_IMETHOD GetAltDataSize(int64_t *size) override;
  NS_IMETHOD GetAltDataType(nsACString &aType) override;
  NS_IMETHOD OpenInputStream(int64_t offset, nsIInputStream **_retval) override;
  NS_IMETHOD OpenOutputStream(int64_t offset, int64_t predictedSize,
                              nsIOutputStream **_retval) override;
  NS_IMETHOD MaybeMarkValid() override;
  NS_IMETHOD HasWriteAccess(bool aWriteOnly, bool *aWriteAccess) override;
  NS_IMETHOD VisitMetaData(nsICacheEntryMetaDataVisitor *) override;

  explicit _OldCacheEntryWrapper(nsICacheEntryDescriptor *desc);
  explicit _OldCacheEntryWrapper(nsICacheEntryInfo *info);

 private:
  virtual ~_OldCacheEntryWrapper();

  _OldCacheEntryWrapper() = delete;
  nsICacheEntryDescriptor *mOldDesc;  // ref holded in mOldInfo
  nsCOMPtr<nsICacheEntryInfo> mOldInfo;

  const uint64_t mCacheEntryId;
};

class _OldCacheLoad : public Runnable, public nsICacheListener {
 public:
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSIRUNNABLE
  NS_DECL_NSICACHELISTENER

  _OldCacheLoad(const nsACString &aScheme, const nsACString &aCacheKey,
                nsICacheEntryOpenCallback *aCallback,
                nsIApplicationCache *aAppCache, nsILoadContextInfo *aLoadInfo,
                bool aWriteToDisk, uint32_t aFlags);

  nsresult Start();

 protected:
  virtual ~_OldCacheLoad();

 private:
  void Check();

  nsCOMPtr<nsIEventTarget> mCacheThread;

  nsCString const mScheme;
  nsCString const mCacheKey;
  nsCOMPtr<nsICacheEntryOpenCallback> mCallback;
  nsCOMPtr<nsILoadContextInfo> mLoadInfo;
  uint32_t const mFlags;

  bool const mWriteToDisk : 1;
  bool mNew : 1;
  bool mOpening : 1;
  bool mSync : 1;

  nsCOMPtr<nsICacheEntry> mCacheEntry;
  nsresult mStatus;
  uint32_t mRunCount;
  nsCOMPtr<nsIApplicationCache> mAppCache;

  mozilla::TimeStamp mLoadStart;
};

class _OldStorage : public nsICacheStorage {
  NS_DECL_THREADSAFE_ISUPPORTS
  NS_DECL_NSICACHESTORAGE

 public:
  _OldStorage(nsILoadContextInfo *aInfo, bool aAllowDisk, bool aLookupAppCache,
              bool aOfflineStorage, nsIApplicationCache *aAppCache);

 private:
  virtual ~_OldStorage();
  nsresult AssembleCacheKey(nsIURI *aURI, nsACString const &aIdExtension,
                            nsACString &aCacheKey, nsACString &aScheme);
  nsresult ChooseApplicationCache(const nsACString &cacheKey,
                                  nsIApplicationCache **aCache);

  nsCOMPtr<nsILoadContextInfo> mLoadInfo;
  nsCOMPtr<nsIApplicationCache> mAppCache;
  bool const mWriteToDisk : 1;
  bool const mLookupAppCache : 1;
  bool const mOfflineStorage : 1;
};

class _OldVisitCallbackWrapper : public nsICacheVisitor {
  NS_DECL_THREADSAFE_ISUPPORTS
  NS_DECL_NSICACHEVISITOR

  _OldVisitCallbackWrapper(char const *deviceID, nsICacheStorageVisitor *cb,
                           bool visitEntries, nsILoadContextInfo *aInfo)
      : mCB(cb),
        mVisitEntries(visitEntries),
        mDeviceID(deviceID),
        mLoadInfo(aInfo),
        mHit(false) {}

 private:
  virtual ~_OldVisitCallbackWrapper();
  nsCOMPtr<nsICacheStorageVisitor> mCB;
  bool mVisitEntries;
  char const *mDeviceID;
  nsCOMPtr<nsILoadContextInfo> mLoadInfo;
  bool mHit;  // set to true when the device was found
};

class _OldGetDiskConsumption : public Runnable, public nsICacheVisitor {
 public:
  static nsresult Get(nsICacheStorageConsumptionObserver *aCallback);

 private:
  explicit _OldGetDiskConsumption(
      nsICacheStorageConsumptionObserver *aCallback);
  virtual ~_OldGetDiskConsumption() = default;
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSICACHEVISITOR
  NS_DECL_NSIRUNNABLE

  nsCOMPtr<nsICacheStorageConsumptionObserver> mCallback;
  int64_t mSize;
};

}  // namespace net
}  // namespace mozilla

#endif