C++ NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY函数代码示例

/* void getInterfaces (out PRUint32 count, [array, size_is (count),
   retval] out nsIIDPtr array); */
NS_IMETHODIMP
WSPProxy::GetInterfaces(PRUint32 *count, nsIID * **array)
{
  if (!mIID) {
    return NS_ERROR_NOT_INITIALIZED;
  }

  *count = 2;
  nsIID** iids = static_cast<nsIID**>(nsMemory::Alloc(2 * sizeof(nsIID*)));
  if (!iids) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  iids[0] = static_cast<nsIID *>(nsMemory::Clone(mIID, sizeof(nsIID)));
  if (NS_UNLIKELY(!iids[0])) {
    NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(0, iids);
    return NS_ERROR_OUT_OF_MEMORY;
  }
  const nsIID& wsiid = NS_GET_IID(nsIWebServiceProxy);
  iids[1] = static_cast<nsIID *>(nsMemory::Clone(&wsiid, sizeof(nsIID)));
  if (NS_UNLIKELY(!iids[1])) {
    NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(1, iids);
    return NS_ERROR_OUT_OF_MEMORY;
  }

  *array = iids;

  return NS_OK;
}

/* void Suggest (in wstring word, [array, size_is (count)] out wstring suggestions, out PRUint32 count); */
NS_IMETHODIMP mozHunspell::Suggest(const PRUnichar *aWord, PRUnichar ***aSuggestions, PRUint32 *aSuggestionCount)
{
  NS_ENSURE_ARG_POINTER(aSuggestions);
  NS_ENSURE_ARG_POINTER(aSuggestionCount);
  NS_ENSURE_TRUE(mHunspell, NS_ERROR_FAILURE);

  nsresult rv;
  *aSuggestionCount = 0;

  nsXPIDLCString charsetWord;
  rv = ConvertCharset(aWord, getter_Copies(charsetWord));
  NS_ENSURE_SUCCESS(rv, rv);

  char ** wlst;
  *aSuggestionCount = mHunspell->suggest(&wlst, charsetWord);

  if (*aSuggestionCount) {
    *aSuggestions  = (PRUnichar **)nsMemory::Alloc(*aSuggestionCount * sizeof(PRUnichar *));
    if (*aSuggestions) {
      PRUint32 index = 0;
      for (index = 0; index < *aSuggestionCount && NS_SUCCEEDED(rv); ++index) {
        // Convert the suggestion to utf16
        PRInt32 inLength = nsCRT::strlen(wlst[index]);
        PRInt32 outLength;
        rv = mDecoder->GetMaxLength(wlst[index], inLength, &outLength);
        if (NS_SUCCEEDED(rv))
        {
          (*aSuggestions)[index] = (PRUnichar *) nsMemory::Alloc(sizeof(PRUnichar) * (outLength+1));
          if ((*aSuggestions)[index])
          {
            rv = mDecoder->Convert(wlst[index], &inLength, (*aSuggestions)[index], &outLength);
            if (NS_SUCCEEDED(rv))
              (*aSuggestions)[index][outLength] = 0;
          }
          else
            rv = NS_ERROR_OUT_OF_MEMORY;
        }
      }

      if (NS_FAILED(rv))
        NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(index, *aSuggestions); // free the PRUnichar strings up to the point at which the error occurred
    }
    else // if (*aSuggestions)
      rv = NS_ERROR_OUT_OF_MEMORY;
  }

  NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(*aSuggestionCount, wlst);
  return rv;
}

NS_IMETHODIMP
nsDOMOfflineResourceList::GetMozItems(nsIDOMDOMStringList **aItems)
{
  *aItems = nsnull;

  nsRefPtr<nsDOMStringList> items = new nsDOMStringList();
  NS_ENSURE_TRUE(items, NS_ERROR_OUT_OF_MEMORY);

  // If we are not associated with an application cache, return an
  // empty list.
  nsCOMPtr<nsIApplicationCache> appCache = GetDocumentAppCache();
  if (!appCache) {
    NS_ADDREF(*aItems = items);
    return NS_OK;
  }

  nsresult rv = Init();
  NS_ENSURE_SUCCESS(rv, rv);

  PRUint32 length;
  char **keys;
  rv = appCache->GatherEntries(nsIApplicationCache::ITEM_DYNAMIC,
                               &length, &keys);
  NS_ENSURE_SUCCESS(rv, rv);

  for (PRUint32 i = 0; i < length; i++) {
    items->Add(NS_ConvertUTF8toUTF16(keys[i]));
  }

  NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(length, keys);

  NS_ADDREF(*aItems = items);
  return NS_OK;
}

NS_IMETHODIMP
nsMsgAccount::ClearAllValues()
{
    nsresult rv;
    nsCAutoString rootPref("mail.account.");
    rootPref += m_accountKey;
    rootPref += '.';

    rv = getPrefService();
    if (NS_FAILED(rv))
        return rv;

    PRUint32 cntChild, i;
    char **childArray;
 
    rv = m_prefs->GetChildList(rootPref.get(), &cntChild, &childArray);
    if (NS_SUCCEEDED(rv)) {
        for (i = 0; i < cntChild; i++)
            m_prefs->ClearUserPref(childArray[i]);

        NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(cntChild, childArray);
    }

    return rv;
}

NS_IMETHODIMP 
mozSpellChecker::CheckWord(const nsAString &aWord, bool *aIsMisspelled, nsTArray<nsString> *aSuggestions)
{
  nsresult result;
  bool correct;
  if(!mSpellCheckingEngine)
    return NS_ERROR_NULL_POINTER;

  *aIsMisspelled = false;
  result = mSpellCheckingEngine->Check(PromiseFlatString(aWord).get(), &correct);
  NS_ENSURE_SUCCESS(result, result);
  if(!correct){
    if(aSuggestions){
      uint32_t count,i;
      PRUnichar **words;
      
      result = mSpellCheckingEngine->Suggest(PromiseFlatString(aWord).get(), &words, &count);
      NS_ENSURE_SUCCESS(result, result); 
      for(i=0;i<count;i++){
        aSuggestions->AppendElement(nsDependentString(words[i]));
      }
      
      if (count)
        NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(count, words);
    }
    *aIsMisspelled = true;
  }
  return NS_OK;
}

/* void getKeyForTag (in wstring tag); */
NS_IMETHODIMP nsMsgTagService::GetKeyForTag(const nsAString &aTag, nsACString &aKey)
{
  uint32_t count;
  char **prefList;
  nsresult rv = m_tagPrefBranch->GetChildList("", &count, &prefList);
  NS_ENSURE_SUCCESS(rv, rv);
  // traverse the list, and look for a pref with the desired tag value.
  for (uint32_t i = count; i--;)
  {
    // We are returned the tag prefs in the form "<key>.<tag_data_type>", but
    // since we only want the tags, just check that the string ends with "tag".
    nsDependentCString prefName(prefList[i]);
    if (StringEndsWith(prefName, NS_LITERAL_CSTRING(TAG_PREF_SUFFIX_TAG)))
    {
      nsAutoString curTag;
      GetUnicharPref(prefList[i], curTag);
      if (aTag.Equals(curTag))
      {
        aKey = Substring(prefName, 0, prefName.Length() - STRLEN(TAG_PREF_SUFFIX_TAG));
        break;
      }
    }
  }
  NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(count, prefList);
  ToLowerCase(aKey);
  return NS_OK;
}

nsresult
nsLDAPSyncQuery::OnLDAPSearchEntry(nsILDAPMessage *aMessage)
{
  uint32_t attrCount;
  char** attributes;
  nsresult rv = aMessage->GetAttributes(&attrCount, &attributes);
  if (NS_FAILED(rv))
  {
    NS_WARNING("nsLDAPSyncQuery:OnLDAPSearchEntry(): "
               "aMessage->GetAttributes() failed");
    FinishLDAPQuery();
    return rv;
  }

  // Iterate through the attributes received in this message
  for (uint32_t i = 0; i < attrCount; i++)
  {
    PRUnichar **vals;
    uint32_t valueCount;

    // Get the values of this attribute.
    // XXX better failure handling
    rv = aMessage->GetValues(attributes[i], &valueCount, &vals);
    if (NS_FAILED(rv))
    {
      NS_WARNING("nsLDAPSyncQuery:OnLDAPSearchEntry(): "
                 "aMessage->GetValues() failed\n");
      FinishLDAPQuery();
      break;
    }

    // Store all values of this attribute in the mResults.
    for (uint32_t j = 0; j < valueCount; j++) {
      mResults.Append(PRUnichar('\n'));
      mResults.AppendASCII(attributes[i]);
      mResults.Append(PRUnichar('='));
      mResults.Append(vals[j]);
    }

    NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(valueCount, vals);
  }
  NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(attrCount, attributes);

  return rv;
}

void
nsDOMOfflineResourceList::ClearCachedKeys()
{
  if (mCachedKeys) {
    NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(mCachedKeysCount, mCachedKeys);
    mCachedKeys = nsnull;
    mCachedKeysCount = 0;
  }
}

NS_IMETHODIMP 
mozSpellChecker::GetDictionaryList(nsTArray<nsString> *aDictionaryList)
{
  nsresult rv;

  // For catching duplicates
  nsClassHashtable<nsStringHashKey, nsCString> dictionaries;

  nsCOMArray<mozISpellCheckingEngine> spellCheckingEngines;
  rv = GetEngineList(&spellCheckingEngines);
  NS_ENSURE_SUCCESS(rv, rv);

  for (int32_t i = 0; i < spellCheckingEngines.Count(); i++) {
    nsCOMPtr<mozISpellCheckingEngine> engine = spellCheckingEngines[i];

    uint32_t count = 0;
    PRUnichar **words = nullptr;
    engine->GetDictionaryList(&words, &count);
    for (uint32_t k = 0; k < count; k++) {
      nsAutoString dictName;

      dictName.Assign(words[k]);

      // Skip duplicate dictionaries. Only take the first one
      // for each name.
      if (dictionaries.Get(dictName, nullptr))
        continue;

      dictionaries.Put(dictName, nullptr);

      if (!aDictionaryList->AppendElement(dictName)) {
        NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(count, words);
        return NS_ERROR_OUT_OF_MEMORY;
      }
    }

    NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(count, words);
  }

  return NS_OK;
}

nsresult
nsSeamonkeyProfileMigrator::CopyPasswords(PRBool aReplace)
{
  nsresult rv;

  nsCString signonsFileName;
  GetSignonFileName(aReplace, getter_Copies(signonsFileName));

  if (signonsFileName.IsEmpty())
    return NS_ERROR_FILE_NOT_FOUND;

  NS_ConvertASCIItoUTF16 fileName(signonsFileName);
  if (aReplace)
    rv = CopyFile(fileName, fileName);
  else {
    // Get the password manager, which is the destination for the passwords
    // being migrated. Also create a new instance of the legacy password
    // storage component, which we'll use to slurp in the signons from
    // Seamonkey's signons.txt.
    nsCOMPtr<nsILoginManager> pwmgr(
        do_GetService("@mozilla.org/login-manager;1"));
    nsCOMPtr<nsILoginManagerStorage> importer(
        do_CreateInstance("@mozilla.org/login-manager/storage/legacy;1"));

    nsCOMPtr<nsIFile> signonsFile;
    mSourceProfile->Clone(getter_AddRefs(signonsFile));
    signonsFile->Append(fileName);

    importer->InitWithFile(signonsFile, nsnull);

    PRUint32 count;
    nsILoginInfo **logins;

    rv = importer->GetAllLogins(&count, &logins);
    NS_ENSURE_SUCCESS(rv, rv);
    for (PRUint32 i = 0; i < count; i++) {
        pwmgr->AddLogin(logins[i]);
    }
    NS_FREE_XPCOM_ISUPPORTS_POINTER_ARRAY(count, logins);

    PRUnichar **hostnames;
    rv = importer->GetAllDisabledHosts(&count, &hostnames);
    NS_ENSURE_SUCCESS(rv, rv);
    for (PRUint32 i = 0; i < count; i++) {
        pwmgr->SetLoginSavingEnabled(nsDependentString(hostnames[i]),
                                     PR_FALSE);
    }
    NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(count, hostnames);
  }
  return rv;
}

void
LoadExistingPrefs()
{
  uint32_t count;
  char** names;
  nsresult rv = Preferences::GetRootBranch()->
      GetChildList(kLoggingPrefPrefix, &count, &names);
  if (NS_SUCCEEDED(rv) && count) {
    for (size_t i = 0; i < count; i++) {
      LoadPrefValue(names[i]);
    }
    NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(count, names);
  }
}

/**
 * Export VirtualBox vrde server
 */
static void exportVirtualBoxVRDEServer(IVRDEServer *vrdeServer, xmlTextWriterPtr writer) {
	nsresult rc;

	// find info
	PRBool enabled = PR_FALSE;

	vrdeServer->GetEnabled(&enabled);

	// vrde enabled
	ADDXMLBOOL(vrdeServer->GetEnabled, "vrde");

	if (enabled == PR_TRUE) {
		// vrde extpack
		ADDXMLSTRING(vrdeServer->GetVRDEExtPack, "vrde.ext");

		// vrde auth lib
		ADDXMLSTRING(vrdeServer->GetAuthLibrary, "vrde.authlib");

		// vrde multicon
		ADDXMLBOOL(vrdeServer->GetAllowMultiConnection, "vrde.multicon");

		// vrde reusecon
		ADDXMLBOOL(vrdeServer->GetReuseSingleConnection, "vrde.reusecon");

		// vrde properties
		{
			PRUnichar **properties = nsnull;
			PRUint32 propertiesCount = 0;
			nsAutoString keyPrefix;

			rc = vrdeServer->GetVRDEProperties(&propertiesCount, &properties);
			if (NS_SUCCEEDED(rc)) {
				for (PRUint32 i = 0; i < propertiesCount; i++) {
					nsXPIDLString value;

					rc = vrdeServer->GetVRDEProperty(properties[i], getter_Copies(value));
					if (NS_SUCCEEDED(rc)) {
						nsCAutoString key("vrde.");

						key.AppendWithConversion(properties[i]);
						WRITEXMLSTRING(convertString(key).c_str(), convertString(value));
					}
				}

				NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(propertiesCount, properties);
			}
		}
	}
}

// Convert the list of words in iwords to the same capitalization aWord and
// return them in owords.
NS_IMETHODIMP mozEnglishWordUtils::FromRootForm(const char16_t *aWord, const char16_t **iwords, uint32_t icount, char16_t ***owords, uint32_t *ocount)
{
  nsAutoString word(aWord);
  nsresult rv = NS_OK;

  int32_t length;
  char16_t **tmpPtr  = (char16_t **)moz_xmalloc(sizeof(char16_t *)*icount);
  if (!tmpPtr)
    return NS_ERROR_OUT_OF_MEMORY;

  mozEnglishWordUtils::myspCapitalization ct = captype(word);
  for(uint32_t i = 0; i < icount; ++i) {
    length = NS_strlen(iwords[i]);
    tmpPtr[i] = (char16_t *) moz_xmalloc(sizeof(char16_t) * (length + 1));
    if (MOZ_UNLIKELY(!tmpPtr[i])) {
      NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(i, tmpPtr);
      return NS_ERROR_OUT_OF_MEMORY;
    }
    memcpy(tmpPtr[i], iwords[i], (length + 1) * sizeof(char16_t));

    nsAutoString capTest(tmpPtr[i]);
    mozEnglishWordUtils::myspCapitalization newCt=captype(capTest);
    if(newCt == NoCap){
      switch(ct)
        {
        case HuhCap:
        case NoCap:
          break;
        case AllCap:
          ToUpperCase(tmpPtr[i],tmpPtr[i],length);
          rv = NS_OK;
          break;
        case InitCap:
          ToUpperCase(tmpPtr[i],tmpPtr[i],1);
          rv = NS_OK;
          break;
        default:
          rv = NS_ERROR_FAILURE; // should never get here;
          break;

        }
    }
  }
  if (NS_SUCCEEDED(rv)){
    *owords = tmpPtr;
    *ocount = icount;
  }
  return rv;
}

nsresult
nsLDAPSyncQuery::OnLDAPSearchResult(nsILDAPMessage *aMessage)
{
    // We are done with the LDAP search.
    // Release the control variable for the eventloop and other members
    // 
    FinishLDAPQuery();
    
    // Release memory allocated for mAttrs
    
    if (mAttrCount > 0)
        NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(mAttrCount, mAttrs);

    return NS_OK;
}

// Convert the list of words in iwords to the same capitalization aWord and 
// return them in owords.
NS_IMETHODIMP mozEnglishWordUtils::FromRootForm(const PRUnichar *aWord, const PRUnichar **iwords, PRUint32 icount, PRUnichar ***owords, PRUint32 *ocount)
{
  nsAutoString word(aWord);
  nsresult rv = NS_OK;

  PRInt32 length;
  PRUnichar **tmpPtr  = (PRUnichar **)nsMemory::Alloc(sizeof(PRUnichar *)*icount);
  if (!tmpPtr)
    return NS_ERROR_OUT_OF_MEMORY;

  mozEnglishWordUtils::myspCapitalization ct = captype(word);
  for(PRUint32 i = 0; i < icount; ++i) {
    length = nsCRT::strlen(iwords[i]);
    tmpPtr[i] = (PRUnichar *) nsMemory::Alloc(sizeof(PRUnichar) * (length + 1));
    if (NS_UNLIKELY(!tmpPtr[i])) {
      NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(i, tmpPtr);
      return NS_ERROR_OUT_OF_MEMORY;
    }
    memcpy(tmpPtr[i], iwords[i], (length + 1) * sizeof(PRUnichar));

    nsAutoString capTest(tmpPtr[i]);
    mozEnglishWordUtils::myspCapitalization newCt=captype(capTest);
    if(newCt == NoCap){
      switch(ct) 
        {
        case HuhCap:
        case NoCap:
          break;
        case AllCap:
          rv = mCaseConv->ToUpper(tmpPtr[i],tmpPtr[i],length);
          break;
        case InitCap:  
          rv = mCaseConv->ToUpper(tmpPtr[i],tmpPtr[i],1);
          break;
        default:
          rv = NS_ERROR_FAILURE; // should never get here;
          break;

        }
    }
  }
  if (NS_SUCCEEDED(rv)){
    *owords = tmpPtr;
    *ocount = icount;
  }
  return rv;
}