LCOV - code coverage report
Current view: directory - xpcom/ds - nsProperties.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 52 6 11.5 %
Date: 2012-06-02 Functions: 13 8 61.5 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #include "nsProperties.h"
      39                 : #include "nsString.h"
      40                 : #include "nsCRT.h"
      41                 : 
      42                 : ////////////////////////////////////////////////////////////////////////////////
      43                 : 
      44             112 : NS_IMPL_AGGREGATED(nsProperties)
      45              16 : NS_INTERFACE_MAP_BEGIN_AGGREGATED(nsProperties)
      46              16 :     NS_INTERFACE_MAP_ENTRY(nsIProperties)
      47               0 : NS_INTERFACE_MAP_END
      48                 : 
      49                 : NS_IMETHODIMP
      50               0 : nsProperties::Get(const char* prop, const nsIID & uuid, void* *result)
      51                 : {
      52               0 :     NS_ENSURE_ARG(prop);
      53                 : 
      54               0 :     nsCOMPtr<nsISupports> value;
      55               0 :     if (!nsProperties_HashBase::Get(prop, getter_AddRefs(value))) {
      56               0 :         return NS_ERROR_FAILURE;
      57                 :     }
      58               0 :     return (value) ? value->QueryInterface(uuid, result) : NS_ERROR_NO_INTERFACE;
      59                 : }
      60                 : 
      61                 : NS_IMETHODIMP
      62               8 : nsProperties::Set(const char* prop, nsISupports* value)
      63                 : {
      64               8 :     NS_ENSURE_ARG(prop);
      65                 : 
      66               8 :     return Put(prop, value) ? NS_OK : NS_ERROR_FAILURE;
      67                 : }
      68                 : 
      69                 : NS_IMETHODIMP
      70               0 : nsProperties::Undefine(const char* prop)
      71                 : {
      72               0 :     NS_ENSURE_ARG(prop);
      73                 : 
      74               0 :     nsCOMPtr<nsISupports> value;
      75               0 :     if (!nsProperties_HashBase::Get(prop, getter_AddRefs(value)))
      76               0 :         return NS_ERROR_FAILURE;
      77                 : 
      78               0 :     Remove(prop);
      79               0 :     return NS_OK;
      80                 : }
      81                 : 
      82                 : NS_IMETHODIMP
      83               0 : nsProperties::Has(const char* prop, bool *result)
      84                 : {
      85               0 :     NS_ENSURE_ARG(prop);
      86                 : 
      87               0 :     nsCOMPtr<nsISupports> value;
      88                 :     *result = nsProperties_HashBase::Get(prop,
      89               0 :                                          getter_AddRefs(value));
      90               0 :     return NS_OK;
      91                 : }
      92                 : 
      93                 : struct GetKeysEnumData
      94                 : {
      95                 :     char **keys;
      96                 :     PRUint32 next;
      97                 :     nsresult res;
      98                 : };
      99                 : 
     100                 :  PLDHashOperator
     101               0 : GetKeysEnumerate(const char *key, nsISupports* data,
     102                 :                  void *arg)
     103                 : {
     104               0 :     GetKeysEnumData *gkedp = (GetKeysEnumData *)arg;
     105               0 :     gkedp->keys[gkedp->next] = nsCRT::strdup(key);
     106                 : 
     107               0 :     if (!gkedp->keys[gkedp->next]) {
     108               0 :         gkedp->res = NS_ERROR_OUT_OF_MEMORY;
     109               0 :         return PL_DHASH_STOP;
     110                 :     }
     111                 : 
     112               0 :     gkedp->next++;
     113               0 :     return PL_DHASH_NEXT;
     114                 : }
     115                 : 
     116                 : NS_IMETHODIMP 
     117               0 : nsProperties::GetKeys(PRUint32 *count, char ***keys)
     118                 : {
     119               0 :     NS_ENSURE_ARG(count);
     120               0 :     NS_ENSURE_ARG(keys);
     121                 : 
     122               0 :     PRUint32 n = Count();
     123               0 :     char ** k = (char **) nsMemory::Alloc(n * sizeof(char *));
     124               0 :     NS_ENSURE_TRUE(k, NS_ERROR_OUT_OF_MEMORY);
     125                 : 
     126                 :     GetKeysEnumData gked;
     127               0 :     gked.keys = k;
     128               0 :     gked.next = 0;
     129               0 :     gked.res = NS_OK;
     130                 : 
     131               0 :     EnumerateRead(GetKeysEnumerate, &gked);
     132                 : 
     133               0 :     nsresult rv = gked.res;
     134               0 :     if (NS_FAILED(rv)) {
     135                 :         // Free 'em all
     136               0 :         for (PRUint32 i = 0; i < gked.next; i++)
     137               0 :             nsMemory::Free(k[i]);
     138               0 :         nsMemory::Free(k);
     139               0 :         return rv;
     140                 :     }
     141                 : 
     142               0 :     *count = n;
     143               0 :     *keys = k;
     144               0 :     return NS_OK;
     145                 : }
     146                 : 
     147                 : ////////////////////////////////////////////////////////////////////////////////

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