LCOV - code coverage report
Current view: directory - modules/libjar/zipwriter/src - StreamFunctions.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 18 16 88.9 %
Date: 2012-06-02 Functions: 2 2 100.0 %

       1                 : /* ***** BEGIN LICENSE BLOCK *****
       2                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       3                 :  *
       4                 :  * The contents of this file are subject to the Mozilla Public License Version
       5                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       6                 :  * the License. You may obtain a copy of the License at
       7                 :  * http://www.mozilla.org/MPL/
       8                 :  *
       9                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      10                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      11                 :  * for the specific language governing rights and limitations under the
      12                 :  * License.
      13                 :  *
      14                 :  * The Original Code is Zip Writer Component.
      15                 :  *
      16                 :  * The Initial Developer of the Original Code is
      17                 :  * Dave Townsend <dtownsend@oxymoronical.com>.
      18                 :  *
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2007
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *      Mook <mook.moz+random.code@gmail.com>
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK *****
      38                 :  */
      39                 : 
      40                 : #include "nscore.h"
      41                 : #include "nsIInputStream.h"
      42                 : #include "nsIOutputStream.h"
      43                 : 
      44                 : /*
      45                 :  * Fully reads the required amount of data. Keeps reading until all the
      46                 :  * data is retrieved or an error is hit.
      47                 :  */
      48          161755 : NS_HIDDEN_(nsresult) ZW_ReadData(nsIInputStream *aStream, char *aBuffer, PRUint32 aCount)
      49                 : {
      50          485265 :     while (aCount > 0) {
      51                 :         PRUint32 read;
      52          161755 :         nsresult rv = aStream->Read(aBuffer, aCount, &read);
      53          161755 :         NS_ENSURE_SUCCESS(rv, rv);
      54          161755 :         aCount -= read;
      55          161755 :         aBuffer += read;
      56                 :         // If we hit EOF before reading the data we need then throw.
      57          161755 :         if (read == 0 && aCount > 0)
      58               0 :             return NS_ERROR_FAILURE;
      59                 :     }
      60                 : 
      61          161755 :     return NS_OK;
      62                 : }
      63                 : 
      64                 : /*
      65                 :  * Fully writes the required amount of data. Keeps writing until all the
      66                 :  * data is written or an error is hit.
      67                 :  */
      68           59219 : NS_HIDDEN_(nsresult) ZW_WriteData(nsIOutputStream *aStream, const char *aBuffer,
      69                 :                                   PRUint32 aCount)
      70                 : {
      71          171590 :     while (aCount > 0) {
      72                 :         PRUint32 written;
      73           53152 :         nsresult rv = aStream->Write(aBuffer, aCount, &written);
      74           53152 :         NS_ENSURE_SUCCESS(rv, rv);
      75           53152 :         if (written <= 0)
      76               0 :             return NS_ERROR_FAILURE;
      77           53152 :         aCount -= written;
      78           53152 :         aBuffer += written;
      79                 :     }
      80                 : 
      81           59219 :     return NS_OK;
      82                 : }

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