[jira] Commented: (THRIFT-59) Memory leak reading lists of structs

["Andrew McGeachie (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/THRIFT-59?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12608181#action_12608181 ] 

Andrew McGeachie commented on THRIFT-59:
----------------------------------------

readable snippet with markup.

{noformat}
      case 3:
        if (fieldType == TType_LIST) {
          int _size50;
          [inProtocol readListBeginReturningElementType: NULL size: &_size50];
          NSMutableArray * fieldValue = [[NSMutableArray alloc] initWithCapacity: _size50];
          int _i51;
          for (_i51 = 0; _i51 < _size50; ++_i51)
          {
            MYOBJECT *_elem52 = [[MYOBJECT alloc] init];
            [_elem52 read: inProtocol];
            [fieldValue addObject: _elem52];
          }
          [inProtocol readListEnd];
          [self setNotes: fieldValue];
          [fieldValue release];
        } else { 
          [TProtocolUtil skipType: fieldType onProtocol: inProtocol];
        }
        break;
{noformat}

> Memory leak reading lists of structs
> ------------------------------------
>
>                 Key: THRIFT-59
>                 URL: https://issues.apache.org/jira/browse/THRIFT-59
>             Project: Thrift
>          Issue Type: Bug
>          Components: Compiler (Cocoa)
>            Reporter: Andrew McGeachie
>
> The Cocoa generated code inside a struct that reads in a field that is a list of structs leaks memory.
> Here's a relevant sample from the read: of a generated struct:
>       case 3:
>         if (fieldType == TType_LIST) {
>           int _size50;
>           [inProtocol readListBeginReturningElementType: NULL size: &_size50];
>           NSMutableArray * fieldValue = [[NSMutableArray alloc] initWithCapacity: _size50];
>           int _i51;
>           for (_i51 = 0; _i51 < _size50; ++_i51)
>           {
>             MYOBJECT *_elem52 = [[MYOBJECT alloc] init];
>             [_elem52 read: inProtocol];
>             [fieldValue addObject: _elem52];
>           }
>           [inProtocol readListEnd];
>           [self setNotes: fieldValue];
>           [fieldValue release];
>         } else { 
>           [TProtocolUtil skipType: fieldType onProtocol: inProtocol];
>         }
>         break;
> Each instance of MYOBJECT read in is created with alloc/init and then added to the fieldValue array (which retains it) but then never released.

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