Re: Memory leaks in BufFileOpenShared()

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От Tatsuo Ishii
Тема Re: Memory leaks in BufFileOpenShared()
Дата
Msg-id 20180615.162003.2258832502225295119.t-ishii@sraoss.co.jp
обсуждение исходный текст
Ответ на Memory leaks in BufFileOpenShared()  (Antonin Houska <ah@cybertec.at>)
Ответы Re: Memory leaks in BufFileOpenShared()  (Antonin Houska <ah@cybertec.at>)
Список pgsql-hackers
> Memory is allocated twice for "file" and "files" variables. Possible fix:
> 
> diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c
> index d8a18dd3dc..00f61748b3 100644
> --- a/src/backend/storage/file/buffile.c
> +++ b/src/backend/storage/file/buffile.c
> @@ -277,10 +277,10 @@ BufFileCreateShared(SharedFileSet *fileset, const char *name)
>  BufFile *
>  BufFileOpenShared(SharedFileSet *fileset, const char *name)
>  {
> -       BufFile    *file = (BufFile *) palloc(sizeof(BufFile));
> +       BufFile    *file;
>         char            segment_name[MAXPGPATH];
>         Size            capacity = 16;
> -       File       *files = palloc(sizeof(File) * capacity);
> +       File       *files;
>         int                     nfiles = 0;
>  
>         file = (BufFile *) palloc(sizeof(BufFile));

Good catch. Thanks.

Best regards,
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese:http://www.sraoss.co.jp


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