# Dl/import is not thread safe

**URL:** <https://www.ruby-forum.com/t/dl-import-is-not-thread-safe/88463>\
**Category:** Development\
**Created:** [March 11, 2007, 3:40pm UTC](https://www.ruby-forum.com/t/dl-import-is-not-thread-safe/88463 "2007-03-11T15:40:52Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![sheepman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/d07c76/32.png) [@sheepman](https://www.ruby-forum.com/u/sheepman)\
**Post date:** [March 11, 2007, 3:40pm UTC](https://www.ruby-forum.com/t/dl-import-is-not-thread-safe/88463/1 "2007-03-11T15:40:52Z")

</div>

e$B$3$s$P$s$O!"e(Bsheepman e$B$G$9!#e(B

e$B$[$H$s$ILdBj$K$J$k\>l9g$O$J$$$H;W$&$N$G$9$,!"e(B  
dl/import e$B$N0J2\<$NItJ,$,%9%l%C%I0BA4$G$O$J$$$N$G!"e(B  
e$B%Q%C%A$rE:IU$7$^$9!#e(B

@retval e$B$,JV$5$l$kA0$K!“JL$N%9%l%C%I$Ge(B @retval e$B$NCM$re(B  
e$BJQ$($i$l$k2DG=@-$,$”$k$H;W$$$^$9!#e(B

# $ svn diff ext/dl/lib/dl/import.rb Index: ext/dl/lib/dl/import.rb

— ext/dl/lib/dl/import.rb (revision 12023)  
+++ ext/dl/lib/dl/import.rb (working copy)  
@@ -87,7 +87,7 @@  
" rs = dec.call(rs) if (dec && rs)",  
" @retval = r",  
" @args = rs",

- 

```
    " @retval",

```

- 

```
    " r",
    "}",
  ].join("\n"))

```

@@ -169,7 +169,7 @@  
" rs = dec.call(rs) if dec",  
" @retval = r",  
" @args = rs",

- 

```
    " return @retval",

```

- 

```
    " return r",
    "end",
    "module_function :#{mname}",
  ].join("\n")
```

---

<div class="post-metadata">

**Author:** ![sheepman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/d07c76/32.png) [@sheepman](https://www.ruby-forum.com/u/sheepman)\
**Post date:** [March 11, 2007, 5:11pm UTC](https://www.ruby-forum.com/t/dl-import-is-not-thread-safe/88463/2 "2007-03-11T17:11:01Z")

</div>

At Sun, 11 Mar 2007 23:39:59 +0900,  
sheepman wrote:

> ã»ã¨ã‚“ã©å•é¡Œã«ãªã‚‹å ´åˆã¯ãªã„ã¨æ€ã†ã®ã§ã™ãŒã€  
> dl/import の以下の部分がスレッド安全ではないので、  
> パッチを添付します。
> 
> @retval が返される前に、別のスレッドで @retval の値を  
> 変えられる可能性があると思います。

　ありがとうございます。取り込みました。

–  
/  
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