java - Memory leak in JNI function Java_java_io_WinNTFileSystem_rename0? -


i think following function in file jdk/src/windows/native/java/io/winntfilesystem_md.c in http://download.java.net/openjdk/jdk6/promoted/b27/openjdk-6-src-b27-26_oct_2012.tar.gz neglects free memory used frompath or topath if 1 of them found null...

jniexport jboolean jnicall java_java_io_winntfilesystem_rename0(jnienv *env, jobject this, jobject from,                                  jobject to) {      jboolean rv = jni_false;     wchar *frompath = filetontpath(env, from, ids.path);     wchar *topath = filetontpath(env, to, ids.path);     if (frompath == null || topath == null)         return jni_false;     if (_wrename(frompath, topath) == 0) {         rv = jni_true;     }     free(frompath);     free(topath);     return rv; }

am missing something? in fact bug?

resolved:  looking further details of function pathtontpath in io_util_md.c, can see filetontpath return null in case of out-of-memory error, guess don't care if neglect free malloced when jvm crash! still should documented in java_java_io_winntfilesystem_rename0 function in opinion though.

i think original point valid. while research other function used code suggest problem might not important, code lacking when viewed in , of itself.

the general rule of code reviews if has question, should answered in code @ least comment.

the general rule of comments if can expressed in code, possibly should be.

all of these issues go away if code written eliminate question.


Comments

Post a Comment

Popular posts from this blog

javascript - jQuery: Add class depending on URL in the best way -

i have html progress meter: <div class="col-md-3" style="margin-left: -20px;"> <div class="progress-pos active" id="progess-1"> <div class="progress-pos-inner"> login </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-2"> <div class="progress-pos-inner"> scan items </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-3"> <div class="progress-pos-inner"> confirm address </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-4"> <div class="progress-pos-in...
Read more

caching - How to check if a url path exists in the service worker cache -

i need check if particular url path exists in service worker cache. example, suppose url is: /myserviceworker/service?a=110&b=70 this url exists in cache, there many of them different values of , b. now, suppose want refresh of these urls, how can that? i want know how access key values service worker cache. if know key, plan follows: var url = new url(key); if(url.pathname === "\/myserviceworker/service") refetch key but not sure how cache key , in format is. mean, string or url? cache api has match() method returns promise resolving in response object if match or undefined if no match exists. second parameter object can specify ignoresearch not take account url parameters. the ignoresearch option supported firefox ( chrome status here ). in other hand, retrieve cache entries, can use keys() method.
Read more

Redirect to a HTTPS version using .htaccess -

i need modify .htaccess file redirect urls https version without "www". http://example.com --> https://example.com http://www.example.com --> https://example.com https://www.example.com --> https://example.com this how .htaccess file looks like: rewriteengine on rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^(.*)$ redirect.php?id=$1&page=$2 [qsa,l] what modifications need make .htaccess in order forward https without "www"? it depends on doing current code. looks file called redirect trying display php page seo friendly url. think might confusing people. anyway, need , force https without www, need 1 more rule above. also second rule needs two capture groups in rewriterule test string because wanting 2 different values using $1 , $2 references. rewriteengine on #rediect www non www and/or http https --- combinations. rewritecond %{http_host} !^example\.com [nc,or] rewritecond %{https} !^...
Read more