Thread overview
'Access Violation Error' with parallel-foreach loop
5 days ago
ooyu
5 days ago
ikod
5 days ago
ooyu
5 days ago
ooyu
4 days ago
ikod
5 days ago
When i was uing parallel-foreach loop, got this error:

 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
object.Error@(0): Access Violation
----------------
0x0056CCB8 in _flushbu
0x005663C7 in fwrite
0x0041D39F in nothrow @nogc @trusted uint std.stdio.trustedFwrite!(char).trustedFwrite(shared(core.stdc.stdio._iobuf)*, const(char[]))
at C:\D\dmd2\windows\bin\..\..\src\phobos\std\stdio.d(3836)
0x004611AA in D3std6format99__T14formattedWri at C:\D\dmd2\windows\bin\..\..\src\phobos\std\format.d(556)
 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄

code is here:
 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
foreach( web_url; parallel(urls) ){
    try{
        auto rq = Request(); // using dlang-requests library
        auto d = rq.get( std.uri.encode(web_url) ); // file url

        File f = File(path_hash[web_url], "wb");
        f.write( d.responseBody );
        f.close();
    }
    catch(std.exception.ErrnoException e){}
}
 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄

I don't understand why got Access Violation error. :-(
5 days ago
On Saturday, 18 March 2017 at 16:15:30 UTC, ooyu wrote:
> When i was uing parallel-foreach loop, got this error:
>
>  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
> object.Error@(0): Access Violation
> ----------------
> 0x0056CCB8 in _flushbu
> 0x005663C7 in fwrite
> 0x0041D39F in nothrow @nogc @trusted uint std.stdio.trustedFwrite!(char).trustedFwrite(shared(core.stdc.stdio._iobuf)*, const(char[]))
> at C:\D\dmd2\windows\bin\..\..\src\phobos\std\stdio.d(3836)
> 0x004611AA in D3std6format99__T14formattedWri at C:\D\dmd2\windows\bin\..\..\src\phobos\std\format.d(556)
>  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
>
> code is here:
>  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
> foreach( web_url; parallel(urls) ){
>     try{
>         auto rq = Request(); // using dlang-requests library
>         auto d = rq.get( std.uri.encode(web_url) ); // file url
>
>         File f = File(path_hash[web_url], "wb");
>         f.write( d.responseBody );
>         f.close();
>     }
>     catch(std.exception.ErrnoException e){}
> }
>  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
>
> I don't understand why got Access Violation error. :-(


Hello,
Also don't understand the reason and I can't reproduce this error. Can you try to pass ubyte[] to f.write() explicitly converting responseBody to array? Like

f.write(d.responseBody.data());


5 days ago
On Saturday, 18 March 2017 at 16:15:30 UTC, ooyu wrote:
> I don't understand why got Access Violation error. :-(

That looks like https://issues.dlang.org/show_bug.cgi?id=13727, though I thought a fix was included in recent DMD Windows versions.

Try using std.file.write.

5 days ago
On Saturday, 18 March 2017 at 20:57:59 UTC, ikod wrote:
> On Saturday, 18 March 2017 at 16:15:30 UTC, ooyu wrote:
>> When i was uing parallel-foreach loop, got this error:
>>
>>  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
>> object.Error@(0): Access Violation
>> ----------------
>> 0x0056CCB8 in _flushbu
>> 0x005663C7 in fwrite
>> 0x0041D39F in nothrow @nogc @trusted uint std.stdio.trustedFwrite!(char).trustedFwrite(shared(core.stdc.stdio._iobuf)*, const(char[]))
>> at C:\D\dmd2\windows\bin\..\..\src\phobos\std\stdio.d(3836)
>> 0x004611AA in D3std6format99__T14formattedWri at C:\D\dmd2\windows\bin\..\..\src\phobos\std\format.d(556)
>>  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
>>
>> code is here:
>>  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
>> foreach( web_url; parallel(urls) ){
>>     try{
>>         auto rq = Request(); // using dlang-requests library
>>         auto d = rq.get( std.uri.encode(web_url) ); // file url
>>
>>         File f = File(path_hash[web_url], "wb");
>>         f.write( d.responseBody );
>>         f.close();
>>     }
>>     catch(std.exception.ErrnoException e){}
>> }
>>  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
>>
>> I don't understand why got Access Violation error. :-(
>
>
> Hello,
> Also don't understand the reason and I can't reproduce this error. Can you try to pass ubyte[] to f.write() explicitly converting responseBody to array? Like
>
> f.write(d.responseBody.data());

No no, not work. :-(

when i trying this:
 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
File f = File(path_hash[web_url], "wb");
f.write( d.responseBody.data() );
f.close();
 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄

downloaded text file like a byte[] array:
 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
[255, 216, 255, 225, 32, 246, 69, 120, 105, 102, 0, 0, 77, 77, 0, 42, 0, 0, 0, 8, 0, 7, 1 ... // this is a file that downloaded and open notepad.exe
 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
5 days ago
On Saturday, 18 March 2017 at 22:27:27 UTC, Vladimir Panteleev wrote:
> On Saturday, 18 March 2017 at 16:15:30 UTC, ooyu wrote:
>> I don't understand why got Access Violation error. :-(
>
> That looks like https://issues.dlang.org/show_bug.cgi?id=13727, though I thought a fix was included in recent DMD Windows versions.
>
> Try using std.file.write.

Aha! Thank you.
I try again using std.file.write and input ubyte[] data.

 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
auto rq = Request();
auto d = rq.get( std.uri.encode(web_url) );
std.file.write(path_hash[web_url], d.responseBody.data);
 ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
working pretty :-)
4 days ago
On Sunday, 19 March 2017 at 00:46:29 UTC, ooyu wrote:
> On Saturday, 18 March 2017 at 22:27:27 UTC, Vladimir Panteleev wrote:
>> [...]
>
> Aha! Thank you.
> I try again using std.file.write and input ubyte[] data.
>
>  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
> auto rq = Request();
> auto d = rq.get( std.uri.encode(web_url) );
> std.file.write(path_hash[web_url], d.responseBody.data);
>  ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄
> working pretty :-)

It would be nice to know what actually solved problem.