Oh ! Thanks! THAT WORKS!
2012/6/6 Nathan Rajlich <nat...@tootallnate.net>
> Try changing the String::New("Buffer") part to String::NewSymbol("Buffer").
>
> Idk why, but that fixed some seg faults I was experiencing using similar
> code.
>
> On Wed, Jun 6, 2012 at 12:11 AM, Denys Khanzhiyev <xden...@gmail.com>wrote:
>
>> I definetelly shoot myself in my leg somewhere
>>
>> when i change code like that
>>
>> HandleScope scope;
>> Local<Value> js_field = Local<Value>::New(Null());
>>
>> ....
>>
>> js_field = String::New((const char*)(vary2->vary_string));
>>
>>
>>
>> ...
>> return scope.Close(js_field);
>>
>> to code like that
>>
>> HandleScope scope;
>> Local<Value> js_field = Local<Value>::New(Null());
>>
>>
>>
>> ....
>> Buffer *slowBuffer = Buffer::New(vary2->vary_length);
>> memcpy(Buffer::Data(slowBuffer), (const char*)(vary2->vary_string),
>> vary2->vary_length);
>>
>>
>> Local<Object> globalObj = Context::GetCurrent()->Global();
>>
>>
>> Local<Function> bufferConstructor =
>> Local<Function>::Cast(globalObj->Get(String::New("Buffer")));
>>
>>
>> Handle<Value> constructorArgs[3] = { slowBuffer->handle_,
>> Integer::New(vary2->vary_length), Integer::New(0) };
>>
>>
>> js_field = bufferConstructor->NewInstance(3, constructorArgs);
>>
>> ...
>> return scope.Close(js_field);
>>
>> i.e. returns Buffer instead of String.
>> Node strarts to fall with segmentation fault unconditionally. I call
>> that method in a loop. The problem may appear after 100 iterations or after
>> 10000. The input data are same for both cases.
>> Am I doing something wrong?
>>
>>
>> 2012/6/5 Denys Khanzhiyev <xden...@gmail.com>
>>
>>> gdb --args ./node_g ../node_firebird/issues/issue10.js
>>> GNU gdb (GDB) CentOS (7.0.1-42.el5.centos)
>>> Copyright (C) 2009 Free Software Foundation, Inc.
>>> License GPLv3+: GNU GPL version 3 or later <
>>> http://gnu.org/licenses/gpl.html>
>>> This is free software: you are free to change and redistribute it.
>>> There is NO WARRANTY, to the extent permitted by law. Type "show
>>> copying"
>>> and "show warranty" for details.
>>> This GDB was configured as "i386-redhat-linux-gnu".
>>> For bug reporting instructions, please see:
>>> <http://www.gnu.org/software/gdb/bugs/>...
>>> Reading symbols from /root/node/node_g...(no debugging symbols
>>> found)...done.
>>>
>>> Trying to catch segfault and all I get in backtrace
>>>
>>> Program received signal SIGSEGV, Segmentation fault.
>>> 0x578bbeaa in ?? ()
>>> (gdb) backtrace
>>> #0 0x578bbeaa in ?? ()
>>> #1 0x4aaeb361 in ?? ()
>>> #2 0x478517a1 in ?? ()
>>> #3 0x578bbe61 in ?? ()
>>> #4 0x0000000c in ?? ()
>>> #5 0x578acf46 in ?? ()
>>> #6 0x00000000 in ?? ()
>>>
>>> ]# ./node_g -v
>>> v0.6.13
>>>
>>> built with
>>> ./configure --debug
>>> make
>>>
>>> any help?
>>>
>>> Thank you!
>>>
>>
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