You should not read if len === 0.
On Mon, Dec 9, 2013 at 7:02 PM, Felipe Silveira <cont...@felipems.com.br> wrote:
> Sorry, I didn't understand, what I need to do on the code?
>
> Att,
> Felipe Silveira Mendes
> Site - Twitter - Blog
> Web Developer
> (31) 8370-9090 (Claro)
> (31) 9433-9310 (Tim)
> cont...@felipems.com.br
>
>
>
>
> 2013/12/9 Fedor Indutny <fe...@indutny.com>
>>
>> Ok, so you create 0 length buffer here, and doing 0-size read :)
>>
>> That's totally not supported.
>>
>> On Mon, Dec 9, 2013 at 6:57 PM, Felipe Silveira <cont...@felipems.com.br>
>> wrote:
>> > Ooh Sorry yeah I forgot, here is:
>> >
>> > file changed from 101644 to 101650
>> > file changed from 101644 to 101650
>> > file changed from 101644 to 101650
>> > 6
>> > <Buffer 8c e0 0f 09 ac ad>
>> > 11
>> > 0
>> > <Buffer >
>> > 12
>> >
>> >
>> > Att,
>> > Felipe Silveira Mendes
>> > Site - Twitter - Blog
>> > Web Developer
>> > (31) 8370-9090 (Claro)
>> > (31) 9433-9310 (Tim)
>> > cont...@felipems.com.br
>> >
>> >
>> >
>> >
>> > 2013/12/9 Fedor Indutny <fe...@indutny.com>
>> >>
>> >> So, don't tell me it isn't printing anything else :) You have a lot of
>> >> console.log()s there. Can you paste them here?
>> >>
>> >> On Mon, Dec 9, 2013 at 6:46 PM, Felipe Silveira
>> >> <cont...@felipems.com.br>
>> >> wrote:
>> >> > I updated my node js to version v0.10.22 and installed nodejs-dbg for
>> >> > debug
>> >> > and getting the same error:
>> >> >
>> >> > fs.js:457
>> >> > binding.read(fd, buffer, offset, length, position, wrapper);
>> >> > ^
>> >> > Error: Offset is out of bounds
>> >> > at Object.fs.read (fs.js:457:11)
>> >> > at /var/www/read/test.js:16:15
>> >> > at Object.oncomplete (fs.js:107:15)
>> >> >
>> >> >
>> >> > The code of script:
>> >> >
>> >> > var fs = require('fs');
>> >> > var fName = 'test.txt';
>> >> > fNameStat = fs.statSync(fName);
>> >> > fs.watch(fName, function (evento, arquivo) {
>> >> > fNameStatChanged = fs.statSync(arquivo);
>> >> > console.log('file changed from ' + fNameStat.size + ' to ' +
>> >> > fNameStatChanged.size);
>> >> > fs.open(fName, 'r', function(err, fd) {
>> >> > var newDataLength = fNameStatChanged.size - fNameStat.size;
>> >> > console.log(newDataLength);
>> >> > var buffer = new Buffer(newDataLength);
>> >> > console.log(buffer);
>> >> > console.log(fd);
>> >> > if(newDataLength < 0 ){
>> >> > newDataLength = 0;
>> >> > }
>> >> > fs.read(fd, buffer, 0, newDataLength, null, function (err,
>> >> > bytesRead, newData) {
>> >> > if (err) {
>> >> > console.log(err);
>> >> > };
>> >> > console.log(newData.toString());
>> >> >
>> >> > });
>> >> > fNameStat = fs.statSync(fName);
>> >> > });
>> >> >
>> >> > });
>> >> >
>> >> >
>> >> > Att,
>> >> > Felipe Silveira Mendes
>> >> > Site - Twitter - Blog
>> >> > Web Developer
>> >> > (31) 8370-9090 (Claro)
>> >> > (31) 9433-9310 (Tim)
>> >> > cont...@felipems.com.br
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > 2013/12/9 Fedor Indutny <fe...@indutny.com>
>> >> >>
>> >> >> Depends on what ppa are you using. I'd recommend trying:
>> >> >> https://launchpad.net/~chris-lea/+archive/node.js/
>> >> >>
>> >> >> On Mon, Dec 9, 2013 at 2:37 PM, Felipe Silveira
>> >> >> <cont...@felipems.com.br>
>> >> >> wrote:
>> >> >> > Ok, How can I upgrade my node?
>> >> >> > I'm using ubuntu 10.10 and can I do it with apt-get or aptitude?
>> >> >> > What comands I need to do?
>> >> >> >
>> >> >> > Att,
>> >> >> > Felipe Silveira Mendes
>> >> >> > Site - Twitter - Blog
>> >> >> > Web Developer
>> >> >> > (31) 8370-9090 (Claro)
>> >> >> > (31) 9433-9310 (Tim)
>> >> >> > cont...@felipems.com.br
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > 2013/12/9 Fedor Indutny <fe...@indutny.com>
>> >> >> >>
>> >> >> >> Hm... this version is really really old, may I ask you to try
>> >> >> >> upgrading to at least v0.6.21 ? (Would be much better to give a
>> >> >> >> try
>> >> >> >> to
>> >> >> >> latest 0.10, or 0.8).
>> >> >> >>
>> >> >> >> On Mon, Dec 9, 2013 at 2:29 PM, Felipe Silveira
>> >> >> >> <cont...@felipems.com.br>
>> >> >> >> wrote:
>> >> >> >> > Yes yes, i'm loggin just what I got on the console...the node
>> >> >> >> > version
>> >> >> >> > is
>> >> >> >> > v0.6.17
>> >> >> >> >
>> >> >> >> > Att,
>> >> >> >> > Felipe Silveira Mendes
>> >> >> >> > Site - Twitter - Blog
>> >> >> >> > Web Developer
>> >> >> >> > (31) 8370-9090 (Claro)
>> >> >> >> > (31) 9433-9310 (Tim)
>> >> >> >> > cont...@felipems.com.br
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > 2013/12/9 Fedor Indutny <fe...@indutny.com>
>> >> >> >> >>
>> >> >> >> >> You're logging much more data than this, are you sure it
>> >> >> >> >> prints
>> >> >> >> >> out
>> >> >> >> >> only the error? And also you forgot to include version number
>> >> >> >> >> of
>> >> >> >> >> node.js that you're using.
>> >> >> >> >>
>> >> >> >> >> On Mon, Dec 9, 2013 at 2:23 PM, Felipe Silveira
>> >> >> >> >> <cont...@felipems.com.br>
>> >> >> >> >> wrote:
>> >> >> >> >> > Console
>> >> >> >> >> >
>> >> >> >> >> > fs.js:267
>> >> >> >> >> > binding.read(fd, buffer, offset, length, position,
>> >> >> >> >> > wrapper);
>> >> >> >> >> > ^
>> >> >> >> >> > Error: Offset is out of bounds
>> >> >> >> >> > at Object.read (fs.js:267:11)
>> >> >> >> >> > at Object.oncomplete (/var/www/leitor/teste.js:16:15)
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> > Node Version v0.6.17
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> > Att,
>> >> >> >> >> > Felipe Silveira Mendes
>> >> >> >> >> > Site - Twitter - Blog
>> >> >> >> >> > Web Developer
>> >> >> >> >> > (31) 8370-9090 (Claro)
>> >> >> >> >> > (31) 9433-9310 (Tim)
>> >> >> >> >> > cont...@felipems.com.br
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> > 2013/12/9 Fedor Indutny <fe...@indutny.com>
>> >> >> >> >> >>
>> >> >> >> >> >> What does it log to console? What node.js version are you
>> >> >> >> >> >> using?
>> >> >> >> >> >>
>> >> >> >> >> >> On Mon, Dec 9, 2013 at 2:17 PM, Felipe Silveira
>> >> >> >> >> >> <cont...@felipems.com.br>
>> >> >> >> >> >> wrote:
>> >> >> >> >> >> > Thank bro to help,
>> >> >> >> >> >> >
>> >> >> >> >> >> > I change to this code and get the same error:
>> >> >> >> >> >> >
>> >> >> >> >> >> > var fs = require('fs');
>> >> >> >> >> >> > var fName = 'text.txt';
>> >> >> >> >> >> > fNameStat = fs.statSync(fName);
>> >> >> >> >> >> > fs.watch(fName, function (evento, arquivo) {
>> >> >> >> >> >> > fNameStatChanged = fs.statSync(arquivo);
>> >> >> >> >> >> > console.log('file changed from ' + fNameStat.size + ' to
>> >> >> >> >> >> > ' +
>> >> >> >> >> >> > fNameStatChanged.size);
>> >> >> >> >> >> > fs.open(fName, 'r', function(err, fd) {
>> >> >> >> >> >> > var newDataLength = fNameStatChanged.size -
>> >> >> >> >> >> > fNameStat.size;
>> >> >> >> >> >> > console.log(newDataLength);
>> >> >> >> >> >> > var buffer = new Buffer(newDataLength);
>> >> >> >> >> >> > console.log(buffer);
>> >> >> >> >> >> > console.log(fd);
>> >> >> >> >> >> > if(newDataLength < 0 ){
>> >> >> >> >> >> > newDataLength = 0;
>> >> >> >> >> >> > }
>> >> >> >> >> >> > fs.read(fd, buffer, 0, newDataLength, null,
>> >> >> >> >> >> > function
>> >> >> >> >> >> > (err,
>> >> >> >> >> >> > bytesRead, newData) {
>> >> >> >> >> >> > if (err) {
>> >> >> >> >> >> > console.log(err);
>> >> >> >> >> >> > };
>> >> >> >> >> >> > console.log(newData.toString());
>> >> >> >> >> >> >
>> >> >> >> >> >> > });
>> >> >> >> >> >> > fNameStat = fs.statSync(fName);
>> >> >> >> >> >> > });
>> >> >> >> >> >> >
>> >> >> >> >> >> > });
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> >> >> >> >> >> > On Monday, December 9, 2013 8:00:56 AM UTC-2, Fedor
>> >> >> >> >> >> > Indutny
>> >> >> >> >> >> > wrote:
>> >> >> >> >> >> >>
>> >> >> >> >> >> >> Hello!
>> >> >> >> >> >> >>
>> >> >> >> >> >> >> Perhaps, you are trying to create a Buffer of negative
>> >> >> >> >> >> >> length?
>> >> >> >> >> >> >>
>> >> >> >> >> >> >> Also, I believe, that you do not need to pass encoding
>> >> >> >> >> >> >> argument
>> >> >> >> >> >> >> to
>> >> >> >> >> >> >> the
>> >> >> >> >> >> >> Buffer's constructor if you're creating just a
>> >> >> >> >> >> >> fixed-size
>> >> >> >> >> >> >> buffer.
>> >> >> >> >> >> >>
>> >> >> >> >> >> >> On Mon, Dec 9, 2013 at 1:58 PM, Felipe Silveira
>> >> >> >> >> >> >> <con...@felipems.com.br>
>> >> >> >> >> >> >> wrote:
>> >> >> >> >> >> >> > Hi There,
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> > I'm trying to tail a file in nodejs, the code is this:
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> > var fs = require('fs');
>> >> >> >> >> >> >> > var fName = 'file.txt';
>> >> >> >> >> >> >> > fNameStat = fs.statSync(fName);
>> >> >> >> >> >> >> > fs.watch(fName, function (evento, arquivo) {
>> >> >> >> >> >> >> > fNameStatChanged = fs.statSync(arquivo);
>> >> >> >> >> >> >> > console.log('file changed from ' + fNameStat.size + '
>> >> >> >> >> >> >> > to
>> >> >> >> >> >> >> > ' +
>> >> >> >> >> >> >> > fNameStatChanged.size);
>> >> >> >> >> >> >> > fs.open(fName, 'r', function(err, fd) {
>> >> >> >> >> >> >> > var newDataLength = fNameStatChanged.size -
>> >> >> >> >> >> >> > fNameStat.size;
>> >> >> >> >> >> >> > console.log(newDataLength);
>> >> >> >> >> >> >> > var buffer = new Buffer(newDataLength,
>> >> >> >> >> >> >> > 'utf-8');
>> >> >> >> >> >> >> > console.log(buffer);
>> >> >> >> >> >> >> > console.log(fd);
>> >> >> >> >> >> >> > fs.read(fd, buffer, 0, newDataLength, null,
>> >> >> >> >> >> >> > function
>> >> >> >> >> >> >> > (err,
>> >> >> >> >> >> >> > bytesRead, newData) {
>> >> >> >> >> >> >> > if (err) {
>> >> >> >> >> >> >> > console.log(err);
>> >> >> >> >> >> >> > };
>> >> >> >> >> >> >> > console.log(newData.toString());
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> > });
>> >> >> >> >> >> >> > fNameStat = fs.statSync(fName);
>> >> >> >> >> >> >> > });
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> > });
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> > I'm getting this error:
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> > fs.js:267
>> >> >> >> >> >> >> > binding.read(fd, buffer, offset, length, position,
>> >> >> >> >> >> >> > wrapper);
>> >> >> >> >> >> >> > ^
>> >> >> >> >> >> >> > Error: Offset is out of bounds
>> >> >> >> >> >> >> > at Object.read (fs.js:267:11)
>> >> >> >> >> >> >> > at Object.oncomplete (/var/www/read/test.js:13:15)
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> > Anyone know whats happened?
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> > Regards,
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> > Felipe Silveira Mendes
>> >> >> >> >> >> >> > Site - Twitter - Blog
>> >> >> >> >> >> >> > Web Developer
>> >> >> >> >> >> >> > (31) 8370-9090 (Claro)
>> >> >> >> >> >> >> > (31) 9433-9310 (Tim)
>> >> >> >> >> >> >> > con...@felipems.com.br
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> > --
>> >> >> >> >> >> >> > --
>> >> >> >> >> >> >> > Job Board: http://jobs.nodejs.org/
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>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> >
>> >> >> >> >> >> >> >
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