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Problems with reading into buffer using boost::asio::async_read

Good day. I have a Types.hpp file in my project. And within it i have: .... namespace RC { ..... ..... struct ViewSettings { .... }; ..... } In the Server.cpp file I'm including this Types.hpp file, and i have there: class Session { ..... RC::ViewSettings tmp; boost::asio::async_read(socket_, boost::asio::buffer(&...

How to send large objects using boost::asio

Good day. I'm receiving a large objects via the net using boost::asio. And I have a code: for (int i = 1; i <= num_packets; i++) boost::asio::async_read(socket_, boost::asio::buffer(Obj + packet_size * (i - 1), packet_size), boost::bind(...)); Where My_Class * Obj. I'm in doubt if that approach possible (because i have a pointer t...

How to asynchronously read to std::string using Boost::asio?

Hello. I'm learning Boost::asio and all that async stuff. How can I asynchronously read to variable user_ of type std::string? Boost::asio::buffer(user_) works only with async_write(), but not with async_read(). It works with vector, so what is the reason for it not to work with string? Is there another way to do that besides declaring c...

Additional spaces in String having read text file to String using FileInputStream

Hi, I'm trying to read in a text file to a String variable. The text file has multiple lines. Having printed the String to test the "read-in" code, there is an additional space between every character. As I am using the String to generate character bigrams, the spaces are making the sample text useless. The code is try{ FileInputSt...

Ruby TCPSocket read_all

Is there a method that can act like read_all, as in instead of using TCPSocket.read(no_of_bytes), one can simply TCPSocket.read_all. I am sending objects first by YAML::dump'ing them then sending them but I don't know a way to get their size in bytes. Thanks in advance, ell. Oh and I am very, very new to any form of network programming s...

Reading from serial port with Boost Asio?

Hi! I'm going to check for incoming messages (data packages) on the serial port, using Boost Asio. Each message will start with a header that is one byte long, and will specify which type of the message has been sent. Each different type of message has an own length. The function I'm about to write should check for new incoming messages ...

Most Efficient Way to Write to Fixed Width File (Ruby)

I'm currently working with extremely large fixed width files, sometimes well over a million lines. I have written a method that can write over the files based on a set of parameters, but I think there has to be a more efficient way to accomplish this. The current code I'm using is: def self.writefiles(file_name, positions, update_valu...

Reading a certificate signing request with c#

Hello, I want to read the contents of a csr in c#, however I haven't found any way to do it in c#. What I've found was the namespace System.Security.Cryptography.X509Certificates, but it only handles existing certificates, not certificate requests:/ Can anyone give me an hint about it? Thanks in advance. Jorge ...

Buffering of stream data

Hello. I'm trying to develop a simple IRC bot. First I want to think out a proper design for this project. One of the things I'm wondering about right now is the read mechanism. I develop this bot on a Linux system. (Fedora 12) To read from a socket I use the system call "read()". I plan to use the reading functionality in the following...

Opennetcf read sms with c#

Does anyone know how I can read the SMS on my windows mobile 6 phone? I would like to do this in C#. I'm currently doing this with InTheHand: foreach (InTheHand.WindowsMobile.PocketOutlook.SmsMessage mess in sess.SmsAccount.SentItems) { if (mess.Received.Year == thisYear && mess.Received.Month == thisMonth) ...

Clojure: Equivalent to Common Lisp READ function?

Hi there. When I want to read in an S-expression stored in a file into a running Common Lisp program, I do the following: (defun load-file (filename) "Loads data corresponding to a s-expression in file with name FILENAME." (with-open-file (stream filename) (read stream))) If, for example, I have a file named foo.txt that cont...

how do i read strings from text files?

I like to read string from text file the text file consists of information below con = new MySqlConnection("server=localhost;user id=root; password=""; database=workplantype; pooling=false;"); i like to read server name such as"localhost" here and user id such as"root" here,how can i read this. ...

Linux, monitor read rates of files

I have a custom application which has a bunch of files open. I can see the file handles open by a process using "lsof" and I can see the files being accessed using "watch -d 'ls -alh'" and watching the mtime/ctime. However, I would like to see the rate of data that is being read/written to these files. IE: I need to determine if one file...

Opennetcf how to read sms messagestore with c#

I'm currently reading the messagestore with InTheHand, but I want to do this with OpenNetCF. Can someone post any samples? Here is how I do this with InTheHand: foreach (InTheHand.WindowsMobile.PocketOutlook.SmsMessage mess in sess.SmsAccount.SentItems) { if (mess.Received.Year == thisYear && mess.Re...

Delay PHP read long enough to ensure write

How do I delay a PHP script that writes to a text file and then reads from the same file long enough to make sure changes have been written before I attempt the read? ...

php - feof error

The file that I'm trying to read is a pgp-encrypted file. This is part of the process to decrypt it and I'm actually attempting to read the contents into a string so that I can then decrypt it. I'm not sure if that's the core problem here or not, but I'm getting an error: Warning: feof(): supplied argument is not a valid stream resou...

Java - Reading a csv file line by line - stuck with weird non-existent characters being read!

hello fellow java developers. I'm having a very strange issue. I'm trying to read a csv file line by line. Im at the point where Im just testing out the reading of the lines. ONly each time that I read a line, the line contains square characters between each character of text. I even saved the file as a txt file in wordpad and not...

Force blocking read after EAGAIN?

I have a file descriptor that is open for reading which may be non-blocking. What I need to do is simply read all data until reaching EOF and write that data to a writable file descriptor. As the process that performs this copying is not "aware" of anything that is going on around it, I don't think that I can do something useful while wa...

reloading app.config after writing

Hi, When I use this to write to my app.config file: Configuration config =ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); config.AppSettings.Settings["Wachtwoord"].Value = "Test"; config.Save(); ConfigurationManager.RefreshSection("appSettings"); I can read it again. But when i close and restart the program, t...

How to use Scanner to read silently from STDIN in Java?

Hi, Is it possible to use the Java Scanner to read from STDIN silently? I mean, without outputting any pressed chars to the terminal? ...