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Questions tagged [boost-asio]

Boost.Asio is a cross-platform C++ library for network and low-level I/O programming that provides developers with a consistent asynchronous model using a modern C++ approach.

Most programs interact with the outside world in some way, whether it be via a file, a network, a serial cable, or the console. Sometimes, as is the case with networking, individual I/O operations can take a long time to complete. This poses particular challenges to application development. The Boost.Asio library is intended for programmers using C++ for systems programming, where access to operating system functionality such as networking is often required.

More information on Boost.Asio can be found here:

Notable alternatives for Boost.Asio:

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boost::asio error "The I/O operation has been aborted..."

I am receiving this error message "The I/O operation has been aborted because of either a thread exit or an application request" when using boost::asio::socket::async_read_some() What does the error mean? What should I be looking for? Here is the…
ravenspoint
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ASIO UDP: class std::allocator has no member named ‘construct’

I have followed this example to set up an asynchronous UDP receive. But it fails on compilation: g++ -Wall -Wconversion -Wfatal-errors -Wextra -std=c++11 test1.cpp Error message: In file included from /usr/include/c++/5/ext/alloc_traits.h:36:0, …
ar2015
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How asio deal with SIGPIPE?

Asio has code to ignore SIGPIPE which is in Signal_init.hpp, however there is a macro warp it in io_service.hpp: #elif defined(__sun) || defined(__QNX__) || defined(__hpux) || defined(_AIX) \ || defined(__osf__) I compile in Ubuntu found the…
jean
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Replacing select() with boost::asio::io_service

I am trying to replace the main loop in my program ( while(1)...select() ) with boost::asio::io_service.run(). The program has a couple sockets open, which were monitored by select(). The tricky part is that the FD_SET in the select statement has…
Rusty
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Boost asio serial port "end of file"

I am trying to read serial data coming from arduino, but when I run my program it only reads all the data in the buffer, the data that was actually send before the program started. And then i terminates with the following error: terminate called…
Rasmus Tollund
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How to fix Undefined symbols for architecture x86_64, Boost Asio 1.58

I am working on a little software that needed a small server that listens to http requests. Unfortunately, the productive server uses https only, so the requests fail. I've search the web and found this example:…
user5444681
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Segmentation Fault running boost example

I am trying to run the autoecho program that uses boost::asio and boost::fiber. I am using the following: Ubuntu 16 cmake 3.9.1 boost 1_65_0 That program depends on a local copy of round_robin.hpp, yield.hpp and detail/yield.hpp. I have downloaded…
Mark
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Boost asio handler that does not keep the io_service running

I want to add a signal handler to my boost io_service, allowing the application to shut down cleanly when the user presses Ctrl-C. This is of course easily done by stopping the loop, something like this: boost::asio::io_service…
Martijn Otto
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Boost ASIO blocking callbacks

Is it safe (or reasonable) for a the callback from asio to block? void Connection::start() { /* Assume std::string buffer; that has data to write. */ auto callbackFn = boost::bind(&Connection::callback, shared_from_this(), …
Braaedy
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websocketpp asio listen error

I have a multi-threaded websocketpp server. With no clients connected when I quit the program and relaunch, it works with no issues. However when a client is connected and I quit/relaunch, the program throws this error [2017-08-06 15:36:05] [info]…
coolarm
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boost::asio::buffer how to iterate over the bytes

I am trying to implement a function that takes a boost::const_buffer and iterates over its bytes in a loop. I saw that there is a buffers iterator, but it seems to be applicable for boost::asio::buffers_type. I didn't find any examples for simple…
Mopparthy Ravindranath
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With boost::asio, do I need to notify_fork to do a simple fork/exec

It's unclear to me whether I need to use notify_fork when all I'm going to do is do a simple fork/exec to launch another program. My guess is that the intended use of notify_fork is to deal with a situation of fork only, as in the case of "process…
Tom Quarendon
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"Wrong Version Number" error using Boost ASIO & SSL (C++)

I'm trying to connect to a server (written in Golang) using Boost Asio. I can connect and read/write fine unencrypted, but I can't seem to get SSL support to work. Basically, whenever I attempt a handshake I receive a "wrong version number". Here's…
GrandmasterB
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Boost ASIO server - detecting idle connection

The intention of this post is to figure out how to implement a Keep-Alive timeout on a Boost ASIO based HTTP server. There are 2 parts to this - When the client has closed the connection When the client connection is inactive I believe, 1) above…
user1474341
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testing using google test multithreading

I need to tests multithreading code using google tests. Is any method to stop/block google test thread execution (I mean in the same test) until an event is happening? And after that event happens to go further with the test execution. Thank you
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