Boost.Process is an accepted C++ library that handles processes in an OS-independent way and will be released with boost 1.64
The developer documentation can be found at http://www.boost.org/doc/libs/develop/doc/html/process.html
Questions tagged [boost-process]
104 questions
2
votes
2 answers
Getting exit code of boost::process::child under boost::asio::io_service?
The following program:
#include
#include
#include
int main() {
boost::asio::io_service ios;
boost::process::child c("/bin/ls");
ios.run();
std::cout << c.exit_code() <<…
Andrew Tomazos
- 66,139
- 40
- 186
- 319
2
votes
1 answer
Is there way to detach process from out-stream after some time?
I am using boost::process::child to spawn new process.
Start time of process which I am start isn't instant, so I have to wait some time until full initialization of it.
auto is_ptr = std::make_shared();
auto child_pr =…
Dcow
- 1,413
- 1
- 19
- 42
2
votes
1 answer
Passing boost::filesystem::path to boost::process::child causes exception on Windows
Example code below causes exception on Windows:
#include
#include
using namespace boost::filesystem;
using namespace boost::process;
int main()
{
child child(exe = search_path("app", { current_path() /…
Jonny Dens
- 49
- 1
2
votes
2 answers
How to avoid branching for a call where the number of arguments is dependent on conditionals?
I'm converting some code from using CreateProcess to use boost-process instead. I need to replace my CreateProcess usages with boost::process::child. The problem is they have incompatible ways for me to say "I want to use the default value". What…
darune
- 10,480
- 2
- 24
- 62
2
votes
1 answer
Connect to boost named pipe
I have this code:
boost::asio::io_service ios;
std::vector buf(20);
bp::async_pipe ap(ios, "\\\\.\\pipe\\SamplePipe");
boost::asio::async_read(ap, boost::asio::buffer(buf),
[](const boost::system::error_code &ec, std::size_t size)…
parean
- 305
- 3
- 13
2
votes
2 answers
Running a process using boost process in async mode with timeout
In the following code, I am trying to implement a program that runs a shell command and get the stdio, stderr and return code. I am doing it using boost process in the async mode as advised here.
namespace bp = boost::process;
class Process…
bisarch
- 1,388
- 15
- 31
2
votes
0 answers
Why is boost::process::spawn leaving zombies behind?
I am calling an external utility (advzip) from a code to run asynchronous recompression on written data. I use boost::process::spawn to do that:
// std::string f;
auto p=boost::process::search_path("advzip");
if(p.empty())…
eudoxos
- 18,545
- 10
- 61
- 110
2
votes
1 answer
Pipe buffer size in boost process
I am using boost::process to read asynchronously the output of a console application in Windows. I noticed that the reading events is triggered after about 4k of data every-time.
If I set my buffer 'buf' to a small value nothing changes: the event…
Abruzzo Forte e Gentile
- 14,423
- 28
- 99
- 173
2
votes
2 answers
Why does _popen work here, but boost::process does not?
I have the following working code using _popen, on windows,
m_pGNUPlot = _popen("/gnuplot/bin/gnuplot.exe", "w");
fprintf(m_pGNUPlot, "set term win\n");
fprintf(m_pGNUPlot, "set term pngcairo\n");
fprintf(m_pGNUPlot, "plot \"\Data.txt\" using 1:2…
Vivek Subramanian
- 380
- 2
- 11
2
votes
1 answer
Read child process stdout in a separate thread with BOOST process
I have a main program that uses boost process library to spawn a child process that prints
Hello World !
on its stdout every 5 seconds.
I would like to read/monitor the stdout of the child process in the main process when it becomes available…
sbunny
- 433
- 6
- 25
2
votes
1 answer
How to retrieve program output as soon as it printed?
I have a boost::process::child. There are many examples on how to get all its stdout or stderr in a single vector, but in this method you capture all data at once. But how to retrieve lines/characters as soon as they are printed in child process?
LPCWSTR
- 33
- 8
2
votes
2 answers
Boost::process output blank lines
I am developing an application where I need to launch and stop a variety of different executables depending on user input. I would like my "core" program to run as normal whilst these executables run, i.e not wait for their termination which could…
Rampartisan
- 427
- 6
- 19
2
votes
2 answers
boost::process how to know when a process exited "gracefully or not"?
While waiting for a boost::process::child, how can you know if it exited "gracefully or not"?
Let's say I create a processus:
boost::process::child child( "myprg.exe", "5000" );
child.wait();
int res = child.exit_code();
Where myprg.exe is:
int…
jpo38
- 20,821
- 10
- 70
- 151
2
votes
1 answer
Program hangs after calling std::future.get() using Boost.Process for asynchronous
I am creating a program that executes multiple executables asynchronously. My problem is that when I call the get() function from std::future, my program hangs up with no error.
I am using Boost.Process for managing the processes and also wxWidgets…
nametable
- 104
- 8
2
votes
0 answers
Boost.Process terminating a child process cleanly
I wanted to spawn a child process from my application such that their lifetimes are tied i.e. when my application is closed, the child process is also closed. To achieve the same I used boost::process::child::terminate().
The problem with using…
Arun
- 3,138
- 4
- 30
- 41