On Sat, Sep 15, 2012 at 5:05 PM, Boris Schaeling [via Boost] <ml-node+s2283326n4635818h36@n4.nabble.com> wrote:
On Sat, 15 Sep 2012 21:36:53 +0200, alfC <[hidden email]> wrote:
[...]So, the question is, is the boost.iostream really necessary? or is shown in the example for generality?
Boost.Process uses the types file_descriptor_source and file_descriptor_sink from Boost.Iostreams to wrap a file descriptor or Windows handle. For example, the initializers bind_stdin, bind_stdout and bind_stderr expect a file_descriptor_source or file_descriptor_sink to get a file descriptor or Windows handle which is then redirected and passed to the child process. I could extend those initializers though so that you could pass a file descriptor or Windows handle directly (without wrapping it in a Boost.Iostreams type)?
ok, thanks for the info. Is that a question for me? I am not familiar with these objects. Also I use Linux only for development. These objects didn't seem to be necessary in Boost.Process GSOC2010.
[...]ah, you are talking about that note, well the note says: "There is a Boost.Iostreams bug on Windows...", but all these issues are in Linux. I want to write a note in stackoverflow, can you confirm that the problem was a bug in Boost.Iostream in linux/posix also?
Hm, the bug in Boost.Iostreams was a Windows-only bug. I didn't experience any problems with any of the library's unit tests on Linux.
ok, since there is no conclusive solution, so maybe to end this thread let me file this as a possible bug (or confirm it is the expected behavior), the symptom is that the program never ends (linux, fedora 17, boost 1.48): #include <boost/process.hpp> // version 0.5 from http://www.highscore.de/boost/process0.5/process.zip #include <boost/iostreams/device/file_descriptor.hpp> #include <boost/iostreams/stream.hpp> #include <string> using namespace boost::process; using namespace boost::process::initializers; using namespace boost::iostreams; int main(){ boost::process::pipe p = create_pipe(); file_descriptor_sink sink(p.sink, close_handle); child c = execute(run_exe("/usr/bin/ls"), bind_stdout(sink)); file_descriptor_source source(p.source, close_handle); stream<file_descriptor_source> is(source); std::string s; while(std::getline(is, s)){ std::cout << "read: " << s << std::endl; } std::clog << "end" << std::endl; // never reach } -- View this message in context: http://boost.2283326.n4.nabble.com/How-to-bind-program-termination-with-end-... Sent from the Boost - Dev mailing list archive at Nabble.com.