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Protect boost process output read loop from deadlock

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As per the boost::process tutorials
This commit is contained in:
Geert Janssens 2021-01-29 12:03:10 +01:00 committed by John Ralls
parent f658ff409f
commit d79306f7db
1 changed files with 3 additions and 2 deletions
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5
libgnucash/quotes/gnc-quotes.cpp
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@ -53,12 +53,13 @@ GncQuotes::check (void)
bp::child process (perl_executable, "-w", fq_check, bp::std_out > out_stream, bp::std_err > err_stream); bp::child process (perl_executable, "-w", fq_check, bp::std_out > out_stream, bp::std_err > err_stream);
std::string stream_line; std::string stream_line;
while (getline (out_stream, stream_line)) while (process.running() && getline (out_stream, stream_line))
if (m_version.empty()) if (m_version.empty())
std::swap (m_version, stream_line); std::swap (m_version, stream_line);
else else
m_sources.push_back (std::move(stream_line)); m_sources.push_back (std::move(stream_line));
while (getline (err_stream, stream_line))
while (process.running() && getline (err_stream, stream_line))
m_error_msg.append(stream_line + "\n"); m_error_msg.append(stream_line + "\n");
process.wait(); process.wait();