#include <memory>
#include <exception>
#include <future>
+#include <array>
+#include <boost/process/detail/used_handles.hpp>
namespace boost { namespace process { namespace detail { namespace posix {
template<int p1, int p2, typename Buffer>
struct async_out_buffer : ::boost::process::detail::posix::handler_base_ext,
- ::boost::process::detail::posix::require_io_context
+ ::boost::process::detail::posix::require_io_context,
+ ::boost::process::detail::uses_handles
{
Buffer & buf;
std::shared_ptr<boost::process::async_pipe> pipe;
+ std::array<int, 4> get_used_handles()
+ {
+ const auto pp1 = p1 != -1 ? p1 : p2;
+ const auto pp2 = p2 != -1 ? p2 : p1;
+
+ if (pipe)
+ return {pipe->native_source(), pipe->native_sink(), pp1, pp2};
+ else //if pipe is not constructed, limit_ds is invoked before -> this also means on_exec_setup gets invoked before.
+ return {pp1, pp2, pp1, pp2};
+ }
+
async_out_buffer(Buffer & buf) : buf(buf)
{
{
auto pipe = this->pipe;
boost::asio::async_read(*pipe, buf,
- [pipe](const boost::system::error_code&, std::size_t size){});
+ [pipe](const boost::system::error_code&, std::size_t){});
this->pipe = nullptr;
std::move(*pipe).sink().close();
fut = promise->get_future();
}
template <typename Executor>
- inline void on_success(Executor &exec)
+ inline void on_success(Executor &)
{
- auto pipe = this->pipe;
+ auto pipe_ = this->pipe;
- auto buffer = this->buffer;
- auto promise = this->promise;
+ auto buffer_ = this->buffer;
+ auto promise_ = this->promise;
- boost::asio::async_read(*pipe, *buffer,
- [pipe, buffer, promise](const boost::system::error_code& ec, std::size_t size)
+ boost::asio::async_read(*pipe_, *buffer_,
+ [pipe_, buffer_, promise_](const boost::system::error_code& ec, std::size_t)
{
if (ec && (ec.value() != ENOENT))
{
std::error_code e(ec.value(), std::system_category());
- promise->set_exception(std::make_exception_ptr(process_error(e)));
+ promise_->set_exception(std::make_exception_ptr(process_error(e)));
}
else
{
- std::istream is (buffer.get());
+ std::istream is (buffer_.get());
Type arg;
- arg.resize(buffer->size());
- is.read(&*arg.begin(), buffer->size());
- promise->set_value(std::move(arg));
+ arg.resize(buffer_->size());
+ is.read(&*arg.begin(), buffer_->size());
+ promise_->set_value(std::move(arg));
}
});
- std::move(*pipe).sink().close();
+ std::move(*pipe_).sink().close();
this->pipe = nullptr;
}