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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "librbd/AsioEngine.h"
#include "include/Context.h"
#include "include/neorados/RADOS.hpp"
#include "include/rados/librados.hpp"
#include "common/dout.h"
#include "librbd/asio/ContextWQ.h"
#define dout_subsys ceph_subsys_rbd
#undef dout_prefix
#define dout_prefix *_dout << "librbd::AsioEngine: " \
<< this << " " << __func__ << ": "
namespace librbd {
AsioEngine::AsioEngine(std::shared_ptr<librados::Rados> rados)
: m_rados_api(std::make_shared<neorados::RADOS>(
neorados::RADOS::make_with_librados(*rados))),
m_cct(m_rados_api->cct()),
m_io_context(m_rados_api->get_io_context()),
m_api_strand(std::make_unique<boost::asio::io_context::strand>(
m_io_context)),
m_context_wq(std::make_unique<asio::ContextWQ>(m_cct, m_io_context)) {
ldout(m_cct, 20) << dendl;
auto rados_threads = m_cct->_conf.get_val<uint64_t>("librados_thread_count");
auto rbd_threads = m_cct->_conf.get_val<uint64_t>("rbd_op_threads");
if (rbd_threads > rados_threads) {
// inherit the librados thread count -- but increase it if librbd wants to
// utilize more threads
m_cct->_conf.set_val_or_die("librados_thread_count",
std::to_string(rbd_threads));
m_cct->_conf.apply_changes(nullptr);
}
}
AsioEngine::AsioEngine(librados::IoCtx& io_ctx)
: AsioEngine(std::make_shared<librados::Rados>(io_ctx)) {
}
AsioEngine::~AsioEngine() {
ldout(m_cct, 20) << dendl;
m_api_strand.reset();
}
void AsioEngine::dispatch(Context* ctx, int r) {
dispatch([ctx, r]() { ctx->complete(r); });
}
void AsioEngine::post(Context* ctx, int r) {
post([ctx, r]() { ctx->complete(r); });
}
} // namespace librbd
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