Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/src/crimson/net/Socket.h b/src/crimson/net/Socket.h
new file mode 100644
index 00000000..c1a2ed59
--- /dev/null
+++ b/src/crimson/net/Socket.h
@@ -0,0 +1,59 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#pragma once
+
+#include <seastar/core/reactor.hh>
+#include <seastar/net/packet.hh>
+
+#include "include/buffer.h"
+
+namespace ceph::net {
+
+class Socket
+{
+  const seastar::shard_id sid;
+  seastar::connected_socket socket;
+  seastar::input_stream<char> in;
+  seastar::output_stream<char> out;
+
+  /// buffer state for read()
+  struct {
+    bufferlist buffer;
+    size_t remaining;
+  } r;
+
+ public:
+  explicit Socket(seastar::connected_socket&& _socket)
+    : sid{seastar::engine().cpu_id()},
+      socket(std::move(_socket)),
+      in(socket.input()),
+      out(socket.output()) {}
+  Socket(Socket&& o) = delete;
+
+  /// read the requested number of bytes into a bufferlist
+  seastar::future<bufferlist> read(size_t bytes);
+  using tmp_buf = seastar::temporary_buffer<char>;
+  using packet = seastar::net::packet;
+  seastar::future<tmp_buf> read_exactly(size_t bytes);
+
+  seastar::future<> write(packet&& buf) {
+    return out.write(std::move(buf));
+  }
+  seastar::future<> flush() {
+    return out.flush();
+  }
+  seastar::future<> write_flush(packet&& buf) {
+    return out.write(std::move(buf)).then([this] { return out.flush(); });
+  }
+
+  /// Socket can only be closed once.
+  seastar::future<> close() {
+    return seastar::smp::submit_to(sid, [this] {
+        return seastar::when_all(
+          in.close(), out.close()).discard_result();
+      });
+  }
+};
+
+} // namespace ceph::net