initial code repo

[stor4nfv.git] / src / ceph / src / msg / Messenger.cc

diff --git a/src/ceph/src/msg/Messenger.cc b/src/ceph/src/msg/Messenger.cc
new file mode 100644 (file)
index 0000000..6ab2862
--- /dev/null
+++ b/src/ceph/src/msg/Messenger.cc
@@ -0,0 +1,87 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include <random>
+#include <netdb.h>
+#include "include/Spinlock.h"
+
+#include "include/types.h"
+#include "Messenger.h"
+
+#include "msg/simple/SimpleMessenger.h"
+#include "msg/async/AsyncMessenger.h"
+#ifdef HAVE_XIO
+#include "msg/xio/XioMessenger.h"
+#endif
+
+Messenger *Messenger::create_client_messenger(CephContext *cct, string lname)
+{
+  std::string public_msgr_type = cct->_conf->ms_public_type.empty() ? cct->_conf->get_val<std::string>("ms_type") : cct->_conf->ms_public_type;
+  uint64_t nonce = 0;
+  get_random_bytes((char*)&nonce, sizeof(nonce));
+  return Messenger::create(cct, public_msgr_type, entity_name_t::CLIENT(),
+                          std::move(lname), nonce, 0);
+}
+
+Messenger *Messenger::create(CephContext *cct, const string &type,
+                            entity_name_t name, string lname,
+                            uint64_t nonce, uint64_t cflags)
+{
+  int r = -1;
+  if (type == "random") {
+    static std::random_device seed;
+    static std::default_random_engine random_engine(seed());
+    static Spinlock random_lock;
+
+    std::lock_guard<Spinlock> lock(random_lock);
+    std::uniform_int_distribution<> dis(0, 1);
+    r = dis(random_engine);
+  }
+  if (r == 0 || type == "simple")
+    return new SimpleMessenger(cct, name, std::move(lname), nonce);
+  else if (r == 1 || type.find("async") != std::string::npos)
+    return new AsyncMessenger(cct, name, type, std::move(lname), nonce);
+#ifdef HAVE_XIO
+  else if ((type == "xio") &&
+          cct->check_experimental_feature_enabled("ms-type-xio"))
+    return new XioMessenger(cct, name, std::move(lname), nonce, cflags);
+#endif
+  lderr(cct) << "unrecognized ms_type '" << type << "'" << dendl;
+  return nullptr;
+}
+
+void Messenger::set_endpoint_addr(const entity_addr_t& a,
+                                  const entity_name_t &name)
+{
+  size_t hostlen;
+  if (a.get_family() == AF_INET)
+    hostlen = sizeof(struct sockaddr_in);
+  else if (a.get_family() == AF_INET6)
+    hostlen = sizeof(struct sockaddr_in6);
+  else
+    hostlen = 0;
+
+  if (hostlen) {
+    char buf[NI_MAXHOST] = { 0 };
+    getnameinfo(a.get_sockaddr(), hostlen, buf, sizeof(buf),
+                NULL, 0, NI_NUMERICHOST);
+
+    trace_endpoint.copy_ip(buf);
+  }
+  trace_endpoint.set_port(a.get_port());
+}
+
+/*
+ * Pre-calculate desired software CRC settings.  CRC computation may
+ * be disabled by default for some transports (e.g., those with strong
+ * hardware checksum support).
+ */
+int Messenger::get_default_crc_flags(md_config_t * conf)
+{
+  int r = 0;
+  if (conf->ms_crc_data)
+    r |= MSG_CRC_DATA;
+  if (conf->ms_crc_header)
+    r |= MSG_CRC_HEADER;
+  return r;
+}