* Adds conditional build support.
* Adds BLKIN_* macro wrappers to reduce need for ifdef WITH_BLKIN.
* Adds blkin header include.
* Adds message infrastructure for blkin tracing.
* Adds blkin trace events and keyvals to OpTracker.
* Adds osd, pg, journal, and filestore blkin traces to OpTracker/OpRequest.
These changes are Marios', with the following exceptions:
* split out initial support for Marios' additional tracing changes
* conditional build and BLKIN_* macro wrappers
* blkin include path is "blkin/ztracer.hpp"
* only Message.h includes blkin, as others include Message.h
* commented code has been removed
* unused lname var/code in SimpleMessenger has been removed
* excluded messenger_trace because it appears not to be used
* braces added to conditionals to match recommended coding style
note: did not change member variable names to use m_ prefix
since member vars in same class did not
* Ref suffix added to TrackedOp shared_ptr vars to be consistent
note: did not add -Ref suffix to ZTrace*Ref vars in Message
* TrackedOp trace creation methods are virtual, implemented in OpRequest
* avoid faults due to non-existent traces
Check if osd_trace exists when creating a pg_trace, etc.
Return true only if trace creation was successful.
Use dout() if trace_osd, trace_pg, etc. fail, in order to ease debugging.
Signed-off-by: Marios-Evaggelos Kogias <marioskogias@xxxxxxxxx>
Signed-off-by: Filippos Giannakos <philipgian@xxxxxxxx>
Signed-off-by: Andrew Shewmaker <agshew@xxxxxxxxx>
Signed-off-by: Chendi.Xue <chendi.xue@xxxxxxxxx>
---
src/common/TrackedOp.cc | 82 ++++++++++++++++++
src/common/TrackedOp.h | 26 ++++++
src/common/blkin_wrapper.h | 171 ++++++++++++++++++++++++++++++++++++++
src/msg/Message.cc | 76 +++++++++++++++++
src/msg/Message.h | 25 ++++++
src/msg/msg_types.cc | 23 ++++-
src/msg/msg_types.h | 1 +
src/msg/simple/Pipe.cc | 31 +++++++
src/msg/simple/Pipe.h | 4 +
src/msg/simple/SimpleMessenger.cc | 1 +
10 files changed, 437 insertions(+), 3 deletions(-)
create mode 100644 src/common/blkin_wrapper.h
diff --git a/src/common/TrackedOp.cc b/src/common/TrackedOp.cc
index 32dbc53..611911f 100644
--- a/src/common/TrackedOp.cc
+++ b/src/common/TrackedOp.cc
@@ -293,8 +293,22 @@ void OpTracker::_mark_event(TrackedOp *op, const string &evt,
}
+#ifdef WITH_BLKIN
+void OpTracker::trace_event(TrackedOp *op, TrackedOpTraceRef t, const string &evt, TrackedOpEndpointRef ep)
+{
+ t->event(evt, ep);
+}
+
+void OpTracker::trace_keyval(TrackedOp *op, TrackedOpTraceRef t, const string &key,
+ const string &val, TrackedOpEndpointRef ep)
+{
+ t->keyval(key, val, ep);
+}
+#endif
+
void OpTracker::RemoveOnDelete::operator()(TrackedOp *op) {
op->mark_event("done");
+ BLKIN_OP_TRACE_EVENT(op, osd, "span_ended");
if (!tracker->tracking_enabled) {
op->_unregistered();
delete op;
@@ -332,3 +346,71 @@ void TrackedOp::dump(utime_t now, Formatter *f) const
f->close_section();
}
}
+
+#ifdef WITH_BLKIN
+void TrackedOp::trace_osd(string event)
+{
+ if (!osd_trace) {
+ dout(5) << "trace_osd failed, osd_trace doesn't exist, event: " << event << dendl;
+ return;
+ }
+
+ tracker->trace_event(this, osd_trace, event, osd_trace->get_endpoint());
+}
+
+void TrackedOp::trace_osd(string key, string val)
+{
+ if (!osd_trace) {
+ dout(5) << "trace_osd failed, osd_trace doesn't exist, key: " << key << " val: " << val << dendl;
+ return;
+ }
+
+ tracker->trace_keyval(this, osd_trace, key, val, osd_trace->get_endpoint());
+}
+
+void TrackedOp::trace_pg(string event)
+{
+ if (!pg_trace) {
+ dout(5) << "trace_pg failed, pg_trace doesn't exist, event: " << event << dendl;
+ return;
+ } else if (!osd_trace) {
+ dout(5) << "trace_pg failed, osd_trace doesn't exist, event: " << event << dendl;
+ return;
+ }
+
+ tracker->trace_event(this, osd_trace, event, pg_trace->get_endpoint());
+}
+
+void TrackedOp::get_pg_trace_info(struct blkin_trace_info *info)
+{
+ if (!pg_trace) {
+ dout(5) << "get_pg_trace failed, pg_trace doesn't exist" << dendl;
+ return;
+ } else if (!osd_trace) {
+ dout(5) << "get_pg_trace failed, osd_trace doesn't exist" << dendl;
+ return;
+ }
+
+ osd_trace->get_trace_info(info);
+}
+
+void TrackedOp::trace_journal(string event)
+{
+ if (!journal_trace) {
+ dout(5) << "trace_journal failed, journal_trace doesn't exist, event: " << event << dendl;
+ return;
+ }
+
+ tracker->trace_event(this, journal_trace, event, journal_trace->get_endpoint());
+}
+
+void TrackedOp::trace_filestore(string event)
+{
+ if (!filestore_trace) {
+ dout(5) << "trace_filestore failed, filestore_trace doesn't exist, event: " << event << dendl;
+ return;
+ }
+
+ tracker->trace_event(this, filestore_trace, event, filestore_trace->get_endpoint());
+}
+#endif // WITH_BLKIN
diff --git a/src/common/TrackedOp.h b/src/common/TrackedOp.h
index 42d1eaf..fc861f7 100644
--- a/src/common/TrackedOp.h
+++ b/src/common/TrackedOp.h
@@ -116,6 +116,11 @@ public:
void mark_event(TrackedOp *op, const string &evt,
utime_t time = ceph_clock_now(g_ceph_context));
+#ifdef WITH_BLKIN
+ void trace_event(TrackedOp *op, TrackedOpTraceRef t, const string &evt, TrackedOpEndpointRef ep);
+ void trace_keyval(TrackedOp *op, TrackedOpTraceRef t, const string &key,
+ const string &val, TrackedOpEndpointRef ep);
+#endif
void on_shutdown() {
history.on_shutdown();
}
@@ -150,6 +155,13 @@ protected:
string current; /// the current state the event is in
uint64_t seq; /// a unique value set by the OpTracker
+#ifdef WITH_BLKIN
+ TrackedOpTraceRef osd_trace;
+ TrackedOpTraceRef pg_trace;
+ TrackedOpTraceRef journal_trace;
+ TrackedOpTraceRef filestore_trace;
+#endif
+
uint32_t warn_interval_multiplier; // limits output of a given op warning
TrackedOp(OpTracker *_tracker, const utime_t& initiated) :
@@ -191,6 +203,20 @@ public:
return events.rbegin()->second.c_str();
}
void dump(utime_t now, Formatter *f) const;
+
+#ifdef WITH_BLKIN
+ virtual bool create_osd_trace(TrackedOpEndpointRef ep) { return false; }
+ virtual bool create_pg_trace(TrackedOpEndpointRef ep) { return false; }
+ virtual bool create_journal_trace(TrackedOpEndpointRef ep) { return false; }
+ virtual bool create_filestore_trace(TrackedOpEndpointRef ep) { return false; }
+ void trace_osd(string event);
+ void trace_osd(string key, string val);
+ void trace_pg(string event);
+ void get_pg_trace_info(struct blkin_trace_info *info);
+ void trace_journal(string event);
+ void trace_filestore(string event);
+ TrackedOpTraceRef get_osd_trace() { return osd_trace; };
+#endif // WITH_BLKIN
};
#endif
diff --git a/src/common/blkin_wrapper.h b/src/common/blkin_wrapper.h
new file mode 100644
index 0000000..04b8ced
--- /dev/null
+++ b/src/common/blkin_wrapper.h
@@ -0,0 +1,171 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#ifdef WITH_BLKIN
+
+// string helper
+#define BLKIN_OSS(OSS, A) \
+ ostringstream OSS; \
+ OSS << A;
+
+// src/msg/Message.h
+#define BLKIN_GET_MASTER(MT) \
+ ZTracer::ZTraceRef MT = get_master_trace();
+
+#define BLKIN_MSG_GET_MASTER(MT, MSG) \
+ ZTracer::ZTraceRef MT = (MSG)->get_master_trace();
+
+#define BLKIN_ZTRACE_INIT() do { ZTracer::ztrace_init(); } while(0)
+
+#define BLKIN_INIT_TRACE(T) do { init_trace_info(T); } while(0)
+
+#define BLKIN_MSG_INIT_TRACE(M, T) do { (M)->init_trace_info(T); } while(0)
+
+#define BLKIN_MSG_INIT_TRACE_IF(C, M, T) \
+ do { if (C) (M)->init_trace_info(T); } while(0)
+
+#define BLKIN_MSG_DO_INIT_TRACE() \
+ struct blkin_trace_info tinfo; \
+ tinfo.trace_id = 0; \
+ tinfo.span_id = 0; \
+ tinfo.parent_span_id = 0;
+
+#define BLKIN_MSG_ENCODE_TRACE() \
+ do { \
+ if (mt) { \
+ struct blkin_trace_info tinfo; \
+ mt->get_trace_info(&tinfo); \
+ ::encode(tinfo.trace_id, payload); \
+ ::encode(tinfo.span_id, payload); \
+ ::encode(tinfo.parent_span_id, payload); \
+ } else { \
+ int64_t zero = 0; \
+ ::encode(zero, payload); \
+ ::encode(zero, payload); \
+ ::encode(zero, payload); \
+ }; \
+ } while(0)
+
+#define BLKIN_MSG_DECODE_TRACE(V) \
+ do { \
+ if (header.version >= V) { \
+ ::decode(tinfo.trace_id, p); \
+ ::decode(tinfo.span_id, p); \
+ ::decode(tinfo.parent_span_id, p); \
+ }; \
+ init_trace_info(&tinfo); \
+ } while(0)
+
+#define BLKIN_MSG_CHECK_SPAN() \
+ do { \
+ struct blkin_trace_info tinfo; \
+ ZTracer::ZTraceRef mt = req->get_master_trace(); \
+ assert(mt != NULL); \
+ mt->get_trace_info(&tinfo); \
+ } while(0)
+
+#define BLKIN_MSG_INFO_DECL(TYPE) \
+ void trace_msg_info() \
+ { \
+ assert(master_trace != NULL); \
+ ostringstream oss; \
+ oss << get_reqid(); \
+ master_trace->keyval("Type", TYPE); \
+ master_trace->keyval("Reqid", oss.str()); \
+ }
+
+#define BLKIN_MSG_END_DECL(TYPE) \
+ bool create_message_endpoint() \
+ { \
+ message_endpoint = ZTracer::create_ZTraceEndpoint("0.0.0.0", 0, TYPE); \
+ assert(message_endpoint != NULL); \
+ return true; \
+ }
+
+#define BLKIN_MSG_END(EP, IP, PORT, NAME) \
+ do { \
+ EP = ZTracer::create_ZTraceEndpoint(IP, PORT, NAME); \
+ } while(0)
+
+#define BLKIN_MSG_TRACE_EVENT(M, E) do { (M)->trace(E); } while(0)
+
+#define BLKIN_MSG_TRACE_EVENT_IF(C, M, E) do { if (C) (M)->trace(E); } while(0)
+
+#define BLKIN_MSG_TRACE_KEYVAL(M, K, V) do { (M)->trace(K, V); } while(0)
+
+// src/msg/Pipe.h
+#define BLKIN_PIPE_ENDPOINT() do { set_endpoint(); } while(0)
+
+// src/common/TrackedOp.h
+typedef ZTracer::ZTraceEndpointRef TrackedOpEndpointRef;
+typedef ZTracer::ZTraceRef TrackedOpTraceRef;
+
+#define BLKIN_END_REF(X) TrackedOpEndpointRef X;
+#define BLKIN_TRACE_REF(X) TrackedOpTraceRef X;
+
+#define BLKIN_CREATE_TRACE(REF, ...) \
+ do { REF = ZTracer::create_ZTrace(__VA_ARGS__); } while(0)
+
+#define BLKIN_OP_CREATE_TRACE(OP, TYPE, EP) \
+ do { (OP)->create_ ## TYPE ## _trace(EP); } while(0)
+
+#define BLKIN_OP_TRACE_EVENT(OP, TYPE, E) \
+ do { (OP)->trace_ ## TYPE (E); } while(0)
+
+#define BLKIN_TYPE_TRACE_EVENT(TYPE, E) \
+ do { trace_ ## TYPE (E); } while(0)
+
+#define BLKIN_OP_TRACE_KEYVAL(OP, TYPE, K, V) \
+ do { (OP)->trace_ ## TYPE (K, V); } while(0)
+
+#define BLKIN_OP_EVENT(O, E) do { (O)->event(E); } while(0)
+
+#define BLKIN_OP_EVENT_IF(C, O, E) do { if (C) (O)->event(E); } while(0)
+
+#define BLKIN_OP_SET_TRACE_DECL() \
+ void set_trace(TrackedOpTraceRef t) \
+ { \
+ trace = t; \
+ }
+
+#define BLKIN_OP_SET_TRACE(O, T) do { (O)->set_trace(T); } while(0)
+
+#else // Not WITH_BLKIN
+
+// string helper
+#define BLKIN_OSS(OSS, A) do { } while(0)
+
+// src/msg/Message.h
+#define BLKIN_GET_MASTER(MT) do { } while(0)
+#define BLKIN_MSG_GET_MASTER(MT, MSG) do { } while(0)
+#define BLKIN_ZTRACE_INIT() do { } while(0)
+#define BLKIN_INIT_TRACE(T) do { } while(0)
+#define BLKIN_MSG_INIT_TRACE(M, T) do { } while(0)
+#define BLKIN_MSG_INIT_TRACE_IF(C, M, T) do { } while(0)
+#define BLKIN_MSG_DO_INIT_TRACE() do { } while(0)
+#define BLKIN_MSG_ENCODE_TRACE() do { } while(0)
+#define BLKIN_MSG_DECODE_TRACE(V) do { } while(0)
+#define BLKIN_MSG_CHECK_SPAN() do { } while(0)
+#define BLKIN_MSG_INFO_DECL(TYPE)
+#define BLKIN_MSG_END_DECL(TYPE)
+#define BLKIN_MSG_END(EP, IP, PORT, NAME) do { } while(0)
+#define BLKIN_MSG_TRACE_EVENT(M, E) do { } while(0)
+#define BLKIN_MSG_TRACE_EVENT_IF(C, M, E) do { } while(0)
+#define BLKIN_MSG_TRACE_KEYVAL(M, K, V) do { } while(0)
+
+// src/msg/Pipe.h
+#define BLKIN_PIPE_ENDPOINT() do { } while(0)
+
+// src/common/TrackedOp.h
+#define BLKIN_END_REF(X)
+#define BLKIN_TRACE_REF(X)
+#define BLKIN_CREATE_TRACE(REF, ...) do { } while(0)
+#define BLKIN_OP_CREATE_TRACE(OP, TYPE, EP) do { } while(0)
+#define BLKIN_OP_TRACE_EVENT(OP, TYPE, E) do { } while(0)
+#define BLKIN_TYPE_TRACE_EVENT(TYPE, E) do { } while(0)
+#define BLKIN_OP_TRACE_KEYVAL(OP, TYPE, K, V) do { } while(0)
+#define BLKIN_OP_EVENT(O, E) do { } while(0)
+#define BLKIN_OP_EVENT_IF(C, O, E) do { } while(0)
+#define BLKIN_OP_SET_TRACE_DECL()
+#define BLKIN_OP_SET_TRACE(O, T) do { } while(0)
+
+#endif // WITH_BLKIN
diff --git a/src/msg/Message.cc b/src/msg/Message.cc
index 23f5179..968d368 100644
--- a/src/msg/Message.cc
+++ b/src/msg/Message.cc
@@ -817,3 +817,79 @@ Message *decode_message(CephContext *cct, int crcflags, bufferlist::iterator& p)
return decode_message(cct, crcflags, h, f, fr, mi, da);
}
+#ifdef WITH_BLKIN
+int Message::trace_basic_info()
+{
+ if (!master_trace) {
+ return 0;
+ }
+
+ master_trace->event("Message allocated");
+ trace_msg_info();
+ return 0;
+}
+
+int Message::init_trace_info()
+{
+ create_message_endpoint();
+ master_trace = ZTracer::create_ZTrace("Main", message_endpoint);
+ if (!master_trace) {
+ return -ENOMEM;
+ }
+
+ return trace_basic_info();
+}
+
+int Message::init_trace_info(ZTracer::ZTraceRef t)
+{
+ if (!t) {
+ return -EINVAL;
+ }
+
+ create_message_endpoint();
+ master_trace = ZTracer::create_ZTrace("Main", t, message_endpoint);
+ if (!master_trace) {
+ return -ENOMEM;
+ }
+
+ return trace_basic_info();
+}
+
+int Message::init_trace_info(struct blkin_trace_info *tinfo)
+{
+ if (!(tinfo->trace_id == 0 && tinfo->span_id == 0 && tinfo->parent_span_id == 0)) {
+ create_message_endpoint();
+ master_trace = ZTracer::create_ZTrace("Main", message_endpoint, tinfo);
+ return trace_basic_info();
+ }
+ return init_trace_info();
+}
+
+void Message::trace(string event)
+{
+ if (!master_trace) {
+ return;
+ }
+
+ master_trace->event(event);
+}
+
+void Message::trace(string key, string val)
+{
+ if (!master_trace) {
+ return;
+ }
+
+ master_trace->keyval(key, val);
+}
+
+bool Message::create_message_endpoint()
+{
+ message_endpoint = ZTracer::create_ZTraceEndpoint("0.0.0.0", 0, "NaN");
+ if (!message_endpoint) {
+ return false;
+ }
+
+ return true;
+}
+#endif // WITH_BLKIN
diff --git a/src/msg/Message.h b/src/msg/Message.h
index ddba0e5..a7c1e54 100644
--- a/src/msg/Message.h
+++ b/src/msg/Message.h
@@ -18,6 +18,11 @@
#include <stdlib.h>
#include <ostream>
+#ifdef WITH_BLKIN
+#include <ztracer.hpp>
+#endif
+#include "common/blkin_wrapper.h"
+
#include <boost/intrusive_ptr.hpp>
#include <boost/intrusive/list.hpp>
// Because intusive_ptr clobbers our assert...
@@ -257,6 +262,10 @@ protected:
// currently throttled.
uint64_t dispatch_throttle_size;
+#ifdef WITH_BLKIN
+ ZTracer::ZTraceEndpointRef message_endpoint;
+ ZTracer::ZTraceRef master_trace;
+#endif
friend class Messenger;
public:
@@ -270,6 +279,7 @@ public:
memset(&header, 0, sizeof(header));
memset(&footer, 0, sizeof(footer));
}
+
Message(int t, int version=1, int compat_version=0)
: connection(NULL),
magic(0),
@@ -326,6 +336,10 @@ public:
uint32_t get_magic() const { return magic; }
void set_magic(int _magic) { magic = _magic; }
+#ifdef WITH_BLKIN
+ ZTracer::ZTraceRef get_master_trace() { return master_trace; }
+#endif // WITH_BLKIN
+
/*
* If you use get_[data, middle, payload] you shouldn't
* use it to change those bufferlists unless you KNOW
@@ -457,6 +471,17 @@ public:
virtual void dump(Formatter *f) const;
void encode(uint64_t features, int crcflags);
+
+#ifdef WITH_BLKIN
+ int init_trace_info();
+ int init_trace_info(struct blkin_trace_info *tinfo);
+ int init_trace_info(ZTracer::ZTraceRef t);
+ void trace(string event);
+ void trace(string key, string val);
+ int trace_basic_info();
+ virtual void trace_msg_info() { };
+ virtual bool create_message_endpoint();
+#endif // WITH_BLKIN
};
typedef boost::intrusive_ptr<Message> MessageRef;
diff --git a/src/msg/msg_types.cc b/src/msg/msg_types.cc
index b02db76..ba36b8d 100644
--- a/src/msg/msg_types.cc
+++ b/src/msg/msg_types.cc
@@ -132,7 +132,7 @@ bool entity_addr_t::parse(const char *s, const char **end)
-ostream& operator<<(ostream& out, const sockaddr_storage &ss)
+int ss_to_string(const sockaddr_storage &ss, string &host, int &port)
{
char buf[NI_MAXHOST] = { 0 };
char serv[NI_MAXSERV] = { 0 };
@@ -147,8 +147,25 @@ ostream& operator<<(ostream& out, const sockaddr_storage &ss)
getnameinfo((struct sockaddr *)&ss, hostlen, buf, sizeof(buf),
serv, sizeof(serv),
NI_NUMERICHOST | NI_NUMERICSERV);
+ host = buf;
+ port = atoi(serv);
+ return 0;
+}
+
+int entity_addr_t::to_string(string &host, int &port)
+{
+ return ss_to_string(addr, host, port);
+}
+
+
+ostream& operator<<(ostream& out, const sockaddr_storage &ss)
+{
+ string host;
+ int port;
+
+ ss_to_string(ss, host, port);
if (ss.ss_family == AF_INET6)
- return out << '[' << buf << "]:" << serv;
+ return out << '[' << host << "]:" << port;
return out //<< ss.ss_family << ":"
- << buf << ':' << serv;
+ << host << ':' << port;
}
diff --git a/src/msg/msg_types.h b/src/msg/msg_types.h
index 9c0f266..ac32c85 100644
--- a/src/msg/msg_types.h
+++ b/src/msg/msg_types.h
@@ -336,6 +336,7 @@ struct entity_addr_t {
}
void dump(Formatter *f) const;
+ int to_string(string &host, int &port);
static void generate_test_instances(list<entity_addr_t*>& o);
};
diff --git a/src/msg/simple/Pipe.cc b/src/msg/simple/Pipe.cc
index 40bf41b..c1e411d 100644
--- a/src/msg/simple/Pipe.cc
+++ b/src/msg/simple/Pipe.cc
@@ -114,6 +114,7 @@ Pipe::Pipe(SimpleMessenger *r, int st, PipeConnection *con)
recv_max_prefetch = msgr->cct->_conf->ms_tcp_prefetch_max_size;
recv_buf = new char[recv_max_prefetch];
+ BLKIN_PIPE_ENDPOINT();
}
Pipe::~Pipe()
@@ -124,6 +125,33 @@ Pipe::~Pipe()
delete[] recv_buf;
}
+#ifdef WITH_BLKIN
+void Pipe::set_endpoint()
+{
+ string type;
+ entity_inst_t inst = msgr->get_myinst();
+
+ if (inst.name.is_client()) {
+ type = "MON";
+ } else if (inst.name.is_mds()) {
+ type = "MDS";
+ } else if (inst.name.is_osd()) {
+ type = "OSD";
+ } else if (inst.name.is_client()) {
+ type = "CLIENT";
+ } else {
+ type = "UNKNOWN";
+ }
+
+ string host;
+ int port;
+
+ inst.addr.to_string(host, port);
+
+ pipe_endpoint = ZTracer::create_ZTraceEndpoint(host, port, "Messenger-" + type);
+}
+#endif // WITH_BLKIN
+
void Pipe::handle_ack(uint64_t seq)
{
lsubdout(msgr->cct, ms, 15) << "reader got ack seq " << seq << dendl;
@@ -1587,6 +1615,7 @@ void Pipe::reader()
fault(true);
continue;
}
+ BLKIN_MSG_TRACE_EVENT(m, "message_read");
if (state == STATE_CLOSED ||
state == STATE_CONNECTING) {
@@ -1822,6 +1851,8 @@ void Pipe::writer()
pipe_lock.Unlock();
+ BLKIN_MSG_TRACE_EVENT(m, "writer_sending");
+
ldout(msgr->cct,20) << "writer sending " << m->get_seq() << " " << m << dendl;
int rc = write_message(header, footer, blist);
diff --git a/src/msg/simple/Pipe.h b/src/msg/simple/Pipe.h
index ddfa99f..0e31bb3 100644
--- a/src/msg/simple/Pipe.h
+++ b/src/msg/simple/Pipe.h
@@ -195,6 +195,7 @@ class DispatchQueue;
ceph::shared_ptr<AuthSessionHandler> session_security;
protected:
+ BLKIN_END_REF(pipe_endpoint)
friend class SimpleMessenger;
PipeConnectionRef connection_state;
@@ -219,6 +220,9 @@ class DispatchQueue;
uint64_t in_seq, in_seq_acked;
void set_socket_options();
+#ifdef WITH_BLKIN
+ void set_endpoint();
+#endif
int accept(); // server handshake
int connect(); // client handshake
diff --git a/src/msg/simple/SimpleMessenger.cc b/src/msg/simple/SimpleMessenger.cc
index 38b5d84..308492a 100644
--- a/src/msg/simple/SimpleMessenger.cc
+++ b/src/msg/simple/SimpleMessenger.cc
@@ -113,6 +113,7 @@ int SimpleMessenger::_send_message(Message *m, const entity_inst_t& dest)
lock.Lock();
Pipe *pipe = _lookup_pipe(dest.addr);
+ BLKIN_MSG_TRACE_EVENT(m, "submitting_message");
submit_message(m, (pipe ? pipe->connection_state.get() : NULL),
dest.addr, dest.name.type(), true);
lock.Unlock();
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