Merge pull request #1654 from Kentzo/vmci

Add the VMCI transport.

AUTHORS

@@ -53,6 +53,7 @@ Gonzalo Diethelm
 Guido Goldstein 
 Ian Barber 
 Ilja Golshtein 
+Ilya Kulakov 
 Ivo Danihelka 
 Jacob Rideout 
 Joe Thornber 

CMakeLists.txt

@@ -6,6 +6,7 @@ project(ZeroMQ)
 list(INSERT CMAKE_MODULE_PATH 0 "${CMAKE_SOURCE_DIR}")
 
 option(WITH_OPENPGM "Build with support for OpenPGM" OFF)
+option(WITH_VMCI "Build with support for VMware VMCI socket" OFF)
 
 if(APPLE)
   option(ZMQ_BUILD_FRAMEWORK "Build as OS X framework" ON)
@@ -502,6 +503,12 @@ if(WITH_OPENPGM)
   set(OPTIONAL_LIBRARIES ${OPENPGM_LIBRARIES})
 endif(WITH_OPENPGM)
 
+if(WITH_VMCI)
+    add_definitions(-DZMQ_HAVE_VMCI)
+    include_directories(${VMCI_INCLUDE_DIRS})
+    list(APPEND cxx-sources vmci_address.cpp vmci_connecter.cpp vmci_listener.cpp vmci.cpp)
+endif(WITH_VMCI)
+
 #-----------------------------------------------------------------------------
 # source generators
 

Makefile.am

@@ -196,6 +196,14 @@ src_libzmq_la_SOURCES = \
 	src/v2_encoder.cpp \
 	src/v2_encoder.hpp \
 	src/v2_protocol.hpp \
+	src/vmci.cpp \
+	src/vmci.hpp \
+	src/vmci_address.cpp \
+	src/vmci_address.hpp \
+	src/vmci_connecter.cpp \
+	src/vmci_connecter.hpp \
+	src/vmci_listener.cpp \
+	src/vmci_listener.hpp \
 	src/windows.hpp \
 	src/wire.hpp \
 	src/xpub.hpp \
@@ -663,6 +671,21 @@ tests_test_abstract_ipc_LDADD = src/libzmq.la
 
 endif
 
+if HAVE_VMCI
+test_apps += test_pair_vmci test_reqrep_vmci
+
+test_pair_vmci_SOURCES = tests/test_pair_vmci.cpp
+test_pair_vmci_LDADD = libzmq.la
+test_pair_vmci_LDFLAGS = @LIBZMQ_VMCI_LDFLAGS@
+test_pair_vmci_CXXFLAGS = @LIBZMQ_VMCI_CXXFLAGS@
+
+test_reqrep_vmci_SOURCES = tests/test_reqrep_vmci.cpp
+test_reqrep_vmci_LDADD = libzmq.la
+test_reqrep_vmci_LDFLAGS = @LIBZMQ_VMCI_LDFLAGS@
+test_reqrep_vmci_CXXFLAGS = @LIBZMQ_VMCI_CXXFLAGS@
+
+endif
+
 check_PROGRAMS = ${test_apps}
 
 #  Run the test cases

configure.ac

@@ -488,6 +488,28 @@ if test "x$with_norm_ext" != "xno"; then
     LIBS="-lnorm $LIBS"
 fi
 
+# build using vmci
+have_vmci_library="no"
+
+AC_ARG_WITH([vmci], [AS_HELP_STRING([--with-vmci],
+    [build libzmq with VMCI transport [default=no]])],
+    [have_vmci_ext=$withval],
+    [have_vmci_ext=yes])
+
+if test "x$have_vmci_ext" != "xno"; then
+    AC_DEFINE(ZMQ_HAVE_VMCI, 1, [Have VMCI transport])
+
+    if test "x$have_vmci_ext" != "xyes"; then
+        vmci_path="${have_vmci_ext}"
+        LIBZMQ_VMCI_CXXFLAGS="-I${vmci_path}"
+        LIBZMQ_VMCI_LDFLAGS="-I${vmci_path}"
+        LIBZMQ_EXTRA_CXXFLAGS="${LIBZMQ_VMCI_CXXFLAGS} ${LIBZMQ_EXTRA_CXXFLAGS}"
+        LIBZMQ_EXTRA_LDFLAGS="${LIBZMQ_VMCI_LDFLAGS} ${LIBZMQ_EXTRA_LDFLAGS}"
+    fi
+fi
+
+AM_CONDITIONAL(HAVE_VMCI, test "x$have_vmci_ext" != "xno")
+
 # Set -Wall, -Werror and -pedantic
 AC_LANG_PUSH([C++])
 
@@ -567,6 +589,9 @@ AC_SUBST(LIBZMQ_EXTRA_CFLAGS)
 AC_SUBST(LIBZMQ_EXTRA_CXXFLAGS)
 AC_SUBST(LIBZMQ_EXTRA_LDFLAGS)
 
+AC_SUBST(LIBZMQ_VMCI_CXXFLAGS)
+AC_SUBST(LIBZMQ_VMCI_LDFLAGS)
+
 # set pkgconfigdir, allow override
 AC_ARG_WITH([pkgconfigdir],
     AS_HELP_STRING([--with-pkgconfigdir=PATH],

doc/Makefile.am

@@ -21,7 +21,7 @@ MAN3 = zmq_bind.3 zmq_unbind.3 zmq_connect.3 zmq_disconnect.3 zmq_close.3 \
     zmq_atomic_counter_value.3 zmq_atomic_counter_destroy.3
 
 MAN7 = zmq.7 zmq_tcp.7 zmq_pgm.7 zmq_inproc.7 zmq_ipc.7 \
-    zmq_null.7 zmq_plain.7 zmq_curve.7 zmq_tipc.7
+    zmq_null.7 zmq_plain.7 zmq_curve.7 zmq_tipc.7 zmq_vmci.7
 
 MAN_DOC = $(MAN1) $(MAN3) $(MAN7)
 

doc/zmq.txt

@@ -162,6 +162,9 @@ Local inter-process communication transport::
 Local in-process (inter-thread) communication transport::
     linkzmq:zmq_inproc[7]
 
+Virtual Machine Communications Interface (VMC) transport::
+    linkzmq:zmq_vmci[7]
+
 
 Proxies
 ~~~~~~~

doc/zmq_bind.txt

@@ -27,13 +27,14 @@ The 'endpoint' is a string consisting of a 'transport'`://` followed by an
 'ipc':: local inter-process communication transport, see linkzmq:zmq_ipc[7]
 'inproc':: local in-process (inter-thread) communication transport, see linkzmq:zmq_inproc[7]
 'pgm', 'epgm':: reliable multicast transport using PGM, see linkzmq:zmq_pgm[7]
+'vmci':: virtual machine communications interface (VMCI), see linkzmq:zmq_vmci[7]
 
 Every 0MQ socket type except 'ZMQ_PAIR' supports one-to-many and many-to-one
 semantics. The precise semantics depend on the socket type and are defined in
 linkzmq:zmq_socket[3].
 
-The 'ipc' and 'tcp' transports accept wildcard addresses: see linkzmq:zmq_ipc[7]
-and linkzmq:zmq_tcp[7] for details.
+The 'ipc', 'tcp' and 'vmci' transports accept wildcard addresses: see linkzmq:zmq_ipc[7],
+linkzmq:zmq_tcp[7] and linkzmq:zmq_vmci[7] for details.
 
 NOTE: the address syntax may be different for _zmq_bind()_ and _zmq_connect()_
 especially for the 'tcp', 'pgm' and 'epgm' transports.

doc/zmq_connect.txt

@@ -27,6 +27,7 @@ The 'endpoint' is a string consisting of a 'transport'`://` followed by an
 'ipc':: local inter-process communication transport, see linkzmq:zmq_ipc[7]
 'inproc':: local in-process (inter-thread) communication transport, see linkzmq:zmq_inproc[7]
 'pgm', 'epgm':: reliable multicast transport using PGM, see linkzmq:zmq_pgm[7]
+'vmci':: virtual machine communications interface (VMCI), see linkzmq:zmq_vmci[7]
 
 Every 0MQ socket type except 'ZMQ_PAIR' supports one-to-many and many-to-one
 semantics. The precise semantics depend on the socket type and are defined in

doc/zmq_getsockopt.txt

@@ -777,6 +777,54 @@ Option value unit:: >0
 Default value:: 8192
 Applicable socket types:: all, when using TCP transport
 
+ZMQ_VMCI_BUFFER_SIZE: Retrieve buffer size of the VMCI socket
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The `ZMQ_VMCI_BUFFER_SIZE` option shall retrieve the size of the underlying
+buffer for the socket. Used during negotiation before the connection is established.
+
+[horizontal]
+Option value type:: uint64_t
+Option value unit:: bytes
+Default value:: 65546
+Applicable socket types:: all, when using VMCI transport
+
+
+ZMQ_VMCI_BUFFER_MIN_SIZE: Retrieve min buffer size of the VMCI socket
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The `ZMQ_VMCI_BUFFER_MIN_SIZE` option shall retrieve the min size of the underlying
+buffer for the socket. Used during negotiation before the connection is established.
+
+[horizontal]
+Option value type:: uint64_t
+Option value unit:: bytes
+Default value:: 128
+Applicable socket types:: all, when using VMCI transport
+
+
+ZMQ_VMCI_BUFFER_MAX_SIZE: Retrieve max buffer size of the VMCI socket
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The `ZMQ_VMCI_BUFFER_MAX_SIZE` option shall retrieve the max size of the underlying
+buffer for the socket. Used during negotiation before the connection is established.
+
+[horizontal]
+Option value type:: uint64_t
+Option value unit:: bytes
+Default value:: 262144
+Applicable socket types:: all, when using VMCI transport
+
+
+ZMQ_VMCI_CONNECT_TIMEOUT: Retrieve connection timeout of the VMCI socket
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The `ZMQ_VMCI_CONNECT_TIMEOUT` option shall retrieve connection timeout
+for the socket.
+
+[horizontal]
+Option value type:: int
+Option value unit:: milliseconds
+Default value:: -1
+Applicable socket types:: all, when using VMCI transport
+
+
 RETURN VALUE
 ------------
 The _zmq_getsockopt()_ function shall return zero if successful. Otherwise it

doc/zmq_inproc.txt

@@ -78,6 +78,7 @@ linkzmq:zmq_connect[3]
 linkzmq:zmq_ipc[7]
 linkzmq:zmq_tcp[7]
 linkzmq:zmq_pgm[7]
+linkzmq:zmq_vmci[7]
 linkzmq:zmq[7]
 
 

doc/zmq_ipc.txt

@@ -95,6 +95,7 @@ linkzmq:zmq_connect[3]
 linkzmq:zmq_inproc[7]
 linkzmq:zmq_tcp[7]
 linkzmq:zmq_pgm[7]
+linkzmq:zmq_vmci[7]
 linkzmq:zmq_getsockopt[3]
 linkzmq:zmq[7]
 

doc/zmq_pgm.txt

@@ -154,6 +154,7 @@ linkzmq:zmq_setsockopt[3]
 linkzmq:zmq_tcp[7]
 linkzmq:zmq_ipc[7]
 linkzmq:zmq_inproc[7]
+linkzmq:zmq_vmci[7]
 linkzmq:zmq[7]
 
 

doc/zmq_setsockopt.txt

@@ -1112,6 +1112,54 @@ Option value unit:: >0
 Default value:: 8192
 Applicable socket types:: all, when using TCP transport
 
+ZMQ_VMCI_BUFFER_SIZE: Set buffer size of the VMCI socket
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The `ZMQ_VMCI_BUFFER_SIZE` option shall set the size of the underlying
+buffer for the socket. Used during negotiation before the connection is established.
+
+[horizontal]
+Option value type:: uint64_t
+Option value unit:: bytes
+Default value:: 65546
+Applicable socket types:: all, when using VMCI transport
+
+
+ZMQ_VMCI_BUFFER_MIN_SIZE: Set min buffer size of the VMCI socket
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The `ZMQ_VMCI_BUFFER_MIN_SIZE` option shall set the min size of the underlying
+buffer for the socket. Used during negotiation before the connection is established.
+
+[horizontal]
+Option value type:: uint64_t
+Option value unit:: bytes
+Default value:: 128
+Applicable socket types:: all, when using VMCI transport
+
+
+ZMQ_VMCI_BUFFER_MAX_SIZE: Set max buffer size of the VMCI socket
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The `ZMQ_VMCI_BUFFER_MAX_SIZE` option shall set the max size of the underlying
+buffer for the socket. Used during negotiation before the connection is established.
+
+[horizontal]
+Option value type:: uint64_t
+Option value unit:: bytes
+Default value:: 262144
+Applicable socket types:: all, when using VMCI transport
+
+
+ZMQ_VMCI_CONNECT_TIMEOUT: Set connection timeout of the VMCI socket
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The `ZMQ_VMCI_CONNECT_TIMEOUT` option shall set connection timeout
+for the socket.
+
+[horizontal]
+Option value type:: int
+Option value unit:: milliseconds
+Default value:: -1
+Applicable socket types:: all, when using VMCI transport
+
+
 RETURN VALUE
 ------------
 The _zmq_setsockopt()_ function shall return zero if successful. Otherwise it

doc/zmq_tcp.txt

@@ -108,6 +108,7 @@ linkzmq:zmq_connect[3]
 linkzmq:zmq_pgm[7]
 linkzmq:zmq_ipc[7]
 linkzmq:zmq_inproc[7]
+linkzmq:zmq_vmci[7]
 linkzmq:zmq[7]
 
 

doc/zmq_tipc.txt

@@ -73,6 +73,7 @@ linkzmq:zmq_tcp[7]
 linkzmq:zmq_pgm[7]
 linkzmq:zmq_ipc[7]
 linkzmq:zmq_inproc[7]
+linkzmq:zmq_vmci[7]
 linkzmq:zmq[7]
 
 

doc/zmq_unbind.txt

@@ -21,10 +21,10 @@ argument.
 The 'endpoint' argument is as described in linkzmq:zmq_bind[3]
 
 Unbinding wild-card address from a socket
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-When wild-card `*` 'endpoint' (described in linkzmq:zmq_tcp[7] and 
-linkzmq:zmq_ipc[7]) was used in _zmq_bind()_, the caller should use 
-real 'endpoint' obtained from the ZMQ_LAST_ENDPOINT socket option 
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+When wild-card `*` 'endpoint' (described in linkzmq:zmq_tcp[7],
+linkzmq:zmq_ipc[7] and linkzmq:zmq_vmci[7]) was used in _zmq_bind()_, the caller should use
+real 'endpoint' obtained from the ZMQ_LAST_ENDPOINT socket option
 to unbind this 'endpoint' from a socket.
 
 RETURN VALUE

doc/zmq_vmci.txt

+zmq_ipc(7)
+==========
+
+
+NAME
+----
+zmq_ipc - 0MQ transport over virtual machine communicatios interface (VMCI) sockets
+
+
+SYNOPSIS
+--------
+The VMCI transport passes messages between VMware virtual machines running on the same host,
+between virtual machine and the host and within virtual machines (inter-process transport like ipc).
+
+NOTE: Communication between a virtual machine and the host is not supported on Mac OS X 10.9 and above.
+
+
+ADDRESSING
+----------
+A 0MQ endpoint is a string consisting of a 'transport'`://` followed by an
+'address'. The 'transport' specifies the underlying protocol to use. The
+'address' specifies the transport-specific address to connect to.
+
+For the VMCI transport, the transport is `vmci`, and the meaning of
+the 'address' part is defined below.
+
+
+Binding a socket
+~~~~~~~~~~~~~~~~
+When binding a 'socket' to a local address using _zmq_bind()_ with the 'vmci'
+transport, the 'endpoint' shall be interpreted as an 'interface' followed by a
+colon and the TCP port number to use.
+
+An 'interface' may be specified by either of the following:
+
+* The wild-card `*`, meaning all available interfaces.
+* An integer returned by `VMCISock_GetLocalCID`
+
+The port may be specified by:
+
+* A numeric value, usually above 1024 on POSIX systems.
+* The wild-card `*`, meaning a system-assigned ephemeral port.
+
+Unbinding wild-card address from a socket
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+When wild-card `*` 'endpoint' was used in _zmq_bind()_, the caller should use
+real 'endpoint' obtained from the ZMQ_LAST_ENDPOINT socket option to unbind
+this 'endpoint' from a socket using _zmq_unbind()_.
+
+Connecting a socket
+~~~~~~~~~~~~~~~~~~~
+When connecting a socket to a peer address using _zmq_connect()_ with the 'vmci'
+transport, the 'endpoint' shall be interpreted as a 'peer address' followed by
+a colon and the port number to use.
+
+A 'peer address' must be a CID of the peer.
+
+
+EXAMPLES
+--------
+.Assigning a local address to a socket
+----
+//  VMCI port 5555 on all available interfaces
+rc = zmq_bind(socket, "vmci://*:5555");
+assert (rc == 0);
+//  VMCI port 5555 on the local loop-back interface on all platforms
+cid = VMCISock_GetLocalCID();
+sprintf(endpoint, "vmci://%d:5555", cid);
+rc = zmq_bind(socket, endpoint);
+assert (rc == 0);
+----
+
+.Connecting a socket
+----
+//  Connecting using a CID
+sprintf(endpoint, "vmci://%d:5555", cid);
+rc = zmq_connect(socket, endpoint);
+assert (rc == 0);
+----
+
+
+SEE ALSO
+--------
+linkzmq:zmq_bind[3]
+linkzmq:zmq_connect[3]
+linkzmq:zmq_inproc[7]
+linkzmq:zmq_tcp[7]
+linkzmq:zmq_pgm[7]
+linkzmq:zmq_vmci[7]
+linkzmq:zmq_getsockopt[3]
+linkzmq:zmq[7]
+
+
+AUTHORS
+-------
+This page was written by the 0MQ community. To make a change please
+read the 0MQ Contribution Policy at <http://www.zeromq.org/docs:contributing>.

include/zmq.h

@@ -326,6 +326,10 @@ ZMQ_EXPORT uint32_t zmq_msg_routing_id (zmq_msg_t *msg);
 #define ZMQ_TCP_RECV_BUFFER 82
 #define ZMQ_TCP_SEND_BUFFER 83
 #define ZMQ_MULTICAST_MAXTPDU 84
+#define ZMQ_VMCI_BUFFER_SIZE 85
+#define ZMQ_VMCI_BUFFER_MIN_SIZE 86
+#define ZMQ_VMCI_BUFFER_MAX_SIZE 87
+#define ZMQ_VMCI_CONNECT_TIMEOUT 88
 
 /*  Message options                                                           */
 #define ZMQ_MORE 1

src/address.cpp

@@ -30,18 +30,24 @@
 #include "macros.hpp"
 #include "platform.hpp"
 #include "address.hpp"
+#include "ctx.hpp"
 #include "err.hpp"
 #include "tcp_address.hpp"
 #include "ipc_address.hpp"
 #include "tipc_address.hpp"
 
+#if defined ZMQ_HAVE_VMCI
+#include "vmci_address.hpp"
+#endif
+
 #include <string>
 #include <sstream>
 
 zmq::address_t::address_t (
-    const std::string &protocol_, const std::string &address_)
+    const std::string &protocol_, const std::string &address_, ctx_t *parent_)
     : protocol (protocol_),
-      address (address_)
+      address (address_),
+      parent (parent_)
 {
     memset (&resolved, 0, sizeof resolved);
 }
@@ -69,6 +75,14 @@ zmq::address_t::~address_t ()
         }
     }
 #endif
+#if defined ZMQ_HAVE_VMCI
+    else
+    if (protocol == "vmci") {
+        if (resolved.vmci_addr) {
+            LIBZMQ_DELETE(resolved.vmci_addr);
+        }
+    }
+#endif
 }
 
 int zmq::address_t::to_string (std::string &addr_) const
@@ -91,6 +105,13 @@ int zmq::address_t::to_string (std::string &addr_) const
             return resolved.tipc_addr->to_string (addr_);
     }
 #endif
+#if defined ZMQ_HAVE_VMCI
+    else
+    if (protocol == "vmci") {
+        if (resolved.vmci_addr)
+            return resolved.vmci_addr->to_string (addr_);
+    }
+#endif
 
     if (!protocol.empty () && !address.empty ()) {
         std::stringstream s;

src/address.hpp

@@ -34,20 +34,25 @@
 
 namespace zmq
 {
+    class ctx_t;
     class tcp_address_t;
 #if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
     class ipc_address_t;
 #endif
 #if defined ZMQ_HAVE_LINUX
     class tipc_address_t;
+#endif
+#if defined ZMQ_HAVE_VMCI
+    class vmci_address_t;
 #endif
     struct address_t {
-        address_t (const std::string &protocol_, const std::string &address_);
+        address_t (const std::string &protocol_, const std::string &address_, ctx_t *parent_);
 
         ~address_t ();
 
         const std::string protocol;
         const std::string address;
+        ctx_t *parent;
 
         //  Protocol specific resolved address
         union {
@@ -57,6 +62,9 @@ namespace zmq
 #endif
 #if defined ZMQ_HAVE_LINUX
             tipc_address_t *tipc_addr;
+#endif
+#if defined ZMQ_HAVE_VMCI
+            vmci_address_t *vmci_addr;
 #endif
         } resolved;
 

src/ctx.cpp

@@ -55,6 +55,10 @@
 #endif
 #endif
 
+#ifdef ZMQ_HAVE_VMCI
+#include <vmci_sockets.h>
+#endif
+
 #define ZMQ_CTX_TAG_VALUE_GOOD 0xabadcafe
 #define ZMQ_CTX_TAG_VALUE_BAD  0xdeadbeef
 
@@ -84,6 +88,10 @@ zmq::ctx_t::ctx_t () :
 #ifdef HAVE_FORK
     pid = getpid();
 #endif
+#ifdef ZMQ_HAVE_VMCI
+    vmci_fd = -1;
+    vmci_family = -1;
+#endif
 }
 
 bool zmq::ctx_t::check_tag ()
@@ -183,6 +191,16 @@ int zmq::ctx_t::terminate ()
     }
     slot_sync.unlock ();
 
+#ifdef ZMQ_HAVE_VMCI
+    vmci_sync.lock ();
+
+    VMCISock_ReleaseAFValueFd (vmci_fd);
+    vmci_family = -1;
+    vmci_fd = -1;
+
+    vmci_sync.unlock ();
+#endif
+
     //  Deallocate the resources.
     delete this;
 
@@ -578,6 +596,30 @@ void zmq::ctx_t::connect_inproc_sockets (zmq::socket_base_t *bind_socket_,
     }
 }
 
+#ifdef ZMQ_HAVE_VMCI
+
+int zmq::ctx_t::get_vmci_socket_family ()
+{
+    vmci_sync.lock ();
+
+    if (vmci_fd == -1)  {
+        vmci_family = VMCISock_GetAFValueFd (&vmci_fd);
+
+        if (vmci_fd != -1) {
+#ifdef FD_CLOEXEC
+            int rc = fcntl (vmci_fd, F_SETFD, FD_CLOEXEC);
+            errno_assert (rc != -1);
+#endif
+        }
+    }
+
+    vmci_sync.unlock ();
+
+    return vmci_family;
+}
+
+#endif
+
 //  The last used socket ID, or 0 if no socket was used so far. Note that this
 //  is a global variable. Thus, even sockets created in different contexts have
 //  unique IDs.

src/ctx.hpp

@@ -121,6 +121,11 @@ namespace zmq
                 const endpoint_t &endpoint_, pipe_t **pipes_);
         void connect_pending (const char *addr_, zmq::socket_base_t *bind_socket_);
 
+#ifdef ZMQ_HAVE_VMCI
+        // Return family for the VMCI socket or -1 if it's not available.
+        int get_vmci_socket_family ();
+#endif
+
         enum {
             term_tid = 0,
             reaper_tid = 1
@@ -219,6 +224,12 @@ namespace zmq
 #endif
         enum side { connect_side, bind_side };
         void connect_inproc_sockets(zmq::socket_base_t *bind_socket_, options_t& bind_options, const pending_connection_t &pending_connection_, side side_);
+
+#ifdef ZMQ_HAVE_VMCI
+        int vmci_fd;
+        int vmci_family;
+        mutex_t vmci_sync;
+#endif
     };
 
 }

src/options.cpp

@@ -79,6 +79,12 @@ zmq::options_t::options_t () :
     heartbeat_interval (0),
     heartbeat_timeout (-1)
 {
+#if defined ZMQ_HAVE_VMCI
+    vmci_buffer_size = 0;
+    vmci_buffer_min_size = 0;
+    vmci_buffer_max_size = 0;
+    vmci_connect_timeout = -1;
+#endif
 }
 
 int zmq::options_t::setsockopt (int option_, const void *optval_,
@@ -585,6 +591,36 @@ int zmq::options_t::setsockopt (int option_, const void *optval_,
             }
             break;
 
+#       ifdef ZMQ_HAVE_VMCI
+        case ZMQ_VMCI_BUFFER_SIZE:
+            if (optvallen_ == sizeof (uint64_t)) {
+                vmci_buffer_size = *((uint64_t*) optval_);
+                return 0;
+            }
+            break;
+
+        case ZMQ_VMCI_BUFFER_MIN_SIZE:
+            if (optvallen_ == sizeof (uint64_t)) {
+                vmci_buffer_min_size = *((uint64_t*) optval_);
+                return 0;
+            }
+            break;
+
+        case ZMQ_VMCI_BUFFER_MAX_SIZE:
+            if (optvallen_ == sizeof (uint64_t)) {
+                vmci_buffer_max_size = *((uint64_t*) optval_);
+                return 0;
+            }
+            break;
+
+        case ZMQ_VMCI_CONNECT_TIMEOUT:
+            if (optvallen_ == sizeof (int)) {
+                vmci_connect_timeout = *((int*) optval_);
+                return 0;
+            }
+            break;
+#       endif
+
         default:
 #if defined (ZMQ_ACT_MILITANT)
             //  There are valid scenarios for probing with unknown socket option

src/options.hpp

@@ -225,6 +225,12 @@ namespace zmq
         //  Time in milliseconds to wait for a PING response before disconnecting
         int heartbeat_timeout;
 
+#       if defined ZMQ_HAVE_VMCI
+        uint64_t vmci_buffer_size;
+        uint64_t vmci_buffer_min_size;
+        uint64_t vmci_buffer_max_size;
+        int vmci_connect_timeout;
+#       endif
     };
 }
 

src/session_base.cpp

@@ -37,6 +37,7 @@
 #include "ipc_connecter.hpp"
 #include "tipc_connecter.hpp"
 #include "socks_connecter.hpp"
+#include "vmci_connecter.hpp"
 #include "pgm_sender.hpp"
 #include "pgm_receiver.hpp"
 #include "address.hpp"
@@ -523,7 +524,7 @@ void zmq::session_base_t::start_connecting (bool wait_)
     if (addr->protocol == "tcp") {
         if (!options.socks_proxy_address.empty()) {
             address_t *proxy_address = new (std::nothrow)
-                address_t ("tcp", options.socks_proxy_address);
+                address_t ("tcp", options.socks_proxy_address, this->get_ctx ());
             alloc_assert (proxy_address);
             socks_connecter_t *connecter =
                 new (std::nothrow) socks_connecter_t (
@@ -633,6 +634,16 @@ void zmq::session_base_t::start_connecting (bool wait_)
     }
 #endif // ZMQ_HAVE_NORM
 
+#if defined ZMQ_HAVE_VMCI
+    if (addr->protocol == "vmci") {
+        vmci_connecter_t *connecter = new (std::nothrow) vmci_connecter_t (
+                io_thread, this, options, addr, wait_);
+        alloc_assert (connecter);
+        launch_child (connecter);
+        return;
+    }
+#endif
+
     zmq_assert (false);
 }
 

src/socket_base.cpp

@@ -52,6 +52,7 @@
 #include "ipc_listener.hpp"
 #include "tipc_listener.hpp"
 #include "tcp_connecter.hpp"
+#include "vmci_listener.hpp"
 #include "io_thread.hpp"
 #include "session_base.hpp"
 #include "config.hpp"
@@ -67,6 +68,12 @@
 #include "tipc_address.hpp"
 #include "mailbox.hpp"
 #include "mailbox_safe.hpp"
+
+#if defined ZMQ_HAVE_VMCI
+#include "vmci_address.hpp"
+#include "vmci_listener.hpp"
+#endif
+
 #ifdef ZMQ_HAVE_OPENPGM
 #include "pgm_socket.hpp"
 #endif
@@ -244,7 +251,8 @@ int zmq::socket_base_t::check_protocol (const std::string &protocol_)
     &&  protocol_ != "pgm"
     &&  protocol_ != "epgm"
     &&  protocol_ != "tipc"
-    &&  protocol_ != "norm") {
+    &&  protocol_ != "norm"
+    &&  protocol_ != "vmci") {
         errno = EPROTONOSUPPORT;
         return -1;
     }
@@ -281,6 +289,13 @@ int zmq::socket_base_t::check_protocol (const std::string &protocol_)
     }
 #endif
 
+#if !defined ZMQ_HAVE_VMCI
+    if (protocol_ == "vmci") {
+        errno = EPROTONOSUPPORT;
+        return -1;
+    }
+#endif
+
     //  Check whether socket type and transport protocol match.
     //  Specifically, multicast protocols can't be combined with
     //  bi-directional messaging patterns (socket types).
@@ -595,6 +610,27 @@ int zmq::socket_base_t::bind (const char *addr_)
         return 0;
     }
 #endif
+#if defined ZMQ_HAVE_VMCI
+    if (protocol == "vmci") {
+        vmci_listener_t *listener = new (std::nothrow) vmci_listener_t (
+            io_thread, this, options);
+        alloc_assert (listener);
+        int rc = listener->set_address (address.c_str ());
+        if (rc != 0) {
+            LIBZMQ_DELETE(listener);
+            event_bind_failed (address, zmq_errno ());
+            EXIT_MUTEX();
+            return -1;
+        }
+
+        listener->get_address (last_endpoint);
+
+        add_endpoint (last_endpoint.c_str(), (own_t *) listener, NULL);
+        options.connected = true;
+        EXIT_MUTEX();
+        return 0;
+    }
+#endif
 
     EXIT_MUTEX();
     zmq_assert (false);
@@ -753,7 +789,7 @@ int zmq::socket_base_t::connect (const char *addr_)
         return -1;
     }
 
-    address_t *paddr = new (std::nothrow) address_t (protocol, address);
+    address_t *paddr = new (std::nothrow) address_t (protocol, address, this->get_ctx ());
     alloc_assert (paddr);
 
     //  Resolve address (if needed by the protocol)
@@ -838,6 +874,19 @@ int zmq::socket_base_t::connect (const char *addr_)
         }
     }
 #endif
+#if defined ZMQ_HAVE_VMCI
+    else
+    if (protocol == "vmci") {
+        paddr->resolved.vmci_addr = new (std::nothrow) vmci_address_t (this->get_ctx ());
+        alloc_assert (paddr->resolved.vmci_addr);
+        int rc = paddr->resolved.vmci_addr->resolve (address.c_str ());
+        if (rc != 0) {
+            LIBZMQ_DELETE(paddr);
+            EXIT_MUTEX();
+            return -1;
+        }
+    }
+#endif
 
     //  Create session.
     session_base_t *session = session_base_t::create (io_thread, true, this,

src/vmci.cpp

+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "vmci.hpp"
+
+#if defined ZMQ_HAVE_VMCI
+
+#include <cassert>
+#include <vmci_sockets.h>
+
+void zmq::tune_vmci_buffer_size (ctx_t *context_, fd_t sockfd_, uint64_t default_size_, uint64_t min_size_, uint64_t max_size_)
+{
+    int family = context_->get_vmci_socket_family ();
+    assert (family != -1);
+
+    if (default_size_ != 0) {
+        int rc = setsockopt (sockfd_, family, SO_VMCI_BUFFER_SIZE, &default_size_, sizeof default_size_);
+#if defined ZMQ_HAVE_WINDOWS
+        wsa_assert (rc != SOCKET_ERROR);
+#else
+        errno_assert (rc == 0);
+#endif
+    }
+
+    if (min_size_ != 0) {
+        int rc = setsockopt (sockfd_, family, SO_VMCI_BUFFER_SIZE, &min_size_, sizeof min_size_);
+#if defined ZMQ_HAVE_WINDOWS
+        wsa_assert (rc != SOCKET_ERROR);
+#else
+        errno_assert (rc == 0);
+#endif
+    }
+
+    if (max_size_ != 0) {
+        int rc = setsockopt (sockfd_, family, SO_VMCI_BUFFER_SIZE, &max_size_, sizeof max_size_);
+#if defined ZMQ_HAVE_WINDOWS
+        wsa_assert (rc != SOCKET_ERROR);
+#else
+        errno_assert (rc == 0);
+#endif
+    }
+}
+
+#if defined ZMQ_HAVE_WINDOWS
+void zmq::tune_vmci_connect_timeout (ctx_t *context_, fd_t sockfd_, DWORD timeout_)
+#else
+void zmq::tune_vmci_connect_timeout (ctx_t *context_, fd_t sockfd_, struct timeval timeout_)
+#endif
+{
+    int family = context_->get_vmci_socket_family ();
+    assert (family != -1);
+
+    int rc = setsockopt (sockfd_, family, SO_VMCI_CONNECT_TIMEOUT, &timeout_, sizeof timeout_);
+#if defined ZMQ_HAVE_WINDOWS
+    wsa_assert (rc != SOCKET_ERROR);
+#else
+    errno_assert (rc == 0);
+#endif
+}
+
+#endif

src/vmci.hpp

+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_VMCI_HPP_INCLUDED__
+#define __ZMQ_VMCI_HPP_INCLUDED__
+
+#include <stdint.h>
+#include <string>
+
+#include "platform.hpp"
+#include "fd.hpp"
+#include "ctx.hpp"
+
+#if defined ZMQ_HAVE_VMCI
+
+#if defined ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#else
+#include <sys/time.h>
+#endif
+
+namespace zmq
+{
+    void tune_vmci_buffer_size (ctx_t *context_, fd_t sockfd_, uint64_t default_size_, uint64_t min_size_, uint64_t max_size_);
+
+#if defined ZMQ_HAVE_WINDOWS
+    void tune_vmci_connect_timeout (ctx_t *context_, fd_t sockfd_, DWORD timeout_);
+#else
+    void tune_vmci_connect_timeout (ctx_t *context_, fd_t sockfd_, struct timeval timeout_);
+#endif
+}
+
+#endif
+
+#endif

src/vmci_address.cpp

+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "vmci_address.hpp"
+
+#if defined(ZMQ_HAVE_VMCI)
+
+#include <climits>
+#include <string>
+#include <sstream>
+
+#include "ctx.hpp"
+#include "err.hpp"
+
+zmq::vmci_address_t::vmci_address_t(ctx_t *parent_) :
+    parent(parent_)
+{
+    memset (&address, 0, sizeof address);
+}
+
+zmq::vmci_address_t::vmci_address_t(const sockaddr *sa, socklen_t sa_len, ctx_t *parent_) :
+    parent(parent_)
+{
+    zmq_assert (sa && sa_len > 0);
+
+    memset (&address, 0, sizeof address);
+    if (sa->sa_family == parent->get_vmci_socket_family())
+        memcpy(&address, sa, sa_len);
+}
+
+zmq::vmci_address_t::~vmci_address_t ()
+{
+}
+
+int zmq::vmci_address_t::resolve(const char *path_)
+{
+    //  Find the ':' at end that separates address from the port number.
+    const char *delimiter = strrchr (path_, ':');
+    if (!delimiter) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    //  Separate the address/port.
+    std::string addr_str (path_, delimiter - path_);
+    std::string port_str (delimiter + 1);
+
+    unsigned int cid = VMADDR_CID_ANY;
+    unsigned int port = VMADDR_PORT_ANY;
+
+    if (!addr_str.length()) {
+        errno = EINVAL;
+        return -1;
+    }
+    else if (addr_str != "*" && addr_str != "-1") {
+        const char *begin = addr_str.c_str();
+        char *end = NULL;
+        unsigned long l = strtoul(begin, &end, 10);
+
+        if ((l == 0 && end == begin) || (l == ULONG_MAX && errno == ERANGE) || l > UINT_MAX)
+        {
+            errno = EINVAL;
+            return -1;
+        }
+
+        cid = static_cast<unsigned int> (l);
+    }
+
+    if (!port_str.length()) {
+        errno = EINVAL;
+        return -1;
+    }
+    else if (port_str != "*" && port_str != "-1") {
+        const char *begin = port_str.c_str();
+        char *end = NULL;
+        unsigned long l = strtoul(begin, &end, 10);
+
+        if ((l == 0 && end == begin) || (l == ULONG_MAX && errno == ERANGE) || l > UINT_MAX) {
+            errno = EINVAL;
+            return -1;
+        }
+
+        port = static_cast<unsigned int> (l);
+    }
+
+    address.svm_family = static_cast<sa_family_t> (parent->get_vmci_socket_family());
+    address.svm_cid = cid;
+    address.svm_port = port;
+
+    return 0;
+}
+
+int zmq::vmci_address_t::to_string (std::string &addr_)
+{
+    if (address.svm_family != parent->get_vmci_socket_family()) {
+        addr_.clear ();
+        return -1;
+    }
+
+    std::stringstream s;
+
+    s << "vmci://";
+
+    if (address.svm_cid == VMADDR_CID_ANY) {
+        s << "*";
+    }
+    else
+    {
+        s << address.svm_cid;
+    }
+
+    s << ":";
+
+    if (address.svm_port == VMADDR_PORT_ANY) {
+        s << "*";
+    }
+    else {
+        s << address.svm_port;
+    }
+
+    addr_ = s.str ();
+    return 0;
+}
+
+const sockaddr *zmq::vmci_address_t::addr () const
+{
+    return reinterpret_cast<const sockaddr*> (&address);
+}
+
+socklen_t zmq::vmci_address_t::addrlen () const
+{
+    return static_cast<socklen_t> (sizeof address);
+}
+
+#endif

src/vmci_address.hpp

+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_VMCI_ADDRESS_HPP_INCLUDED__
+#define __ZMQ_VMCI_ADDRESS_HPP_INCLUDED__
+
+#include <string>
+
+#include "platform.hpp"
+#include "ctx.hpp"
+
+#if defined(ZMQ_HAVE_VMCI)
+#include <vmci_sockets.h>
+
+namespace zmq
+{
+//    class ctx_t;
+    class vmci_address_t
+    {
+    public:
+        vmci_address_t (ctx_t *parent_);
+        vmci_address_t (const sockaddr *sa, socklen_t sa_len, ctx_t *parent_);
+        ~vmci_address_t ();
+
+        //  This function sets up the address for VMCI transport.
+        int resolve (const char *path_);
+
+        //  The opposite to resolve()
+        int to_string (std::string &addr_);
+
+        const sockaddr *addr () const;
+        socklen_t addrlen () const;
+
+    private:
+        struct sockaddr_vm address;
+        ctx_t *parent;
+
+        vmci_address_t ();
+        vmci_address_t (const vmci_address_t&);
+        const vmci_address_t &operator = (const vmci_address_t&);
+    };
+}
+
+#endif
+
+#endif

src/vmci_connecter.cpp

+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "vmci_connecter.hpp"
+
+#if defined ZMQ_HAVE_VMCI
+
+#include <new>
+#include <string>
+
+#include "stream_engine.hpp"
+#include "io_thread.hpp"
+#include "platform.hpp"
+#include "random.hpp"
+#include "err.hpp"
+#include "ip.hpp"
+#include "address.hpp"
+#include "ipc_address.hpp"
+#include "session_base.hpp"
+#include "vmci.hpp"
+
+zmq::vmci_connecter_t::vmci_connecter_t (class io_thread_t *io_thread_,
+      class session_base_t *session_, const options_t &options_,
+      const address_t *addr_, bool delayed_start_) :
+    own_t (io_thread_, options_),
+    io_object_t (io_thread_),
+    addr (addr_),
+    s (retired_fd),
+    handle_valid (false),
+    delayed_start (delayed_start_),
+    timer_started (false),
+    session (session_),
+    current_reconnect_ivl(options.reconnect_ivl)
+{
+    zmq_assert (addr);
+    zmq_assert (addr->protocol == "vmci");
+    addr->to_string (endpoint);
+    socket = session-> get_socket();
+}
+
+zmq::vmci_connecter_t::~vmci_connecter_t ()
+{
+    zmq_assert (!timer_started);
+    zmq_assert (!handle_valid);
+    zmq_assert (s == retired_fd);
+}
+
+void zmq::vmci_connecter_t::process_plug ()
+{
+    if (delayed_start)
+        add_reconnect_timer ();
+    else
+        start_connecting ();
+}
+
+void zmq::vmci_connecter_t::process_term (int linger_)
+{
+    if (timer_started) {
+        cancel_timer (reconnect_timer_id);
+        timer_started = false;
+    }
+
+    if (handle_valid) {
+        rm_fd (handle);
+        handle_valid = false;
+    }
+
+    if (s != retired_fd)
+        close ();
+
+    own_t::process_term (linger_);
+}
+
+void zmq::vmci_connecter_t::in_event ()
+{
+    //  We are not polling for incoming data, so we are actually called
+    //  because of error here. However, we can get error on out event as well
+    //  on some platforms, so we'll simply handle both events in the same way.
+    out_event ();
+}
+
+void zmq::vmci_connecter_t::out_event ()
+{
+    fd_t fd = connect ();
+    rm_fd (handle);
+    handle_valid = false;
+
+    //  Handle the error condition by attempt to reconnect.
+    if (fd == retired_fd) {
+        close ();
+        add_reconnect_timer();
+        return;
+    }
+
+    tune_vmci_buffer_size (this->get_ctx (), fd, options.vmci_buffer_size, options.vmci_buffer_min_size, options.vmci_buffer_max_size);
+
+    if (options.vmci_connect_timeout > 0)
+    {
+#if defined ZMQ_HAVE_WINDOWS
+        tune_vmci_connect_timeout (this->get_ctx (), fd, options.vmci_connect_timeout);
+#else
+        struct timeval timeout = {0, options.vmci_connect_timeout * 1000};
+        tune_vmci_connect_timeout (this->get_ctx (), fd, timeout);
+#endif
+    }
+
+    //  Create the engine object for this connection.
+    stream_engine_t *engine = new (std::nothrow)
+        stream_engine_t (fd, options, endpoint);
+    alloc_assert (engine);
+
+    //  Attach the engine to the corresponding session object.
+    send_attach (session, engine);
+
+    //  Shut the connecter down.
+    terminate ();
+
+    socket->event_connected (endpoint, fd);
+}
+
+void zmq::vmci_connecter_t::timer_event (int id_)
+{
+    zmq_assert (id_ == reconnect_timer_id);
+    timer_started = false;
+    start_connecting ();
+}
+
+void zmq::vmci_connecter_t::start_connecting ()
+{
+    //  Open the connecting socket.
+    int rc = open ();
+
+    //  Connect may succeed in synchronous manner.
+    if (rc == 0) {
+        handle = add_fd (s);
+        handle_valid = true;
+        out_event ();
+    }
+
+    //  Connection establishment may be delayed. Poll for its completion.
+    else
+    if (rc == -1 && errno == EINPROGRESS) {
+        handle = add_fd (s);
+        handle_valid = true;
+        set_pollout (handle);
+        socket->event_connect_delayed (endpoint, zmq_errno());
+    }
+
+    //  Handle any other error condition by eventual reconnect.
+    else {
+        if (s != retired_fd)
+            close ();
+        add_reconnect_timer ();
+    }
+}
+
+void zmq::vmci_connecter_t::add_reconnect_timer()
+{
+    int rc_ivl = get_new_reconnect_ivl();
+    add_timer (rc_ivl, reconnect_timer_id);
+    socket->event_connect_retried (endpoint, rc_ivl);
+    timer_started = true;
+}
+
+int zmq::vmci_connecter_t::get_new_reconnect_ivl ()
+{
+    //  The new interval is the current interval + random value.
+    int this_interval = current_reconnect_ivl +
+        (generate_random () % options.reconnect_ivl);
+
+    //  Only change the current reconnect interval  if the maximum reconnect
+    //  interval was set and if it's larger than the reconnect interval.
+    if (options.reconnect_ivl_max > 0 &&
+        options.reconnect_ivl_max > options.reconnect_ivl) {
+
+        //  Calculate the next interval
+        current_reconnect_ivl = current_reconnect_ivl * 2;
+        if(current_reconnect_ivl >= options.reconnect_ivl_max) {
+            current_reconnect_ivl = options.reconnect_ivl_max;
+        }
+    }
+    return this_interval;
+}
+
+int zmq::vmci_connecter_t::open ()
+{
+    zmq_assert (s == retired_fd);
+
+    int family = this->get_ctx ()->get_vmci_socket_family ();
+    if (family == -1)
+        return -1;
+
+    //  Create the socket.
+    s = open_socket (family, SOCK_STREAM, 0);
+    if (s == -1)
+        return -1;
+
+    //  Set the non-blocking flag.
+    unblock_socket (s);
+
+    //  Connect to the remote peer.
+    int rc = ::connect (
+        s, addr->resolved.ipc_addr->addr (),
+        addr->resolved.ipc_addr->addrlen ());
+
+    //  Connect was successful immediately.
+    if (rc == 0)
+        return 0;
+
+    //  Translate other error codes indicating asynchronous connect has been
+    //  launched to a uniform EINPROGRESS.
+    if (rc == -1 && errno == EINTR) {
+        errno = EINPROGRESS;
+        return -1;
+    }
+
+    //  Forward the error.
+    return -1;
+}
+
+int zmq::vmci_connecter_t::close ()
+{
+    zmq_assert (s != retired_fd);
+    int rc = ::close (s);
+    errno_assert (rc == 0);
+    socket->event_closed (endpoint, s);
+    s = retired_fd;
+    return 0;
+}
+
+zmq::fd_t zmq::vmci_connecter_t::connect ()
+{
+    //  Following code should handle both Berkeley-derived socket
+    //  implementations and Solaris.
+    int err = 0;
+#if defined ZMQ_HAVE_HPUX
+    int len = sizeof (err);
+#else
+    socklen_t len = sizeof (err);
+#endif
+    int rc = getsockopt (s, SOL_SOCKET, SO_ERROR, (char*) &err, &len);
+    if (rc == -1)
+        err = errno;
+    if (err != 0) {
+
+        //  Assert if the error was caused by 0MQ bug.
+        //  Networking problems are OK. No need to assert.
+        errno = err;
+        errno_assert (errno == ECONNREFUSED || errno == ECONNRESET ||
+            errno == ETIMEDOUT || errno == EHOSTUNREACH ||
+            errno == ENETUNREACH || errno == ENETDOWN);
+
+        return retired_fd;
+    }
+
+    fd_t result = s;
+    s = retired_fd;
+    return result;
+}
+
+#endif

src/vmci_connecter.hpp

+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __VMCI_CONNECTER_HPP_INCLUDED__
+#define __VMCI_CONNECTER_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_VMCI
+
+#include "fd.hpp"
+#include "own.hpp"
+#include "stdint.hpp"
+#include "io_object.hpp"
+
+namespace zmq
+{
+
+    class io_thread_t;
+    class session_base_t;
+    struct address_t;
+
+    class vmci_connecter_t : public own_t, public io_object_t
+    {
+    public:
+
+        //  If 'delayed_start' is true connecter first waits for a while,
+        //  then starts connection process.
+        vmci_connecter_t (zmq::io_thread_t *io_thread_,
+                         zmq::session_base_t *session_, const options_t &options_,
+                         const address_t *addr_, bool delayed_start_);
+        ~vmci_connecter_t ();
+
+    private:
+
+        //  ID of the timer used to delay the reconnection.
+        enum {reconnect_timer_id = 1};
+
+        //  Handlers for incoming commands.
+        void process_plug ();
+        void process_term (int linger_);
+
+        //  Handlers for I/O events.
+        void in_event ();
+        void out_event ();
+        void timer_event (int id_);
+
+        //  Internal function to start the actual connection establishment.
+        void start_connecting ();
+
+        //  Internal function to add a reconnect timer
+        void add_reconnect_timer();
+
+        //  Internal function to return a reconnect backoff delay.
+        //  Will modify the current_reconnect_ivl used for next call
+        //  Returns the currently used interval
+        int get_new_reconnect_ivl ();
+
+        //  Open VMCI connecting socket. Returns -1 in case of error,
+        //  0 if connect was successful immediately. Returns -1 with
+        //  EAGAIN errno if async connect was launched.
+        int open ();
+
+        //  Close the connecting socket.
+        int close ();
+
+        //  Get the file descriptor of newly created connection. Returns
+        //  retired_fd if the connection was unsuccessful.
+        fd_t connect ();
+
+        //  Address to connect to. Owned by session_base_t.
+        const address_t *addr;
+
+        //  Underlying socket.
+        fd_t s;
+
+        //  Handle corresponding to the listening socket.
+        handle_t handle;
+
+        //  If true file descriptor is registered with the poller and 'handle'
+        //  contains valid value.
+        bool handle_valid;
+
+        //  If true, connecter is waiting a while before trying to connect.
+        const bool delayed_start;
+
+        //  True iff a timer has been started.
+        bool timer_started;
+
+        //  Reference to the session we belong to.
+        zmq::session_base_t *session;
+
+        //  Current reconnect ivl, updated for backoff strategy
+        int current_reconnect_ivl;
+
+        // String representation of endpoint to connect to
+        std::string endpoint;
+
+        // Socket
+        zmq::socket_base_t *socket;
+
+        vmci_connecter_t (const vmci_connecter_t&);
+        const vmci_connecter_t &operator = (const vmci_connecter_t&);
+    };
+}
+
+#endif
+
+#endif
+

src/vmci_listener.cpp

+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "vmci_listener.hpp"
+
+#if defined ZMQ_HAVE_VMCI
+
+#include <new>
+
+#include <string.h>
+
+#include "stream_engine.hpp"
+#include "vmci_address.hpp"
+#include "io_thread.hpp"
+#include "session_base.hpp"
+#include "config.hpp"
+#include "err.hpp"
+#include "ip.hpp"
+#include "socket_base.hpp"
+#include "vmci.hpp"
+
+#include <unistd.h>
+#include <fcntl.h>
+
+zmq::vmci_listener_t::vmci_listener_t (io_thread_t *io_thread_,
+      socket_base_t *socket_, const options_t &options_) :
+    own_t (io_thread_, options_),
+    io_object_t (io_thread_),
+    s (retired_fd),
+    socket (socket_)
+{
+}
+
+zmq::vmci_listener_t::~vmci_listener_t ()
+{
+    zmq_assert (s == retired_fd);
+}
+
+void zmq::vmci_listener_t::process_plug ()
+{
+    //  Start polling for incoming connections.
+    handle = add_fd (s);
+    set_pollin (handle);
+}
+
+void zmq::vmci_listener_t::process_term (int linger_)
+{
+    rm_fd (handle);
+    close ();
+    own_t::process_term (linger_);
+}
+
+void zmq::vmci_listener_t::in_event ()
+{
+    fd_t fd = accept ();
+
+    //  If connection was reset by the peer in the meantime, just ignore it.
+    if (fd == retired_fd) {
+        socket->event_accept_failed (endpoint, zmq_errno());
+        return;
+    }
+
+    tune_vmci_buffer_size (this->get_ctx (), fd, options.vmci_buffer_size, options.vmci_buffer_min_size, options.vmci_buffer_max_size);
+
+    if (options.vmci_connect_timeout > 0)
+    {
+#if defined ZMQ_HAVE_WINDOWS
+        tune_vmci_connect_timeout (this->get_ctx (), fd, options.vmci_connect_timeout);
+#else
+        struct timeval timeout = {0, options.vmci_connect_timeout * 1000};
+        tune_vmci_connect_timeout (this->get_ctx (), fd, timeout);
+#endif
+    }
+
+    //  Create the engine object for this connection.
+    stream_engine_t *engine = new (std::nothrow)
+        stream_engine_t (fd, options, endpoint);
+    alloc_assert (engine);
+
+    //  Choose I/O thread to run connecter in. Given that we are already
+    //  running in an I/O thread, there must be at least one available.
+    io_thread_t *io_thread = choose_io_thread (options.affinity);
+    zmq_assert (io_thread);
+
+    //  Create and launch a session object.
+    session_base_t *session = session_base_t::create (io_thread, false, socket,
+        options, NULL);
+    errno_assert (session);
+    session->inc_seqnum ();
+    launch_child (session);
+    send_attach (session, engine, false);
+    socket->event_accepted (endpoint, fd);
+}
+
+int zmq::vmci_listener_t::get_address (std::string &addr_)
+{
+    struct sockaddr_storage ss;
+#ifdef ZMQ_HAVE_HPUX
+    int sl = sizeof (ss);
+#else
+    socklen_t sl = sizeof (ss);
+#endif
+    int rc = getsockname (s, (sockaddr *) &ss, &sl);
+    if (rc != 0) {
+        addr_.clear ();
+        return rc;
+    }
+
+    vmci_address_t addr ((struct sockaddr *) &ss, sl, this->get_ctx ());
+    return addr.to_string (addr_);
+}
+
+int zmq::vmci_listener_t::set_address (const char *addr_)
+{
+    //  Create addr on stack for auto-cleanup
+    std::string addr (addr_);
+
+    //  Initialise the address structure.
+    vmci_address_t address(this->get_ctx ());
+    int rc = address.resolve (addr.c_str());
+    if (rc != 0)
+        return -1;
+
+    //  Create a listening socket.
+    s = open_socket (this->get_ctx ()->get_vmci_socket_family (), SOCK_STREAM, 0);
+    if (s == -1)
+        return -1;
+
+    address.to_string (endpoint);
+
+    //  Bind the socket.
+    rc = bind (s, address.addr (), address.addrlen ());
+    if (rc != 0)
+        goto error;
+
+    //  Listen for incoming connections.
+    rc = listen (s, options.backlog);
+    if (rc != 0)
+        goto error;
+
+    socket->event_listening (endpoint, s);
+    return 0;
+
+    error:
+    int err = errno;
+    close ();
+    errno = err;
+    return -1;
+}
+
+int zmq::vmci_listener_t::close ()
+{
+    zmq_assert (s != retired_fd);
+    int rc = ::close (s);
+    errno_assert (rc == 0);
+
+    s = retired_fd;
+
+    socket->event_closed (endpoint, s);
+    return 0;
+}
+
+zmq::fd_t zmq::vmci_listener_t::accept ()
+{
+    //  Accept one connection and deal with different failure modes.
+    //  The situation where connection cannot be accepted due to insufficient
+    //  resources is considered valid and treated by ignoring the connection.
+    zmq_assert (s != retired_fd);
+    fd_t sock = ::accept (s, NULL, NULL);
+    if (sock == -1) {
+        errno_assert (errno == EAGAIN || errno == EWOULDBLOCK ||
+            errno == EINTR || errno == ECONNABORTED || errno == EPROTO ||
+            errno == ENFILE);
+        return retired_fd;
+    }
+
+    //  Race condition can cause socket not to be closed (if fork happens
+    //  between accept and this point).
+#ifdef FD_CLOEXEC
+    int rc = fcntl (sock, F_SETFD, FD_CLOEXEC);
+    errno_assert (rc != -1);
+#endif
+
+    return sock;
+}
+
+#endif

src/vmci_listener.hpp

+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_VMCI_LISTENER_HPP_INCLUDED__
+#define __ZMQ_VMCI_LISTENER_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_VMCI
+
+#include <string>
+
+#include "fd.hpp"
+#include "own.hpp"
+#include "stdint.hpp"
+#include "io_object.hpp"
+
+namespace zmq
+{
+
+    class io_thread_t;
+    class socket_base_t;
+
+    class vmci_listener_t : public own_t, public io_object_t
+    {
+    public:
+
+        vmci_listener_t (zmq::io_thread_t *io_thread_,
+                zmq::socket_base_t *socket_, const options_t &options_);
+        ~vmci_listener_t ();
+
+        //  Set address to listen on.
+        int set_address (const char *addr_);
+
+        // Get the bound address for use with wildcards
+        int get_address (std::string &addr_);
+
+    private:
+
+        //  Handlers for incoming commands.
+        void process_plug ();
+        void process_term (int linger_);
+
+        //  Handlers for I/O events.
+        void in_event ();
+
+        //  Close the listening socket.
+        int close ();
+
+        //  Accept the new connection. Returns the file descriptor of the
+        //  newly created connection. The function may return retired_fd
+        //  if the connection was dropped while waiting in the listen backlog.
+        fd_t accept ();
+
+        //  Underlying socket.
+        fd_t s;
+
+        //  Handle corresponding to the listening socket.
+        handle_t handle;
+
+        //  Socket the listerner belongs to.
+        zmq::socket_base_t *socket;
+
+        // String representation of endpoint to bind to
+        std::string endpoint;
+
+        vmci_listener_t (const vmci_listener_t&);
+        const vmci_listener_t &operator = (const vmci_listener_t&);
+    };
+
+}
+
+#endif
+
+#endif
+

src/zmq.cpp

@@ -1238,6 +1238,10 @@ int zmq_has (const char *capability)
 #if defined (HAVE_LIBGSSAPI_KRB5)
     if (strcmp (capability, "gssapi") == 0)
         return true;
+#endif
+#if defined (ZMQ_HAVE_VMCI)
+    if (strcmp (capability, "vmci") == 0)
+        return true;
 #endif
     //  Whatever the application asked for, we don't have
     return false;

tests/CMakeLists.txt

@@ -92,6 +92,13 @@ if(NOT WIN32)
   endif()
 endif()
 
+if(WITH_VMCI)
+  list(APPEND tests
+          test_pair_vmci
+          test_reqrep_vmci
+  )
+endif()
+
 foreach(test ${tests})
   add_executable(${test} ${test}.cpp)
   target_link_libraries(${test} libzmq)

tests/test_capabilities.cpp

@@ -67,5 +67,11 @@ int main (void)
     assert (!zmq_has ("gssapi"));
 #endif
 
+#if defined (ZMQ_HAVE_VMCI)
+    assert (zmq_has("vmci"));
+#else
+    assert (!zmq_has("vmci"));
+#endif
+
     return 0;
 }

tests/test_pair_vmci.cpp

+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <string>
+#include <sstream>
+#include <vmci_sockets.h>
+
+#include "testutil.hpp"
+
+int main (void)
+{
+    setup_test_environment();
+    void *ctx = zmq_ctx_new ();
+    assert (ctx);
+
+    std::stringstream s;
+    s << "vmci://" << VMCISock_GetLocalCID() << ":" << 5560;
+    std::string endpoint = s.str();
+
+    void *sb = zmq_socket (ctx, ZMQ_PAIR);
+    assert (sb);
+    int rc = zmq_bind (sb, endpoint.c_str());
+    assert (rc == 0);
+
+    void *sc = zmq_socket (ctx, ZMQ_PAIR);
+    assert (sc);
+    rc = zmq_connect (sc, endpoint.c_str());
+    assert (rc == 0);
+
+    bounce (sb, sc);
+
+    rc = zmq_close (sc);
+    assert (rc == 0);
+
+    rc = zmq_close (sb);
+    assert (rc == 0);
+
+    rc = zmq_ctx_term (ctx);
+    assert (rc == 0);
+
+    return 0;
+}

tests/test_reqrep_vmci.cpp

+/*
+    Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <string>
+#include <sstream>
+#include <vmci_sockets.h>
+
+#include "testutil.hpp"
+
+int main (void)
+{
+    setup_test_environment();
+    void *ctx = zmq_ctx_new ();
+    assert (ctx);
+
+    std::stringstream s;
+    s << "vmci://" << VMCISock_GetLocalCID() << ":" << 5560;
+    std::string endpoint = s.str();
+
+    void *sb = zmq_socket (ctx, ZMQ_REP);
+    assert (sb);
+    int rc = zmq_bind (sb, endpoint.c_str());
+    assert (rc == 0);
+
+    void *sc = zmq_socket (ctx, ZMQ_REQ);
+    assert (sc);
+    rc = zmq_connect (sc, endpoint.c_str());
+    assert (rc == 0);
+
+    bounce (sb, sc);
+
+    rc = zmq_close (sc);
+    assert (rc == 0);
+
+    rc = zmq_close (sb);
+    assert (rc == 0);
+
+    rc = zmq_ctx_term (ctx);
+    assert (rc == 0);
+
+    return 0;
+}

tests/test_term_endpoint.cpp

@@ -40,6 +40,9 @@ int main (void)
 #if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
     const char *ep_wc_ipc = "ipc://*";
 #endif
+#if defined ZMQ_HAVE_VMCI
+    const char *ep_wc_vmci = "vmci://*:*";
+#endif
 
     //  Create infrastructure.
     void *ctx = zmq_ctx_new ();
@@ -128,6 +131,12 @@ int main (void)
     rc = zmq_bind (pull, ep_wc_ipc);
     assert (rc == 0);
 #endif
+#if defined ZMQ_HAVE_VMCI
+    void *req = zmq_socket (ctx, ZMQ_REQ);
+    assert (req);
+    rc = zmq_bind (req, ep_wc_vmci);
+    assert (rc == 0);
+#endif
 
     // Unbind sockets binded by wild-card address
     rc = zmq_getsockopt (push, ZMQ_LAST_ENDPOINT, buf, (size_t *)&buf_size);
@@ -140,6 +149,12 @@ int main (void)
     rc = zmq_unbind (pull, buf);
     assert (rc == 0);
 #endif
+#if defined ZMQ_HAVE_VMCI
+    rc = zmq_getsockopt (req, ZMQ_LAST_ENDPOINT, buf, (size_t *)&buf_size);
+    assert (rc == 0);
+    rc = zmq_unbind(req, buf);
+    assert (rc == 0);
+#endif
 
     //  Create infrastructure (wild-card binding)
     ctx = zmq_ctx_new ();
@@ -154,6 +169,12 @@ int main (void)
     rc = zmq_bind (pull, ep_wc_ipc);
     assert (rc == 0);
 #endif
+#if defined ZMQ_HAVE_VMCI
+    req = zmq_socket (ctx, ZMQ_REQ);
+    assert (req);
+    rc = zmq_bind (req, ep_wc_vmci);
+    assert (rc == 0);
+#endif
 
     // Sockets binded by wild-card address can't be unbinded by wild-card address
     rc = zmq_unbind (push, ep_wc_tcp);
@@ -162,6 +183,10 @@ int main (void)
     rc = zmq_unbind (pull, ep_wc_ipc);
     assert (rc == -1 && zmq_errno () == ENOENT);
 #endif
+#if defined ZMQ_HAVE_VMCI
+    rc = zmq_unbind (req, ep_wc_vmci);
+    assert (rc == -1 && zmq_errno () == ENOENT);
+#endif
 
     return 0;
 }