Pull request to merge porting to WindRiver VxWorks 6.x (#2966)

* Problem: Still need to port over more files to VxWorks 6.x

Solution: Port more files to VxWorks 6.x

* Problem: Need to port over remaining files to VxWorks 6.x. Also remove POSIX thread dependency for VxWorks (because of priority inversion problem in POSIX mutexes with VxWorks 6.x processes)

Solution: Port over remaining files to VxWorks 6.x. Also removed POSIX thread dependency for VxWorks

* Problem: Needed to modify TCP, UDP, TIPC classes with #ifdefs to be compatible with VxWorks 6.x.

Solution:  Modify TCP, UDP, TIPC classes with #ifdefs to be compatible with VxWorks 6.x

builds/vxworks/platform.hpp

@@ -0,0 +1,306 @@
+/* src/platform.hpp.  Generated from platform.hpp.in by configure.  */
+/* src/platform.hpp.in.  Generated from configure.ac by autoheader.  */
+
+/* Define to 1 if you have the <alloca.h> header file. */
+/* #undef HAVE_ALLOCA_H */
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#define HAVE_ARPA_INET_H 1
+
+/* Define to 1 if you have the `clock_gettime' function. */
+#define HAVE_CLOCK_GETTIME 1
+
+/* Define to 1 if you have the declaration of `LOCAL_PEERCRED', and to 0 if
+   you don't. */
+#define HAVE_DECL_LOCAL_PEERCRED 0
+
+/* Define to 1 if you have the declaration of `SO_PEERCRED', and to 0 if you
+   don't. */
+#define HAVE_DECL_SO_PEERCRED 0
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define HAVE_DLFCN_H 1
+
+/* Define to 1 if you have the <errno.h> header file. */
+#define HAVE_ERRNO_H 1
+
+/* Define to 1 if you have the `fork' function. */
+#define HAVE_FORK 1
+
+/* Define to 1 if you have the `freeifaddrs' function. */
+#define HAVE_FREEIFADDRS 1
+
+/* Define to 1 if you have the `gethrtime' function. */
+/* #undef HAVE_GETHRTIME */
+
+/* Define to 1 if you have the `getifaddrs' function. */
+#define HAVE_GETIFADDRS 1
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#define HAVE_GETTIMEOFDAY 1
+
+/* Define to 1 if you have the <ifaddrs.h> header file. */
+//#define HAVE_IFADDRS_H 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the `gssapi_krb5' library (-lgssapi_krb5). */
+/* #undef HAVE_LIBGSSAPI_KRB5 */
+
+/* Define to 1 if you have the `iphlpapi' library (-liphlpapi). */
+/* #undef HAVE_LIBIPHLPAPI */
+
+/* Define to 1 if you have the `nsl' library (-lnsl). */
+/* #undef HAVE_LIBNSL */
+
+/* Define to 1 if you have the `pthread' library (-lpthread). */
+/* #undef HAVE_LIBPTHREAD */
+
+/* Define to 1 if you have the `rpcrt4' library (-lrpcrt4). */
+/* #undef HAVE_LIBRPCRT4 */
+
+/* Define to 1 if you have the `rt' library (-lrt). */
+/* #undef HAVE_LIBRT */
+
+/* Define to 1 if you have the `socket' library (-lsocket). */
+/* #undef HAVE_LIBSOCKET */
+
+/* Define to 1 if you have the `sodium' library (-lsodium). */
+/* #undef HAVE_LIBSODIUM */
+
+/* Define to 1 if you have the `ws2_32' library (-lws2_32). */
+/* #undef HAVE_LIBWS2_32 */
+
+/* Define to 1 if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the `memset' function. */
+#define HAVE_MEMSET 1
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#define HAVE_NETINET_IN_H 1
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#define HAVE_NETINET_TCP_H 1
+
+/* Define to 1 if you have the `perror' function. */
+#define HAVE_PERROR 1
+
+/* Define to 1 if you have the `socket' function. */
+#define HAVE_SOCKET 1
+
+/* Define to 1 if stdbool.h conforms to C99. */
+#define HAVE_STDBOOL_H 1
+
+/* Define to 1 if you have the <stddef.h> header file. */
+#define HAVE_STDDEF_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the <sys/eventfd.h> header file. */
+/* #undef HAVE_SYS_EVENTFD_H */
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#define HAVE_SYS_SOCKET_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#define HAVE_SYS_UIO_H 1
+
+/* Define to 1 if you have the <time.h> header file. */
+#define HAVE_TIME_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the <windows.h> header file. */
+/* #undef HAVE_WINDOWS_H */
+
+/* Define to 1 if the system has the type `_Bool'. */
+/* #undef HAVE__BOOL */
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#define LT_OBJDIR ".libs/"
+
+/* Name of package */
+#define PACKAGE "zeromq"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "zeromq-dev@lists.zeromq.org"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "zeromq"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "zeromq 4.1.0"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "zeromq"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "4.1.0"
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#define RETSIGTYPE void
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
+#define TIME_WITH_SYS_TIME 1
+
+/* Version number of package */
+#define VERSION "4.1.0"
+
+/* Enable militant API assertions */
+/* #undef ZMQ_ACT_MILITANT */
+
+/* Force to use mutexes */
+/* #undef ZMQ_FORCE_MUTEXES */
+
+/* Have VxWorks OS */
+#define ZMQ_HAVE_VXWORKS 1
+
+/* Have AIX OS */
+/* #undef ZMQ_HAVE_AIX */
+
+/* Have Android OS */
+/* #undef ZMQ_HAVE_ANDROID */
+
+/* Have Cygwin */
+/* #undef ZMQ_HAVE_CYGWIN */
+
+/* Have eventfd extension. */
+/* #undef ZMQ_HAVE_EVENTFD */
+
+/* Have FreeBSD OS */
+/* #undef ZMQ_HAVE_FREEBSD */
+
+/* Have HPUX OS */
+/* #undef ZMQ_HAVE_HPUX */
+
+/* Have ifaddrs.h header. */
+//#define ZMQ_HAVE_IFADDRS 1
+
+/* Have Linux OS */
+/* #undef ZMQ_HAVE_LINUX */
+
+/* Have LOCAL_PEERCRED socket option */
+/* #undef ZMQ_HAVE_LOCAL_PEERCRED */
+
+/* Have MinGW32 */
+/* #undef ZMQ_HAVE_MINGW32 */
+
+/* Have NetBSD OS */
+/* #undef ZMQ_HAVE_NETBSD */
+
+/* Have NORM protocol extension */
+/* #undef ZMQ_HAVE_NORM */
+
+/* Have OpenBSD OS */
+/* #undef ZMQ_HAVE_OPENBSD */
+
+/* Have OpenPGM extension */
+/* #undef ZMQ_HAVE_OPENPGM */
+
+/* Have DarwinOSX OS */
+/* #undef ZMQ_HAVE_OSX */
+
+/* Have QNX Neutrino OS */
+/* #undef ZMQ_HAVE_QNXNTO */
+
+/* Whether SOCK_CLOEXEC is defined and functioning. */
+/* #undef ZMQ_HAVE_SOCK_CLOEXEC */
+
+/* Have Solaris OS */
+/* #undef ZMQ_HAVE_SOLARIS */
+
+/* Whether SO_KEEPALIVE is supported. */
+#define ZMQ_HAVE_SO_KEEPALIVE 1
+
+/* Have SO_PEERCRED socket option */
+/* #undef ZMQ_HAVE_SO_PEERCRED */
+
+/* Whether TCP_KEEPALIVE is supported. */
+/* #undef ZMQ_HAVE_TCP_KEEPALIVE */
+
+/* Whether TCP_KEEPCNT is supported. */
+/* #undef ZMQ_HAVE_TCP_KEEPCNT */
+
+/* Whether TCP_KEEPIDLE is supported. */
+/* #undef ZMQ_HAVE_TCP_KEEPIDLE */
+
+/* Whether TCP_KEEPINTVL is supported. */
+/* #undef ZMQ_HAVE_TCP_KEEPINTVL */
+
+/* Have TIPC support */
+#define ZMQ_HAVE_TIPC 1
+
+/* Have uio.h header. */
+//#define ZMQ_HAVE_UIO 1
+
+#define ZMQ_USE_SELECT 1
+
+/* Have Windows OS */
+/* #undef ZMQ_HAVE_WINDOWS */
+
+/* Define for Solaris 2.5.1 so the uint32_t typedef from <sys/synch.h>,
+   <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+   #define below would cause a syntax error. */
+/* #undef _UINT32_T */
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+/* #undef inline */
+#endif
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* #undef size_t */
+
+/* Define to `int' if <sys/types.h> does not define. */
+/* #undef ssize_t */
+
+/* Define to the type of an unsigned integer type of width exactly 32 bits if
+   such a type exists and the standard includes do not define it. */
+/* #undef uint32_t */
+
+/* Define to empty if the keyword `volatile' does not work. Warning: valid
+   code using `volatile' can become incorrect without. Disable with care. */
+/* #undef volatile */
+
+/* ---- Special case for z/OS Unix Services: openedition ---- */
+#include <vxWorks.h>
+
+#ifndef   NI_MAXHOST
+#define   NI_MAXHOST 1025
+#endif

src/address.cpp

@@ -66,7 +66,8 @@ zmq::address_t::~address_t ()
             LIBZMQ_DELETE (resolved.udp_addr);
         }
     }
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
     else if (protocol == "ipc") {
         if (resolved.ipc_addr) {
             LIBZMQ_DELETE (resolved.ipc_addr);
@@ -99,7 +100,8 @@ int zmq::address_t::to_string (std::string &addr_) const
         if (resolved.udp_addr)
             return resolved.udp_addr->to_string (addr_);
     }
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
     else if (protocol == "ipc") {
         if (resolved.ipc_addr)
             return resolved.ipc_addr->to_string (addr_);

src/address.hpp

@@ -40,7 +40,7 @@ class udp_address_t;
 #if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
 class ipc_address_t;
 #endif
-#if defined ZMQ_HAVE_LINUX
+#if defined ZMQ_HAVE_LINUX || defined ZMQ_HAVE_VXWORKS
 class tipc_address_t;
 #endif
 #if defined ZMQ_HAVE_VMCI
@@ -63,10 +63,11 @@ struct address_t
     {
         tcp_address_t *tcp_addr;
         udp_address_t *udp_addr;
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
         ipc_address_t *ipc_addr;
 #endif
-#if defined ZMQ_HAVE_LINUX
+#if defined ZMQ_HAVE_LINUX || defined ZMQ_HAVE_VXWORKS
         tipc_address_t *tipc_addr;
 #endif
 #if defined ZMQ_HAVE_VMCI

src/atomic_ptr.hpp

@@ -280,7 +280,11 @@ struct atomic_value_t
 #endif
 
 #if defined ZMQ_ATOMIC_PTR_MUTEX
+#if defined ZMQ_HAVE_VXWORKS
+    mutable mutex_t sync;
+#else
     mutex_t sync;
+#endif
 #endif
 
   private:

src/clock.cpp

@@ -52,6 +52,10 @@
 #include <time.h>
 #endif
 
+#if defined ZMQ_HAVE_VXWORKS
+#include "timers.h"
+#endif
+
 #if defined ZMQ_HAVE_OSX
 #include <mach/clock.h>
 #include <mach/mach.h>
@@ -154,7 +158,8 @@ uint64_t zmq::clock_t::now_us ()
     double ticks_div = ticksPerSecond.QuadPart / 1000000.0;
     return (uint64_t) (tick.QuadPart / ticks_div);
 
-#elif defined HAVE_CLOCK_GETTIME && defined CLOCK_MONOTONIC
+#elif defined HAVE_CLOCK_GETTIME                                               \
+  && (defined CLOCK_MONOTONIC || defined ZMQ_HAVE_VXWORKS)
 
     //  Use POSIX clock_gettime function to get precise monotonic time.
     struct timespec tv;
@@ -169,11 +174,13 @@ uint64_t zmq::clock_t::now_us ()
     // This should be a configuration check, but I looked into it and writing an
     // AC_FUNC_CLOCK_MONOTONIC seems beyond my powers.
     if (rc != 0) {
+#ifndef ZMQ_HAVE_VXWORKS
         //  Use POSIX gettimeofday function to get precise time.
         struct timeval tv;
         int rc = gettimeofday (&tv, NULL);
         errno_assert (rc == 0);
         return (tv.tv_sec * (uint64_t) 1000000 + tv.tv_usec);
+#endif
     }
     return (tv.tv_sec * (uint64_t) 1000000 + tv.tv_nsec / 1000);
 

src/condition_variable.hpp

@@ -170,6 +170,90 @@ class condition_variable_t
 
 #endif
 
+#elif defined ZMQ_HAVE_VXWORKS
+
+#include <sysLib.h>
+
+namespace zmq
+{
+class condition_variable_t
+{
+  public:
+    inline condition_variable_t () {}
+
+    inline ~condition_variable_t ()
+    {
+        scoped_lock_t l (m_listenersMutex);
+        for (size_t i = 0; i < m_listeners.size (); i++) {
+            semDelete (m_listeners[i]);
+        }
+    }
+
+    inline int wait (mutex_t *mutex_, int timeout_)
+    {
+        //Atomically releases lock, blocks the current executing thread,
+        //and adds it to the list of threads waiting on *this. The thread
+        //will be unblocked when broadcast() is executed.
+        //It may also be unblocked spuriously. When unblocked, regardless
+        //of the reason, lock is reacquired and wait exits.
+
+        SEM_ID sem = semBCreate (SEM_Q_PRIORITY, SEM_EMPTY);
+        {
+            scoped_lock_t l (m_listenersMutex);
+            m_listeners.push_back (sem);
+        }
+        mutex_->unlock ();
+
+        int rc;
+        if (timeout_ < 0)
+            rc = semTake (sem, WAIT_FOREVER);
+        else {
+            int ticksPerSec = sysClkRateGet ();
+            int timeoutTicks = (timeout_ * ticksPerSec) / 1000 + 1;
+            rc = semTake (sem, timeoutTicks);
+        }
+
+        {
+            scoped_lock_t l (m_listenersMutex);
+            // remove sem from listeners
+            for (size_t i = 0; i < m_listeners.size (); i++) {
+                if (m_listeners[i] == sem) {
+                    m_listeners.erase (m_listeners.begin () + i);
+                    break;
+                }
+            }
+            semDelete (sem);
+        }
+        mutex_->lock ();
+
+        if (rc == 0)
+            return 0;
+
+        if (rc == S_objLib_OBJ_TIMEOUT) {
+            errno = EAGAIN;
+            return -1;
+        }
+
+        return -1;
+    }
+
+    inline void broadcast ()
+    {
+        scoped_lock_t l (m_listenersMutex);
+        for (size_t i = 0; i < m_listeners.size (); i++) {
+            semGive (m_listeners[i]);
+        }
+    }
+
+  private:
+    mutex_t m_listenersMutex;
+    std::vector<SEM_ID> m_listeners;
+
+    // Disable copy construction and assignment.
+    condition_variable_t (const condition_variable_t &);
+    const condition_variable_t &operator= (const condition_variable_t &);
+};
+}
 #else
 
 #include <pthread.h>

src/ip.cpp

@@ -44,10 +44,16 @@
 #include "tcp.hpp"
 #endif
 
-#if defined ZMQ_HAVE_OPENVMS
+#if defined ZMQ_HAVE_OPENVMS || defined ZMQ_HAVE_VXWORKS
 #include <ioctl.h>
 #endif
 
+#if defined ZMQ_HAVE_VXWORKS
+#include <unistd.h>
+#include <sockLib.h>
+#include <ioLib.h>
+#endif
+
 #if defined ZMQ_HAVE_EVENTFD
 #include <sys/eventfd.h>
 #endif
@@ -106,7 +112,7 @@ void zmq::unblock_socket (fd_t s_)
     u_long nonblock = 1;
     int rc = ioctlsocket (s_, FIONBIO, &nonblock);
     wsa_assert (rc != SOCKET_ERROR);
-#elif defined ZMQ_HAVE_OPENVMS
+#elif defined ZMQ_HAVE_OPENVMS || defined ZMQ_HAVE_VXWORKS
     int nonblock = 1;
     int rc = ioctl (s_, FIONBIO, &nonblock);
     errno_assert (rc != -1);
@@ -129,8 +135,8 @@ void zmq::enable_ipv4_mapping (fd_t s_)
 #else
     int flag = 0;
 #endif
-    int rc = setsockopt (s_, IPPROTO_IPV6, IPV6_V6ONLY, (const char *) &flag,
+    int rc =
-                         sizeof (flag));
+      setsockopt (s_, IPPROTO_IPV6, IPV6_V6ONLY, (char *) &flag, sizeof (flag));
 #ifdef ZMQ_HAVE_WINDOWS
     wsa_assert (rc != SOCKET_ERROR);
 #else
@@ -144,7 +150,8 @@ int zmq::get_peer_ip_address (fd_t sockfd_, std::string &ip_addr_)
     int rc;
     struct sockaddr_storage ss;
 
-#if defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_WINDOWS
+#if defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_WINDOWS                          \
+  || defined ZMQ_HAVE_VXWORKS
     int addrlen = static_cast<int> (sizeof ss);
 #else
     socklen_t addrlen = sizeof ss;
@@ -185,9 +192,8 @@ int zmq::get_peer_ip_address (fd_t sockfd_, std::string &ip_addr_)
 
 void zmq::set_ip_type_of_service (fd_t s_, int iptos)
 {
-    int rc =
+    int rc = setsockopt (s_, IPPROTO_IP, IP_TOS,
-      setsockopt (s_, IPPROTO_IP, IP_TOS,
+                         reinterpret_cast<char *> (&iptos), sizeof (iptos));
-                  reinterpret_cast<const char *> (&iptos), sizeof (iptos));
 
 #ifdef ZMQ_HAVE_WINDOWS
     wsa_assert (rc != SOCKET_ERROR);
@@ -198,7 +204,7 @@ void zmq::set_ip_type_of_service (fd_t s_, int iptos)
     //  Windows and Hurd do not support IPV6_TCLASS
 #if !defined(ZMQ_HAVE_WINDOWS) && defined(IPV6_TCLASS)
     rc = setsockopt (s_, IPPROTO_IPV6, IPV6_TCLASS,
-                     reinterpret_cast<const char *> (&iptos), sizeof (iptos));
+                     reinterpret_cast<char *> (&iptos), sizeof (iptos));
 
     //  If IPv6 is not enabled ENOPROTOOPT will be returned on Linux and
     //  EINVAL on OSX
@@ -577,7 +583,48 @@ int zmq::make_fdpair (fd_t *r_, fd_t *w_)
     close (listener);
 
     return 0;
+#elif defined ZMQ_HAVE_VXWORKS
+    struct sockaddr_in lcladdr;
+    memset (&lcladdr, 0, sizeof lcladdr);
+    lcladdr.sin_family = AF_INET;
+    lcladdr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+    lcladdr.sin_port = 0;
 
+    int listener = open_socket (AF_INET, SOCK_STREAM, 0);
+    errno_assert (listener != -1);
+
+    int on = 1;
+    int rc =
+      setsockopt (listener, IPPROTO_TCP, TCP_NODELAY, (char *) &on, sizeof on);
+    errno_assert (rc != -1);
+
+    rc = bind (listener, (struct sockaddr *) &lcladdr, sizeof lcladdr);
+    errno_assert (rc != -1);
+
+    socklen_t lcladdr_len = sizeof lcladdr;
+
+    rc = getsockname (listener, (struct sockaddr *) &lcladdr,
+                      (int *) &lcladdr_len);
+    errno_assert (rc != -1);
+
+    rc = listen (listener, 1);
+    errno_assert (rc != -1);
+
+    *w_ = open_socket (AF_INET, SOCK_STREAM, 0);
+    errno_assert (*w_ != -1);
+
+    rc = setsockopt (*w_, IPPROTO_TCP, TCP_NODELAY, (char *) &on, sizeof on);
+    errno_assert (rc != -1);
+
+    rc = connect (*w_, (struct sockaddr *) &lcladdr, sizeof lcladdr);
+    errno_assert (rc != -1);
+
+    *r_ = accept (listener, NULL, NULL);
+    errno_assert (*r_ != -1);
+
+    close (listener);
+
+    return 0;
 #else
     // All other implementations support socketpair()
     int sv[2];
@@ -594,9 +641,9 @@ int zmq::make_fdpair (fd_t *r_, fd_t *w_)
         *w_ = *r_ = -1;
         return -1;
     } else {
-    //  If there's no SOCK_CLOEXEC, let's try the second best option. Note that
+        //  If there's no SOCK_CLOEXEC, let's try the second best option. Note that
-    //  race condition can cause socket not to be closed (if fork happens
+        //  race condition can cause socket not to be closed (if fork happens
-    //  between socket creation and this point).
+        //  between socket creation and this point).
 #if !defined ZMQ_HAVE_SOCK_CLOEXEC && defined FD_CLOEXEC
         rc = fcntl (sv[0], F_SETFD, FD_CLOEXEC);
         errno_assert (rc != -1);

src/ipc_address.cpp

@@ -30,7 +30,8 @@
 #include "precompiled.hpp"
 #include "ipc_address.hpp"
 
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
 
 #include "err.hpp"
 

src/ipc_address.hpp

@@ -32,7 +32,8 @@
 
 #include <string>
 
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
 
 #include <sys/socket.h>
 #include <sys/un.h>

src/ipc_connecter.cpp

@@ -30,7 +30,8 @@
 #include "precompiled.hpp"
 #include "ipc_connecter.hpp"
 
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
 
 #include <new>
 #include <string>
@@ -49,6 +50,7 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 
+
 zmq::ipc_connecter_t::ipc_connecter_t (class io_thread_t *io_thread_,
                                        class session_base_t *session_,
                                        const options_t &options_,

src/ipc_connecter.hpp

@@ -30,7 +30,8 @@
 #ifndef __IPC_CONNECTER_HPP_INCLUDED__
 #define __IPC_CONNECTER_HPP_INCLUDED__
 
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
 
 #include "fd.hpp"
 #include "own.hpp"

src/ipc_listener.cpp

@@ -30,7 +30,8 @@
 #include "precompiled.hpp"
 #include "ipc_listener.hpp"
 
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
 
 #include <new>
 
@@ -69,6 +70,7 @@ const char *zmq::ipc_listener_t::tmp_env_vars[] = {
   0 // Sentinel
 };
 
+
 int zmq::ipc_listener_t::create_wildcard_address (std::string &path_,
                                                   std::string &file_)
 {
@@ -263,7 +265,7 @@ int zmq::ipc_listener_t::set_address (const char *addr_)
         }
 
         //  Bind the socket to the file path.
-        rc = bind (s, address.addr (), address.addrlen ());
+        rc = bind (s, (sockaddr *) address.addr (), address.addrlen ());
         if (rc != 0)
             goto error;
 

src/ipc_listener.hpp

@@ -30,7 +30,8 @@
 #ifndef __ZMQ_IPC_LISTENER_HPP_INCLUDED__
 #define __ZMQ_IPC_LISTENER_HPP_INCLUDED__
 
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
 
 #include <string>
 

src/mutex.hpp

@@ -67,6 +67,45 @@ class mutex_t
 };
 }
 
+#elif defined ZMQ_HAVE_VXWORKS
+
+#include <vxWorks.h>
+#include <semLib.h>
+
+namespace zmq
+{
+class mutex_t
+{
+  public:
+    inline mutex_t ()
+    {
+        m_semId =
+          semMCreate (SEM_Q_PRIORITY | SEM_INVERSION_SAFE | SEM_DELETE_SAFE);
+    }
+
+    inline ~mutex_t () { semDelete (m_semId); }
+
+    inline void lock () { semTake (m_semId, WAIT_FOREVER); }
+
+    inline bool try_lock ()
+    {
+        if (semTake (m_semId, NO_WAIT) == OK) {
+            return true;
+        }
+        return false;
+    }
+
+    inline void unlock () { semGive (m_semId); }
+
+  private:
+    SEM_ID m_semId;
+
+    // Disable copy construction and assignment.
+    mutex_t (const mutex_t &);
+    const mutex_t &operator= (const mutex_t &);
+};
+}
+
 #else
 
 #include <pthread.h>

src/options.cpp

@@ -717,10 +717,10 @@ int zmq::options_t::setsockopt (int option_,
             break;
     }
 
-            // TODO mechanism should either be set explicitly, or determined when
+        // TODO mechanism should either be set explicitly, or determined when
-            // connecting. currently, it depends on the order of setsockopt calls
+        // connecting. currently, it depends on the order of setsockopt calls
-            // if there is some inconsistency, which is confusing. in addition,
+        // if there is some inconsistency, which is confusing. in addition,
-            // the assumed or set mechanism should be queryable (as a socket option)
+        // the assumed or set mechanism should be queryable (as a socket option)
 
 #if defined(ZMQ_ACT_MILITANT)
     //  There is no valid use case for passing an error back to the application

src/select.cpp

@@ -39,6 +39,10 @@
 #elif defined ZMQ_HAVE_OPENVMS
 #include <sys/types.h>
 #include <sys/time.h>
+#elif defined ZMQ_HAVE_VXWORKS
+#include <sys/types.h>
+#include <sys/time.h>
+#include <strings.h>
 #else
 #include <sys/select.h>
 #endif

src/session_base.cpp

@@ -576,7 +576,8 @@ void zmq::session_base_t::start_connecting (bool wait_)
         return;
     }
 
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
     if (addr->protocol == "ipc") {
         ipc_connecter_t *connecter = new (std::nothrow)
           ipc_connecter_t (io_thread, this, options, addr, wait_);

src/signaler.cpp

@@ -53,6 +53,11 @@
 #elif defined ZMQ_HAVE_OPENVMS
 #include <sys/types.h>
 #include <sys/time.h>
+#elif defined ZMQ_HAVE_VXWORKS
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sockLib.h>
+#include <strings.h>
 #else
 #include <sys/select.h>
 #endif
@@ -87,6 +92,11 @@ static int sleep_ms (unsigned int ms_)
 #elif defined ZMQ_HAVE_ANDROID
     usleep (ms_ * 1000);
     return 0;
+#elif defined ZMQ_HAVE_VXWORKS
+    struct timespec ns_;
+    ns_.tv_sec = ms_ / 1000;
+    ns_.tv_nsec = ms_ % 1000 * 1000000;
+    return nanosleep (&ns_, 0);
 #else
     return usleep (ms_ * 1000);
 #endif
@@ -194,6 +204,22 @@ void zmq::signaler_t::send ()
         zmq_assert (nbytes == sizeof (dummy));
         break;
     }
+#elif defined ZMQ_HAVE_VXWORKS
+    unsigned char dummy = 0;
+    while (true) {
+        ssize_t nbytes = ::send (w, (char *) &dummy, sizeof (dummy), 0);
+        if (unlikely (nbytes == -1 && errno == EINTR))
+            continue;
+#if defined(HAVE_FORK)
+        if (unlikely (pid != getpid ())) {
+            //printf("Child process %d signaler_t::send returning without sending #2\n", getpid());
+            errno = EINTR;
+            break;
+        }
+#endif
+        zmq_assert (nbytes == sizeof dummy);
+        break;
+    }
 #else
     unsigned char dummy = 0;
     while (true) {
@@ -305,6 +331,9 @@ void zmq::signaler_t::recv ()
 #if defined ZMQ_HAVE_WINDOWS
     int nbytes = ::recv (r, (char *) &dummy, sizeof (dummy), 0);
     wsa_assert (nbytes != SOCKET_ERROR);
+#elif defined ZMQ_HAVE_VXWORKS
+    ssize_t nbytes = ::recv (r, (char *) &dummy, sizeof (dummy), 0);
+    errno_assert (nbytes >= 0);
 #else
     ssize_t nbytes = ::recv (r, &dummy, sizeof (dummy), 0);
     errno_assert (nbytes >= 0);
@@ -349,6 +378,16 @@ int zmq::signaler_t::recv_failable ()
         }
         wsa_assert (last_error == WSAEWOULDBLOCK);
     }
+#elif defined ZMQ_HAVE_VXWORKS
+    ssize_t nbytes = ::recv (r, (char *) &dummy, sizeof (dummy), 0);
+    if (nbytes == -1) {
+        if (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR) {
+            errno = EAGAIN;
+            return -1;
+        }
+        errno_assert (errno == EAGAIN || errno == EWOULDBLOCK
+                      || errno == EINTR);
+    }
 #else
     ssize_t nbytes = ::recv (r, &dummy, sizeof (dummy), 0);
     if (nbytes == -1) {

src/socket_base.cpp

@@ -288,7 +288,8 @@ int zmq::socket_base_t::check_protocol (const std::string &protocol_)
 {
     //  First check out whether the protocol is something we are aware of.
     if (protocol_ != "inproc"
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
         && protocol_ != "ipc"
 #endif
         && protocol_ != "tcp"
@@ -312,9 +313,9 @@ int zmq::socket_base_t::check_protocol (const std::string &protocol_)
         return -1;
     }
 
-        //  Check whether socket type and transport protocol match.
+    //  Check whether socket type and transport protocol match.
-        //  Specifically, multicast protocols can't be combined with
+    //  Specifically, multicast protocols can't be combined with
-        //  bi-directional messaging patterns (socket types).
+    //  bi-directional messaging patterns (socket types).
 #if defined ZMQ_HAVE_OPENPGM || defined ZMQ_HAVE_NORM
     if ((protocol_ == "pgm" || protocol_ == "epgm" || protocol_ == "norm")
         && options.type != ZMQ_PUB && options.type != ZMQ_SUB
@@ -591,7 +592,8 @@ int zmq::socket_base_t::bind (const char *addr_)
         return 0;
     }
 
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
     if (protocol == "ipc") {
         ipc_listener_t *listener =
           new (std::nothrow) ipc_listener_t (io_thread, this, options);
@@ -847,7 +849,8 @@ int zmq::socket_base_t::connect (const char *addr_)
         //  Defer resolution until a socket is opened
         paddr->resolved.tcp_addr = NULL;
     }
-#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
+#if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS                     \
+  && !defined ZMQ_HAVE_VXWORKS
     else if (protocol == "ipc") {
         paddr->resolved.ipc_addr = new (std::nothrow) ipc_address_t ();
         alloc_assert (paddr->resolved.ipc_addr);
@@ -875,7 +878,7 @@ int zmq::socket_base_t::connect (const char *addr_)
         }
     }
 
-        // TBD - Should we check address for ZMQ_HAVE_NORM???
+    // TBD - Should we check address for ZMQ_HAVE_NORM???
 
 #ifdef ZMQ_HAVE_OPENPGM
     if (protocol == "pgm" || protocol == "epgm") {

src/socket_poller.cpp

@@ -541,6 +541,12 @@ int zmq::socket_poller_t::wait (zmq::socket_poller_t::event_t *events_,
         usleep (timeout_ * 1000);
         errno = EAGAIN;
         return -1;
+#elif defined ZMQ_HAVE_VXWORKS
+        struct timespec ns_;
+        ns_.tv_sec = timeout_ / 1000;
+        ns_.tv_nsec = timeout_ % 1000 * 1000000;
+        nanosleep (&ns_, 0);
+        return -1;
 #else
         usleep (timeout_ * 1000);
         return -1;

src/socket_poller.hpp

@@ -38,6 +38,10 @@
 
 #if defined ZMQ_HAVE_WINDOWS
 #include "windows.hpp"
+#elif defined ZMQ_HAVE_VXWORKS
+#include <unistd.h>
+#include <sys/time.h>
+#include <strings.h>
 #else
 #include <unistd.h>
 #endif

src/socks_connecter.cpp

@@ -47,6 +47,9 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/socket.h>
+#if defined ZMQ_HAVE_VXWORKS
+#include <sockLib.h>
+#endif
 #endif
 
 zmq::socks_connecter_t::socks_connecter_t (class io_thread_t *io_thread_,
@@ -342,7 +345,12 @@ int zmq::socks_connecter_t::connect_to_proxy ()
 
     // Set a source address for conversations
     if (tcp_addr->has_src_addr ()) {
+#if defined ZMQ_HAVE_VXWORKS
+        rc = ::bind (s, (sockaddr *) tcp_addr->src_addr (),
+                     tcp_addr->src_addrlen ());
+#else
         rc = ::bind (s, tcp_addr->src_addr (), tcp_addr->src_addrlen ());
+#endif
         if (rc == -1) {
             close ();
             return -1;
@@ -350,8 +358,11 @@ int zmq::socks_connecter_t::connect_to_proxy ()
     }
 
     //  Connect to the remote peer.
+#if defined ZMQ_HAVE_VXWORKS
+    rc = ::connect (s, (sockaddr *) tcp_addr->addr (), tcp_addr->addrlen ());
+#else
     rc = ::connect (s, tcp_addr->addr (), tcp_addr->addrlen ());
-
+#endif
     //  Connect was successful immediately.
     if (rc == 0)
         return 0;
@@ -377,7 +388,7 @@ zmq::fd_t zmq::socks_connecter_t::check_proxy_connection ()
 {
     //  Async connect has finished. Check whether an error occurred
     int err = 0;
-#ifdef ZMQ_HAVE_HPUX
+#if defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_VXWORKS
     int len = sizeof err;
 #else
     socklen_t len = sizeof err;

src/tcp.cpp

@@ -39,6 +39,9 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <netinet/tcp.h>
+#ifdef ZMQ_HAVE_VXWORKS
+#include <sockLib.h>
+#endif
 #endif
 
 #if defined ZMQ_HAVE_OPENVMS
@@ -224,7 +227,7 @@ int zmq::tcp_write (fd_t s_, const void *data_, size_t size_)
     return nbytes;
 
 #else
-    ssize_t nbytes = send (s_, data_, size_, 0);
+    ssize_t nbytes = send (s_, (char *) data_, size_, 0);
 
     //  Several errors are OK. When speculative write is being done we may not
     //  be able to write a single byte from the socket. Also, SIGSTOP issued
@@ -273,7 +276,7 @@ int zmq::tcp_read (fd_t s_, void *data_, size_t size_)
 
 #else
 
-    const ssize_t rc = recv (s_, data_, size_, 0);
+    const ssize_t rc = recv (s_, (char *) data_, size_, 0);
 
     //  Several errors are OK. When speculative read is being done we may not
     //  be able to read a single byte from the socket. Also, SIGSTOP issued
@@ -297,7 +300,7 @@ void zmq::tcp_assert_tuning_error (zmq::fd_t s_, int rc_)
 
     //  Check whether an error occurred
     int err = 0;
-#ifdef ZMQ_HAVE_HPUX
+#if defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_VXWORKS
     int len = sizeof err;
 #else
     socklen_t len = sizeof err;

src/tcp_address.cpp

@@ -113,8 +113,12 @@ int zmq::tcp_address_t::resolve_nic_name (const char *nic_,
     return 0;
 }
 
-#elif defined ZMQ_HAVE_AIX || defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_ANDROID
+#elif defined ZMQ_HAVE_AIX || defined ZMQ_HAVE_HPUX                            \
+  || defined ZMQ_HAVE_ANDROID || defined ZMQ_HAVE_VXWORKS
 #include <sys/ioctl.h>
+#ifdef ZMQ_HAVE_VXWORKS
+#include <ioLib.h>
+#endif
 
 int zmq::tcp_address_t::resolve_nic_name (const char *nic_,
                                           bool ipv6_,
@@ -413,7 +417,12 @@ int zmq::tcp_address_t::resolve_interface (const char *interface_,
         sockaddr_in6 ip6_addr;
         memset (&ip6_addr, 0, sizeof (ip6_addr));
         ip6_addr.sin6_family = AF_INET6;
+#ifdef ZMQ_HAVE_VXWORKS
+        struct in6_addr newaddr = IN6ADDR_ANY_INIT;
+        memcpy (&ip6_addr.sin6_addr, &newaddr, sizeof (in6_addr));
+#else
         memcpy (&ip6_addr.sin6_addr, &in6addr_any, sizeof (in6addr_any));
+#endif
         out_addrlen = sizeof (ip6_addr);
         memcpy (out_addr, &ip6_addr, out_addrlen);
     } else {
@@ -646,7 +655,8 @@ int zmq::tcp_address_t::resolve (const char *name_,
         std::string if_str = addr_str.substr (pos + 1);
         addr_str = addr_str.substr (0, pos);
         if (isalpha (if_str.at (0)))
-#if !defined ZMQ_HAVE_WINDOWS_TARGET_XP && !defined ZMQ_HAVE_WINDOWS_UWP
+#if !defined ZMQ_HAVE_WINDOWS_TARGET_XP && !defined ZMQ_HAVE_WINDOWS_UWP       \
+  && !defined ZMQ_HAVE_VXWORKS
             zone_id = if_nametoindex (if_str.c_str ());
 #else
             // The function 'if_nametoindex' is not supported on Windows XP.

src/tcp_connecter.cpp

@@ -52,6 +52,9 @@
 #include <netinet/in.h>
 #include <netdb.h>
 #include <fcntl.h>
+#ifdef ZMQ_HAVE_VXWORKS
+#include <sockLib.h>
+#endif
 #ifdef ZMQ_HAVE_OPENVMS
 #include <ioctl.h>
 #endif
@@ -325,26 +328,38 @@ int zmq::tcp_connecter_t::open ()
         rc = setsockopt (s, SOL_SOCKET, SO_REUSEADDR, (const char *) &flag,
                          sizeof (int));
         wsa_assert (rc != SOCKET_ERROR);
+#elif defined ZMQ_HAVE_VXWORKS
+        rc = setsockopt (s, SOL_SOCKET, SO_REUSEADDR, (char *) &flag,
+                         sizeof (int));
+        errno_assert (rc == 0);
 #else
         rc = setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &flag, sizeof (int));
         errno_assert (rc == 0);
 #endif
 
+#if defined ZMQ_HAVE_VXWORKS
+        rc = ::bind (s, (sockaddr *) tcp_addr->src_addr (),
+                     tcp_addr->src_addrlen ());
+#else
         rc = ::bind (s, tcp_addr->src_addr (), tcp_addr->src_addrlen ());
+#endif
         if (rc == -1)
             return -1;
     }
 
     //  Connect to the remote peer.
+#if defined ZMQ_HAVE_VXWORKS
+    rc = ::connect (s, (sockaddr *) tcp_addr->addr (), tcp_addr->addrlen ());
+#else
     rc = ::connect (s, tcp_addr->addr (), tcp_addr->addrlen ());
-
+#endif
     //  Connect was successful immediately.
     if (rc == 0) {
         return 0;
     }
 
-        //  Translate error codes indicating asynchronous connect has been
+    //  Translate error codes indicating asynchronous connect has been
-        //  launched to a uniform EINPROGRESS.
+    //  launched to a uniform EINPROGRESS.
 #ifdef ZMQ_HAVE_WINDOWS
     const int last_error = WSAGetLastError ();
     if (last_error == WSAEINPROGRESS || last_error == WSAEWOULDBLOCK)
@@ -362,7 +377,7 @@ zmq::fd_t zmq::tcp_connecter_t::connect ()
 {
     //  Async connect has finished. Check whether an error occurred
     int err = 0;
-#ifdef ZMQ_HAVE_HPUX
+#if defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_VXWORKS
     int len = sizeof err;
 #else
     socklen_t len = sizeof err;

src/tcp_listener.cpp

@@ -51,6 +51,9 @@
 #include <netinet/in.h>
 #include <netdb.h>
 #include <fcntl.h>
+#ifdef ZMQ_HAVE_VXWORKS
+#include <sockLib.h>
+#endif
 #endif
 
 #ifdef ZMQ_HAVE_OPENVMS
@@ -149,7 +152,7 @@ int zmq::tcp_listener_t::get_address (std::string &addr_)
 {
     // Get the details of the TCP socket
     struct sockaddr_storage ss;
-#ifdef ZMQ_HAVE_HPUX
+#if defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_VXWORKS
     int sl = sizeof (ss);
 #else
     socklen_t sl = sizeof (ss);
@@ -236,13 +239,20 @@ int zmq::tcp_listener_t::set_address (const char *addr_)
     rc = setsockopt (s, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, (const char *) &flag,
                      sizeof (int));
     wsa_assert (rc != SOCKET_ERROR);
+#elif defined ZMQ_HAVE_VXWORKS
+    rc = setsockopt (s, SOL_SOCKET, SO_REUSEADDR, (char *) &flag, sizeof (int));
+    errno_assert (rc == 0);
 #else
     rc = setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &flag, sizeof (int));
     errno_assert (rc == 0);
 #endif
 
     //  Bind the socket to the network interface and port.
+#if defined ZMQ_HAVE_VXWORKS
+    rc = bind (s, (sockaddr *) address.addr (), address.addrlen ());
+#else
     rc = bind (s, address.addr (), address.addrlen ());
+#endif
 #ifdef ZMQ_HAVE_WINDOWS
     if (rc == SOCKET_ERROR) {
         errno = wsa_error_to_errno (WSAGetLastError ());
@@ -284,7 +294,7 @@ zmq::fd_t zmq::tcp_listener_t::accept ()
 
     struct sockaddr_storage ss;
     memset (&ss, 0, sizeof (ss));
-#ifdef ZMQ_HAVE_HPUX
+#if defined ZMQ_HAVE_HPUX || defined ZMQ_HAVE_VXWORKS
     int ss_len = sizeof (ss);
 #else
     socklen_t ss_len = sizeof (ss);

src/thread.cpp

@@ -97,6 +97,66 @@ void zmq::thread_t::setThreadName (const char *name_)
     LIBZMQ_UNUSED (name_);
 }
 
+#elif defined ZMQ_HAVE_VXWORKS
+
+extern "C" {
+static void *thread_routine (void *arg_)
+{
+    zmq::thread_t *self = (zmq::thread_t *) arg_;
+    self->applySchedulingParameters ();
+    self->tfn (self->arg);
+    return NULL;
+}
+}
+
+void zmq::thread_t::start (thread_fn *tfn_, void *arg_)
+{
+    tfn = tfn_;
+    arg = arg_;
+    descriptor = taskSpawn (NULL, DEFAULT_PRIORITY, DEFAULT_OPTIONS,
+                            DEFAULT_STACK_SIZE, (FUNCPTR) thread_routine,
+                            (int) this, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    if (descriptor != NULL || descriptor > 0)
+        started = true;
+}
+
+void zmq::thread_t::stop ()
+{
+    if (started)
+        while ((descriptor != NULL || descriptor > 0)
+               && taskIdVerify (descriptor) == 0) {
+        }
+}
+
+bool zmq::thread_t::is_current_thread () const
+{
+    return taskIdSelf () == descriptor;
+}
+
+void zmq::thread_t::setSchedulingParameters (
+  int priority_, int schedulingPolicy_, const std::set<int> &affinity_cpus_)
+{
+    thread_priority = priority_;
+    thread_sched_policy = schedulingPolicy_;
+    thread_affinity_cpus = affinity_cpus_;
+}
+
+void zmq::thread_t::
+  applySchedulingParameters () // to be called in secondary thread context
+{
+    int priority = (thread_priority >= 0 ? thread_priority : DEFAULT_PRIORITY);
+    priority = (priority < 255 ? priority : DEFAULT_PRIORITY);
+    if (descriptor != NULL || descriptor > 0) {
+        taskPrioritySet (descriptor, priority);
+    }
+}
+
+void zmq::thread_t::setThreadName (const char *name_)
+{
+    // not implemented
+    LIBZMQ_UNUSED (name_);
+}
+
 #else
 
 #include <signal.h>
@@ -206,6 +266,7 @@ void zmq::thread_t::
 
     posix_assert (rc);
 
+#if !defined ZMQ_HAVE_VXWORKS
     if (use_nice_instead_priority
         && thread_priority != ZMQ_THREAD_PRIORITY_DFLT) {
         // assume the user wants to decrease the thread's nice value
@@ -217,6 +278,7 @@ void zmq::thread_t::
         // IMPORTANT: EPERM is typically returned for unprivileged processes: that's because
         //            CAP_SYS_NICE capability is required or RLIMIT_NICE resource limit should be changed to avoid EPERM!
     }
+#endif
 
 #ifdef ZMQ_HAVE_PTHREAD_SET_AFFINITY
     if (!thread_affinity_cpus.empty ()) {

src/thread.hpp

@@ -30,7 +30,10 @@
 #ifndef __ZMQ_THREAD_HPP_INCLUDED__
 #define __ZMQ_THREAD_HPP_INCLUDED__
 
-#ifndef ZMQ_HAVE_WINDOWS
+#if defined ZMQ_HAVE_VXWORKS
+#include <vxWorks.h>
+#include <taskLib.h>
+#elif !defined ZMQ_HAVE_WINDOWS
 #include <pthread.h>
 #endif
 #include <set>
@@ -58,6 +61,15 @@ class thread_t
     {
     }
 
+#ifdef ZMQ_HAVE_VXWORKS
+    ~thread_t ()
+    {
+        if (descriptor != NULL || descriptor > 0) {
+            taskDelete (descriptor);
+        }
+    }
+#endif
+
     //  Creates OS thread. 'tfn' is main thread function. It'll be passed
     //  'arg' as an argument.
     void start (thread_fn *tfn_, void *arg_);
@@ -93,6 +105,14 @@ class thread_t
 
 #ifdef ZMQ_HAVE_WINDOWS
     HANDLE descriptor;
+#elif defined ZMQ_HAVE_VXWORKS
+    int descriptor;
+    enum
+    {
+        DEFAULT_PRIORITY = 100,
+        DEFAULT_OPTIONS = 0,
+        DEFAULT_STACK_SIZE = 4000
+    };
 #else
     pthread_t descriptor;
 #endif

src/tipc_address.hpp

@@ -37,7 +37,11 @@
 #if defined ZMQ_HAVE_TIPC
 
 #include <sys/socket.h>
+#if defined ZMQ_HAVE_VXWORKS
+#include <tipc/tipc.h>
+#else
 #include <linux/tipc.h>
+#endif
 
 namespace zmq
 {

src/tipc_connecter.cpp

@@ -49,6 +49,9 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/socket.h>
+#ifdef ZMQ_HAVE_VXWORKS
+#include <sockLib.h>
+#endif
 
 zmq::tipc_connecter_t::tipc_connecter_t (class io_thread_t *io_thread_,
                                          class session_base_t *session_,
@@ -217,9 +220,13 @@ int zmq::tipc_connecter_t::open ()
     //  Set the non-blocking flag.
     unblock_socket (s);
     //  Connect to the remote peer.
+#ifdef ZMQ_HAVE_VXWORKS
+    int rc = ::connect (s, (sockaddr *) addr->resolved.tipc_addr->addr (),
+                        addr->resolved.tipc_addr->addrlen ());
+#else
     int rc = ::connect (s, addr->resolved.tipc_addr->addr (),
                         addr->resolved.tipc_addr->addrlen ());
-
+#endif
     //  Connect was successful immediately.
     if (rc == 0)
         return 0;
@@ -248,8 +255,11 @@ zmq::fd_t zmq::tipc_connecter_t::connect ()
     //  Following code should handle both Berkeley-derived socket
     //  implementations and Solaris.
     int err = 0;
+#if ZMQ_HAVE_VXWORKS
+    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;

src/tipc_listener.cpp

@@ -49,7 +49,12 @@
 #include <unistd.h>
 #include <sys/socket.h>
 #include <fcntl.h>
+#if defined ZMQ_HAVE_VXWORKS
+#include <sockLib.h>
+#include <tipc/tipc.h>
+#else
 #include <linux/tipc.h>
+#endif
 
 zmq::tipc_listener_t::tipc_listener_t (io_thread_t *io_thread_,
                                        socket_base_t *socket_,
@@ -116,7 +121,11 @@ int zmq::tipc_listener_t::get_address (std::string &addr_)
     struct sockaddr_storage ss;
     socklen_t sl = sizeof (ss);
 
+#ifdef ZMQ_HAVE_VXWORKS
+    int rc = getsockname (s, (sockaddr *) &ss, (int *) &sl);
+#else
     int rc = getsockname (s, (sockaddr *) &ss, &sl);
+#endif
     if (rc != 0) {
         addr_.clear ();
         return rc;
@@ -148,7 +157,11 @@ int zmq::tipc_listener_t::set_address (const char *addr_)
     // If random Port Identity, update address object to reflect the assigned address
     if (address.is_random ()) {
         struct sockaddr_storage ss;
+#ifdef ZMQ_HAVE_VXWORKS
+        int sl = sizeof (ss);
+#else
         socklen_t sl = sizeof (ss);
+#endif
         int rc = getsockname (s, (sockaddr *) &ss, &sl);
         if (rc != 0)
             goto error;
@@ -161,7 +174,11 @@ int zmq::tipc_listener_t::set_address (const char *addr_)
 
     //  Bind the socket to tipc name
     if (address.is_service ()) {
+#ifdef ZMQ_HAVE_VXWORKS
+        rc = bind (s, (sockaddr *) address.addr (), address.addrlen ());
+#else
         rc = bind (s, address.addr (), address.addrlen ());
+#endif
         if (rc != 0)
             goto error;
     }
@@ -199,7 +216,11 @@ zmq::fd_t zmq::tipc_listener_t::accept ()
     socklen_t ss_len = sizeof (ss);
 
     zmq_assert (s != retired_fd);
+#ifdef ZMQ_HAVE_VXWORKS
+    fd_t sock = ::accept (s, (struct sockaddr *) &ss, (int *) &ss_len);
+#else
     fd_t sock = ::accept (s, (struct sockaddr *) &ss, &ss_len);
+#endif
     if (sock == -1) {
         errno_assert (errno == EAGAIN || errno == EWOULDBLOCK
                       || errno == ENOBUFS || errno == EINTR

src/udp_engine.cpp

@@ -35,6 +35,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#ifdef ZMQ_HAVE_VXWORKS
+#include <sockLib.h>
+#endif
 #endif
 
 #include "udp_engine.hpp"
@@ -128,8 +131,13 @@ void zmq::udp_engine_t::plug (io_thread_t *io_thread_, session_base_t *session_)
         errno_assert (rc == 0);
 #endif
 
+#ifdef ZMQ_HAVE_VXWORKS
+        rc = bind (fd, (sockaddr *) address->resolved.udp_addr->bind_addr (),
+                   address->resolved.udp_addr->bind_addrlen ());
+#else
         rc = bind (fd, address->resolved.udp_addr->bind_addr (),
                    address->resolved.udp_addr->bind_addrlen ());
+#endif
 #ifdef ZMQ_HAVE_WINDOWS
         wsa_assert (rc != SOCKET_ERROR);
 #else
@@ -282,6 +290,10 @@ void zmq::udp_engine_t::out_event ()
         rc = sendto (fd, (const char *) out_buffer, (int) size, 0, out_address,
                      (int) out_addrlen);
         wsa_assert (rc != SOCKET_ERROR);
+#elif defined ZMQ_HAVE_VXWORKS
+        rc = sendto (fd, (caddr_t) out_buffer, size, 0,
+                     (sockaddr *) out_address, (int) out_addrlen);
+        errno_assert (rc != -1);
 #else
         rc = sendto (fd, out_buffer, size, 0, out_address, out_addrlen);
         errno_assert (rc != -1);
@@ -321,6 +333,14 @@ void zmq::udp_engine_t::in_event ()
                     || last_error == WSAEWOULDBLOCK);
         return;
     }
+#elif defined ZMQ_HAVE_VXWORKS
+    int nbytes = recvfrom (fd, (char *) in_buffer, MAX_UDP_MSG, 0,
+                           (sockaddr *) &in_address, (int *) &in_addrlen);
+    if (nbytes == -1) {
+        errno_assert (errno != EBADF && errno != EFAULT && errno != ENOMEM
+                      && errno != ENOTSOCK);
+        return;
+    }
 #else
     int nbytes = recvfrom (fd, in_buffer, MAX_UDP_MSG, 0,
                            (sockaddr *) &in_address, &in_addrlen);

src/ypipe.hpp

@@ -62,9 +62,9 @@ template <typename T, int N> class ypipe_t : public ypipe_base_t<T>
     //  just to keep ICC and code checking tools from complaining.
     inline virtual ~ypipe_t () {}
 
-        //  Following function (write) deliberately copies uninitialised data
+    //  Following function (write) deliberately copies uninitialised data
-        //  when used with zmq_msg. Initialising the VSM body for
+    //  when used with zmq_msg. Initialising the VSM body for
-        //  non-VSM messages won't be good for performance.
+    //  non-VSM messages won't be good for performance.
 
 #ifdef ZMQ_HAVE_OPENVMS
 #pragma message save

src/ypipe_conflate.hpp

@@ -53,9 +53,9 @@ template <typename T> class ypipe_conflate_t : public ypipe_base_t<T>
     //  just to keep ICC and code checking tools from complaining.
     inline virtual ~ypipe_conflate_t () {}
 
-        //  Following function (write) deliberately copies uninitialised data
+    //  Following function (write) deliberately copies uninitialised data
-        //  when used with zmq_msg. Initialising the VSM body for
+    //  when used with zmq_msg. Initialising the VSM body for
-        //  non-VSM messages won't be good for performance.
+    //  non-VSM messages won't be good for performance.
 
 #ifdef ZMQ_HAVE_OPENVMS
 #pragma message save

src/zmq.cpp

@@ -55,6 +55,9 @@
 
 #if !defined ZMQ_HAVE_WINDOWS
 #include <unistd.h>
+#ifdef ZMQ_HAVE_VXWORKS
+#include <strings.h>
+#endif
 #endif
 
 // XSI vector I/O
@@ -682,7 +685,7 @@ const char *zmq_msg_gets (const zmq_msg_t *msg_, const char *property_)
     }
 }
 
-    // Polling.
+// Polling.
 
 #if defined ZMQ_HAVE_POLLER
 inline int zmq_poller_poll (zmq_pollitem_t *items_, int nitems_, long timeout_)
@@ -967,6 +970,11 @@ int zmq_poll (zmq_pollitem_t *items_, int nitems_, long timeout_)
 #if defined ZMQ_HAVE_WINDOWS
         Sleep (timeout_ > 0 ? timeout_ : INFINITE);
         return 0;
+#elif defined ZMQ_HAVE_VXWORKS
+        struct timespec ns_;
+        ns_.tv_sec = timeout_ / 1000;
+        ns_.tv_nsec = timeout_ % 1000 * 1000000;
+        return nanosleep (&ns_, 0);
 #else
         return usleep (timeout_ * 1000);
 #endif