Added libxszmq compatibility library

Signed-off-by: Martin Lucina <martin@lucina.net>

2 files changed, 341 insertions, 0 deletions

diff --git a/include/xszmq.h b/include/xszmq.h
new file mode 100644
index 0000000..eabf3c8
--- /dev/null
+++ b/include/xszmq.h
@@ -0,0 +1,276 @@
+/*
+    Copyright (c) 2012 Martin Lucina
+    Copyright (c) 2007-2011 iMatix Corporation
+    Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
+
+    This file is part of Crossroads I/O.
+
+    Crossroads I/O is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    Crossroads I/O 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 __XSZMQ_H_INCLUDED__
+#define __XSZMQ_H_INCLUDED__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <errno.h>
+#include <stddef.h>
+#if defined _WIN32
+#include <winsock2.h>
+#endif
+
+/*  Handle DSO symbol visibility                                             */
+#if defined _WIN32
+#   if defined DLL_EXPORT
+#       define XSZMQ_EXPORT __declspec(dllexport)
+#   else
+#       define XSZMQ_EXPORT __declspec(dllimport)
+#   endif
+#else
+#   if defined __SUNPRO_C  || defined __SUNPRO_CC
+#       define XSZMQ_EXPORT __global
+#   elif (defined __GNUC__ && __GNUC__ >= 4) || defined __INTEL_COMPILER
+#       define XSZMQ_EXPORT __attribute__ ((visibility("default")))
+#   else
+#       define XSZMQ_EXPORT
+#   endif
+#endif
+
+/******************************************************************************/
+/*  0MQ versioning support.                                                   */
+/******************************************************************************/
+
+/*  Version macros for compile-time API version detection                     */
+#define ZMQ_VERSION_MAJOR 2
+#define ZMQ_VERSION_MINOR 1
+#define ZMQ_VERSION_PATCH 11
+
+#define ZMQ_MAKE_VERSION(major, minor, patch) \
+    ((major) * 10000 + (minor) * 100 + (patch))
+#define ZMQ_VERSION \
+    ZMQ_MAKE_VERSION(ZMQ_VERSION_MAJOR, ZMQ_VERSION_MINOR, ZMQ_VERSION_PATCH)
+
+/*  Run-time API version detection                                            */
+XSZMQ_EXPORT void zmq_version (int *major, int *minor, int *patch);
+
+/******************************************************************************/
+/*  0MQ errors.                                                               */
+/******************************************************************************/
+
+/*  These constants conflict with xs.h. Disable them if we are building the   */
+/*  libxszmq compatibility library itself.                                    */
+#ifndef XS_BUILDING_LIBXSZMQ
+
+/*  A number random enough not to collide with different errno ranges on      */
+/*  different OSes. The assumption is that error_t is at least 32-bit type.   */
+#define ZMQ_HAUSNUMERO 156384712
+
+/*  On Windows platform some of the standard POSIX errnos are not defined.    */
+#ifndef ENOTSUP
+#define ENOTSUP (ZMQ_HAUSNUMERO + 1)
+#endif
+#ifndef EPROTONOSUPPORT
+#define EPROTONOSUPPORT (ZMQ_HAUSNUMERO + 2)
+#endif
+#ifndef ENOBUFS
+#define ENOBUFS (ZMQ_HAUSNUMERO + 3)
+#endif
+#ifndef ENETDOWN
+#define ENETDOWN (ZMQ_HAUSNUMERO + 4)
+#endif
+#ifndef EADDRINUSE
+#define EADDRINUSE (ZMQ_HAUSNUMERO + 5)
+#endif
+#ifndef EADDRNOTAVAIL
+#define EADDRNOTAVAIL (ZMQ_HAUSNUMERO + 6)
+#endif
+#ifndef ECONNREFUSED
+#define ECONNREFUSED (ZMQ_HAUSNUMERO + 7)
+#endif
+#ifndef EINPROGRESS
+#define EINPROGRESS (ZMQ_HAUSNUMERO + 8)
+#endif
+#ifndef ENOTSOCK
+#define ENOTSOCK (ZMQ_HAUSNUMERO + 9)
+#endif
+
+/*  Native 0MQ error codes.                                                   */
+#define EFSM (ZMQ_HAUSNUMERO + 51)
+#define ENOCOMPATPROTO (ZMQ_HAUSNUMERO + 52)
+#define ETERM (ZMQ_HAUSNUMERO + 53)
+#define EMTHREAD (ZMQ_HAUSNUMERO + 54)
+
+#endif /*  XS_BUILDING_LIBXSZMQ                                               */
+
+/*  This function retrieves the errno as it is known to 0MQ library. The goal */
+/*  of this function is to make the code 100% portable, including where 0MQ   */
+/*  compiled with certain CRT library (on Windows) is linked to an            */
+/*  application that uses different CRT library.                              */
+XSZMQ_EXPORT int zmq_errno (void);
+
+/*  Resolves system errors and 0MQ errors to human-readable string.           */
+XSZMQ_EXPORT const char *zmq_strerror (int errnum);
+
+/******************************************************************************/
+/*  0MQ message definition.                                                   */
+/******************************************************************************/
+
+/*  Maximal size of "Very Small Message". VSMs are passed by value            */
+/*  to avoid excessive memory allocation/deallocation.                        */
+/*  If VMSs larger than 255 bytes are required, type of 'vsm_size'            */
+/*  field in zmq_msg_t structure should be modified accordingly.              */
+#define ZMQ_MAX_VSM_SIZE 30
+
+/*  Message types. These integers may be stored in 'content' member of the    */
+/*  message instead of regular pointer to the data.                           */
+#define ZMQ_DELIMITER 31
+#define ZMQ_VSM 32
+
+/*  Message flags. ZMQ_MSG_SHARED is strictly speaking not a message flag     */
+/*  (it has no equivalent in the wire format), however, making  it a flag     */
+/*  allows us to pack the stucture tigher and thus improve performance.       */
+#define ZMQ_MSG_MORE 1
+#define ZMQ_MSG_SHARED 128
+#define ZMQ_MSG_MASK 129 /* Merges all the flags */
+
+/*  A message. Note that 'content' is not a pointer to the raw data.          */
+/*  Rather it is pointer to zmq::msg_content_t structure                      */
+/*  (see src/msg_content.hpp for its definition).                             */
+typedef struct
+{
+    void *content;
+    unsigned char flags;
+    unsigned char vsm_size;
+    unsigned char vsm_data [ZMQ_MAX_VSM_SIZE];
+} zmq_msg_t;
+
+typedef void (zmq_free_fn) (void *data, void *hint);
+
+XSZMQ_EXPORT int zmq_msg_init (zmq_msg_t *msg);
+XSZMQ_EXPORT int zmq_msg_init_size (zmq_msg_t *msg, size_t size);
+XSZMQ_EXPORT int zmq_msg_init_data (zmq_msg_t *msg, void *data,
+    size_t size, zmq_free_fn *ffn, void *hint);
+XSZMQ_EXPORT int zmq_msg_close (zmq_msg_t *msg);
+XSZMQ_EXPORT int zmq_msg_move (zmq_msg_t *dest, zmq_msg_t *src);
+XSZMQ_EXPORT int zmq_msg_copy (zmq_msg_t *dest, zmq_msg_t *src);
+XSZMQ_EXPORT void *zmq_msg_data (zmq_msg_t *msg);
+XSZMQ_EXPORT size_t zmq_msg_size (zmq_msg_t *msg);
+
+/******************************************************************************/
+/*  0MQ infrastructure (a.k.a. context) initialisation & termination.         */
+/******************************************************************************/
+
+XSZMQ_EXPORT void *zmq_init (int io_threads);
+XSZMQ_EXPORT int zmq_term (void *context);
+
+/******************************************************************************/
+/*  0MQ socket definition.                                                    */
+/******************************************************************************/
+
+/*  Socket types.                                                             */ 
+#define ZMQ_PAIR 0
+#define ZMQ_PUB 1
+#define ZMQ_SUB 2
+#define ZMQ_REQ 3
+#define ZMQ_REP 4
+#define ZMQ_DEALER 5
+#define ZMQ_ROUTER 6
+#define ZMQ_PULL 7
+#define ZMQ_PUSH 8
+#define ZMQ_XPUB 9
+#define ZMQ_XSUB 10
+#define ZMQ_XREQ ZMQ_DEALER        /*  Old alias, remove in 3.x               */
+#define ZMQ_XREP ZMQ_ROUTER        /*  Old alias, remove in 3.x               */
+#define ZMQ_UPSTREAM ZMQ_PULL      /*  Old alias, remove in 3.x               */
+#define ZMQ_DOWNSTREAM ZMQ_PUSH    /*  Old alias, remove in 3.x               */
+
+/*  Socket options.                                                           */
+#define ZMQ_HWM 1
+#define ZMQ_SWAP 3
+#define ZMQ_AFFINITY 4
+#define ZMQ_IDENTITY 5
+#define ZMQ_SUBSCRIBE 6
+#define ZMQ_UNSUBSCRIBE 7
+#define ZMQ_RATE 8
+#define ZMQ_RECOVERY_IVL 9
+#define ZMQ_MCAST_LOOP 10
+#define ZMQ_SNDBUF 11
+#define ZMQ_RCVBUF 12
+#define ZMQ_RCVMORE 13
+#define ZMQ_FD 14
+#define ZMQ_EVENTS 15
+#define ZMQ_TYPE 16
+#define ZMQ_LINGER 17
+#define ZMQ_RECONNECT_IVL 18
+#define ZMQ_BACKLOG 19
+#define ZMQ_RECOVERY_IVL_MSEC 20   /*  opt. recovery time, reconcile in 3.x   */
+#define ZMQ_RECONNECT_IVL_MAX 21
+    
+/*  Send/recv options.                                                        */
+#define ZMQ_NOBLOCK 1
+#define ZMQ_SNDMORE 2
+
+XSZMQ_EXPORT void *zmq_socket (void *context, int type);
+XSZMQ_EXPORT int zmq_close (void *s);
+XSZMQ_EXPORT int zmq_setsockopt (void *s, int option, const void *optval,
+    size_t optvallen); 
+XSZMQ_EXPORT int zmq_getsockopt (void *s, int option, void *optval,
+    size_t *optvallen);
+XSZMQ_EXPORT int zmq_bind (void *s, const char *addr);
+XSZMQ_EXPORT int zmq_connect (void *s, const char *addr);
+XSZMQ_EXPORT int zmq_send (void *s, zmq_msg_t *msg, int flags);
+XSZMQ_EXPORT int zmq_recv (void *s, zmq_msg_t *msg, int flags);
+
+/******************************************************************************/
+/*  I/O multiplexing.                                                         */
+/******************************************************************************/
+
+#define ZMQ_POLLIN 1
+#define ZMQ_POLLOUT 2
+#define ZMQ_POLLERR 4
+
+typedef struct
+{
+    void *socket;
+#if defined _WIN32
+    SOCKET fd;
+#else
+    int fd;
+#endif
+    short events;
+    short revents;
+} zmq_pollitem_t;
+
+XSZMQ_EXPORT int zmq_poll (zmq_pollitem_t *items, int nitems, long timeout);
+
+/******************************************************************************/
+/*  Built-in devices                                                          */
+/******************************************************************************/
+
+#define ZMQ_STREAMER 1
+#define ZMQ_FORWARDER 2
+#define ZMQ_QUEUE 3
+
+XSZMQ_EXPORT int zmq_device (int device, void * insocket, void* outsocket);
+
+#undef XSZMQ_EXPORT
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/include/xszmq_utils.h b/include/xszmq_utils.h
new file mode 100644
index 0000000..b25bf91
--- /dev/null
+++ b/include/xszmq_utils.h
@@ -0,0 +1,65 @@
+/*
+    Copyright (c) 2012 Martin Lucina
+    Copyright (c) 2007-2011 iMatix Corporation
+    Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
+
+    This file is part of Crossroads I/O.
+
+    Crossroads I/O is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    Crossroads I/O 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 __XSZMQ_UTILS_H_INCLUDED__
+#define __XSZMQ_UTILS_H_INCLUDED__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*  Handle DSO symbol visibility                                             */
+#if defined _WIN32
+#   if defined DLL_EXPORT
+#       define XSZMQ_EXPORT __declspec(dllexport)
+#   else
+#       define XSZMQ_EXPORT __declspec(dllimport)
+#   endif
+#else
+#   if defined __SUNPRO_C  || defined __SUNPRO_CC
+#       define XSZMQ_EXPORT __global
+#   elif (defined __GNUC__ && __GNUC__ >= 4) || defined __INTEL_COMPILER
+#       define XSZMQ_EXPORT __attribute__ ((visibility("default")))
+#   else
+#       define XSZMQ_EXPORT
+#   endif
+#endif
+
+/*  Helper functions are used by perf tests so that they don't have to care   */
+/*  about minutiae of time-related functions on different OS platforms.       */
+
+/*  Starts the stopwatch. Returns the handle to the watch.                    */
+XSZMQ_EXPORT void *zmq_stopwatch_start (void);
+
+/*  Stops the stopwatch. Returns the number of microseconds elapsed since     */
+/*  the stopwatch was started.                                                */
+XSZMQ_EXPORT unsigned long zmq_stopwatch_stop (void *watch_);
+
+/*  Sleeps for specified number of seconds.                                   */
+XSZMQ_EXPORT void zmq_sleep (int seconds_);
+
+#undef XSZMQ_EXPORT
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif