Drop libxszmq, keep only libzmq compatibility library (--enable-libzmq)

This simplifies the options for new users; either use libxs APIs or build
with --enable-libzmq and get libzmq 2.1 emulation.

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

1 files changed, 65 insertions, 0 deletions

diff --git a/include/zmq_utils.h b/include/zmq_utils.h
new file mode 100644
index 0000000..b25bf91
--- /dev/null
+++ b/include/zmq_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