uhd: added warning printer utility function

3 files changed, 43 insertions, 6 deletions

diff --git a/host/lib/transport/udp_zero_copy_asio.cpp b/host/lib/transport/udp_zero_copy_asio.cpp
index bbbabf6d0..ee989ee2b 100644
--- a/host/lib/transport/udp_zero_copy_asio.cpp
+++ b/host/lib/transport/udp_zero_copy_asio.cpp
@@ -18,6 +18,7 @@
 #include <uhd/transport/udp_zero_copy.hpp>
 #include <uhd/transport/udp_simple.hpp> //mtu
 #include <uhd/utils/assert.hpp>
+#include <uhd/utils/warning.hpp>
 #include <boost/cstdint.hpp>
 #include <boost/asio.hpp>
 #include <boost/format.hpp>
@@ -161,12 +162,11 @@ template<typename Opt> static void resize_buff_helper(
         else std::cout << boost::format(
             "Current %s sock buff size: %d bytes"
         ) % name % actual_size << std::endl;
-        if (actual_size < target_size) std::cerr << boost::format(
-            "Warning:\n"
-            "    The %s buffer is smaller than the requested size.\n"
-            "    The minimum recommended buffer size is %d bytes.\n"
-            "    See the USRP2 application notes on buffer resizing.\n"
-        ) % name % min_sock_buff_size << std::endl;
+        if (actual_size < target_size) uhd::print_warning(str(boost::format(
+            "The %s buffer is smaller than the requested size.\n"
+            "The minimum recommended buffer size is %d bytes.\n"
+            "See the USRP2 application notes on buffer resizing.\n"
+        ) % name % min_sock_buff_size));
     }
 
     //only enable on platforms that are happy with the large buffer resize
diff --git a/host/lib/utils/CMakeLists.txt b/host/lib/utils/CMakeLists.txt
index 450112462..07e3b71b3 100644
--- a/host/lib/utils/CMakeLists.txt
+++ b/host/lib/utils/CMakeLists.txt
@@ -23,4 +23,5 @@ LIBUHD_APPEND_SOURCES(
     ${CMAKE_SOURCE_DIR}/lib/utils/load_modules.cpp
     ${CMAKE_SOURCE_DIR}/lib/utils/props.cpp
     ${CMAKE_SOURCE_DIR}/lib/utils/thread_priority.cpp
+    ${CMAKE_SOURCE_DIR}/lib/utils/warning.cpp
 )
diff --git a/host/lib/utils/warning.cpp b/host/lib/utils/warning.cpp
new file mode 100644
index 000000000..ae4d4c7aa
--- /dev/null
+++ b/host/lib/utils/warning.cpp
@@ -0,0 +1,36 @@
+//
+// Copyright 2010 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+#include <uhd/utils/warning.hpp>
+#include <boost/algorithm/string.hpp>
+#include <boost/foreach.hpp>
+#include <iostream>
+#include <vector>
+
+using namespace uhd;
+
+void uhd::print_warning(const std::string &msg){
+    //extract the message lines
+    std::vector<std::string> lines;
+    boost::split(lines, msg, boost::is_any_of("\n"));
+
+    //print the warning message
+    std::cerr << std::endl << "Warning:" << std::endl;
+    BOOST_FOREACH(const std::string &line, lines){
+        std::cerr << "    " << line << std::endl;
+    }
+}