1 files changed, 76 insertions, 0 deletions
diff --git a/host/lib/error_c.cpp b/host/lib/error_c.cpp
new file mode 100644
index 000000000..3ce63a81d
--- /dev/null
+++ b/host/lib/error_c.cpp
@@ -0,0 +1,76 @@
+//
+// Copyright 2015 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/error.h>
+#include <uhd/exception.hpp>
+#include <uhd/utils/static.hpp>
+
+#include <boost/thread/mutex.hpp>
+
+#include <cstring>
+
+#define MAP_TO_ERROR(exception_type, error_type) \
+    if (dynamic_cast<const uhd::exception_type*>(e)) return error_type;
+
+uhd_error error_from_uhd_exception(const uhd::exception* e){
+    MAP_TO_ERROR(index_error,           UHD_ERROR_INDEX)
+    MAP_TO_ERROR(key_error,             UHD_ERROR_KEY)
+    MAP_TO_ERROR(not_implemented_error, UHD_ERROR_NOT_IMPLEMENTED)
+    MAP_TO_ERROR(usb_error,             UHD_ERROR_USB)
+    MAP_TO_ERROR(io_error,              UHD_ERROR_IO)
+    MAP_TO_ERROR(os_error,              UHD_ERROR_OS)
+    MAP_TO_ERROR(assertion_error,       UHD_ERROR_ASSERTION)
+    MAP_TO_ERROR(lookup_error,          UHD_ERROR_LOOKUP)
+    MAP_TO_ERROR(type_error,            UHD_ERROR_TYPE)
+    MAP_TO_ERROR(value_error,           UHD_ERROR_VALUE)
+    MAP_TO_ERROR(runtime_error,         UHD_ERROR_RUNTIME)
+    MAP_TO_ERROR(environment_error,     UHD_ERROR_ENVIRONMENT)
+    MAP_TO_ERROR(system_error,          UHD_ERROR_SYSTEM)
+
+    return UHD_ERROR_EXCEPT;
+}
+
+// Store the error string in a single place in library
+UHD_SINGLETON_FCN(std::string, _c_global_error_string)
+
+static boost::mutex _error_c_mutex;
+
+const std::string& get_c_global_error_string(){
+    boost::mutex::scoped_lock lock(_error_c_mutex);
+    return _c_global_error_string();
+}
+
+void set_c_global_error_string(
+    const std::string &msg
+){
+    boost::mutex::scoped_lock lock(_error_c_mutex);
+    _c_global_error_string() = msg;
+}
+
+uhd_error uhd_get_last_error(
+    char* error_out,
+    size_t strbuffer_len
+){
+    try{
+        memset(error_out, '\0', strbuffer_len);
+        strncpy(error_out, _c_global_error_string().c_str(), strbuffer_len);
+    }
+    catch(...){
+        return UHD_ERROR_UNKNOWN;
+    }
+    return UHD_ERROR_NONE;
+}