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https://github.com/saymrwulf/uhd.git
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6667aa071e
The function was directly accessing the error message cache, bypassing locks, and thus could be faulty if being called the same time as another UHD component would update the error string.
80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
//
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// Copyright 2015 Ettus Research LLC
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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#include <uhd/error.h>
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#include <uhd/exception.hpp>
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#include <uhd/utils/static.hpp>
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#include <boost/thread/mutex.hpp>
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#include <cstring>
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#define MAP_TO_ERROR(exception_type, error_type) \
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if (dynamic_cast<const uhd::exception_type*>(e)) return error_type;
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uhd_error error_from_uhd_exception(const uhd::exception* e){
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MAP_TO_ERROR(index_error, UHD_ERROR_INDEX)
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MAP_TO_ERROR(key_error, UHD_ERROR_KEY)
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MAP_TO_ERROR(not_implemented_error, UHD_ERROR_NOT_IMPLEMENTED)
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MAP_TO_ERROR(usb_error, UHD_ERROR_USB)
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MAP_TO_ERROR(io_error, UHD_ERROR_IO)
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MAP_TO_ERROR(os_error, UHD_ERROR_OS)
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MAP_TO_ERROR(assertion_error, UHD_ERROR_ASSERTION)
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MAP_TO_ERROR(lookup_error, UHD_ERROR_LOOKUP)
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MAP_TO_ERROR(type_error, UHD_ERROR_TYPE)
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MAP_TO_ERROR(value_error, UHD_ERROR_VALUE)
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MAP_TO_ERROR(runtime_error, UHD_ERROR_RUNTIME)
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MAP_TO_ERROR(environment_error, UHD_ERROR_ENVIRONMENT)
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MAP_TO_ERROR(system_error, UHD_ERROR_SYSTEM)
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return UHD_ERROR_EXCEPT;
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}
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// Store the error string in a single place in library
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// Note: Don't call _c_global_error_string() directly, it needs to be locked
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// for thread-safety. Use set_c_global_error_string() and
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// get_c_global_error_string() instead.
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UHD_SINGLETON_FCN(std::string, _c_global_error_string)
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static boost::mutex _error_c_mutex;
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std::string get_c_global_error_string(){
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boost::mutex::scoped_lock lock(_error_c_mutex);
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return _c_global_error_string();
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}
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void set_c_global_error_string(
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const std::string &msg
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){
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boost::mutex::scoped_lock lock(_error_c_mutex);
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_c_global_error_string() = msg;
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}
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uhd_error uhd_get_last_error(
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char* error_out,
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size_t strbuffer_len
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){
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try{
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auto error_str = get_c_global_error_string();
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memset(error_out, '\0', strbuffer_len);
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strncpy(error_out, error_str.c_str(), strbuffer_len);
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}
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catch(...){
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return UHD_ERROR_UNKNOWN;
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}
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return UHD_ERROR_NONE;
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}
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