71f0ed8b74
This eliminates some overhead, because the compiler doesn't need to consider these functions throwing.
152 lines
3.7 KiB
C++
152 lines
3.7 KiB
C++
/*
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* Copyright 2003-2017 The Music Player Daemon Project
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* http://www.musicpd.org
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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 2 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "CommandError.hxx"
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#include "PlaylistError.hxx"
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#include "db/DatabaseError.hxx"
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#include "client/Response.hxx"
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#include "Log.hxx"
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#include "util/Exception.hxx"
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#include <system_error>
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#include <assert.h>
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#define GLIBCXX_490 20140422
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#define GLIBCXX_491 20140716
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#define GLIBCXX_492 20141030
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#define GLIBCXX_492_Debian_9 20141220
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#define GLIBCXX_493 20150626
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#define GLIBCXX_494 20160803
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#define GLIBCXX_49X_NDK_r13b 20150123
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/* the big mess attempts to detect whether we're compiling with
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libstdc++ 4.9.x; __GLIBCXX__ is a date tag and cannot be used to
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check the major version; and just checking the compiler version
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isn't enough, because somebody could use an old libstdc++ with
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clang - SIGH! */
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#if GCC_OLDER_THAN(5,0) || (defined(__GLIBCXX__) && \
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(__GLIBCXX__ == GLIBCXX_490 || __GLIBCXX__ == GLIBCXX_491 || \
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__GLIBCXX__ == GLIBCXX_492 || \
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__GLIBCXX__ == GLIBCXX_492_Debian_9 || \
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__GLIBCXX__ == GLIBCXX_493 || \
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__GLIBCXX__ == GLIBCXX_494 || \
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__GLIBCXX__ == GLIBCXX_49X_NDK_r13b))
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#define GLIBCXX_49X
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#endif
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gcc_const
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static enum ack
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ToAck(PlaylistResult result) noexcept
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{
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switch (result) {
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case PlaylistResult::SUCCESS:
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break;
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case PlaylistResult::DENIED:
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return ACK_ERROR_PERMISSION;
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case PlaylistResult::NO_SUCH_SONG:
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case PlaylistResult::NO_SUCH_LIST:
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return ACK_ERROR_NO_EXIST;
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case PlaylistResult::LIST_EXISTS:
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return ACK_ERROR_EXIST;
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case PlaylistResult::BAD_NAME:
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case PlaylistResult::BAD_RANGE:
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return ACK_ERROR_ARG;
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case PlaylistResult::NOT_PLAYING:
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return ACK_ERROR_PLAYER_SYNC;
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case PlaylistResult::TOO_LARGE:
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return ACK_ERROR_PLAYLIST_MAX;
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case PlaylistResult::DISABLED:
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break;
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}
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return ACK_ERROR_UNKNOWN;
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}
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#ifdef ENABLE_DATABASE
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gcc_const
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static enum ack
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ToAck(DatabaseErrorCode code) noexcept
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{
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switch (code) {
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case DatabaseErrorCode::DISABLED:
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case DatabaseErrorCode::NOT_FOUND:
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return ACK_ERROR_NO_EXIST;
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case DatabaseErrorCode::CONFLICT:
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return ACK_ERROR_ARG;
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}
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return ACK_ERROR_UNKNOWN;
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}
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#endif
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gcc_pure
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static enum ack
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ToAck(std::exception_ptr ep) noexcept
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{
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try {
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std::rethrow_exception(ep);
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} catch (const ProtocolError &pe) {
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return pe.GetCode();
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} catch (const PlaylistError &pe) {
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return ToAck(pe.GetCode());
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#ifdef ENABLE_DATABASE
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} catch (const DatabaseError &de) {
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return ToAck(de.GetCode());
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#endif
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} catch (const std::system_error &e) {
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return ACK_ERROR_SYSTEM;
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} catch (const std::invalid_argument &e) {
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return ACK_ERROR_ARG;
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#ifdef GLIBCXX_49X
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} catch (const std::exception &e) {
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#else
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} catch (...) {
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#endif
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try {
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#ifdef GLIBCXX_49X
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/* workaround for g++ 4.x: no overload for
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rethrow_exception(exception_ptr) */
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std::rethrow_if_nested(e);
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#else
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std::rethrow_if_nested(ep);
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#endif
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return ACK_ERROR_UNKNOWN;
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} catch (...) {
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return ToAck(std::current_exception());
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}
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}
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}
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void
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PrintError(Response &r, std::exception_ptr ep)
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{
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LogError(ep);
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r.Error(ToAck(ep), FullMessage(ep).c_str());
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}
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