116 lines
3.0 KiB
C++
116 lines
3.0 KiB
C++
/*
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* Copyright 2003-2019 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 "PartitionCommands.hxx"
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#include "Request.hxx"
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#include "Instance.hxx"
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#include "Partition.hxx"
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#include "IdleFlags.hxx"
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#include "client/Client.hxx"
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#include "client/Response.hxx"
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#include "util/CharUtil.hxx"
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CommandResult
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handle_partition(Client &client, Request request, Response &response)
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{
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const char *name = request.front();
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auto &instance = client.GetInstance();
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auto *partition = instance.FindPartition(name);
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if (partition == nullptr) {
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response.Error(ACK_ERROR_NO_EXIST, "partition does not exist");
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return CommandResult::ERROR;
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}
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client.SetPartition(*partition);
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return CommandResult::OK;
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}
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CommandResult
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handle_listpartitions(Client &client, Request, Response &r)
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{
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for (const auto &partition : client.GetInstance().partitions) {
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r.Format("partition: %s\n", partition.name.c_str());
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}
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return CommandResult::OK;
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}
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static constexpr bool
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IsValidPartitionChar(char ch)
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{
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return IsAlphaNumericASCII(ch) || ch == '-' || ch == '_';
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}
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gcc_pure
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static bool
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IsValidPartitionName(const char *name) noexcept
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{
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do {
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if (!IsValidPartitionChar(*name))
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return false;
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} while (*++name != 0);
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return true;
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}
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gcc_pure
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static bool
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HasPartitionNamed(Instance &instance, const char *name) noexcept
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{
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return instance.FindPartition(name) != nullptr;
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}
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CommandResult
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handle_newpartition(Client &client, Request request, Response &response)
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{
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const char *name = request.front();
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if (!IsValidPartitionName(name)) {
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response.Error(ACK_ERROR_ARG, "bad name");
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return CommandResult::ERROR;
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}
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auto &instance = client.GetInstance();
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if (HasPartitionNamed(instance, name)) {
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response.Error(ACK_ERROR_EXIST, "name already exists");
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return CommandResult::ERROR;
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}
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if (instance.partitions.size() >= 16) {
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/* arbitrary limit for now */
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response.Error(ACK_ERROR_UNKNOWN, "too many partitions");
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return CommandResult::ERROR;
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}
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instance.partitions.emplace_back(instance, name,
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// TODO: use real configuration
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16384,
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1024,
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AudioFormat::Undefined(),
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ReplayGainConfig());
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auto &partition = instance.partitions.back();
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partition.outputs.AddNullOutput(instance.io_thread.GetEventLoop(),
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ReplayGainConfig(),
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partition.pc);
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partition.UpdateEffectiveReplayGainMode();
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instance.EmitIdle(IDLE_PARTITION);
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return CommandResult::OK;
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}
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