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/*
* Copyright 2003-2017 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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 2 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "PartitionCommands.hxx"
#include "Request.hxx"
#include "Instance.hxx"
#include "Partition.hxx"
#include "IdleFlags.hxx"
#include "client/Client.hxx"
#include "client/Response.hxx"
#include "util/CharUtil.hxx"
CommandResult
handle_partition(Client &client, Request request, Response &response)
{
const char *name = request.front();
auto &instance = client.GetInstance();
auto *partition = instance.FindPartition(name);
if (partition == nullptr) {
response.Error(ACK_ERROR_NO_EXIST, "partition does not exist");
return CommandResult::ERROR;
}
client.SetPartition(*partition);
return CommandResult::OK;
}
CommandResult
handle_listpartitions(Client &client, Request, Response &r)
{
for (const auto &partition : client.GetInstance().partitions) {
r.Format("partition: %s\n", partition.name.c_str());
}
return CommandResult::OK;
}
static constexpr bool
IsValidPartitionChar(char ch)
{
return IsAlphaNumericASCII(ch) || ch == '-' || ch == '_';
}
gcc_pure
static bool
IsValidPartitionName(const char *name) noexcept
{
do {
if (!IsValidPartitionChar(*name))
return false;
} while (*++name != 0);
return true;
}
gcc_pure
static bool
HasPartitionNamed(Instance &instance, const char *name) noexcept
{
return instance.FindPartition(name) != nullptr;
}
CommandResult
handle_newpartition(Client &client, Request request, Response &response)
{
const char *name = request.front();
if (!IsValidPartitionName(name)) {
response.Error(ACK_ERROR_ARG, "bad name");
return CommandResult::ERROR;
}
auto &instance = client.GetInstance();
if (HasPartitionNamed(instance, name)) {
response.Error(ACK_ERROR_EXIST, "name already exists");
return CommandResult::ERROR;
}
if (instance.partitions.size() >= 16) {
/* arbitrary limit for now */
response.Error(ACK_ERROR_UNKNOWN, "too many partitions");
return CommandResult::ERROR;
}
instance.partitions.emplace_back(instance, name,
// TODO: use real configuration
16384,
1024,
AudioFormat::Undefined(),
ReplayGainConfig());
auto &partition = instance.partitions.back();
partition.outputs.AddNullOutput(instance.io_thread.GetEventLoop(),
ReplayGainConfig(),
partition.pc);
partition.UpdateEffectiveReplayGainMode();
instance.EmitIdle(IDLE_PARTITION);
return CommandResult::OK;
}
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