mpd/src/input/Open.cxx
Max Kellermann 7e12aea1d8 input/Open: use OpenLocalInputStream()
Make the "open" method of plugins "file" and "archive" dummy methods
that always fail.  Instead, let InputStream::Open() hard-code access
to these two plugins by using OpenLocalInputStream().  This allows
simplifyin the algorithm for falling back to probing archive plugins.
2014-10-02 21:50:14 +02:00

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2.0 KiB
C++

/*
* Copyright (C) 2003-2014 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 "InputStream.hxx"
#include "Registry.hxx"
#include "InputPlugin.hxx"
#include "LocalOpen.hxx"
#include "plugins/RewindInputPlugin.hxx"
#include "fs/Traits.hxx"
#include "fs/Path.hxx"
#include "util/Error.hxx"
#include "util/Domain.hxx"
static constexpr Domain input_domain("input");
InputStream *
InputStream::Open(const char *url,
Mutex &mutex, Cond &cond,
Error &error)
{
if (PathTraitsFS::IsAbsolute(url))
/* TODO: the parameter is UTF-8, not filesystem charset */
return OpenLocalInputStream(Path::FromFS(url),
mutex, cond, error);
input_plugins_for_each_enabled(plugin) {
InputStream *is;
is = plugin->open(url, mutex, cond, error);
if (is != nullptr) {
is = input_rewind_open(is);
return is;
} else if (error.IsDefined())
return nullptr;
}
error.Set(input_domain, "Unrecognized URI");
return nullptr;
}
InputStream *
InputStream::OpenReady(const char *uri,
Mutex &mutex, Cond &cond,
Error &error)
{
InputStream *is = Open(uri, mutex, cond, error);
if (is == nullptr)
return nullptr;
mutex.lock();
is->WaitReady();
bool success = is->Check(error);
mutex.unlock();
if (!success) {
delete is;
is = nullptr;
}
return is;
}