aboutsummaryrefslogtreecommitdiffstats
path: root/src/input/Init.cxx
blob: 4ed44f100998d8104eb1007c17cee92877e2fa06 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
/*
 * Copyright (C) 2003-2015 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 "Init.hxx"
#include "Registry.hxx"
#include "InputPlugin.hxx"
#include "util/Error.hxx"
#include "config/ConfigGlobal.hxx"
#include "config/ConfigOption.hxx"
#include "config/Block.hxx"
#include "Log.hxx"

#include <assert.h>
#include <string.h>

bool
input_stream_global_init(Error &error)
{
	const ConfigBlock empty;

	for (unsigned i = 0; input_plugins[i] != nullptr; ++i) {
		const InputPlugin *plugin = input_plugins[i];

		assert(plugin->name != nullptr);
		assert(*plugin->name != 0);
		assert(plugin->open != nullptr);

		const auto *block =
			config_find_block(ConfigBlockOption::INPUT, "plugin",
					  plugin->name);
		if (block == nullptr) {
			block = &empty;
		} else if (!block->GetBlockValue("enabled", true))
			/* the plugin is disabled in mpd.conf */
			continue;

		InputPlugin::InitResult result = plugin->init != nullptr
			? plugin->init(*block, error)
			: InputPlugin::InitResult::SUCCESS;

		switch (result) {
		case InputPlugin::InitResult::SUCCESS:
			input_plugins_enabled[i] = true;
			break;

		case InputPlugin::InitResult::ERROR:
			error.FormatPrefix("Failed to initialize input plugin '%s': ",
					   plugin->name);
			return false;

		case InputPlugin::InitResult::UNAVAILABLE:
			if (error.IsDefined()) {
				FormatError(error,
					    "Input plugin '%s' is unavailable",
					    plugin->name);
				error.Clear();
			}

			break;
		}
	}

	return true;
}

void input_stream_global_finish(void)
{
	input_plugins_for_each_enabled(plugin)
		if (plugin->finish != nullptr)
			plugin->finish();
}