diff options
Diffstat (limited to 'src/input/Init.cxx')
-rw-r--r-- | src/input/Init.cxx | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/src/input/Init.cxx b/src/input/Init.cxx new file mode 100644 index 000000000..14a7feef3 --- /dev/null +++ b/src/input/Init.cxx @@ -0,0 +1,102 @@ +/* + * 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 "Init.hxx" +#include "Registry.hxx" +#include "InputPlugin.hxx" +#include "util/Error.hxx" +#include "util/Domain.hxx" +#include "config/ConfigGlobal.hxx" +#include "config/ConfigOption.hxx" +#include "config/ConfigData.hxx" + +#include <assert.h> +#include <string.h> + +extern constexpr Domain input_domain("input"); + +/** + * Find the "input" configuration block for the specified plugin. + * + * @param plugin_name the name of the input plugin + * @return the configuration block, or nullptr if none was configured + */ +static const struct config_param * +input_plugin_config(const char *plugin_name, Error &error) +{ + const struct config_param *param = nullptr; + + while ((param = config_get_next_param(CONF_INPUT, param)) != nullptr) { + const char *name = param->GetBlockValue("plugin"); + if (name == nullptr) { + error.Format(input_domain, + "input configuration without 'plugin' name in line %d", + param->line); + return nullptr; + } + + if (strcmp(name, plugin_name) == 0) + return param; + } + + return nullptr; +} + +bool +input_stream_global_init(Error &error) +{ + const config_param 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 struct config_param *param = + input_plugin_config(plugin->name, error); + if (param == nullptr) { + if (error.IsDefined()) + return false; + + param = ∅ + } else if (!param->GetBlockValue("enabled", true)) + /* the plugin is disabled in mpd.conf */ + continue; + + if (plugin->init == nullptr || plugin->init(*param, error)) + input_plugins_enabled[i] = true; + else { + error.FormatPrefix("Failed to initialize input plugin '%s': ", + plugin->name); + return false; + } + } + + return true; +} + +void input_stream_global_finish(void) +{ + input_plugins_for_each_enabled(plugin) + if (plugin->finish != nullptr) + plugin->finish(); +} |