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53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/* Spa Volume plugin
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* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <spa/support/plugin.h>
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#define MAX_FACTORIES 16
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static const struct spa_handle_factory *factories[MAX_FACTORIES];
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static int n_factories;
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int spa_handle_factory_register(const struct spa_handle_factory *factory)
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{
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if (n_factories >= MAX_FACTORIES) {
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fprintf(stderr, "too many factories\n");
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return -ENOMEM;
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}
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factories[n_factories++] = factory;
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return 0;
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}
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int
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spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t *index)
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{
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spa_return_val_if_fail(factory != NULL, -EINVAL);
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spa_return_val_if_fail(index != NULL, -EINVAL);
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if (*index >= n_factories)
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return 0;
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*factory = factories[(*index)++];
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return 1;
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}
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