Relicense BabelTrace library to MIT (BSD-style)
[babeltrace.git] / types / types.c
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6dc2ca62 1/*
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2 * types.c
3 *
d79865b9 4 * BabelTrace - Converter
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5 *
6 * Types registry.
7 *
ccd7e1c8 8 * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
de0ba614 9 *
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10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
de0ba614 16 *
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17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
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19 */
20
21#include <ctf/ctf-types.h>
22#include <glib.h>
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23#include <errno.h>
24
d1708134 25/*
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26 * Type hash table contains the registered types. Type registration is typically
27 * performed by a type plugin.
28 * TODO: support plugin unload (unregistration of types).
d1708134 29 */
698f0fe4 30GHashTable *types;
d1708134 31
698f0fe4 32struct type_class *ctf_lookup_type(GQuark qname)
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33{
34 return g_hash_table_lookup(type_classes,
35 (gconstpointer) (unsigned long) qname)
36}
37
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38static void free_type(struct type_class *type_class)
39{
40 type_class->free(type_class);
41}
42
698f0fe4 43int ctf_register_type(struct type_class *type_class)
d1708134 44{
698f0fe4 45 if (ctf_lookup_type_class(type_class->name))
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46 return -EEXIST;
47
48 g_hash_table_insert(type_classes,
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49 (gconstpointer) (unsigned long) type_class->name,
50 type_class);
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51 return 0;
52}
53
54int ctf_init_types(void)
55{
56 type_classes = g_hash_table_new_full(g_direct_hash, g_direct_equal,
90b676d7 57 NULL, free_type);
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58 if (!type_classes)
59 return -ENOMEM;
60 return 0;
61}
62
63int ctf_finalize_types(void)
64{
65 g_hash_table_destroy(type_classes);
66}
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