Parser test should report AST creation errors
[babeltrace.git] / types / types.c
CommitLineData
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
4c8bfb7e 21#include <babeltrace/format.h>
6dc2ca62 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 */
4c8bfb7e 30GHashTable *type_classes;
d1708134 31
4c8bfb7e 32struct type_class *lookup_type(GQuark qname)
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33{
34 return g_hash_table_lookup(type_classes,
4c8bfb7e 35 (gconstpointer) (unsigned long) qname);
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36}
37
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38static void free_type(struct type_class *type_class)
39{
40 type_class->free(type_class);
41}
42
4c8bfb7e 43int register_type(struct type_class *type_class)
d1708134 44{
be85c1c7 45 if (lookup_type(type_class->name))
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46 return -EEXIST;
47
48 g_hash_table_insert(type_classes,
4c8bfb7e 49 (gpointer) (unsigned long) type_class->name,
698f0fe4 50 type_class);
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51 return 0;
52}
53
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54void type_ref(struct type_class *type_class)
55{
56 type_class->ref++;
57}
58
59void type_unref(struct type_class *type_class)
60{
61 if (!--type_class->ref)
62 free_type(type_class);
63}
64
65int init_types(void)
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66{
67 type_classes = g_hash_table_new_full(g_direct_hash, g_direct_equal,
4c8bfb7e 68 NULL, (GDestroyNotify) free_type);
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69 if (!type_classes)
70 return -ENOMEM;
71 return 0;
72}
73
4c8bfb7e 74int finalize_types(void)
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75{
76 g_hash_table_destroy(type_classes);
be85c1c7 77 return 0;
d1708134 78}
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