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6dc2ca62 MD |
1 | /* |
2 | * Common Trace Format | |
3 | * | |
4 | * Enumeration mapping strings (quarks) from/to integers. | |
5 | * | |
de0ba614 | 6 | * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
6dc2ca62 | 7 | * |
de0ba614 MD |
8 | * This library is free software; you can redistribute it and/or |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2.1 of the License, or (at your option) any later version. | |
12 | * | |
13 | * This library is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * Lesser General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU Lesser General Public | |
19 | * License along with this library; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
6dc2ca62 MD |
21 | */ |
22 | ||
23 | #include <ctf/ctf-types.h> | |
24 | #include <stdint.h> | |
25 | #include <glib.h> | |
26 | ||
27 | struct enum_table { | |
28 | GHashTable *value_to_quark; /* Tuples (value, GQuark) */ | |
29 | GHashTable *quark_to_value; /* Tuples (GQuark, value) */ | |
30 | }; | |
31 | ||
32 | #if (__WORDSIZE == 32) | |
33 | GQuark enum_uint_to_quark(const struct enum_table *table, uint64_t v) | |
34 | { | |
35 | gconstpointer q = g_hash_table_lookup(table->value_to_quark, &v); | |
36 | return (GQuark) (unsigned long) q; | |
37 | } | |
38 | ||
39 | GQuark enum_int_to_quark(const struct enum_table *table, uint64_t v) | |
40 | { | |
41 | gconstpointer q = g_hash_table_lookup(table->value_to_quark, &v); | |
42 | return (GQuark) (unsigned long) q; | |
43 | } | |
44 | ||
45 | uint64_t enum_quark_to_uint(size_t len, int byte_order, GQuark q) | |
46 | { | |
47 | gconstpointer v = g_hash_table_lookup(table->quark_to_value, | |
48 | (gconstpointer) q); | |
49 | return *(const uint64_t *) v; | |
50 | } | |
51 | ||
52 | int64_t enum_quark_to_int(size_t len, int byte_order, GQuark q) | |
53 | { | |
54 | gconstpointer v = g_hash_table_lookup(table->quark_to_value, | |
55 | (gconstpointer) q); | |
56 | return *(const int64_t *) v; | |
57 | } | |
58 | ||
59 | guint enum_val_hash(gconstpointer key) | |
60 | { | |
61 | int64_t ukey = *(const int64_t *)key; | |
62 | ||
63 | return (guint)ukey ^ (guint)(ukey >> 32); | |
64 | } | |
65 | ||
66 | gboolean enum_val_equal(gconstpointer a, gconstpointer b) | |
67 | { | |
68 | int64_t ua = *(const int64_t *)a; | |
69 | int64_t ub = *(const int64_t *)b; | |
70 | ||
71 | return ua == ub; | |
72 | } | |
73 | ||
74 | void enum_val_free(void *ptr) | |
75 | { | |
76 | g_free(ptr); | |
77 | } | |
78 | ||
79 | void enum_signed_insert(struct enum_table *table, int64_t v, GQuark q) | |
80 | { | |
81 | int64_t *valuep = g_new(int64_t, 1); | |
82 | ||
83 | g_hash_table_insert(table->value_to_quark, valuep, | |
84 | (gpointer) (unsigned long) q); | |
85 | g_hash_table_insert(table->quark_to_value, (gpointer) (unsigned long) q, | |
86 | valuep); | |
87 | } | |
88 | ||
89 | void enum_unsigned_insert(struct enum_table *table, uint64_t v, GQuark q) | |
90 | { | |
91 | uint64_t *valuep = g_new(uint64_t, 1); | |
92 | ||
93 | g_hash_table_insert(table->value_to_quark, valuep, | |
94 | (gpointer) (unsigned long) q); | |
95 | g_hash_table_insert(table->quark_to_value, (gpointer) (unsigned long) q, | |
96 | valuep); | |
97 | } | |
98 | #else /* __WORDSIZE != 32 */ | |
99 | GQuark enum_uint_to_quark(const struct enum_table *table, uint64_t v) | |
100 | { | |
101 | gconstpointer q = g_hash_table_lookup(table->value_to_quark, | |
102 | (gconstpointer) v); | |
103 | return (GQuark) (unsigned long) q; | |
104 | } | |
105 | ||
106 | GQuark enum_int_to_quark(const struct enum_table *table, uint64_t v) | |
107 | { | |
108 | gconstpointer q = g_hash_table_lookup(table->value_to_quark, | |
109 | (gconstpointer) v); | |
110 | return (GQuark) (unsigned long) q; | |
111 | } | |
112 | ||
113 | uint64_t enum_quark_to_uint(size_t len, int byte_order, GQuark q) | |
114 | { | |
115 | gconstpointer v = g_hash_table_lookup(table->quark_to_value, | |
116 | (gconstpointer) (unsigned long) q); | |
117 | return *(const uint64_t *) v; | |
118 | } | |
119 | ||
120 | int64_t enum_quark_to_int(size_t len, int byte_order, GQuark q) | |
121 | { | |
122 | gconstpointer v = g_hash_table_lookup(table->quark_to_value, | |
123 | (gconstpointer) (unsigned long) q); | |
124 | return *(const int64_t *) v; | |
125 | } | |
126 | ||
127 | guint enum_val_hash(gconstpointer key) | |
128 | { | |
129 | return g_direct_hash(key); | |
130 | } | |
131 | ||
132 | gboolean enum_val_equal(gconstpointer a, gconstpointer b) | |
133 | { | |
134 | return g_direct_equal(a, b); | |
135 | } | |
136 | ||
137 | void enum_val_free(void *ptr) | |
138 | { | |
139 | } | |
140 | ||
141 | void enum_signed_insert(struct enum_table *table, int64_t v, GQuark q) | |
142 | { | |
143 | g_hash_table_insert(table->value_to_quark, (gpointer) v, | |
144 | (gpointer) (unsigned long) q); | |
145 | g_hash_table_insert(table->quark_to_value, (gpointer) (unsigned long) q, | |
146 | valuep); | |
147 | } | |
148 | ||
149 | void enum_unsigned_insert(struct enum_table *table, uint64_t v, GQuark q) | |
150 | { | |
151 | g_hash_table_insert(table->value_to_quark, (gpointer) v, | |
152 | (gpointer) (unsigned long) q); | |
153 | g_hash_table_insert(table->quark_to_value, (gpointer) (unsigned long) q, | |
154 | valuep); | |
155 | } | |
156 | #endif /* __WORDSIZE != 32 */ | |
157 | ||
158 | struct enum_table *enum_new(void) | |
159 | { | |
160 | struct enum_table *table; | |
161 | ||
162 | table = g_new(struct enum_table, 1); | |
d1708134 MD |
163 | table->value_to_quark = g_hash_table(enum_val_hash, enum_val_equal); |
164 | table->quark_to_value = g_hash_table_new_full(g_direct_hash, | |
165 | g_direct_equal, | |
166 | NULL, enum_val_free); | |
6dc2ca62 MD |
167 | } |
168 | ||
169 | void enum_destroy(struct enum_table *table) | |
170 | { | |
171 | g_hash_table_destroy(table->value_to_quark); | |
172 | g_hash_table_destroy(table->quark_to_value); | |
173 | g_free(table); | |
174 | } |