+++ /dev/null
-/*
- * enum.c
- *
- * BabelTrace - Enumeration Type
- *
- * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- */
-
-#include <babeltrace/compiler.h>
-#include <babeltrace/types.h>
-#include <stdint.h>
-#include <glib.h>
-
-struct enum_table {
- GHashTable *value_to_quark; /* Tuples (value, GQuark) */
- GHashTable *quark_to_value; /* Tuples (GQuark, value) */
-};
-
-#if (__WORDSIZE == 32)
-GQuark enum_uint_to_quark(const struct type_class_enum *enum_class, uint64_t v)
-{
- gconstpointer q = g_hash_table_lookup(enum_class->table.value_to_quark,
- &v);
- return (GQuark) (unsigned long) q;
-}
-
-GQuark enum_int_to_quark(const struct type_class_enum *enum_class, uint64_t v)
-{
- gconstpointer q = g_hash_table_lookup(enum_class->table.value_to_quark,
- &v);
- return (GQuark) (unsigned long) q;
-}
-
-uint64_t enum_quark_to_uint(const struct type_class_enum *enum_class,
- size_t len, int byte_order, GQuark q)
-{
- gconstpointer v = g_hash_table_lookup(enum_class->table.quark_to_value,
- (gconstpointer) q);
- return *(const uint64_t *) v;
-}
-
-int64_t enum_quark_to_int(const struct type_class_enum *enum_class,
- size_t len, int byte_order, GQuark q)
-{
- gconstpointer v = g_hash_table_lookup(enum_class->table.quark_to_value,
- (gconstpointer) q);
- return *(const int64_t *) v;
-}
-
-guint enum_val_hash(gconstpointer key)
-{
- int64_t ukey = *(const int64_t *)key;
-
- return (guint)ukey ^ (guint)(ukey >> 32);
-}
-
-gboolean enum_val_equal(gconstpointer a, gconstpointer b)
-{
- int64_t ua = *(const int64_t *)a;
- int64_t ub = *(const int64_t *)b;
-
- return ua == ub;
-}
-
-void enum_val_free(void *ptr)
-{
- g_free(ptr);
-}
-
-void enum_signed_insert(struct type_class_enum *enum_class, int64_t v, GQuark q)
-{
- int64_t *valuep = g_new(int64_t, 1);
-
- g_hash_table_insert(enum_class->table>value_to_quark, valuep,
- (gpointer) (unsigned long) q);
- g_hash_table_insert(enum_class->table.quark_to_value,
- (gpointer) (unsigned long) q,
- valuep);
-}
-
-void enum_unsigned_insert(struct type_class_enum *enum_class, uint64_t v, GQuark q)
-{
- uint64_t *valuep = g_new(uint64_t, 1);
-
- g_hash_table_insert(enum_class->table.value_to_quark, valuep,
- (gpointer) (unsigned long) q);
- g_hash_table_insert(enum_class->table.quark_to_value,
- (gpointer) (unsigned long) q,
- valuep);
-}
-#else /* __WORDSIZE != 32 */
-GQuark enum_uint_to_quark(const struct type_class_enum *enum_class, uint64_t v)
-{
- gconstpointer q = g_hash_table_lookup(enum_class->table.value_to_quark,
- (gconstpointer) v);
- return (GQuark) (unsigned long) q;
-}
-
-GQuark enum_int_to_quark(const struct type_class_enum *enum_class, uint64_t v)
-{
- gconstpointer q = g_hash_table_lookup(enum_class->table.value_to_quark,
- (gconstpointer) v);
- return (GQuark) (unsigned long) q;
-}
-
-uint64_t enum_quark_to_uint(const struct type_class_enum *enum_class,
- size_t len, int byte_order, GQuark q)
-{
- gconstpointer v = g_hash_table_lookup(enum_class->table.quark_to_value,
- (gconstpointer) (unsigned long) q);
- return *(const uint64_t *) v;
-}
-
-int64_t enum_quark_to_int(const struct type_class_enum *enum_class,
- size_t len, int byte_order, GQuark q)
-{
- gconstpointer v = g_hash_table_lookup(enum_class->table.quark_to_value,
- (gconstpointer) (unsigned long) q);
- return *(const int64_t *) v;
-}
-
-guint enum_val_hash(gconstpointer key)
-{
- return g_direct_hash(key);
-}
-
-gboolean enum_val_equal(gconstpointer a, gconstpointer b)
-{
- return g_direct_equal(a, b);
-}
-
-void enum_val_free(void *ptr)
-{
-}
-
-void enum_signed_insert(struct type_class_enum *enum_class,
- int64_t v, GQuark q)
-{
- g_hash_table_insert(enum_class->table.value_to_quark, (gpointer) v,
- (gpointer) (unsigned long) q);
- g_hash_table_insert(enum_class->table.quark_to_value,
- (gpointer) (unsigned long) q,
- valuep);
-}
-
-void enum_unsigned_insert(struct type_class_enum *enum_class,
- uint64_t v, GQuark q)
-{
- g_hash_table_insert(enum_class->table.value_to_quark, (gpointer) v,
- (gpointer) (unsigned long) q);
- g_hash_table_insert(enum_class->table.quark_to_value,
- (gpointer) (unsigned long) q,
- valuep);
-}
-#endif /* __WORDSIZE != 32 */
-
-size_t enum_copy(unsigned char *dest, const struct format *fdest,
- const unsigned char *src, const struct format *fsrc,
- const struct type_class *type_class)
-{
- struct type_class_enum *enum_class =
- container_of(type_class, struct type_class_enum, p);
- struct type_class_integer *int_class = &enum_class->p;
- GQuark v;
-
- v = fsrc->enum_read(src, enum_class)
- return fdest->enum_write(dest, enum_class, v);
-}
-
-void enum_type_free(struct type_class_enum *enum_class)
-{
- g_hash_table_destroy(enum_class->table.value_to_quark);
- g_hash_table_destroy(enum_class->table.quark_to_value);
- g_free(enum_class);
-}
-
-static
-void _enum_type_free(struct type_class *type_class)
-{
- struct type_class_enum *enum_class =
- container_of(type_class, struct type_class_enum, p);
- enum_type_free(enum_class);
-}
-
-struct type_class_enum *enum_type_new(const char *name,
- size_t len, int byte_order,
- int signedness,
- size_t alignment)
-{
- struct type_class_integer *int_class;
- int ret;
-
- enum_class = g_new(struct type_class_enum, 1);
- enum_class->table.value_to_quark = g_hash_table_new(enum_val_hash,
- enum_val_equal);
- enum_class->table.quark_to_value = g_hash_table_new_full(g_direct_hash,
- g_direct_equal,
- NULL, enum_val_free);
- int_class = &enum_class->p;
- int_class->p.name = g_quark_from_string(name);
- int_class->p.alignment = alignment;
- int_class->p.copy = enum_copy;
- int_class->p.free = _enum_type_free;
- int_class->len = len;
- int_class->byte_order = byte_order;
- int_class->signedness = signedness;
- if (int_class->p.name) {
- ret = register_type(&int_class->p);
- if (ret) {
- g_hash_table_destroy(enum_class->table.value_to_quark);
- g_hash_table_destroy(enum_class->table.quark_to_value);
- g_free(enum_class);
- return NULL;
- }
- }
- return enum_class;
-}
projects / babeltrace.git / blobdiff