+++ /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/format.h>
-#include <stdint.h>
-#include <glib.h>
-
-static
-void enum_range_set_free(void *ptr)
-{
- g_array_unref(ptr);
-}
-
-/*
- * Returns a GArray or NULL.
- * Caller must release the GArray with g_array_unref().
- */
-GArray *enum_uint_to_quark_set(const struct type_class_enum *enum_class,
- uint64_t v)
-{
- struct enum_range_to_quark *iter;
- GArray *qs, *ranges = NULL;
-
- /* Single values lookup */
- qs = g_hash_table_lookup(enum_class->table.value_to_quark_set, &v);
-
- /* Range lookup */
- cds_list_for_each_entry(iter, &enum_class->table.range_to_quark, node) {
- if (iter->range.start._unsigned > v || iter->range.end._unsigned < v)
- continue;
- if (!ranges) {
- size_t qs_len = 0;
-
- if (qs)
- qs_len = qs->len;
- ranges = g_array_sized_new(FALSE, TRUE,
- sizeof(struct enum_range),
- qs_len + 1);
- g_array_set_size(ranges, qs_len + 1);
- if (qs)
- memcpy(ranges->data, qs->data,
- sizeof(struct enum_range) * qs_len);
- g_array_index(ranges, struct enum_range, qs_len) = iter->range;
- } else {
- g_array_set_size(ranges, ranges->len + 1);
- g_array_index(ranges, struct enum_range, ranges->len) = iter->range;
- }
- }
- if (!ranges) {
- ranges = qs;
- g_array_ref(ranges);
- }
- return ranges;
-}
-
-/*
- * Returns a GArray or NULL.
- * Caller must release the GArray with g_array_unref().
- */
-GArray *enum_int_to_quark_set(const struct type_class_enum *enum_class, uint64_t v)
-{
- struct enum_range_to_quark *iter;
- GArray *qs, *ranges = NULL;
-
- /* Single values lookup */
- qs = g_hash_table_lookup(enum_class->table.value_to_quark_set, &v);
-
- /* Range lookup */
- cds_list_for_each_entry(iter, &enum_class->table.range_to_quark, node) {
- if (iter->range.start._signed > v || iter->range.end._signed < v)
- continue;
- if (!ranges) {
- size_t qs_len = 0;
-
- if (qs)
- qs_len = qs->len;
- ranges = g_array_sized_new(FALSE, TRUE,
- sizeof(struct enum_range),
- qs_len + 1);
- g_array_set_size(ranges, qs_len + 1);
- if (qs)
- memcpy(ranges->data, qs->data,
- sizeof(struct enum_range) * qs_len);
- g_array_index(ranges, struct enum_range, qs_len) = iter->range;
- } else {
- g_array_set_size(ranges, ranges->len + 1);
- g_array_index(ranges, struct enum_range, ranges->len) = iter->range;
- }
- }
- if (!ranges) {
- ranges = qs;
- g_array_ref(ranges);
- }
- return ranges;
-}
-
-#if (__WORDSIZE == 32)
-static
-guint enum_val_hash(gconstpointer key)
-{
- int64_t ukey = *(const int64_t *)key;
-
- return (guint)ukey ^ (guint)(ukey >> 32);
-}
-
-static
-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;
-}
-
-static
-void enum_val_free(void *ptr)
-{
- g_free(ptr);
-}
-
-static
-void enum_signed_insert_value_to_quark_set(struct type_class_enum *enum_class,
- int64_t v, GQuark q)
-{
- int64_t *valuep;
- GArray *array;
-
- array = g_hash_table_lookup(enum_class->table.value_to_quark_set, &v);
- if (!array) {
- array = g_array_sized_new(FALSE, TRUE, sizeof(GQuark), 1);
- g_array_set_size(array, 1);
- g_array_index(array, GQuark, array->len - 1) = q;
- valuep = g_new(int64_t, 1);
- *valuep = v;
- g_hash_table_insert(enum_class->table.value_to_quark_set, valuep, array);
- } else {
- g_array_set_size(array, array->len + 1);
- g_array_index(array, GQuark, array->len - 1) = q;
- }
-}
-
-static
-void enum_unsigned_insert_value_to_quark_set(struct type_class_enum *enum_class,
- uint64_t v, GQuark q)
-{
- uint64_t *valuep;
- GArray *array;
-
- array = g_hash_table_lookup(enum_class->table.value_to_quark_set, &v);
- if (!array) {
- array = g_array_sized_new(FALSE, TRUE, sizeof(GQuark), 1);
- g_array_set_size(array, 1);
- g_array_index(array, GQuark, array->len - 1) = q;
- valuep = g_new(uint64_t, 1);
- *valuep = v;
- g_hash_table_insert(enum_class->table.value_to_quark_set, valuep, array);
- } else {
- g_array_set_size(array, array->len + 1);
- g_array_index(array, GQuark, array->len - 1) = q;
- }
-}
-#else /* __WORDSIZE != 32 */
-static
-guint enum_val_hash(gconstpointer key)
-{
- return g_direct_hash(key);
-}
-
-static
-gboolean enum_val_equal(gconstpointer a, gconstpointer b)
-{
- return g_direct_equal(a, b);
-}
-
-static
-void enum_val_free(void *ptr)
-{
-}
-
-static
-void enum_signed_insert_value_to_quark_set(struct type_class_enum *enum_class,
- int64_t v, GQuark q)
-{
- GArray *array;
-
- array = g_hash_table_lookup(enum_class->table.value_to_quark_set,
- (gconstpointer) v);
- if (!array) {
- array = g_array_sized_new(FALSE, TRUE, sizeof(GQuark), 1);
- g_array_set_size(array, 1);
- g_array_index(array, GQuark, array->len - 1) = q;
- g_hash_table_insert(enum_class->table.value_to_quark_set,
- (gpointer) v, array);
- } else {
- g_array_set_size(array, array->len + 1);
- g_array_index(array, GQuark, array->len - 1) = q;
- }
-}
-
-static
-void enum_unsigned_insert_value_to_quark_set(struct type_class_enum *enum_class,
- uint64_t v, GQuark q)
-{
- GArray *array;
-
- array = g_hash_table_lookup(enum_class->table.value_to_quark_set,
- (gconstpointer) v);
- if (!array) {
- array = g_array_sized_new(FALSE, TRUE, sizeof(GQuark), 1);
- g_array_set_size(array, 1);
- g_array_index(array, GQuark, array->len - 1) = q;
- g_hash_table_insert(enum_class->table.value_to_quark_set,
- (gpointer) v, array);
- } else {
- g_array_set_size(array, array->len + 1);
- g_array_index(array, GQuark, array->len - 1) = q;
- }
-}
-#endif /* __WORDSIZE != 32 */
-
-GArray *enum_quark_to_range_set(const struct type_class_enum *enum_class,
- GQuark q)
-{
- return g_hash_table_lookup(enum_class->table.quark_to_range_set,
- (gconstpointer) (unsigned long) q);
-}
-
-static
-void enum_signed_insert_range_to_quark(struct type_class_enum *enum_class,
- int64_t start, int64_t end, GQuark q)
-{
- struct enum_range_to_quark *rtoq;
-
- rtoq = g_new(struct enum_range_to_quark, 1);
- cds_list_add(&rtoq->node, &enum_class->table.range_to_quark);
- rtoq->range.start._signed = start;
- rtoq->range.end._signed = end;
- rtoq->quark = q;
-}
-
-static
-void enum_unsigned_insert_range_to_quark(struct type_class_enum *enum_class,
- uint64_t start, uint64_t end, GQuark q)
-{
- struct enum_range_to_quark *rtoq;
-
- rtoq = g_new(struct enum_range_to_quark, 1);
- cds_list_add(&rtoq->node, &enum_class->table.range_to_quark);
- rtoq->range.start._unsigned = start;
- rtoq->range.end._unsigned = end;
- rtoq->quark = q;
-}
-
-void enum_signed_insert(struct type_class_enum *enum_class,
- int64_t start, int64_t end, GQuark q)
-{
- GArray *array;
- struct enum_range *range;
-
- if (start == end) {
- enum_signed_insert_value_to_quark_set(enum_class, start, q);
- } else {
- if (start > end) {
- uint64_t tmp;
-
- tmp = start;
- start = end;
- end = tmp;
- }
- enum_signed_insert_range_to_quark(enum_class, start, end, q);
- }
-
- array = g_hash_table_lookup(enum_class->table.quark_to_range_set,
- (gconstpointer) (unsigned long) q);
- if (!array) {
- array = g_array_sized_new(FALSE, TRUE,
- sizeof(struct enum_range), 1);
- g_hash_table_insert(enum_class->table.quark_to_range_set,
- (gpointer) (unsigned long) q,
- array);
- }
- g_array_set_size(array, array->len + 1);
- range = &g_array_index(array, struct enum_range, array->len - 1);
- range->start._signed = start;
- range->end._signed = end;
-}
-
-void enum_unsigned_insert(struct type_class_enum *enum_class,
- uint64_t start, uint64_t end, GQuark q)
-{
- GArray *array;
- struct enum_range *range;
-
-
- if (start == end) {
- enum_unsigned_insert_value_to_quark_set(enum_class, start, q);
- } else {
- if (start > end) {
- uint64_t tmp;
-
- tmp = start;
- start = end;
- end = tmp;
- }
- enum_unsigned_insert_range_to_quark(enum_class, start, end, q);
- }
-
- array = g_hash_table_lookup(enum_class->table.quark_to_range_set,
- (gconstpointer) (unsigned long) q);
- if (!array) {
- array = g_array_sized_new(FALSE, TRUE,
- sizeof(struct enum_range), 1);
- g_hash_table_insert(enum_class->table.quark_to_range_set,
- (gpointer) (unsigned long) q,
- array);
- }
- g_array_set_size(array, array->len + 1);
- range = &g_array_index(array, struct enum_range, array->len - 1);
- range->start._unsigned = start;
- range->end._unsigned = end;
-}
-
-void enum_copy(struct stream_pos *dest, const struct format *fdest,
- struct stream_pos *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.p);
- GArray *array;
- GQuark v;
-
- array = fsrc->enum_read(src, enum_class);
- assert(array);
- /*
- * Arbitrarily choose the first one.
- * TODO: use direct underlying type read/write intead. Not doing it for
- * now to test enum read and write code.
- */
- v = g_array_index(array, GQuark, 0);
- return fdest->enum_write(dest, enum_class, v);
-}
-
-void enum_type_free(struct type_class_enum *enum_class)
-{
- struct enum_range_to_quark *iter, *tmp;
-
- g_hash_table_destroy(enum_class->table.value_to_quark_set);
- cds_list_for_each_entry_safe(iter, tmp, &enum_class->table.range_to_quark, node) {
- cds_list_del(&iter->node);
- g_free(iter);
- }
- g_hash_table_destroy(enum_class->table.quark_to_range_set);
- 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.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_enum *enum_class;
- struct type_class_integer *int_class;
- int ret;
-
- enum_class = g_new(struct type_class_enum, 1);
- enum_class->table.value_to_quark_set = g_hash_table_new_full(enum_val_hash,
- enum_val_equal,
- enum_val_free,
- enum_range_set_free);
- CDS_INIT_LIST_HEAD(&enum_class->table.range_to_quark);
- enum_class->table.quark_to_range_set = g_hash_table_new_full(g_int_hash,
- g_int_equal,
- NULL, enum_range_set_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->p.ref = 1;
- 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) {
- struct enum_range_to_quark *iter, *tmp;
-
- g_hash_table_destroy(enum_class->table.value_to_quark_set);
- cds_list_for_each_entry_safe(iter, tmp, &enum_class->table.range_to_quark, node) {
- cds_list_del(&iter->node);
- g_free(iter);
- }
- g_hash_table_destroy(enum_class->table.quark_to_range_set);
- g_free(enum_class);
- return NULL;
- }
- }
- return enum_class;
-}
projects / babeltrace.git / blobdiff