-/* $Id$ */
+/* dict - a generic dictionary, variation over hash table */
-/* dict - a generic dictionary, variation over the B-tree concept */
-
-/* Copyright (c) 2003,2004 Martin Quinson. All rights reserved. */
+/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
+ * All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
{
xbt_dict_t dict;
- if (dict_mallocator == NULL) {
- /* first run */
- dict_mallocator = xbt_mallocator_new(256,
- dict_mallocator_new_f,
- dict_mallocator_free_f,
- dict_mallocator_reset_f);
- dict_elm_mallocator = xbt_mallocator_new(256,
- dict_elm_mallocator_new_f,
- dict_elm_mallocator_free_f,
- dict_elm_mallocator_reset_f);
- }
-
dict = xbt_mallocator_get(dict_mallocator);
dict->table_size = 127;
dict->table = xbt_new0(xbt_dictelm_t, dict->table_size + 1);
if (dict != NULL && *dict != NULL) {
table_size = (*dict)->table_size;
table = (*dict)->table;
- for (i = 0; (*dict)->count && i < table_size; i++) {
+ /* Warning: the size of the table is 'table_size+1'...
+ * This is because table_size is used as a binary mask in xbt_dict_rehash */
+ for (i = 0; (*dict)->count && i <= table_size; i++) {
current = table[i];
while (current != NULL) {
previous = current;
/**
* Returns the amount of elements in the dict
*/
-unsigned int xbt_dict_size(xbt_dict_t dict)
+XBT_INLINE unsigned int xbt_dict_size(xbt_dict_t dict)
{
- return dict->count;
+ return (dict ? (unsigned int) dict->count : (unsigned int) 0);
}
/**
* Returns the hash code of a string.
*/
-static XBT_INLINE unsigned int xbt_dict_hash_ext(const char *str, int str_len)
+static XBT_INLINE unsigned int xbt_dict_hash_ext(const char *str,
+ int str_len)
{
while (bp < be) {
/* multiply by the 32 bit FNV magic prime mod 2^32 */
hash +=
- (hash << 1) + (hash << 4) + (hash << 7) + (hash << 8) + (hash << 24);
+ (hash << 1) + (hash << 4) + (hash << 7) + (hash << 8) +
+ (hash << 24);
/* xor the bottom with the current octet */
hash ^= (unsigned int) *bp++;
while (*str) {
/* multiply by the 32 bit FNV magic prime mod 2^32 */
hash +=
- (hash << 1) + (hash << 4) + (hash << 7) + (hash << 8) + (hash << 24);
+ (hash << 1) + (hash << 4) + (hash << 7) + (hash << 8) +
+ (hash << 24);
/* xor the bottom with the current byte */
hash ^= (unsigned int) *str++;
register xbt_dictelm_t *pprev;
currcell =
- (xbt_dictelm_t *) xbt_realloc((char *) dict->table,
- newsize * sizeof(xbt_dictelm_t));
+ (xbt_dictelm_t *) xbt_realloc((char *) dict->table,
+ newsize * sizeof(xbt_dictelm_t));
memset(&currcell[oldsize], 0, oldsize * sizeof(xbt_dictelm_t)); /* zero second half */
dict->table_size = --newsize;
dict->table = currcell;
* set the \a data in the structure under the \a key, which is a
* null terminated string.
*/
-void xbt_dict_set(xbt_dict_t dict,
- const char *key, void *data, void_f_pvoid_t free_ctn)
+XBT_INLINE void xbt_dict_set(xbt_dict_t dict,
+ const char *key, void *data,
+ void_f_pvoid_t free_ctn)
{
xbt_dict_set_ext(dict, key, strlen(key), data, free_ctn);
*
* Search the given \a key. Throws not_found_error when not found.
*/
-void *xbt_dict_get_ext(xbt_dict_t dict, const char *key, int key_len)
+XBT_INLINE void *xbt_dict_get_ext(xbt_dict_t dict, const char *key,
+ int key_len)
{
/**
* \brief like xbt_dict_get_ext(), but returning NULL when not found
*/
-void *xbt_dict_get_or_null_ext(xbt_dict_t dict, const char *key, int key_len)
+void *xbt_dict_get_or_null_ext(xbt_dict_t dict, const char *key,
+ int key_len)
{
+
unsigned int hash_code = xbt_dict_hash_ext(key, key_len);
xbt_dictelm_t current;
*
* Returns NULL if the object cannot be found
*/
-char *xbt_dict_get_key(xbt_dict_t dict, void*data) {
+char *xbt_dict_get_key(xbt_dict_t dict, const void *data)
+{
int i;
xbt_dictelm_t current;
* Check xbt_dict_get_or_null() for a version returning NULL without exception when
* not found.
*/
-void *xbt_dict_get(xbt_dict_t dict, const char *key)
+XBT_INLINE void *xbt_dict_get(xbt_dict_t dict, const char *key)
{
unsigned int hash_code = xbt_dict_hash(key);
/**
* \brief like xbt_dict_get(), but returning NULL when not found
*/
-void *xbt_dict_get_or_null(xbt_dict_t dict, const char *key)
+XBT_INLINE void *xbt_dict_get_or_null(xbt_dict_t dict, const char *key)
{
unsigned int hash_code = xbt_dict_hash(key);
xbt_dictelm_t current;
current = dict->table[hash_code & dict->table_size];
while (current != NULL &&
- hash_code != current->hash_code && strcmp(key, current->key))
+ (hash_code != current->hash_code || strcmp(key, current->key)))
current = current->next;
if (current == NULL)
*
* Remove the entry associated with the given \a key (throws not_found)
*/
-void xbt_dict_remove_ext(xbt_dict_t dict, const char *key, int key_len)
+XBT_INLINE void xbt_dict_remove_ext(xbt_dict_t dict, const char *key,
+ int key_len)
{
dict->count--;
}
+
+
/**
* \brief Remove data from the dict (null-terminated key)
*
*
* Remove the entry associated with the given \a key
*/
-void xbt_dict_remove(xbt_dict_t dict, const char *key)
+XBT_INLINE void xbt_dict_remove(xbt_dict_t dict, const char *key)
{
xbt_dict_remove_ext(dict, key, strlen(key));
}
+/**
+ * \brief Add data to the dict (arbitrary key)
+ * \param dict the container
+ * \param key the key to set the new data
+ * \param data the data to add in the dict
+ *
+ * Set the \a data in the structure under the \a key.
+ * Both \a data and \a key are considered as uintptr_t.
+ */
+XBT_INLINE void xbt_dicti_set(xbt_dict_t dict,
+ uintptr_t key, uintptr_t data)
+{
+
+ unsigned int hash_code =
+ xbt_dict_hash_ext((void *) &key, sizeof(uintptr_t));
+
+ xbt_dictelm_t current, previous = NULL;
+ xbt_assert(dict);
+
+ DEBUG5("ADD %zu->%zu; hash = %d, size = %d, & = %d", key, data,
+ hash_code, dict->table_size, hash_code & dict->table_size);
+ current = dict->table[hash_code & dict->table_size];
+ while (current != NULL &&
+ (hash_code != current->hash_code
+ || sizeof(uintptr_t) != current->key_len
+ || (((uintptr_t) key) != ((uintptr_t) current->key)))) {
+ previous = current;
+ current = current->next;
+ }
+
+ if (current == NULL) {
+ /* this key doesn't exist yet */
+ current = xbt_dictielm_new(key, hash_code, data);
+ dict->count++;
+ if (previous == NULL) {
+ dict->table[hash_code & dict->table_size] = current;
+ dict->fill++;
+ if ((dict->fill * 100) / (dict->table_size + 1) > MAX_FILL_PERCENT)
+ xbt_dict_rehash(dict);
+ } else {
+ previous->next = current;
+ }
+ } else {
+
+ /* there is already an element with the same key: overwrite it */
+ if (current->content != NULL && current->free_f != NULL) {
+ current->free_f(current->content);
+ }
+ current->content = (void *) data;
+ current->free_f = NULL;
+ }
+}
+
+/**
+ * \brief Retrieve data from the dict (key considered as a uintptr_t)
+ *
+ * \param dict the dealer of data
+ * \param key the key to find data
+ * \return the data that we are looking for (or 0 if not found)
+ *
+ * Mixing uintptr_t keys with regular keys in the same dict is discouraged
+ */
+XBT_INLINE uintptr_t xbt_dicti_get(xbt_dict_t dict, uintptr_t key)
+{
+
+ unsigned int hash_code =
+ xbt_dict_hash_ext(((void *) &key), sizeof(uintptr_t));
+ xbt_dictelm_t current;
+
+ xbt_assert(dict);
+
+ current = dict->table[hash_code & dict->table_size];
+ while (current != NULL &&
+ (hash_code != current->hash_code
+ || sizeof(uintptr_t) != current->key_len
+ || (((uintptr_t) key) != ((uintptr_t) current->key)))) {
+ current = current->next;
+ }
+
+ if (current == NULL)
+ return 0;
+
+ return (uintptr_t) (current->content);
+}
+
+/** Remove a uintptr_t key from the dict */
+XBT_INLINE void xbt_dicti_remove(xbt_dict_t dict, uintptr_t key)
+{
+
+ unsigned int hash_code =
+ xbt_dict_hash_ext(((void *) &key), sizeof(uintptr_t));
+ xbt_dictelm_t current, previous = NULL;
+
+
+ current = dict->table[hash_code & dict->table_size];
+ while (current != NULL &&
+ (hash_code != current->hash_code
+ || sizeof(uintptr_t) != current->key_len
+ || (((uintptr_t) key) != ((uintptr_t) current->key)))) {
+ previous = current; /* save the previous node */
+ current = current->next;
+ }
+
+ if (current == NULL)
+ THROW1(not_found_error, 0, "key %zu not found", key);
+
+ if (previous != NULL) {
+ previous->next = current->next;
+ } else {
+ dict->table[hash_code & dict->table_size] = current->next;
+ }
+
+ if (!dict->table[hash_code & dict->table_size])
+ dict->fill--;
+
+ xbt_dictelm_free(current);
+ dict->count--;
+}
+
+
/**
* \brief Remove all data from the dict
* \param dict the dict
* \brief Return the number of elements in the dict.
* \param dict a dictionary
*/
-int xbt_dict_length(xbt_dict_t dict)
+XBT_INLINE int xbt_dict_length(xbt_dict_t dict)
{
xbt_assert(dict);
fputs(s, stdout);
}
+/**
+ * \brief test if the dict is empty or not
+ */
+XBT_INLINE int xbt_dict_is_empty(xbt_dict_t dict)
+{
+ return (xbt_dict_size(dict) == 0);
+}
/**
* \brief Outputs the content of the structure (debugging purpose)
xbt_dynar_free(&sizes);
}
+/**
+ * Create the dict mallocators.
+ * This is an internal XBT function called during the lib initialization.
+ * It can be used several times to recreate the mallocator, for example when you switch to MC mode
+ */
+void xbt_dict_preinit(void)
+{
+ if (dict_mallocator != NULL) {
+ /* Already created. I guess we want to switch to MC mode, so kill the previously created mallocator */
+ xbt_mallocator_free(dict_mallocator);
+ xbt_mallocator_free(dict_elm_mallocator);
+ }
+
+ dict_mallocator = xbt_mallocator_new(256,
+ dict_mallocator_new_f,
+ dict_mallocator_free_f,
+ dict_mallocator_reset_f);
+ dict_elm_mallocator = xbt_mallocator_new(256,
+ dict_elm_mallocator_new_f,
+ dict_elm_mallocator_free_f,
+ dict_elm_mallocator_reset_f);
+}
+
/**
* Destroy the dict mallocators.
- * This is an internal XBT function called by xbt_exit().
+ * This is an internal XBT function during the lib initialization
*/
-void xbt_dict_exit(void)
+void xbt_dict_postexit(void)
{
if (dict_mallocator != NULL) {
xbt_mallocator_free(dict_mallocator);
{
char *data = xbt_strdup(data_to_fill);
- xbt_test_log2("Add %s under %s", PRINTF_STR(data_to_fill), PRINTF_STR(key));
+ xbt_test_log2("Add %s under %s", PRINTF_STR(data_to_fill),
+ PRINTF_STR(key));
xbt_dict_set(head, key, data, &free);
if (XBT_LOG_ISENABLED(xbt_dict, xbt_log_priority_debug)) {
TRY {
data = xbt_dict_get(head, data);
- THROW1(unknown_error, 0, "Found something which shouldn't be there (%s)",
- data);
+ THROW1(unknown_error, 0,
+ "Found something which shouldn't be there (%s)", data);
} CATCH(e) {
if (e.category != not_found_error)
xbt_test_exception(e);
length);
xbt_dict_foreach(dict, cursor, key, data)
- effective++;
+ effective++;
xbt_test_assert2(effective == length, "Effective length(%d) != %d.",
effective, length);
static void count_check_get_key(xbt_dict_t dict, int length)
{
xbt_dict_cursor_t cursor;
- char *key,*key2;
+ char *key, *key2;
void *data;
int effective = 0;
- xbt_test_add1("Count elements (expecting %d), and test the getkey function", length);
+ xbt_test_add1
+ ("Count elements (expecting %d), and test the getkey function",
+ length);
xbt_test_assert2(xbt_dict_length(dict) == length,
"Announced length(%d) != %d.", xbt_dict_length(dict),
length);
xbt_dict_foreach(dict, cursor, key, data) {
effective++;
- key2 = xbt_dict_get_key(dict,data);
- xbt_assert2(!strcmp(key,key2),
- "The data was registered under %s instead of %s as expected",key2,key);
+ key2 = xbt_dict_get_key(dict, data);
+ xbt_assert2(!strcmp(key, key2),
+ "The data was registered under %s instead of %s as expected",
+ key2, key);
}
xbt_test_assert2(effective == length, "Effective length(%d) != %d.",
char *data;
-XBT_TEST_UNIT("basic", test_dict_basic,"Basic usage: change, retrieve, traverse")
+XBT_TEST_UNIT("basic", test_dict_basic, "Basic usage: change, retrieve, traverse")
{
xbt_test_add0("Traversal the null dictionary");
traverse(head);
xbt_dict_free(&head);
xbt_test_add0
- ("Remove each data manually (traversing the resulting dictionary each time)");
+ ("Remove each data manually (traversing the resulting dictionary each time)");
fill(&head);
debuged_remove(head, "12a");
traverse(head);
}
traverse(head);
- xbt_test_add0("Free dict, create new fresh one, and then reset the dict");
+ xbt_test_add0
+ ("Free dict, create new fresh one, and then reset the dict");
xbt_dict_free(&head);
fill(&head);
xbt_dict_reset(head);
xbt_dict_free(&head);
}
+static void debuged_addi(xbt_dict_t head, uintptr_t key, uintptr_t data)
+{
+ uintptr_t stored_data = 0;
+ xbt_test_log2("Add %zu under %zu", data, key);
+
+ xbt_dicti_set(head, key, data);
+ if (XBT_LOG_ISENABLED(xbt_dict, xbt_log_priority_debug)) {
+ xbt_dict_dump(head, (void (*)(void *)) &printf);
+ fflush(stdout);
+ }
+ stored_data = xbt_dicti_get(head, key);
+ xbt_test_assert3(stored_data == data,
+ "Retrieved data (%zu) is not what I just stored (%zu) under key %zu",
+ stored_data, data, key);
+}
+
+XBT_TEST_UNIT("dicti", test_dict_scalar, "Scalar data and key management")
+{
+ xbt_test_add0("Fill in the dictionnary");
+
+ head = xbt_dict_new();
+ debuged_addi(head, 12, 12);
+ debuged_addi(head, 13, 13);
+ debuged_addi(head, 14, 14);
+ debuged_addi(head, 15, 15);
+ /* Change values */
+ debuged_addi(head, 12, 15);
+ debuged_addi(head, 15, 2000);
+ debuged_addi(head, 15, 3000);
+ /* 0 as key */
+ debuged_addi(head, 0, 1000);
+ debuged_addi(head, 0, 2000);
+ debuged_addi(head, 0, 3000);
+ /* 0 as value */
+ debuged_addi(head, 12, 0);
+ debuged_addi(head, 13, 0);
+ debuged_addi(head, 12, 0);
+ debuged_addi(head, 0, 0);
+
+ xbt_dict_free(&head);
+}
+
#define NB_ELM 20000
#define SIZEOFKEY 1024
static int countelems(xbt_dict_t head)
for (i = 0; i < 10; i++) {
xbt_test_add2("CRASH test number %d (%d to go)", i + 1, 10 - i - 1);
- xbt_test_log0("Fill the struct, count its elems and frees the structure");
- xbt_test_log1("using 1000 elements with %d chars long randomized keys.",
- SIZEOFKEY);
+ xbt_test_log0
+ ("Fill the struct, count its elems and frees the structure");
+ xbt_test_log1
+ ("using 1000 elements with %d chars long randomized keys.",
+ SIZEOFKEY);
head = xbt_dict_new();
/* if (i%10) printf("."); else printf("%d",i/10); fflush(stdout); */
nb = 0;
}
/*xbt_dict_dump(head,(void (*)(void*))&printf); */
- xbt_test_add0("Count the elements (retrieving the key and data for each)");
+ xbt_test_add0
+ ("Count the elements (retrieving the key and data for each)");
i = countelems(head);
xbt_test_log1("There is %d elements", i);
"with get, key=%s != data=%s", key, (char *) data);
data = xbt_dict_get_ext(head, key, strlen(key));
xbt_test_assert2(!strcmp(key, (char *) data),
- "with get_ext, key=%s != data=%s", key, (char *) data);
+ "with get_ext, key=%s != data=%s", key,
+ (char *) data);
}
}
free(key);
xbt_test_add0("Generic multicache CRASH test");
- xbt_test_log4(" Fill the struct and frees it %d times, using %d elements, "
- "depth of multicache=%d, key size=%d",
- NB_TEST, NB_ELM, DEPTH, KEY_SIZE);
+ xbt_test_log4
+ (" Fill the struct and frees it %d times, using %d elements, "
+ "depth of multicache=%d, key size=%d", NB_TEST, NB_ELM, DEPTH,
+ KEY_SIZE);
for (l = 0; l < DEPTH; l++) {
key = xbt_malloc(KEY_SIZE);
xbt_dynar_free(&keys);
}
-#endif /* SIMGRID_TEST */
+#endif /* SIMGRID_TEST */