eina_file_01.c \
eina_hash_01.c \
eina_hash_02.c \
+ eina_hash_03.c \
+ eina_hash_04.c \
+ eina_hash_05.c \
+ eina_hash_06.c \
+ eina_hash_07.c \
eina_iterator_01.c \
eina_list_01.c \
eina_list_02.c \
eina_file_01 \
eina_hash_01 \
eina_hash_02 \
+ eina_hash_03 \
+ eina_hash_04 \
+ eina_hash_05 \
+ eina_hash_06 \
+ eina_hash_07 \
eina_iterator_01 \
eina_list_01 \
eina_list_02 \
// Now change the phone number
eina_error_set(0);
phone = eina_hash_set(phone_book, "Raul Seixas",
- strdup("+55 02 234-56789"));
+ strdup("+55 02 222-22222"));
if (phone)
{
- printf("Changing phone for Raul Seixas to +55 02 234-56789. ");
+ printf("Changing phone for Raul Seixas to +55 02 222-22222. ");
printf("Old phone was %s\n", phone);
free(phone);
}
--- /dev/null
+#include <stdio.h>
+#include <string.h>
+#include <Eina.h>
+
+/*
+ * Eina Hash - phonebook
+ *
+ * This example demonstrate the use of Eina Hash by implementing a phonebook
+ * that stores its contact data into the hash.
+ *
+ * It indexes the phone numbers by Contact Full Name, so it's a hash with
+ * string keys.
+ */
+
+struct _Phone_Entry {
+ const char *name; // Full name.
+ const char *number; // Phone number.
+};
+
+typedef struct _Phone_Entry Phone_Entry;
+
+static Phone_Entry _start_entries[] = {
+ { "Wolfgang Amadeus Mozart", "+01 23 456-78910" },
+ { "Ludwig van Beethoven", "+12 34 567-89101" },
+ { "Richard Georg Strauss", "+23 45 678-91012" },
+ { "Heitor Villa-Lobos", "+34 56 789-10123" },
+ { NULL, NULL }
+}; // _start_entries
+
+static void
+_phone_entry_free_cb(void *data)
+{
+ free(data);
+}
+
+static Eina_Bool
+_phone_book_foreach_cb(const Eina_Hash *phone_book, const void *key,
+ void *data, void *fdata)
+{
+ const char *name = key;
+ const char *number = data;
+ printf("%s: %s\n", name, number);
+
+ // Return EINA_FALSE to stop this callback from being called
+ return EINA_TRUE;
+}
+
+int
+main(int argc, const char *argv[])
+{
+ Eina_Hash *phone_book = NULL;
+ int i;
+ const char *entry_name = "Heitor Villa-Lobos";
+ char *phone = NULL;
+ Eina_Bool r;
+ Eina_Iterator *it;
+ void *data;
+
+ eina_init();
+
+ phone_book = eina_hash_string_small_new(_phone_entry_free_cb);
+
+ // Add initial entries to our hash
+ for (i = 0; _start_entries[i].name != NULL; i++)
+ {
+ eina_hash_add(phone_book, _start_entries[i].name,
+ strdup(_start_entries[i].number));
+ }
+
+ // Look for a specific entry and get its phone number
+ phone = eina_hash_find(phone_book, entry_name);
+ if (phone)
+ {
+ printf("Printing entry.\n");
+ printf("Name: %s\n", entry_name);
+ printf("Number: %s\n\n", phone);
+ }
+
+ // Delete this entry
+ r = eina_hash_del(phone_book, entry_name, NULL);
+ printf("Hash entry successfully deleted? %d\n\n", r);
+
+ // Modify the pointer data of an entry and free the old one
+ phone = eina_hash_modify(phone_book, "Richard Georg Strauss",
+ strdup("+23 45 111-11111"));
+ free(phone);
+
+ // Modify or add an entry to the hash with eina_hash_set
+ // Let's first add a new entry
+ eina_error_set(0);
+ phone = eina_hash_set(phone_book, "Raul Seixas",
+ strdup("+55 01 234-56789"));
+ if (!phone)
+ {
+ Eina_Error err = eina_error_get();
+ if (!err)
+ {
+ printf("No previous phone found for Raul Seixas. ");
+ printf("Creating new entry.\n");
+ }
+ else
+ printf("Error when setting phone for Raul Seixas\n");
+ }
+ else
+ {
+ printf("Old phone for Raul Seixas was %s\n", phone);
+ free(phone);
+ }
+
+ printf("\n");
+
+ // Now change the phone number
+ eina_error_set(0);
+ phone = eina_hash_set(phone_book, "Raul Seixas",
+ strdup("+55 02 222-22222"));
+ if (phone)
+ {
+ printf("Changing phone for Raul Seixas to +55 02 222-22222. ");
+ printf("Old phone was %s\n", phone);
+ free(phone);
+ }
+ else
+ {
+ Eina_Error err = eina_error_get();
+ if (err)
+ printf("Error when changing phone for Raul Seixas\n");
+ else
+ {
+ printf("No previous phone found for Raul Seixas. ");
+ printf("Creating new entry.\n");
+ }
+ }
+
+ // There are many ways to iterate over our Phone book.
+ // First, iterate showing the names and associated numbers.
+ printf("List of phones:\n");
+ eina_hash_foreach(phone_book, _phone_book_foreach_cb, NULL);
+ printf("\n");
+
+ // Now iterate using an iterator
+ printf("List of phones:\n");
+ it = eina_hash_iterator_tuple_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ Eina_Hash_Tuple *t = data;
+ const char *name = t->key;
+ const char *number = t->data;
+ printf("%s: %s\n", name, number);
+ }
+ eina_iterator_free(it); // Always free the iterator after its use
+ printf("\n");
+
+ // Just iterate over the keys (names)
+ printf("List of names in the phone book:\n");
+ it = eina_hash_iterator_key_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ const char *name = data;
+ printf("%s\n", name);
+ }
+ eina_iterator_free(it);
+ printf("\n");
+
+ // Just iterate over the data (numbers)
+ printf("List of numbers in the phone book:\n");
+ it = eina_hash_iterator_data_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ const char *number = data;
+ printf("%s\n", number);
+ }
+ eina_iterator_free(it);
+ printf("\n");
+
+ // Check how many items are in the phone book
+ printf("There are %d items in the hash.\n\n",
+ eina_hash_population(phone_book));
+
+ // Change the name (key) on an entry
+ eina_hash_move(phone_book, "Raul Seixas", "Alceu Valenca");
+ printf("List of phones after change:\n");
+ eina_hash_foreach(phone_book, _phone_book_foreach_cb, NULL);
+ printf("\n");
+
+ // Empty the phone book, but don't destroy it
+ eina_hash_free_buckets(phone_book);
+ printf("There are %d items in the hash.\n\n",
+ eina_hash_population(phone_book));
+
+ // Phone book could still be used, but we are freeing it since we are
+ // done for now
+ eina_hash_free(phone_book);
+
+ eina_shutdown();
+}
--- /dev/null
+#include <stdio.h>
+#include <string.h>
+#include <Eina.h>
+
+/*
+ * Eina Hash - phonebook
+ *
+ * This example demonstrate the use of Eina Hash by implementing a phonebook
+ * that stores its contact data into the hash.
+ *
+ * It indexes the phone numbers by Contact Full Name, so it's a hash with
+ * string keys.
+ */
+
+struct _Phone_Entry {
+ const char *name; // Full name.
+ const char *number; // Phone number.
+};
+
+typedef struct _Phone_Entry Phone_Entry;
+
+static Phone_Entry _start_entries[] = {
+ { "Wolfgang Amadeus Mozart", "+01 23 456-78910" },
+ { "Ludwig van Beethoven", "+12 34 567-89101" },
+ { "Richard Georg Strauss", "+23 45 678-91012" },
+ { "Heitor Villa-Lobos", "+34 56 789-10123" },
+ { NULL, NULL }
+}; // _start_entries
+
+static void
+_phone_entry_free_cb(void *data)
+{
+ free(data);
+}
+
+static Eina_Bool
+_phone_book_foreach_cb(const Eina_Hash *phone_book, const void *key,
+ void *data, void *fdata)
+{
+ const char *name = key;
+ const char *number = data;
+ printf("%s: %s\n", name, number);
+
+ // Return EINA_FALSE to stop this callback from being called
+ return EINA_TRUE;
+}
+
+int
+main(int argc, const char *argv[])
+{
+ Eina_Hash *phone_book = NULL;
+ int i;
+ const char *entry_name = "Heitor Villa-Lobos";
+ char *phone = NULL;
+ Eina_Bool r;
+ Eina_Iterator *it;
+ void *data;
+
+ eina_init();
+
+ phone_book = eina_hash_string_djb2_new(_phone_entry_free_cb);
+
+ // Add initial entries to our hash
+ for (i = 0; _start_entries[i].name != NULL; i++)
+ {
+ eina_hash_add(phone_book, _start_entries[i].name,
+ strdup(_start_entries[i].number));
+ }
+
+ // Look for a specific entry and get its phone number
+ phone = eina_hash_find(phone_book, entry_name);
+ if (phone)
+ {
+ printf("Printing entry.\n");
+ printf("Name: %s\n", entry_name);
+ printf("Number: %s\n\n", phone);
+ }
+
+ // Delete this entry
+ r = eina_hash_del(phone_book, entry_name, NULL);
+ printf("Hash entry successfully deleted? %d\n\n", r);
+
+ // Modify the pointer data of an entry and free the old one
+ phone = eina_hash_modify(phone_book, "Richard Georg Strauss",
+ strdup("+23 45 111-11111"));
+ free(phone);
+
+ // Modify or add an entry to the hash with eina_hash_set
+ // Let's first add a new entry
+ eina_error_set(0);
+ phone = eina_hash_set(phone_book, "Raul Seixas",
+ strdup("+55 01 234-56789"));
+ if (!phone)
+ {
+ Eina_Error err = eina_error_get();
+ if (!err)
+ {
+ printf("No previous phone found for Raul Seixas. ");
+ printf("Creating new entry.\n");
+ }
+ else
+ printf("Error when setting phone for Raul Seixas\n");
+ }
+ else
+ {
+ printf("Old phone for Raul Seixas was %s\n", phone);
+ free(phone);
+ }
+
+ printf("\n");
+
+ // Now change the phone number
+ eina_error_set(0);
+ phone = eina_hash_set(phone_book, "Raul Seixas",
+ strdup("+55 02 222-22222"));
+ if (phone)
+ {
+ printf("Changing phone for Raul Seixas to +55 02 222-22222. ");
+ printf("Old phone was %s\n", phone);
+ free(phone);
+ }
+ else
+ {
+ Eina_Error err = eina_error_get();
+ if (err)
+ printf("Error when changing phone for Raul Seixas\n");
+ else
+ {
+ printf("No previous phone found for Raul Seixas. ");
+ printf("Creating new entry.\n");
+ }
+ }
+
+ // There are many ways to iterate over our Phone book.
+ // First, iterate showing the names and associated numbers.
+ printf("List of phones:\n");
+ eina_hash_foreach(phone_book, _phone_book_foreach_cb, NULL);
+ printf("\n");
+
+ // Now iterate using an iterator
+ printf("List of phones:\n");
+ it = eina_hash_iterator_tuple_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ Eina_Hash_Tuple *t = data;
+ const char *name = t->key;
+ const char *number = t->data;
+ printf("%s: %s\n", name, number);
+ }
+ eina_iterator_free(it); // Always free the iterator after its use
+ printf("\n");
+
+ // Just iterate over the keys (names)
+ printf("List of names in the phone book:\n");
+ it = eina_hash_iterator_key_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ const char *name = data;
+ printf("%s\n", name);
+ }
+ eina_iterator_free(it);
+ printf("\n");
+
+ // Just iterate over the data (numbers)
+ printf("List of numbers in the phone book:\n");
+ it = eina_hash_iterator_data_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ const char *number = data;
+ printf("%s\n", number);
+ }
+ eina_iterator_free(it);
+ printf("\n");
+
+ // Check how many items are in the phone book
+ printf("There are %d items in the hash.\n\n",
+ eina_hash_population(phone_book));
+
+ // Change the name (key) on an entry
+ eina_hash_move(phone_book, "Raul Seixas", "Alceu Valenca");
+ printf("List of phones after change:\n");
+ eina_hash_foreach(phone_book, _phone_book_foreach_cb, NULL);
+ printf("\n");
+
+ // Empty the phone book, but don't destroy it
+ eina_hash_free_buckets(phone_book);
+ printf("There are %d items in the hash.\n\n",
+ eina_hash_population(phone_book));
+
+ // Phone book could still be used, but we are freeing it since we are
+ // done for now
+ eina_hash_free(phone_book);
+
+ eina_shutdown();
+}
--- /dev/null
+#include <stdio.h>
+#include <string.h>
+#include <Eina.h>
+
+/*
+ * Eina Hash - phonebook
+ *
+ * This example demonstrate the use of Eina Hash by implementing a phonebook
+ * that stores its contact data into the hash.
+ *
+ * It indexes the phone numbers by Contact Full Name, so it's a hash with
+ * string keys.
+ */
+
+struct _Phone_Entry {
+ int32_t id; // Full name.
+ const char *number; // Phone number.
+};
+
+typedef struct _Phone_Entry Phone_Entry;
+
+static Phone_Entry _start_entries[] = {
+ { 1, "+01 23 456-78910" },
+ { 2, "+12 34 567-89101" },
+ { 3, "+23 45 678-91012" },
+ { 4, "+34 56 789-10123" },
+ { -1, NULL }
+}; // _start_entries
+
+static void
+_phone_entry_free_cb(void *data)
+{
+ free(data);
+}
+
+static Eina_Bool
+_phone_book_foreach_cb(const Eina_Hash *phone_book, const void *key,
+ void *data, void *fdata)
+{
+ const int32_t *id = key;
+ const char *number = data;
+ printf("%d: %s\n", *id, number);
+
+ // Return EINA_FALSE to stop this callback from being called
+ return EINA_TRUE;
+}
+
+int
+main(int argc, const char *argv[])
+{
+ Eina_Hash *phone_book = NULL;
+ int i;
+ int32_t entry_id = 4;
+ char *phone = NULL;
+ Eina_Bool r;
+ Eina_Iterator *it;
+ void *data;
+
+ eina_init();
+
+ phone_book = eina_hash_int32_new(_phone_entry_free_cb);
+
+ // Add initial entries to our hash
+ for (i = 0; _start_entries[i].id != -1; i++)
+ {
+ eina_hash_add(phone_book, &_start_entries[i].id,
+ strdup(_start_entries[i].number));
+ }
+
+ // Look for a specific entry and get its phone number
+ phone = eina_hash_find(phone_book, &entry_id);
+ if (phone)
+ {
+ printf("Printing entry.\n");
+ printf("Id: %d\n", entry_id);
+ printf("Number: %s\n\n", phone);
+ }
+
+ // Delete this entry
+ r = eina_hash_del(phone_book, &entry_id, NULL);
+ printf("Hash entry successfully deleted? %d\n\n", r);
+
+ // Modify the pointer data of an entry and free the old one
+ int32_t id3 = 3;
+ phone = eina_hash_modify(phone_book, &id3,
+ strdup("+23 45 111-11111"));
+ free(phone);
+
+ // Modify or add an entry to the hash with eina_hash_set
+ // Let's first add a new entry
+ int32_t id5 = 5;
+ eina_error_set(0);
+ phone = eina_hash_set(phone_book, &id5,
+ strdup("+55 01 234-56789"));
+ if (!phone)
+ {
+ Eina_Error err = eina_error_get();
+ if (!err)
+ {
+ printf("No previous phone found for id5. ");
+ printf("Creating new entry.\n");
+ }
+ else
+ printf("Error when setting phone for Raul Seixas\n");
+ }
+ else
+ {
+ printf("Old phone for id5 was %s\n", phone);
+ free(phone);
+ }
+
+ printf("\n");
+
+ // Now change the phone number
+ eina_error_set(0);
+ phone = eina_hash_set(phone_book, &id5,
+ strdup("+55 02 222-22222"));
+ if (phone)
+ {
+ printf("Changing phone for id5 to +55 02 222-22222. ");
+ printf("Old phone was %s\n", phone);
+ free(phone);
+ }
+ else
+ {
+ Eina_Error err = eina_error_get();
+ if (err)
+ printf("Error when changing phone for id5\n");
+ else
+ {
+ printf("No previous phone found for id5. ");
+ printf("Creating new entry.\n");
+ }
+ }
+
+ // There are many ways to iterate over our Phone book.
+ // First, iterate showing the names and associated numbers.
+ printf("List of phones:\n");
+ eina_hash_foreach(phone_book, _phone_book_foreach_cb, NULL);
+ printf("\n");
+
+ // Now iterate using an iterator
+ printf("List of phones:\n");
+ it = eina_hash_iterator_tuple_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ Eina_Hash_Tuple *t = data;
+ const int32_t *id = t->key;
+ const char *number = t->data;
+ printf("%d: %s\n", *id, number);
+ }
+ eina_iterator_free(it); // Always free the iterator after its use
+ printf("\n");
+
+ // Just iterate over the keys (names)
+ printf("List of ids in the phone book:\n");
+ it = eina_hash_iterator_key_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ const int32_t *id = data;
+ printf("%d\n", *id);
+ }
+ eina_iterator_free(it);
+ printf("\n");
+
+ // Just iterate over the data (numbers)
+ printf("List of numbers in the phone book:\n");
+ it = eina_hash_iterator_data_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ const char *number = data;
+ printf("%s\n", number);
+ }
+ eina_iterator_free(it);
+ printf("\n");
+
+ // Check how many items are in the phone book
+ printf("There are %d items in the hash.\n\n",
+ eina_hash_population(phone_book));
+
+ // Change the name (key) on an entry
+ int32_t id6 = 6;
+ eina_hash_move(phone_book, &id5, &id6);
+ printf("List of phones after change:\n");
+ eina_hash_foreach(phone_book, _phone_book_foreach_cb, NULL);
+ printf("\n");
+
+ // Empty the phone book, but don't destroy it
+ eina_hash_free_buckets(phone_book);
+ printf("There are %d items in the hash.\n\n",
+ eina_hash_population(phone_book));
+
+ // Phone book could still be used, but we are freeing it since we are
+ // done for now
+ eina_hash_free(phone_book);
+
+ eina_shutdown();
+}
--- /dev/null
+#include <stdio.h>
+#include <string.h>
+#include <Eina.h>
+
+/*
+ * Eina Hash - phonebook
+ *
+ * This example demonstrate the use of Eina Hash by implementing a phonebook
+ * that stores its contact data into the hash.
+ *
+ * It indexes the phone numbers by Contact Full Name, so it's a hash with
+ * string keys.
+ */
+
+struct _Phone_Entry {
+ int64_t id; // Full name.
+ const char *number; // Phone number.
+};
+
+typedef struct _Phone_Entry Phone_Entry;
+
+static Phone_Entry _start_entries[] = {
+ { 1, "+01 23 456-78910" },
+ { 2, "+12 34 567-89101" },
+ { 3, "+23 45 678-91012" },
+ { 4, "+34 56 789-10123" },
+ { -1, NULL }
+}; // _start_entries
+
+static void
+_phone_entry_free_cb(void *data)
+{
+ free(data);
+}
+
+static Eina_Bool
+_phone_book_foreach_cb(const Eina_Hash *phone_book, const void *key,
+ void *data, void *fdata)
+{
+ const int64_t *id = key;
+ const char *number = data;
+ printf("%ld: %s\n", *id, number);
+
+ // Return EINA_FALSE to stop this callback from being called
+ return EINA_TRUE;
+}
+
+int
+main(int argc, const char *argv[])
+{
+ Eina_Hash *phone_book = NULL;
+ int i;
+ int64_t entry_id = 4;
+ char *phone = NULL;
+ Eina_Bool r;
+ Eina_Iterator *it;
+ void *data;
+
+ eina_init();
+
+ phone_book = eina_hash_int64_new(_phone_entry_free_cb);
+
+ // Add initial entries to our hash
+ for (i = 0; _start_entries[i].id != -1; i++)
+ {
+ eina_hash_add(phone_book, &_start_entries[i].id,
+ strdup(_start_entries[i].number));
+ }
+
+ // Look for a specific entry and get its phone number
+ phone = eina_hash_find(phone_book, &entry_id);
+ if (phone)
+ {
+ printf("Printing entry.\n");
+ printf("Id: %ld\n", entry_id);
+ printf("Number: %s\n\n", phone);
+ }
+
+ // Delete this entry
+ r = eina_hash_del(phone_book, &entry_id, NULL);
+ printf("Hash entry successfully deleted? %d\n\n", r);
+
+ // Modify the pointer data of an entry and free the old one
+ int64_t id3 = 3;
+ phone = eina_hash_modify(phone_book, &id3,
+ strdup("+23 45 111-11111"));
+ free(phone);
+
+ // Modify or add an entry to the hash with eina_hash_set
+ // Let's first add a new entry
+ int64_t id5 = 5;
+ eina_error_set(0);
+ phone = eina_hash_set(phone_book, &id5,
+ strdup("+55 01 234-56789"));
+ if (!phone)
+ {
+ Eina_Error err = eina_error_get();
+ if (!err)
+ {
+ printf("No previous phone found for id5. ");
+ printf("Creating new entry.\n");
+ }
+ else
+ printf("Error when setting phone for Raul Seixas\n");
+ }
+ else
+ {
+ printf("Old phone for id5 was %s\n", phone);
+ free(phone);
+ }
+
+ printf("\n");
+
+ // Now change the phone number
+ eina_error_set(0);
+ phone = eina_hash_set(phone_book, &id5,
+ strdup("+55 02 222-22222"));
+ if (phone)
+ {
+ printf("Changing phone for id5 to +55 02 222-22222. ");
+ printf("Old phone was %s\n", phone);
+ free(phone);
+ }
+ else
+ {
+ Eina_Error err = eina_error_get();
+ if (err)
+ printf("Error when changing phone for id5\n");
+ else
+ {
+ printf("No previous phone found for id5. ");
+ printf("Creating new entry.\n");
+ }
+ }
+
+ // There are many ways to iterate over our Phone book.
+ // First, iterate showing the names and associated numbers.
+ printf("List of phones:\n");
+ eina_hash_foreach(phone_book, _phone_book_foreach_cb, NULL);
+ printf("\n");
+
+ // Now iterate using an iterator
+ printf("List of phones:\n");
+ it = eina_hash_iterator_tuple_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ Eina_Hash_Tuple *t = data;
+ const int64_t *id = t->key;
+ const char *number = t->data;
+ printf("%ld: %s\n", *id, number);
+ }
+ eina_iterator_free(it); // Always free the iterator after its use
+ printf("\n");
+
+ // Just iterate over the keys (names)
+ printf("List of ids in the phone book:\n");
+ it = eina_hash_iterator_key_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ const int64_t *id = data;
+ printf("%ld\n", *id);
+ }
+ eina_iterator_free(it);
+ printf("\n");
+
+ // Just iterate over the data (numbers)
+ printf("List of numbers in the phone book:\n");
+ it = eina_hash_iterator_data_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ const char *number = data;
+ printf("%s\n", number);
+ }
+ eina_iterator_free(it);
+ printf("\n");
+
+ // Check how many items are in the phone book
+ printf("There are %d items in the hash.\n\n",
+ eina_hash_population(phone_book));
+
+ // Change the name (key) on an entry
+ int64_t id6 = 6;
+ eina_hash_move(phone_book, &id5, &id6);
+ printf("List of phones after change:\n");
+ eina_hash_foreach(phone_book, _phone_book_foreach_cb, NULL);
+ printf("\n");
+
+ // Empty the phone book, but don't destroy it
+ eina_hash_free_buckets(phone_book);
+ printf("There are %d items in the hash.\n\n",
+ eina_hash_population(phone_book));
+
+ // Phone book could still be used, but we are freeing it since we are
+ // done for now
+ eina_hash_free(phone_book);
+
+ eina_shutdown();
+}
--- /dev/null
+#include <stdio.h>
+#include <string.h>
+#include <Eina.h>
+
+/*
+ * Eina Hash - phonebook
+ *
+ * This example demonstrate the use of Eina Hash by implementing a phonebook
+ * that stores its contact data into the hash.
+ *
+ * It indexes the phone numbers by Contact Full Name, so it's a hash with
+ * string keys.
+ */
+
+struct _Phone_Entry {
+ const char *name; // Full name.
+ const char *number; // Phone number.
+};
+
+typedef struct _Phone_Entry Phone_Entry;
+
+static Phone_Entry _start_entries[] = {
+ { "Wolfgang Amadeus Mozart", "+01 23 456-78910" },
+ { "Ludwig van Beethoven", "+12 34 567-89101" },
+ { "Richard Georg Strauss", "+23 45 678-91012" },
+ { "Heitor Villa-Lobos", "+34 56 789-10123" },
+ { NULL, NULL }
+}; // _start_entries
+
+static const char *_nicknames[] = {
+ "mozzart",
+ "betho",
+ "george",
+ "hector",
+ NULL
+};
+
+static void
+_phone_entry_free_cb(void *data)
+{
+ free(data);
+}
+
+static Eina_Bool
+_phone_book_foreach_cb(const Eina_Hash *phone_book, const void *key,
+ void *data, void *fdata)
+{
+ Phone_Entry **pe = (Phone_Entry **)key;
+ const char *nick = data;
+ printf("%s: %s, nick=%s\n", (*pe)->name, (*pe)->number, nick);
+
+ // Return EINA_FALSE to stop this callback from being called
+ return EINA_TRUE;
+}
+
+int
+main(int argc, const char *argv[])
+{
+ Eina_Hash *phone_book = NULL;
+ int i;
+ Phone_Entry *entry_vl = &_start_entries[3];
+ Phone_Entry *p = NULL;
+ char *nick = NULL;
+ Eina_Bool r;
+ Eina_Iterator *it;
+ void *data;
+
+ eina_init();
+
+ phone_book = eina_hash_pointer_new(_phone_entry_free_cb);
+
+ // Add initial entries to our hash
+ for (i = 0; _start_entries[i].name != NULL; i++)
+ {
+ p = &_start_entries[i];
+ eina_hash_add(phone_book, &p,
+ strdup(_nicknames[i]));
+ }
+ printf("Phonebook:\n");
+ eina_hash_foreach(phone_book, _phone_book_foreach_cb, NULL);
+ printf("\n");
+
+ // Look for a specific entry and get its nickname
+ nick = eina_hash_find(phone_book, &entry_vl);
+ if (nick)
+ {
+ printf("Printing entry.\n");
+ printf("Name: %s\n", entry_vl->name);
+ printf("Number: %s\n", entry_vl->number);
+ printf("Nick: %s\n\n", nick);
+ }
+
+ // Delete this entry
+ r = eina_hash_del(phone_book, &entry_vl, NULL);
+ printf("Hash entry successfully deleted? %d\n\n", r);
+
+ // Modify the pointer data of an entry and free the old one
+ p = &_start_entries[2];
+ nick = eina_hash_modify(phone_book, &p,
+ strdup("el jorge"));
+ free(nick);
+
+ // Modify or add an entry to the hash with eina_hash_set
+ // Let's first add a new entry
+ eina_error_set(0);
+ Phone_Entry *p1 = malloc(sizeof(*p1));
+ p1->name = "Raul Seixas";
+ p1->number = "+55 01 234-56789";
+ nick = eina_hash_set(phone_book, &p1,
+ strdup("raulzito"));
+ if (!nick)
+ {
+ Eina_Error err = eina_error_get();
+ if (!err)
+ {
+ printf("No previous nick found for Raul Seixas. ");
+ printf("Creating new entry.\n");
+ }
+ else
+ printf("Error when setting nick for Raul Seixas\n");
+ }
+ else
+ {
+ printf("Old nick for Raul Seixas was %s\n", nick);
+ free(nick);
+ }
+
+ printf("\n");
+
+ // Now change the nick
+ eina_error_set(0);
+ nick = eina_hash_set(phone_book, &p1,
+ strdup("raulzao"));
+ if (nick)
+ {
+ printf("Changing nick for Raul Seixas to raulzao. ");
+ printf("Old nick was %s\n", nick);
+ free(nick);
+ }
+ else
+ {
+ Eina_Error err = eina_error_get();
+ if (err)
+ printf("Error when changing nick for Raul Seixas\n");
+ else
+ {
+ printf("No previous nick found for Raul Seixas. ");
+ printf("Creating new entry.\n");
+ }
+ }
+
+ // There are many ways to iterate over our Phone book.
+ // First, iterate showing the names, phones and associated nicks.
+ printf("Phonebook:\n");
+ eina_hash_foreach(phone_book, _phone_book_foreach_cb, NULL);
+ printf("\n");
+
+ // Now iterate using an iterator
+ printf("Phonebook:\n");
+ it = eina_hash_iterator_tuple_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ Eina_Hash_Tuple *t = data;
+ Phone_Entry **pe = (Phone_Entry **)t->key;
+ nick = t->data;
+ printf("%s: %s, nick=%s\n", (*pe)->name, (*pe)->number, nick);
+ }
+ eina_iterator_free(it); // Always free the iterator after its use
+ printf("\n");
+
+ // Just iterate over the keys (names)
+ printf("List of names/numbers in the phone book:\n");
+ it = eina_hash_iterator_key_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ Phone_Entry **pe = (Phone_Entry **)data;
+ printf("%s: %s\n", (*pe)->name, (*pe)->number);
+ }
+ eina_iterator_free(it);
+ printf("\n");
+
+ // Just iterate over the data (nicks)
+ printf("List of nicks in the phone book:\n");
+ it = eina_hash_iterator_data_new(phone_book);
+ while (eina_iterator_next(it, &data))
+ {
+ nick = data;
+ printf("%s\n", nick);
+ }
+ eina_iterator_free(it);
+ printf("\n");
+
+ // Check how many items are in the phone book
+ printf("There are %d items in the hash.\n\n",
+ eina_hash_population(phone_book));
+
+ // Change the name (key) on an entry
+ Phone_Entry *p2 = malloc(sizeof(*p2));
+ p2->name = "Alceu Valenca";
+ p2->number = "000000000000";
+ eina_hash_move(phone_book, p1, p2);
+ printf("List of phones after change:\n");
+ eina_hash_foreach(phone_book, _phone_book_foreach_cb, NULL);
+ printf("\n");
+
+ // Empty the phone book, but don't destroy it
+ eina_hash_free_buckets(phone_book);
+ printf("There are %d items in the hash.\n\n",
+ eina_hash_population(phone_book));
+
+ // Phone book could still be used, but we are freeing it since we are
+ // done for now
+ eina_hash_free(phone_book);
+
+ free(p1);
+ free(p2);
+
+ eina_shutdown();
+}
projects / framework / uifw / eina.git / commitdiff