+++ /dev/null
-#include "ecore_private.h"
-#include "Ecore_Data.h"
-
-static void ecore_string_free_cb(void *data);
-
-static Ecore_Hash *ecore_strings = NULL;
-static int ecore_string_init_count = 0;
-
-/**
- * @defgroup Ecore_String_Group String Instance Functions
- *
- * These functions allow you to store one copy of a string, and use it
- * throughout your program.
- *
- * This is a method to reduce the number of duplicated strings kept in
- * memory. It's pretty common for the same strings to be dynamically
- * allocated repeatedly between applications and libraries, especially in
- * circumstances where you could have multiple copies of a structure that
- * allocates the string. So rather than duplicating and freeing these
- * strings, you request a read-only pointer to an existing string and
- * only incur the overhead of a hash lookup.
- *
- * It sounds like micro-optimizing, but profiling has shown this can have
- * a significant impact as you scale the number of copies up. It improves
- * string creation/destruction speed, reduces memory use and decreases
- * memory fragmentation, so a win all-around.
- */
-
-/**
- * Initialize the ecore string internal structure.
- * @return Zero on failure, non-zero on successful initialization.
- */
-EAPI int
-ecore_string_init()
-{
- /*
- * No strings have been loaded at this point, so create the hash
- * table for storing string info for later.
- */
- if (!ecore_string_init_count)
- {
- ecore_strings = ecore_hash_new(ecore_str_hash, ecore_str_compare);
- if (!ecore_strings)
- return 0;
- ecore_hash_free_value_cb_set(ecore_strings, ecore_string_free_cb);
- }
- ecore_string_init_count++;
-
- return 1;
-}
-
-/**
- * Retrieves an instance of a string for use in an ecore program.
- * @param string The string to retrieve an instance of.
- * @return A pointer to an instance of the string on success.
- * @c NULL on failure.
- * @ingroup Ecore_String_Group
- */
-EAPI const char *
-ecore_string_instance(const char *string)
-{
- Ecore_String *str;
-
- CHECK_PARAM_POINTER_RETURN("string", string, NULL);
-
- /*
- * Check for a previous instance of the string, if not found, create
- * it.
- */
- str = ecore_hash_get(ecore_strings, string);
- if (!str)
- {
- int length;
-
- /*
- * Allocate and initialize a new string reference.
- */
- length = strlen(string) + 1;
-
- str = (Ecore_String *)malloc(sizeof(Ecore_String) + length * sizeof(char));
-
- str->string = (char*)(str + 1);
- str->references = 0;
-
- memcpy(str->string, string, length);
-
- ecore_hash_set(ecore_strings, str->string, str);
- }
-
- str->references++;
-
- return str->string;
-}
-
-/**
- * Notes that the given string has lost an instance.
- *
- * It will free the string if no other instances are left.
- *
- * @param string The given string.
- * @ingroup Ecore_String_Group
- */
-EAPI void
-ecore_string_release(const char *string)
-{
- Ecore_String *str;
-
- CHECK_PARAM_POINTER("string", string);
-
- str = ecore_hash_get(ecore_strings, (char *)string);
- if (!str)
- return;
-
- str->references--;
- if (str->references < 1)
- {
- ecore_hash_remove(ecore_strings, (char *)string);
- FREE(str);
- }
-}
-
-EAPI void
-ecore_string_hash_dump_graph(void)
-{
- ecore_hash_dump_graph(ecore_strings);
-}
-
-EAPI void
-ecore_string_hash_dump_stats(void)
-{
- ecore_hash_dump_stats(ecore_strings);
-}
-
-/**
- * Shutdown the ecore string internal structures
- */
-EAPI void
-ecore_string_shutdown()
-{
- --ecore_string_init_count;
- if (!ecore_string_init_count)
- {
- ecore_hash_destroy(ecore_strings);
- ecore_strings = NULL;
- }
-}
-
-static void
-ecore_string_free_cb(void *data)
-{
- Ecore_String *str;
-
- str = data;
- FREE(str);
-}
projects / profile / ivi / ecore.git / commitdiff