/* dict_cursor - iterators over dictionnaries */
-/* Authors: Martin Quinson */
-/* Copyright (C) 2003,2004 Martin Quinson. */
+/* Copyright (c) 2003, 2004 Martin Quinson. 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. */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
#include "xbt/misc.h"
+#include "xbt/ex.h"
#include "dict_private.h"
#include <string.h> /* strlen() */
-GRAS_LOG_EXTERNAL_CATEGORY(dict);
-GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(dict_cursor,dict,"To traverse dictionaries");
+XBT_LOG_EXTERNAL_CATEGORY(xbt_dict);
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_dict_cursor,xbt_dict,"To traverse dictionaries");
/*####[ Dict cursor functions ]#############################################*/
/* To traverse (simple) dicts */
/* Don't add or remove entries to the dict while traversing !!! */
/*###########################################################################*/
-struct gras_dict_cursor_ {
+struct xbt_dict_cursor_ {
/* we store all level encountered until here, to backtrack on next() */
- gras_dynar_t *keys;
- gras_dynar_t *key_lens;
- int pos;
- int pos_len;
- gras_dictelm_t *head;
+ xbt_dynar_t keys;
+ xbt_dynar_t key_lens;
+ int pos;
+ int pos_len;
+ xbt_dictelm_t head;
};
-static _GRAS_INLINE void
-_cursor_push_keys(gras_dict_cursor_t *p_cursor,
- gras_dictelm_t *p_elm);
+static _XBT_INLINE void
+_cursor_push_keys(xbt_dict_cursor_t p_cursor,
+ xbt_dictelm_t p_elm);
-#undef gras_dict_CURSOR_DEBUG
-/*#define gras_dict_CURSOR_DEBUG 1*/
+#undef xbt_dict_CURSOR_DEBUG
+/*#define xbt_dict_CURSOR_DEBUG 1*/
-/**
- * gras_dict_cursor_new:
- *
- * @head: the head of the dict
- * @cursor: the curent position in the dict
- *
- * Structure creator
+/** @brief Creator
+ * @param head the dict
*/
-gras_dict_cursor_t *
-gras_dict_cursor_new(const gras_dict_t *p_head) {
- gras_error_t errcode = no_error;
- gras_dict_cursor_t *res = NULL;
-
- res = gras_new(gras_dict_cursor_t,1);
- res->keys = gras_dynar_new(sizeof(char **), NULL);
- res->key_lens = gras_dynar_new(sizeof(int *), NULL);
+xbt_dict_cursor_t
+xbt_dict_cursor_new(const xbt_dict_t head) {
+ xbt_dict_cursor_t res = NULL;
+
+ res = xbt_new(s_xbt_dict_cursor_t,1);
+ res->keys = xbt_dynar_new(sizeof(char **), NULL);
+ res->key_lens = xbt_dynar_new(sizeof(int *), NULL);
res->pos = 0;
res->pos_len = 0;
- res->head = p_head ? p_head->head : NULL;
+ res->head = head ? head->head : NULL;
- gras_dict_cursor_rewind(res);
+ xbt_dict_cursor_rewind(res);
return res;
}
/**
- * gras_dict_cursor_free:
- *
- * @cursor: poor victim
- *
- * Structure destructor
+ * @brief Destructor
+ * @param cursor poor victim
*/
void
-gras_dict_cursor_free(gras_dict_cursor_t *p_cursor) {
- if (p_cursor) {
- gras_dynar_free(p_cursor->keys);
- gras_dynar_free(p_cursor->key_lens);
- memset(p_cursor, 0, sizeof(gras_dict_cursor_t));
- gras_free(p_cursor);
+xbt_dict_cursor_free(xbt_dict_cursor_t *cursor) {
+ if (*cursor) {
+ xbt_dynar_free(&((*cursor)->keys));
+ xbt_dynar_free(&((*cursor)->key_lens));
+ free(*cursor);
+ *cursor = NULL;
}
}
-/**
- * __cursor_not_null:
- *
+/*
* Sanity check to see if the head contains something
*/
-static _GRAS_INLINE
-gras_error_t
-__cursor_not_null(gras_dict_cursor_t *p_cursor) {
-
- gras_assert0(p_cursor, "Null cursor");
+static _XBT_INLINE
+void
+__cursor_not_null(xbt_dict_cursor_t cursor) {
- if (!p_cursor->head) {
- return mismatch_error;
- }
+ xbt_assert0(cursor, "Null cursor");
- return no_error;
+ if (!cursor->head)
+ THROW0(arg_error,0,"Null headed cursor");
}
-static _GRAS_INLINE
+static _XBT_INLINE
void
-_cursor_push_keys(gras_dict_cursor_t *p_cursor,
- gras_dictelm_t *p_elm) {
- gras_error_t errcode = no_error;
- gras_dictelm_t *p_child = NULL;
+_cursor_push_keys(xbt_dict_cursor_t cursor,
+ xbt_dictelm_t elm) {
+ xbt_dictelm_t child = NULL;
int i = 0;
static volatile int count = 0; /* ??? */
- CDEBUG1(dict_cursor, "Push childs of %p in the cursor", (void*)p_elm);
+ CDEBUG3(xbt_dict_cursor, "Push childs of %p (%.*s) in the cursor", (void*)elm, elm->key_len, elm->key);
- if (p_elm->content) {
- gras_dynar_push(p_cursor->keys, &p_elm->key );
- gras_dynar_push(p_cursor->key_lens, &p_elm->key_len);
+ if (!elm->internal) {
+ xbt_dynar_push(cursor->keys, &elm->key );
+ xbt_dynar_push(cursor->key_lens, &elm->key_len);
count++;
}
- gras_dynar_foreach(p_elm->sub, i, p_child) {
- if (p_child)
- _cursor_push_keys(p_cursor, p_child);
+ xbt_dynar_foreach(elm->sub, i, child) {
+ if (child)
+ _cursor_push_keys(cursor, child);
}
- CDEBUG1(dict_cursor, "Count = %d", count);
+ CDEBUG1(xbt_dict_cursor, "Count = %d", count);
}
-/**
- * gras_dict_cursor_rewind:
- * @cursor: the cursor
- * @Returns: gras_error_t
- *
- * back to the first element
- */
+/** @brief Reinitialize the cursor. Mandatory after removal or add in dict. */
void
-gras_dict_cursor_rewind(gras_dict_cursor_t *p_cursor) {
- gras_error_t errcode = no_error;
+xbt_dict_cursor_rewind(xbt_dict_cursor_t cursor) {
- CDEBUG0(dict_cursor, "gras_dict_cursor_rewind");
- gras_assert(p_cursor);
+ CDEBUG0(xbt_dict_cursor, "xbt_dict_cursor_rewind");
+ xbt_assert(cursor);
- gras_dynar_reset(p_cursor->keys);
- gras_dynar_reset(p_cursor->key_lens);
+ xbt_dynar_reset(cursor->keys);
+ xbt_dynar_reset(cursor->key_lens);
- if (!p_cursor->head)
+ if (!cursor->head)
return ;
- _cursor_push_keys(p_cursor, p_cursor->head);
+ _cursor_push_keys(cursor, cursor->head);
- gras_dynar_cursor_first(p_cursor->keys, &p_cursor->pos );
- gras_dynar_cursor_first(p_cursor->key_lens, &p_cursor->pos_len);
+ xbt_dynar_cursor_first(cursor->keys, &cursor->pos );
+ xbt_dynar_cursor_first(cursor->key_lens, &cursor->pos_len);
}
/**
- * gras_dict_cursor_first:
- * @dict: on what to let the cursor iterate
- * @cursor: dest address
+ * @brief Create the cursor if it does not exists. Rewind it in any case.
*
- * Create the cursor if it does not exists. Rewind it in any case.
+ * @param dict on what to let the cursor iterate
+ * @param[out] cursor dest address
*/
-void gras_dict_cursor_first (const gras_dict_t *dict,
- gras_dict_cursor_t **cursor){
+void xbt_dict_cursor_first (const xbt_dict_t dict,
+ xbt_dict_cursor_t *cursor){
if (!*cursor) {
DEBUG0("Create the cursor on first use");
- *cursor=gras_dict_cursor_new(dict);
+ *cursor=xbt_dict_cursor_new(dict);
}
- gras_dict_cursor_rewind(*cursor);
+ xbt_dict_cursor_rewind(*cursor);
}
/**
- * gras_dict_cursor_step:
- * @cursor: the cursor
- *
- * Move to the next element.
+ * \brief Move to the next element.
*/
void
-gras_dict_cursor_step(gras_dict_cursor_t *p_cursor) {
- gras_assert(p_cursor);
-
- gras_dynar_cursor_step(p_cursor->keys, &p_cursor->pos);
- gras_dynar_cursor_step(p_cursor->key_lens, &p_cursor->pos_len);
+xbt_dict_cursor_step(xbt_dict_cursor_t cursor) {
+ xbt_assert(cursor);
+
+ DEBUG2("step cursor. Current=%.*s",
+ xbt_dynar_get_as(cursor->key_lens,cursor->pos_len,int),
+ xbt_dynar_get_as(cursor->keys,cursor->pos,char *));
+ xbt_dynar_cursor_step(cursor->keys, &cursor->pos);
+ xbt_dynar_cursor_step(cursor->key_lens, &cursor->pos_len);
}
/**
- * gras_dict_cursor_get_or_free:
- * @cursor: the cursor
- * @Returns: true if it's ok, false if there is no more data
+ * @brief Get current data, or free the cursor if there is no data left
*
- * Get current data
+ * @returns true if it's ok, false if there is no more data
*/
int
-gras_dict_cursor_get_or_free(gras_dict_cursor_t **cursor,
- char **key,
- void **data) {
- gras_error_t errcode = no_error;
- int key_len = 0;
+xbt_dict_cursor_get_or_free(xbt_dict_cursor_t *cursor,
+ char **key,
+ void **data) {
+ int key_len = 0;
+ xbt_ex_t e;
if (!cursor || !(*cursor))
return FALSE;
- if (gras_dynar_length((*cursor)->keys) <= (*cursor)->pos) {
- gras_dict_cursor_free(*cursor);
- *cursor=NULL;
+ if (xbt_dynar_length((*cursor)->keys) <= (*cursor)->pos) {
+ xbt_dict_cursor_free(cursor);
return FALSE;
}
- gras_dynar_get((*cursor)->keys, (*cursor)->pos, key );
- gras_dynar_get((*cursor)->key_lens, (*cursor)->pos_len, &key_len);
-
- errcode = gras_dictelm_get_ext((*cursor)->head, *key, key_len, data);
- if (errcode == mismatch_error) {
- gras_dict_cursor_free(*cursor);
- *cursor=NULL;
- return FALSE;
+ *key = xbt_dynar_get_as((*cursor)->keys, (*cursor)->pos, char*);
+ key_len = xbt_dynar_get_as((*cursor)->key_lens, (*cursor)->pos_len, int);
+
+ TRY {
+ *data = xbt_dictelm_get_ext((*cursor)->head, *key, key_len);
+ } CATCH(e) {
+ if (e.category == mismatch_error) {
+ xbt_dict_cursor_free(cursor);
+ xbt_ex_free(e);
+ return FALSE;
+ }
+ RETHROW;
}
-
- gras_assert1(errcode == no_error,
- "Unexpected problem while retrieving the content of cursor. Got %s",
- gras_error_name(errcode));
-
return TRUE;
}
/**
- * gras_dict_cursor_get_key:
- * @cursor: the cursor
- * @key: the current element
- * @Returns: gras_error_t
- *
- * Get current key
+ * @brief Get current key
+ * @param cursor: the cursor
+ * @returns the current key
*/
-gras_error_t
-gras_dict_cursor_get_key(gras_dict_cursor_t *p_cursor,
- /*OUT*/char **key) {
- gras_error_t errcode = no_error;
-
- TRY(__cursor_not_null(p_cursor));
+char *
+xbt_dict_cursor_get_key(xbt_dict_cursor_t cursor) {
+ __cursor_not_null(cursor);
- gras_dynar_get(p_cursor->keys, p_cursor->pos - 1, key);
-
- return errcode;
+ return xbt_dynar_get_as(cursor->keys, cursor->pos - 1, char*);
}
/**
- * gras_dict_cursor_get_data:
- * @cursor: the cursor
- *
- * Get current data
+ * @brief Get current data
+ * @param cursor the cursor
+ * @returns the current data
*/
-gras_error_t
-gras_dict_cursor_get_data(gras_dict_cursor_t *p_cursor,
- /*OUT*/void **data) {
- gras_error_t errcode = no_error;
+void *
+xbt_dict_cursor_get_data(xbt_dict_cursor_t cursor) {
char *key = NULL;
int key_len = 0;
- TRY(__cursor_not_null(p_cursor));
-
- gras_dynar_get(p_cursor->keys, p_cursor->pos-1, &key );
- gras_dynar_get(p_cursor->key_lens, p_cursor->pos_len-1, &key_len);
+ __cursor_not_null(cursor);
- TRY(gras_dictelm_get_ext(p_cursor->head, key, key_len, data));
+ key = xbt_dynar_get_as(cursor->keys, cursor->pos-1, char *);
+ key_len = xbt_dynar_get_as(cursor->key_lens, cursor->pos_len-1, int);
- return errcode;
+ return xbt_dictelm_get_ext(cursor->head, key, key_len);
}
