/* dynar - a generic dynamic array */
-/* Copyright (c) 2004, 2005, 2006, 2007, 2009, 2010. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2004-2018. 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. */
-#ifndef _XBT_DYNAR_H
-#define _XBT_DYNAR_H
+#ifndef XBT_DYNAR_H
+#define XBT_DYNAR_H
#include <string.h> /* memcpy */
-#include "xbt/misc.h" /* SG_BEGIN_DECL */
-#include "xbt/function_types.h"
+#include <xbt/base.h> /* SG_BEGIN_DECL */
+#include <xbt/function_types.h>
SG_BEGIN_DECL()
* @brief DynArr are dynamically sized vector which may contain any type of variables.
*
* These are the SimGrid version of the dynamically size arrays, which all C programmer recode one day or another.
- *
- * For performance concerns, the content of DynArr must be homogeneous (in
- * contrary to dictionnaries -- see the \ref XBT_dict section). You thus
- * have to provide the function which will be used to free the content at
- * structure creation (of type void_f_ppvoid_t or void_f_pvoid_t).
+ *
+ * For performance concerns, the content of DynArr must be homogeneous (in contrary to dictionnaries -- see the
+ * \ref XBT_dict section). You thus have to provide the function which will be used to free the content at
+ * structure creation (of type void_f_pvoid_t).
+ *
+ * @deprecated If you are using C++, you might want to use `std::vector` instead.
*
* \section XBT_dynar_exscal Example with scalar
- * \dontinclude dynar.c
+ * \dontinclude dynar.cpp
*
* \skip Vars_decl
* \skip dyn
* \until xbt_dynar_free
*
* \section XBT_dynar_exptr Example with pointed data
- *
+ *
* \skip test_dynar_string
* \skip dynar_t
* \until s2
* \skip end_of_doxygen
* \until }
*
+ * Note that if you use dynars to store pointed data, the xbt_dynar_search(), xbt_dynar_search_or_negative() and
+ * xbt_dynar_member() won't be for you. Instead of comparing your pointed elements, they compare the pointer to them.
+ * See the documentation of xbt_dynar_search() for more info.
*/
/** @defgroup XBT_dynar_cons Dynar constructor and destructor
* @ingroup XBT_dynar
/** \brief Dynar data type (opaque type) */
typedef struct xbt_dynar_s *xbt_dynar_t;
-
-XBT_PUBLIC(xbt_dynar_t) xbt_dynar_new(const unsigned long elm_size,
- void_f_pvoid_t const free_f);
-XBT_PUBLIC(xbt_dynar_t) xbt_dynar_new_sync(const unsigned long elm_size,
- void_f_pvoid_t const free_f);
-XBT_PUBLIC(void) xbt_dynar_free(xbt_dynar_t * dynar);
-XBT_PUBLIC(void) xbt_dynar_free_voidp(void *dynar);
-XBT_PUBLIC(void) xbt_dynar_free_container(xbt_dynar_t * dynar);
-XBT_PUBLIC(void) xbt_dynar_shrink(xbt_dynar_t dynar, int empty_slots);
-XBT_PUBLIC(void) xbt_dynar_dump(xbt_dynar_t dynar);
+XBT_PUBLIC xbt_dynar_t xbt_dynar_new(const unsigned long elm_size, void_f_pvoid_t const free_f);
+XBT_PUBLIC void xbt_dynar_init(xbt_dynar_t dynar, const unsigned long elmsize, void_f_pvoid_t const free_f);
+XBT_PUBLIC void xbt_dynar_free(xbt_dynar_t* dynar);
+XBT_PUBLIC void xbt_dynar_free_voidp(void* dynar);
+XBT_PUBLIC void xbt_dynar_free_container(xbt_dynar_t* dynar);
+XBT_PUBLIC void xbt_dynar_free_data(xbt_dynar_t dynar);
+XBT_PUBLIC void xbt_dynar_shrink(xbt_dynar_t dynar, int empty_slots);
+XBT_PUBLIC void xbt_dynar_dump(xbt_dynar_t dynar);
/** @} */
/** @defgroup XBT_dynar_array Dynar as a regular array
* @{
*/
-XBT_PUBLIC(void) xbt_dynar_get_cpy(const xbt_dynar_t dynar,
- const unsigned long idx,
- void *const dst);
-XBT_PUBLIC(void) xbt_dynar_set(xbt_dynar_t dynar, const int idx,
- const void *src);
-XBT_PUBLIC(void) xbt_dynar_replace(xbt_dynar_t dynar,
- const unsigned long idx,
- const void *object);
+XBT_PUBLIC void xbt_dynar_get_cpy(const xbt_dynar_t dynar, const unsigned long idx, void* const dst);
+XBT_PUBLIC void xbt_dynar_set(xbt_dynar_t dynar, const int idx, const void* src);
+XBT_PUBLIC void xbt_dynar_replace(xbt_dynar_t dynar, const unsigned long idx, const void* object);
-XBT_PUBLIC(void) xbt_dynar_insert_at(xbt_dynar_t const dynar,
- const int idx, const void *src);
-XBT_PUBLIC(void) xbt_dynar_remove_at(xbt_dynar_t const dynar,
- const int idx, void *const dst);
+XBT_PUBLIC void xbt_dynar_insert_at(xbt_dynar_t const dynar, const int idx, const void* src);
+XBT_PUBLIC void xbt_dynar_remove_at(xbt_dynar_t const dynar, const int idx, void* const dst);
+XBT_PUBLIC void xbt_dynar_remove_n_at(xbt_dynar_t const dynar, const unsigned int n, const int idx);
-XBT_PUBLIC(unsigned int) xbt_dynar_search(xbt_dynar_t const dynar, void *elem);
-XBT_PUBLIC(signed int) xbt_dynar_search_or_negative(xbt_dynar_t const dynar, void *const elem);
-XBT_PUBLIC(int) xbt_dynar_member(xbt_dynar_t const dynar, void *elem);
-XBT_PUBLIC(void) xbt_dynar_sort(xbt_dynar_t const dynar,
- int_f_cpvoid_cpvoid_t compar_fn);
-XBT_PUBLIC(void) xbt_dynar_three_way_partition(xbt_dynar_t const dynar,
- int_f_pvoid_t color);
-XBT_PUBLIC(int) xbt_dynar_compare(xbt_dynar_t d1, xbt_dynar_t d2,
- int(*compar)(const void *, const void *));
-XBT_PUBLIC(void *) xbt_dynar_to_array (xbt_dynar_t dynar);
+XBT_PUBLIC unsigned int xbt_dynar_search(xbt_dynar_t const dynar, void* elem);
+XBT_PUBLIC signed int xbt_dynar_search_or_negative(xbt_dynar_t const dynar, void* const elem);
+XBT_PUBLIC int xbt_dynar_member(xbt_dynar_t const dynar, void* elem);
+XBT_PUBLIC void xbt_dynar_sort(xbt_dynar_t const dynar, int_f_cpvoid_cpvoid_t compar_fn);
+XBT_PUBLIC xbt_dynar_t xbt_dynar_sort_strings(xbt_dynar_t dynar);
+XBT_PUBLIC int xbt_dynar_compare(xbt_dynar_t d1, xbt_dynar_t d2, int (*compar)(const void*, const void*));
+XBT_PUBLIC void* xbt_dynar_to_array(xbt_dynar_t dynar);
/** @} */
/** @defgroup XBT_dynar_misc Dynar miscellaneous functions
* @{
*/
-XBT_PUBLIC(unsigned long) xbt_dynar_length(const xbt_dynar_t dynar);
-XBT_PUBLIC(int) xbt_dynar_is_empty(const xbt_dynar_t dynar);
-XBT_PUBLIC(void) xbt_dynar_reset(xbt_dynar_t const dynar);
-XBT_PUBLIC(void) xbt_dynar_merge(xbt_dynar_t *d1, xbt_dynar_t *d2);
+XBT_PUBLIC unsigned long xbt_dynar_length(const xbt_dynar_t dynar);
+XBT_PUBLIC int xbt_dynar_is_empty(const xbt_dynar_t dynar);
+XBT_PUBLIC void xbt_dynar_reset(xbt_dynar_t const dynar);
+XBT_PUBLIC void xbt_dynar_merge(xbt_dynar_t* d1, xbt_dynar_t* d2);
/** @} */
/** @defgroup XBT_dynar_perl Perl-like use of dynars
* @{
*/
-XBT_PUBLIC(void) xbt_dynar_push(xbt_dynar_t const dynar, const void *src);
-XBT_PUBLIC(void) xbt_dynar_pop(xbt_dynar_t const dynar, void *const dst);
-XBT_PUBLIC(void) xbt_dynar_unshift(xbt_dynar_t const dynar,
- const void *src);
-XBT_PUBLIC(void) xbt_dynar_shift(xbt_dynar_t const dynar, void *const dst);
-XBT_PUBLIC(void) xbt_dynar_map(const xbt_dynar_t dynar,
- void_f_pvoid_t const op);
+XBT_PUBLIC void xbt_dynar_push(xbt_dynar_t const dynar, const void* src);
+XBT_PUBLIC void xbt_dynar_pop(xbt_dynar_t const dynar, void* const dst);
+XBT_PUBLIC void xbt_dynar_unshift(xbt_dynar_t const dynar, const void* src);
+XBT_PUBLIC void xbt_dynar_shift(xbt_dynar_t const dynar, void* const dst);
+XBT_PUBLIC void xbt_dynar_map(const xbt_dynar_t dynar, void_f_pvoid_t const op);
/** @} */
/** @defgroup XBT_dynar_ctn Direct manipulation to the dynars content
* @{
*/
-XBT_PUBLIC(void *) xbt_dynar_set_at_ptr(const xbt_dynar_t dynar,
- const unsigned long idx);
-XBT_PUBLIC(void *) xbt_dynar_get_ptr(const xbt_dynar_t dynar,
- const unsigned long idx);
-XBT_PUBLIC(void *) xbt_dynar_insert_at_ptr(xbt_dynar_t const dynar,
- const int idx);
-XBT_PUBLIC(void *) xbt_dynar_push_ptr(xbt_dynar_t const dynar);
-XBT_PUBLIC(void *) xbt_dynar_pop_ptr(xbt_dynar_t const dynar);
+XBT_PUBLIC void* xbt_dynar_set_at_ptr(const xbt_dynar_t dynar, const unsigned long idx);
+XBT_PUBLIC void* xbt_dynar_get_ptr(const xbt_dynar_t dynar, const unsigned long idx);
+XBT_PUBLIC void* xbt_dynar_insert_at_ptr(xbt_dynar_t const dynar, const int idx);
+XBT_PUBLIC void* xbt_dynar_push_ptr(xbt_dynar_t const dynar);
+XBT_PUBLIC void* xbt_dynar_pop_ptr(xbt_dynar_t const dynar);
/** @} */
/** @defgroup XBT_dynar_speed Speed optimized access to dynars of scalars
* @ingroup XBT_dynar
*
- * While the other functions use a memcpy to retrieve the content into the
- * user provided area, those ones use a regular affectation. It only works
- * for scalar values, but should be a little faster.
+ * While the other functions use a memcpy to retrieve the content into the user provided area, those ones use a
+ * regular affectation. It only works for scalar values, but should be a little faster.
*
* @{
*/
- /** @brief Quick retrieval of scalar content
+ /** @brief Quick retrieval of scalar content
* @hideinitializer */
# define xbt_dynar_get_as(dynar,idx,type) \
(*(type*)xbt_dynar_get_ptr((dynar),(idx)))
* @hideinitializer */
# define xbt_dynar_set_as(dynar,idx,type,val) \
(*(type*)xbt_dynar_set_at_ptr((dynar),(idx))) = val
- /** @brief Quick retrieval of scalar content
+ /** @brief Quick retrieval of scalar content
* @hideinitializer */
# define xbt_dynar_getlast_as(dynar,type) \
(*(type*)xbt_dynar_get_ptr((dynar),xbt_dynar_length(dynar)-1))
- /** @brief Quick retrieval of scalar content
+ /** @brief Quick retrieval of scalar content
* @hideinitializer */
# define xbt_dynar_getfirst_as(dynar,type) \
(*(type*)xbt_dynar_get_ptr((dynar),0))
- /** @brief Quick insertion of scalar content
+ /** @brief Quick insertion of scalar content
* @hideinitializer */
# define xbt_dynar_insert_at_as(dynar,idx,type,value) \
*(type*)xbt_dynar_insert_at_ptr(dynar,idx)=value
- /** @brief Quick insertion of scalar content
+ /** @brief Quick insertion of scalar content
* @hideinitializer */
# define xbt_dynar_push_as(dynar,type,value) \
*(type*)xbt_dynar_push_ptr(dynar)=value
/** @defgroup XBT_dynar_cursor Cursors on dynar
* @ingroup XBT_dynar
*
- * Cursors are used to iterate over the structure. Never add elements to the
- * DynArr during the traversal. To remove elements, use the
- * xbt_dynar_cursor_rm() function.
+ * Cursors are used to iterate over the structure. Never add elements to the DynArr during the traversal. To remove
+ * elements, use the xbt_dynar_cursor_rm() function.
*
- * Do not call these functions directly, but only the xbt_dynar_foreach macro.
- *
- * For synchronized dynars, the dynar will be locked during the whole
- * loop and it will get unlocked automatically if you traverse all
- * elements. If you want to break the loop before the end, make sure
- * to call xbt_dynar_cursor_unlock() before the <tt>break;</tt>
+ * Do not call these function directly, but only within the xbt_dynar_foreach macro.
*
* @{
*/
-XBT_PUBLIC(void) xbt_dynar_cursor_rm(xbt_dynar_t dynar,
- unsigned int *const cursor);
-XBT_PUBLIC(void) xbt_dynar_cursor_unlock(xbt_dynar_t dynar);
+XBT_PUBLIC void xbt_dynar_cursor_rm(xbt_dynar_t dynar, unsigned int* const cursor);
-/* do not use this structure internals directly, but use the public interface
- * This was made public to allow:
- * - the inlining of the foreach elements
- * - sending such beasts over the network
+/*
+ * \warning DO NOT USE THIS STRUCTURE DIRECTLY! Instead, use the public interface:
+ * This was made public to allow:
+ * - the inlining of the foreach elements
+ * - sending such beasts over the network
+ *
+ * \see xbt_dynar_length()
*/
-
-#include "xbt/synchro_core.h"
typedef struct xbt_dynar_s {
unsigned long size;
unsigned long used;
unsigned long elmsize;
void *data;
void_f_pvoid_t free_f;
- xbt_mutex_t mutex;
} s_xbt_dynar_t;
-static XBT_INLINE void
-_xbt_dynar_cursor_first(const xbt_dynar_t dynar,
- unsigned int *const cursor)
-{
- /* don't test for dynar!=NULL. The segfault would tell us */
- if (dynar->mutex) /* ie _dynar_lock(dynar) but not public */
- xbt_mutex_acquire(dynar->mutex);
-
- //XBT_DEBUG("Set cursor on %p to the first position", (void *) dynar);
- *cursor = 0;
-}
-
-static XBT_INLINE int
-_xbt_dynar_cursor_get(const xbt_dynar_t dynar,
- unsigned int idx, void *const dst)
+static inline int _xbt_dynar_cursor_get(const xbt_dynar_t dynar, unsigned int idx, void* const dst)
{
+ if (!dynar) /* iterating over a NULL dynar is a no-op */
+ return 0;
if (idx >= dynar->used) {
//XBT_DEBUG("Cursor on %p already on last elem", (void *) dynar);
- if (dynar->mutex) /* unlock */
- xbt_mutex_release(dynar->mutex);
- return FALSE;
+ return 0;
}
// XBT_DEBUG("Cash out cursor on %p at %u", (void *) dynar, *idx);
- memcpy(dst, ((char *) dynar->data) + idx * dynar->elmsize,
- dynar->elmsize);
+ memcpy(dst, ((char *) dynar->data) + idx * dynar->elmsize, dynar->elmsize);
- return TRUE;
+ return 1;
}
-
-
-/** @brief Iterates over the whole dynar.
- *
+/** @brief Iterates over the whole dynar.
+ *
* @param _dynar what to iterate over
* @param _cursor an integer used as cursor
* @param _data
* @hideinitializer
*
- * \note An example of usage:
+ * Here is an example of usage:
* \code
xbt_dynar_t dyn;
unsigned int cpt;
printf("Seen %s\n",str);
}
\endcode
+ *
+ * Note that underneath, that's a simple for loop with no real black magic involved. It's perfectly safe to interrupt
+ * a foreach with a break or a return statement.
*/
#define xbt_dynar_foreach(_dynar,_cursor,_data) \
- if(_dynar) \
- for (_xbt_dynar_cursor_first(_dynar,&(_cursor)) ; \
- _xbt_dynar_cursor_get(_dynar,_cursor,&_data) ; \
+ for ( (_cursor) = 0 ; \
+ _xbt_dynar_cursor_get(_dynar,_cursor,&_data) ; \
+ (_cursor)++ )
+
+#ifndef __cplusplus
+#define xbt_dynar_foreach_ptr(_dynar,_cursor,_ptr) \
+ for ((_cursor) = 0 ; \
+ (_ptr = _cursor < _dynar->used ? xbt_dynar_get_ptr(_dynar,_cursor) : NULL) ; \
(_cursor)++ )
-
+#else
+#define xbt_dynar_foreach_ptr(_dynar,_cursor,_ptr) \
+ for ((_cursor) = 0 ; \
+ (_ptr = _cursor < _dynar->used ? (decltype(_ptr)) xbt_dynar_get_ptr(_dynar,_cursor) : NULL) ; \
+ (_cursor)++ )
+#endif
/** @} */
-
SG_END_DECL()
-#endif /* _XBT_DYNAR_H */
+
+#endif /* XBT_DYNAR_H */