*/
typedef void tal_t;
-/**
- * TAL_TAKE - fake tal_t to indicate function will own arguments.
- *
- * Various functions take a context on which to allocate: if you use
- * TAL_TAKE there instead, it means that the argument(s) are actually
- * tal objects. The returned value will share the same parent; it may
- * even be the same pointer as the arguments. The arguments themselves
- * will be reused, freed, or made a child of the return value: they are
- * no longer valid for external use.
- */
-#define TAL_TAKE ((tal_t *)-2L)
-
/**
* tal - basic allocator function
* @ctx: NULL, or tal allocated object to be parent.
*
* This may need to perform an allocation, in which case it may fail; thus
* it can return NULL, otherwise returns @ptr.
- *
- * Note: weird macro avoids gcc's 'warning: value computed is not used'.
*/
#if HAVE_STATEMENT_EXPR
+/* Weird macro avoids gcc's 'warning: value computed is not used'. */
#define tal_steal(ctx, ptr) \
({ (tal_typeof(ptr) tal_steal_((ctx),(ptr))); })
#else
/**
* tal_dup - duplicate an array.
- * @ctx: NULL, or tal allocated object to be parent (or TAL_TAKE).
+ * @ctx: The tal allocated object to be parent of the result (may be NULL).
* @type: the type (should match type of @p!)
- * @p: the array to copy
+ * @p: the array to copy (or resized & reparented if take())
* @n: the number of sizeof(type) entries to copy.
* @extra: the number of extra sizeof(type) entries to allocate.
*/
/**
* tal_strdup - duplicate a string
- * @ctx: NULL, or tal allocated object to be parent (or TAL_TAKE).
- * @p: the string to copy
+ * @ctx: NULL, or tal allocated object to be parent.
+ * @p: the string to copy (can be take()).
*/
char *tal_strdup(const tal_t *ctx, const char *p);
/**
* tal_strndup - duplicate a limited amount of a string.
- * @ctx: NULL, or tal allocated object to be parent (or TAL_TAKE).
- * @p: the string to copy
+ * @ctx: NULL, or tal allocated object to be parent.
+ * @p: the string to copy (can be take()).
* @n: the maximum length to copy.
*
* Always gives a nul-terminated string, with strlen() <= @n.
/**
* tal_asprintf - allocate a formatted string
- * @ctx: NULL, or tal allocated object to be parent (or TAL_TAKE).
- * @fmt: the printf-style format.
- *
- * If @ctx is TAL_TAKE, @fmt is freed and its parent will be the parent
- * of the return value.
+ * @ctx: NULL, or tal allocated object to be parent.
+ * @fmt: the printf-style format (can be take()).
*/
char *tal_asprintf(const tal_t *ctx, const char *fmt, ...) PRINTF_FMT(2,3);
/**
* tal_vasprintf - allocate a formatted string (va_list version)
- * @ctx: NULL, or tal allocated object to be parent (or TAL_TAKE).
- * @fmt: the printf-style format.
+ * @ctx: NULL, or tal allocated object to be parent.
+ * @fmt: the printf-style format (can be take()).
* @va: the va_list containing the format args.
- *
- * If @ctx is TAL_TAKE, @fmt is freed and its parent will be the parent
- * of the return value.
*/
char *tal_vasprintf(const tal_t *ctx, const char *fmt, va_list ap)
PRINTF_FMT(2,0);