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Merged revisions 201261 via svnmerge from

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https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r201261 | kpfleming | 2009-06-17 07:03:25 -0500 (Wed, 17 Jun 2009) | 9 lines
  
  Correct AST_LIST_APPEND_LIST behavior when list to be appended is empty.
  
  When the list to be appended is empty, and the list to be appended to is *not*,
  AST_LIST_APPEND_LIST would actually cause the target list to become broken,
  and no longer have a pointer to its last entry. This patch fixes the problem.
  
  (reported by Stanislaw Pitucha on the asterisk-dev mailing list)
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@201262 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2009-06-17 12:04:17 +00:00
parent 9a66b1dcdf
commit 962bd7ab26
1 changed files with 8 additions and 5 deletions
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13
include/asterisk/linkedlists.h
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@@ -765,15 +765,18 @@ struct { \
* calling this macro (the list entries are \b moved to the target list).
*/
#define AST_LIST_APPEND_LIST(head, list, field) do { \
if (!(head)->first) { \
if (!(list)->first) { \
break; \
} \
if (!(head)->first) { \
(head)->first = (list)->first; \
(head)->last = (list)->last; \
} else { \
} else { \
(head)->last->field.next = (list)->first; \
(head)->last = (list)->last; \
} \
(list)->first = NULL; \
(list)->last = NULL; \
} \
(list)->first = NULL; \
(list)->last = NULL; \
} while (0)
#define AST_RWLIST_APPEND_LIST AST_LIST_APPEND_LIST