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restore AST_LIST_HEAD_INIT (with no users in the tree right now)

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update ast_mutex_init to allow mutexes that are all zero bytes to be initialized (in the case of a dynamically-allocated structure containing a mutex)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@29727 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2006-05-23 17:04:07 +00:00
parent 5d51260c36
commit 8d74f0ebe6
2 changed files with 28 additions and 6 deletions
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13
include/asterisk/linkedlists.h
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@@ -359,6 +359,19 @@ struct { \
*/
#define AST_LIST_TRAVERSE_SAFE_END }
/*!
\brief Initializes a list head structure.
\param head This is a pointer to the list head structure
This macro initializes a list head structure by setting the head
entry to \a NULL (empty list) and recreating the embedded lock.
*/
#define AST_LIST_HEAD_INIT(head) { \
(head)->first = NULL; \
(head)->last = NULL; \
ast_mutex_init(&(head)->lock); \
}
/*!
\brief Destroys a list head structure.
\param head This is a pointer to the list head structure