[Freeswitch-dev] upgrade a rdlock to wrlock

[Christopher Rienzo]

Unlock the read lock and then lock as a write lock.

On Aug 17, 2011 8:20 PM, "Seven Du" <dujinfang at gmail.com> wrote:

 Hi,


Just wondering how to upgrade a read lock to a write lock, say I do a
find_or_create_item_in_queue()

switch_thread_rwlock_rdlock(lock);

find an item from queue, if not found, create one

switch_thread_rwlock_upgrade_to_wrlock(lock);

 write
 switch_thread_rwlock_unlock(lock);

Thanks
-- 
Seven Du
About: http://about.me/dujinfang
Blog: http://www.dujinfang.com
Proj:  http://www.freeswitch.org.cn
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