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https://github.com/rapid7/metasploit-framework
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Add a list_shift() function to the common linked list code.
git-svn-id: file:///home/svn/framework3/trunk@10052 4d416f70-5f16-0410-b530-b9f4589650da
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30
external/source/meterpreter/source/common/list.c
vendored
30
external/source/meterpreter/source/common/list.c
vendored
@ -2,9 +2,9 @@
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/*
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* An implementation of a simple thread safe double linked list structure. Can be used as either
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* a stack (via pop/push) or an array (via get/add/insert/remove). If performing a group of
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* actions on a list based on results from list actions, acquire the list lock before the group
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* of actions and release lock when done.
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* a stack (via pop/push), a queue (via push/shift) or an array (via get/add/insert/remove). If
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* performing a group of actions on a list based on results from list actions, acquire the list
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* lock before the group of actions and release lock when done.
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*/
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/*
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@ -308,5 +308,29 @@ LPVOID list_pop( LIST * list )
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lock_release( list->lock );
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return data;
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}
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/*
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* Pop a data value off the start of the list.
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*/
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LPVOID list_shift( LIST * list )
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{
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LPVOID data = NULL;
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if( list == NULL )
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return NULL;
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lock_acquire( list->lock );
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if( list->start != NULL )
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{
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data = list->start->data;
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list_remove_node( list, list->start );
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}
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lock_release( list->lock );
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return data;
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}
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@ -38,6 +38,8 @@ BOOL list_push( LIST * list, LPVOID data );
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LPVOID list_pop( LIST * list );
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LPVOID list_shift( LIST * list );
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/*****************************************************************************************/
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#endif
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