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score: Add _Chain_Initialize_one()

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This commit is contained in:
Sebastian Huber
2016-08-10 08:21:54 +02:00
parent da15db787b
commit 3709987d96
3 changed files with 51 additions and 0 deletions
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27
cpukit/score/include/rtems/score/chainimpl.h
View File

@@ -519,6 +519,33 @@ RTEMS_INLINE_ROUTINE void _Chain_Initialize_empty(
tail->previous = head;
}
/**
* @brief Initializes this chain to contain exactly the specified node.
*
* @param[in] the_chain The chain control.
* @param[in] the_node The one and only node.
*/
RTEMS_INLINE_ROUTINE void _Chain_Initialize_one(
Chain_Control *the_chain,
Chain_Node *the_node
)
{
Chain_Node *head;
Chain_Node *tail;
_Assert( _Chain_Is_node_off_chain( the_node ) );
head = _Chain_Head( the_chain );
tail = _Chain_Tail( the_chain );
the_node->next = tail;
the_node->previous = head;
head->next = the_node;
head->previous = NULL;
tail->previous = the_node;
}
/**
* @brief Extract this node (unprotected).
*

23
testsuites/sptests/spchain/init.c
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@@ -16,6 +16,28 @@
const char rtems_test_name[] = "SPCHAIN";
static void test_chain_init_one(void)
{
Chain_Control chain;
Chain_Node node;
puts( "INIT - Verify _Chain_Initialize_one" );
_Chain_Initialize_node( &node );
_Chain_Initialize_one( &chain, &node );
rtems_test_assert( !_Chain_Is_empty( &chain ) );
rtems_test_assert( !_Chain_Is_node_off_chain( &node ) );
rtems_test_assert( _Chain_Is_first( &node ) );
rtems_test_assert( _Chain_Is_last( &node ) );
rtems_test_assert( _Chain_First( &chain ) == &node );
rtems_test_assert( _Chain_Last( &chain ) == &node );
rtems_test_assert( _Chain_Next( &node ) == _Chain_Tail( &chain ) );
rtems_test_assert( _Chain_Previous( &node ) == _Chain_Head( &chain ) );
_Chain_Extract_unprotected( &node );
rtems_test_assert( _Chain_Is_empty( &chain ) );
}
static void update_registry_and_extract(
Chain_Iterator_registry *reg,
Chain_Node *n
@@ -479,6 +501,7 @@ rtems_task Init(
}
}
test_chain_init_one();
test_chain_first_and_last();
test_chain_with_empty_check();
test_chain_with_notification();

1
testsuites/sptests/spchain/spchain.scn
View File

@@ -1,6 +1,7 @@
*** BEGIN OF TEST SPCHAIN ***
Init - Initialize chain empty
INIT - Verify rtems_chain_insert
INIT - Verify _Chain_Initialize_one
INIT - Verify rtems_chain_is_first
INIT - Verify rtems_chain_is_last
INIT - Verify rtems_chain_append_with_empty_check