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Diffstat (limited to 'ACE/examples/APG/Containers/DLList.cpp')
-rw-r--r-- | ACE/examples/APG/Containers/DLList.cpp | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/ACE/examples/APG/Containers/DLList.cpp b/ACE/examples/APG/Containers/DLList.cpp new file mode 100644 index 00000000000..8c93e5b4039 --- /dev/null +++ b/ACE/examples/APG/Containers/DLList.cpp @@ -0,0 +1,116 @@ +// $Id$ + +#include "ace/OS_Memory.h" +#include "ace/Log_Msg.h" + +// Listing 1 code/ch05 +#include "ace/Containers.h" +#include "DataElement.h" + +// Create a new type of list that can store only DataElements. +typedef ACE_DLList<DataElement> MyList; +// Listing 1 + +// Listing 2 code/ch05 +class ListTest +{ +public: + int run (void); + void displayList (MyList & list); // Display all elements. + void destroyList (MyList& list); // Destroy all elements. +}; +// Listing 2 +// Listing 3 code/ch05 +int +ListTest::run (void) +{ + ACE_TRACE (ACE_TEXT ("ListTest::run")); + + // Create a list and insert 100 elements. + MyList list1; + + for (int i = 0; i < 100; i++) + { + DataElement *element; + ACE_NEW_RETURN (element, DataElement (i), -1); + list1.insert_tail (element); + } + + // Iterate through and display to output. + this->displayList (list1); + + // Create a copy of list1. + MyList list2; + list2 = list1; + + // Iterate over the copy and display it to output. + this->displayList(list2); + + // Get rid of the copy list and all its elements. + // Since both lists had the *same* elements + // this will cause list1 to contain pointers that + // point to data elements that have already been destroyed! + this->destroyList (list2); + + ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("# of live objects: %d\n"), + DataElement::numOfActiveObjects())); + + // The lists themselves are destroyed here. Note that the + // list destructor will destroy copies of whatever data the + // list contained. Since in this case the list contained + // copies of pointers to the data elements these are the + // only thing that gets destroyed here. + return 0; +} +// Listing 3 +// Listing 4 code/ch05 +void +ListTest::destroyList (MyList& list) +{ + ACE_TRACE (ACE_TEXT ("ListTest::destroyList")); + + ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Destroying data elements\n"))); + + // Iterate through and delete all the data elements on the list. + for (ACE_DLList_Iterator<DataElement> iter (list); + !iter.done (); + iter++) + { + DataElement *de = iter.next (); + delete de; + } +} +// Listing 4 +// Listing 5 code/ch05 +void +ListTest::displayList (MyList& list) +{ + ACE_TRACE (ACE_TEXT ("ListTest::displayList")); + + ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Forward iteration\n"))); + ACE_DLList_Iterator<DataElement> iter (list); + while (!iter.done ()) + { + ACE_DEBUG + ((LM_DEBUG, ACE_TEXT ("%d:"), iter.next()->getData())); + iter++; + } + ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("\n"))); + + ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Reverse Iteration \n"))); + ACE_DLList_Reverse_Iterator<DataElement> riter (list); + while (!riter.done ()) + { + ACE_DEBUG + ((LM_DEBUG, ACE_TEXT ("%d:"), riter.next()->getData())); + riter++; + } + ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("\n"))); +} +// Listing 5 +int ACE_TMAIN (int, ACE_TCHAR *[]) +{ + ListTest test; + return test.run (); +} + |