Utilisation de listes liées de manière unique

L’exemple suivant utilise la fonction InitializeSListHead pour initialiser une liste liée séparément et la fonction InterlockedPushEntrySList pour insérer 10 éléments. L’exemple utilise la fonction InterlockedPopEntrySList pour supprimer 10 éléments et la fonction InterlockedFlushSList pour vérifier que la liste est vide.

#include <windows.h>
#include <malloc.h>
#include <stdio.h>

// Structure to be used for a list item; the first member is the 
// SLIST_ENTRY structure, and additional members are used for data.
// Here, the data is simply a signature for testing purposes. 


typedef struct _PROGRAM_ITEM {
    SLIST_ENTRY ItemEntry;
    ULONG Signature; 
} PROGRAM_ITEM, *PPROGRAM_ITEM;

int main( )
{
    ULONG Count;
    PSLIST_ENTRY pFirstEntry, pListEntry;
    PSLIST_HEADER pListHead;
    PPROGRAM_ITEM pProgramItem;

    // Initialize the list header to a MEMORY_ALLOCATION_ALIGNMENT boundary.
    pListHead = (PSLIST_HEADER)_aligned_malloc(sizeof(SLIST_HEADER),
       MEMORY_ALLOCATION_ALIGNMENT);
    if( NULL == pListHead )
    {
        printf("Memory allocation failed.\n");
        return -1;
    }
    InitializeSListHead(pListHead);

    // Insert 10 items into the list.
    for( Count = 1; Count <= 10; Count += 1 )
    {
        pProgramItem = (PPROGRAM_ITEM)_aligned_malloc(sizeof(PROGRAM_ITEM),
            MEMORY_ALLOCATION_ALIGNMENT);
        if( NULL == pProgramItem )
        {
            printf("Memory allocation failed.\n");
            return -1;
        }
        pProgramItem->Signature = Count;
        pFirstEntry = InterlockedPushEntrySList(pListHead, 
                       &(pProgramItem->ItemEntry)); 
    }

    // Remove 10 items from the list and display the signature.
    for( Count = 10; Count >= 1; Count -= 1 )
    {
        pListEntry = InterlockedPopEntrySList(pListHead);

        if( NULL == pListEntry )
        {
            printf("List is empty.\n");
            return -1;
        }
  
        pProgramItem = (PPROGRAM_ITEM)pListEntry;
        printf("Signature is %d\n", pProgramItem->Signature);

    // This example assumes that the SLIST_ENTRY structure is the 
    // first member of the structure. If your structure does not 
    // follow this convention, you must compute the starting address 
    // of the structure before calling the free function.

        _aligned_free(pListEntry);
    }

    // Flush the list and verify that the items are gone.
    pListEntry = InterlockedFlushSList(pListHead);
    pFirstEntry = InterlockedPopEntrySList(pListHead);
    if (pFirstEntry != NULL)
    {
        printf("Error: List is not empty.\n");
        return -1;
    }

    _aligned_free(pListHead);

    return 1;
}