Function FreeHashTable

RedEdrDriver/hashcache.c:98–131

VOID FreeHashTable()
{
    ULONG i;
    PHASH_ENTRY entry, tempEntry;

    KIRQL oldIrql;
    KeAcquireSpinLock(&HashTableLock, &oldIrql);

    // Iterate through each bucket in the hash table
    for (i = 0; i < HASH_TABLE_SIZE; i++) {
        entry = HashTable[i];

        // Traverse the linked list in this bucket
        while (entry) {
            tempEntry = entry->Next;

            // Free the associated PROCESS_INFO structure if allocated separately
            if (entry->ProcessInfo) {
                ExFreePoolWithTag(entry->ProcessInfo, 'Proc');
            }

            // Free the hash table entry itself
            ExFreePoolWithTag(entry, 'Hash');

            // Move to the next entry in the list
            entry = tempEntry;
        }

        // Set the bucket to NULL after freeing all entries
        HashTable[i] = NULL;
    }

    KeReleaseSpinLock(&HashTableLock, oldIrql);
}


ULONG HashFunction(HANDLE ProcessId)