private static unsafe void Setup_MallocFixedPageSizeRecoveryTest(out int seed, out IDevice device, out int numBucketsToAdd, out long[] logicalAddresses, out ulong numBytesWritten)
{
TestUtils.DeleteDirectory(TestUtils.MethodTestDir, wait: true);
seed = 123;
var rand1 = new Random(seed);
device = Devices.CreateLogDevice(TestUtils.MethodTestDir + "/MallocFixedPageSizeRecoveryTest.dat", deleteOnClose: true);
var allocator = new MallocFixedPageSize <HashBucket>();
//do something
numBucketsToAdd = 16 * allocator.GetPageSize();
logicalAddresses = new long[numBucketsToAdd];
for (int i = 0; i < numBucketsToAdd; i++)
{
long logicalAddress = allocator.Allocate();
logicalAddresses[i] = logicalAddress;
var bucket = (HashBucket *)allocator.GetPhysicalAddress(logicalAddress);
for (int j = 0; j < Constants.kOverflowBucketIndex; j++)
{
bucket->bucket_entries[j] = rand1.Next();
}
}
//issue call to checkpoint
allocator.BeginCheckpoint(device, 0, out numBytesWritten);
//wait until complete
allocator.IsCheckpointCompletedAsync().AsTask().Wait();
allocator.Dispose();
}
public unsafe void MallocFixedPageSizeRecoveryTest()
{
int seed = 123;
var rand1 = new Random(seed);
var device = Devices.CreateLogDevice(TestContext.CurrentContext.TestDirectory + "\\MallocFixedPageSizeRecoveryTest.dat", deleteOnClose: true);
var allocator = new MallocFixedPageSize <HashBucket>();
//do something
int numBucketsToAdd = 16 * allocator.GetPageSize();
long[] logicalAddresses = new long[numBucketsToAdd];
for (int i = 0; i < numBucketsToAdd; i++)
{
long logicalAddress = allocator.Allocate();
logicalAddresses[i] = logicalAddress;
var bucket = (HashBucket *)allocator.GetPhysicalAddress(logicalAddress);
for (int j = 0; j < Constants.kOverflowBucketIndex; j++)
{
bucket->bucket_entries[j] = rand1.Next();
}
}
//issue call to checkpoint
allocator.BeginCheckpoint(device, 0, out ulong numBytesWritten);
//wait until complete
allocator.IsCheckpointCompletedAsync().AsTask().Wait();
allocator.Dispose();
var recoveredAllocator = new MallocFixedPageSize <HashBucket>();
//issue call to recover
recoveredAllocator.BeginRecovery(device, 0, numBucketsToAdd, numBytesWritten, out ulong numBytesRead);
//wait until complete
recoveredAllocator.IsRecoveryCompleted(true);
Assert.IsTrue(numBytesWritten == numBytesRead);
var rand2 = new Random(seed);
for (int i = 0; i < numBucketsToAdd; i++)
{
var logicalAddress = logicalAddresses[i];
var bucket = (HashBucket *)recoveredAllocator.GetPhysicalAddress(logicalAddress);
for (int j = 0; j < Constants.kOverflowBucketIndex; j++)
{
Assert.IsTrue(bucket->bucket_entries[j] == rand2.Next());
}
}
recoveredAllocator.Dispose();
}