//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public Void call() throws Exception
public override Void Call()
{
Random random = new Random();
int recordsPerPage = _format.RecordsPerPage;
int recordSize = _format.RecordSize;
using (PageCursor cursor = _pagedFile.io(0, PF_SHARED_WRITE_LOCK))
{
while (!_condition.fulfilled())
{
int recordId = random.Next(_maxRecords);
int pageId = recordId / recordsPerPage;
int recordOffset = (recordId % recordsPerPage) * recordSize;
_locks.@lock(recordId);
try
{
assertTrue(cursor.Next(pageId), "I must be able to access pages");
cursor.Offset = recordOffset;
long newValue = _format.incrementCounter(cursor, _threadId);
_countSum++;
assertFalse(cursor.ShouldRetry(), "Write lock, so never a need to retry");
assertThat("Record-local count must be less than or equal to thread-local count sum", newValue, lessThanOrEqualTo(_countSum));
}
finally
{
_locks.unlock(recordId);
}
}
}
return(null);
}
public override void Get(long index, sbyte[] into)
{
long pageId = pageId(index);
int offset = offset(index);
try
{
using (PageCursor cursor = PagedFile.io(pageId, PF_SHARED_READ_LOCK))
{
cursor.Next();
do
{
for (int i = 0; i < into.Length; i++)
{
into[i] = cursor.GetByte(offset + i);
}
} while (cursor.ShouldRetry());
CheckBounds(cursor);
}
}
catch (IOException e)
{
throw new UncheckedIOException(e);
}
}
public override int Get3ByteInt(long index, int offset)
{
long pageId = pageId(index);
offset += offset(index);
try
{
using (PageCursor cursor = PagedFile.io(pageId, PF_SHARED_READ_LOCK))
{
cursor.Next();
int result;
do
{
int lowWord = cursor.GetShort(offset) & 0xFFFF;
int highByte = cursor.GetByte(offset + Short.BYTES) & 0xFF;
result = lowWord | (highByte << (sizeof(short) * 8));
} while (cursor.ShouldRetry());
CheckBounds(cursor);
return(result == 0xFFFFFF ? -1 : result);
}
}
catch (IOException e)
{
throw new UncheckedIOException(e);
}
}
public override long Get6ByteLong(long index, int offset)
{
long pageId = pageId(index);
offset += offset(index);
try
{
using (PageCursor cursor = PagedFile.io(pageId, PF_SHARED_READ_LOCK))
{
cursor.Next();
long result;
do
{
long low4b = cursor.GetInt(offset) & 0xFFFFFFFFL;
long high2b = cursor.GetShort(offset + Integer.BYTES) & 0xFFFF;
result = low4b | (high2b << (sizeof(int) * 8));
} while (cursor.ShouldRetry());
CheckBounds(cursor);
return(result == 0xFFFFFFFFFFFFL ? -1 : result);
}
}
catch (IOException e)
{
throw new UncheckedIOException(e);
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public Record readRecord(org.neo4j.io.pagecache.PageCursor cursor) throws java.io.IOException
public override Record ReadRecord(PageCursor cursor)
{
int offset = cursor.Offset;
sbyte[] bytes = new sbyte[RecordSize];
do
{
cursor.Offset = offset;
cursor.GetBytes(bytes);
} while (cursor.ShouldRetry());
return(new PageCountRecord(bytes));
}
/// <summary>
/// Sum up the fields for the given thread for all records on the given page.
/// </summary>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public long sumCountsForThread(org.neo4j.io.pagecache.PageCursor cursor, int threadId) throws java.io.IOException
public virtual long SumCountsForThread(PageCursor cursor, int threadId)
{
int recordsPerPage = RecordsPerPage;
int fieldOffset = _fieldSize * threadId;
long sum;
do
{
sum = 0;
for (int i = 0; i < recordsPerPage; i++)
{
sum += cursor.GetLong((i * _recordSize) + fieldOffset);
}
} while (cursor.ShouldRetry());
return(sum);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public Record readRecord(org.neo4j.io.pagecache.PageCursor cursor) throws java.io.IOException
public override Record ReadRecord(PageCursor cursor)
{
int offset = cursor.Offset;
sbyte t;
sbyte f;
short f1;
int r;
long f2;
do
{
cursor.Offset = offset;
t = cursor.Byte;
f = cursor.Byte;
f1 = cursor.Short;
r = cursor.Int;
f2 = cursor.Long;
} while (cursor.ShouldRetry());
return(new StandardRecord(t, f, f1, r, f2));
}
/// <summary>
/// Verify the checksums on all the records on the given page
/// </summary>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public void verifyCheckSums(org.neo4j.io.pagecache.PageCursor cursor) throws java.io.IOException
public virtual void VerifyCheckSums(PageCursor cursor)
{
int recordsPerPage = RecordsPerPage;
for (int i = 0; i < recordsPerPage; i++)
{
int recordOffset = i * _recordSize;
long expectedChecksum;
long actualChecksum;
do
{
actualChecksum = 0;
for (int j = 0; j < _numberOfThreads; j++)
{
actualChecksum += cursor.GetLong(recordOffset + (j * _fieldSize));
}
expectedChecksum = cursor.GetLong(recordOffset + _checksumFieldOffset);
} while (cursor.ShouldRetry());
string msg = "Checksum for record " + i + " on page " + cursor.CurrentPageId;
assertThat(msg, actualChecksum, @is(expectedChecksum));
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private <R extends org.neo4j.kernel.impl.store.record.AbstractBaseRecord> void readAndVerifyRecord(R written, R read, RecordFormat<R> format, RecordKey<R> key, org.neo4j.io.pagecache.PagedFile storeFile, int recordSize, boolean assertPostReadOffset) throws java.io.IOException
private void ReadAndVerifyRecord <R>(R written, R read, RecordFormat <R> format, RecordKey <R> key, PagedFile storeFile, int recordSize, bool assertPostReadOffset) where R : Org.Neo4j.Kernel.impl.store.record.AbstractBaseRecord
{
using (PageCursor cursor = storeFile.Io(0, Org.Neo4j.Io.pagecache.PagedFile_Fields.PF_SHARED_READ_LOCK))
{
AssertedNext(cursor);
read.Id = written.Id;
/*
* Retry loop is needed here because format does not handle retries on the primary cursor.
* Same retry is done on the store level in {@link org.neo4j.kernel.impl.store.CommonAbstractStore}
*/
int offset = Math.toIntExact(written.Id * recordSize);
do
{
cursor.Offset = offset;
format.Read(read, cursor, NORMAL, recordSize);
} while (cursor.ShouldRetry());
AssertWithinBounds(written, cursor, "reading");
if (assertPostReadOffset)
{
assertEquals("Cursor is positioned on first byte of next record after a read", offset + recordSize, cursor.Offset);
}
cursor.CheckAndClearCursorException();
// THEN
if (written.inUse())
{
assertEquals(written.inUse(), read.inUse());
assertEquals(written.Id, read.Id);
assertEquals(written.SecondaryUnitId, read.SecondaryUnitId);
key.AssertRecordsEquals(written, read);
}
else
{
assertEquals(written.inUse(), read.inUse());
}
}
}
public override long GetLong(long index, int offset)
{
long pageId = pageId(index);
offset += offset(index);
try
{
using (PageCursor cursor = PagedFile.io(pageId, PF_SHARED_READ_LOCK))
{
cursor.Next();
long result;
do
{
result = cursor.GetLong(offset);
} while (cursor.ShouldRetry());
CheckBounds(cursor);
return(result);
}
}
catch (IOException e)
{
throw new UncheckedIOException(e);
}
}
