Interface IMountedDataPageReader
Reads through a IMountedDataPage in groups of one or more samples. Samples within a group are always in ascending timestamp order, regardless of the requested ReadDirection.
The grouping effect is implementation-dependent. A page may return samples singly or all in a single group.
Namespace: MESL.SqlRace.Domain.MountedSessions
Assembly: MESL.SqlRace.Domain.dll
Syntax
public interface IMountedDataPageReaderProperties
Count
Gets the number of samples available in the next call to CopyTimestamps(Int64[]) and CopyRawSamples(Byte[], Int32, Int32).
Declaration
int Count { get; }Property Value
| Type | Description |
|---|---|
| System.Int32 |
Methods
CopyRawSamples(Byte[], Int32, Int32)
Copies raw (un-converted) samples to the specified buffer. Sufficient space must be provided for each sample based on SampleSize.
Declaration
int CopyRawSamples(byte[] buffer, int offset, int samples)Parameters
| Type | Name | Description |
|---|---|---|
| System.Byte[] | buffer | Buffer sufficient for the requested sample count. The maximum supported sample width is 8 bytes. |
| System.Int32 | offset | Offset into the samples to start copying from; measured in samples, not bytes. |
| System.Int32 | samples | Number of samples to copy; measured in samples, not bytes. |
Returns
| Type | Description |
|---|---|
| System.Int32 | Number of bytes copied. |
CopyTimestamps(Int64[])
Copies Count timestamps to the specified buffer.
Declaration
void CopyTimestamps(long[] buffer)Parameters
| Type | Name | Description |
|---|---|---|
| System.Int64[] | buffer | Timestamps buffer. |
Next()
Advances to the next group of samples within the page in the ReadDirection.
Must be called and return true prior to accessing Count,
CopyTimestamps(Int64[]) or CopyRawSamples(Byte[], Int32, Int32).
Declaration
bool Next()Returns
| Type | Description |
|---|---|
| System.Boolean |
|