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csharp/test/Apache.Arrow.IntegrationTest/CDataInterface.cs
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|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| // Licensed to the Apache Software Foundation (ASF) under one or more | ||
| // contributor license agreements. See the NOTICE file distributed with | ||
| // this work for additional information regarding copyright ownership. | ||
| // The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| // (the "License"); you may not use this file except in compliance with | ||
| // the License. You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Data; | ||
| using System.Diagnostics; | ||
| using System.IO; | ||
| using Apache.Arrow.C; | ||
| using Apache.Arrow.Arrays; | ||
| using Apache.Arrow.Types; | ||
|
|
||
| namespace Apache.Arrow.IntegrationTest | ||
| { | ||
| /// <summary> | ||
| /// Bridge for C Data Interface integration testing. | ||
| /// These methods are called from the Python integration testing | ||
| /// harness provided by Archery. | ||
| /// </summary> | ||
| public static class CDataInterface | ||
| { | ||
| // Archery uses the `pythonnet` library (*) to invoke .Net DLLs. | ||
| // `pythonnet` is only able to marshal simple types such as int and | ||
| // str, which is why we provide trivial wrappers around other APIs. | ||
| // | ||
| // (*) https://pythonnet.github.io/ | ||
|
|
||
| public static void Initialize() | ||
| { | ||
| // Allow debugging using Debug.WriteLine() | ||
| Trace.Listeners.Add(new ConsoleTraceListener()); | ||
| } | ||
|
|
||
| public static unsafe Schema ImportSchema(long ptr) | ||
| { | ||
| return CArrowSchemaImporter.ImportSchema((CArrowSchema*) ptr); | ||
| } | ||
|
|
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| public static unsafe void ExportSchema(Schema schema, long ptr) | ||
| { | ||
| CArrowSchemaExporter.ExportSchema(schema, (CArrowSchema*) ptr); | ||
| } | ||
|
|
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| public static unsafe RecordBatch ImportRecordBatch(long ptr, Schema schema) | ||
| { | ||
| return CArrowArrayImporter.ImportRecordBatch((CArrowArray*) ptr, schema); | ||
| } | ||
|
|
||
| public static unsafe void ExportRecordBatch(RecordBatch batch, long ptr) | ||
| { | ||
| CArrowArrayExporter.ExportRecordBatch(batch, (CArrowArray*) ptr); | ||
| } | ||
|
|
||
| public static JsonFile ParseJsonFile(String jsonPath) | ||
| { | ||
| return JsonFile.Parse(new FileInfo(jsonPath)); | ||
| } | ||
|
|
||
| public static long GetAllocatedBytes() | ||
| { | ||
| GC.Collect(); | ||
| // XXX this doesn't seem to give stable and reliable measurements | ||
| var gcInfo = GC.GetGCMemoryInfo(); | ||
| return gcInfo.PromotedBytes; | ||
| } | ||
| } | ||
| } |
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