| /* |
| * 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. |
| */ |
| /* |
| * gp_compress.h |
| * gpdb compression utilities. |
| * |
| */ |
| |
| #ifndef GP_COMPRESS_H |
| #define GP_COMPRESS_H |
| |
| #include "fmgr.h" |
| |
| #include "catalog/pg_compression.h" |
| |
| #ifdef HAVE_LIBZ |
| #include <zlib.h> |
| #endif |
| |
| extern int gp_trycompress_new( |
| uint8 *sourceData, |
| int32 sourceLen, |
| uint8 *compressedBuffer, |
| int32 compressedBufferWithOverrrunLen, |
| int32 maxCompressedLen, // The largest compressed result we would like to see. |
| int32 *compressedLen, |
| int compressLevel, |
| PGFunction compressor, |
| CompressionState *compressionState); |
| |
| |
| extern void gp_decompress_new( |
| uint8 *compressed, |
| int32 compressedLen, |
| uint8 *uncompressed, |
| int32 uncompressedLen, |
| PGFunction decompressor, |
| CompressionState *compressionState, |
| int64 bufferCount); |
| |
| extern void gp_issuecompresserror( |
| int zlibCompressError, |
| int32 sourceLen); |
| |
| #endif |