From 311bcfc6b3acdd6fd152798c7f287ddf74fa2a98 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:46:48 +0200 Subject: Adding upstream version 15.4. Signed-off-by: Daniel Baumann --- src/include/common/compression.h | 45 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 src/include/common/compression.h (limited to 'src/include/common/compression.h') diff --git a/src/include/common/compression.h b/src/include/common/compression.h new file mode 100644 index 0000000..bb80e88 --- /dev/null +++ b/src/include/common/compression.h @@ -0,0 +1,45 @@ +/*------------------------------------------------------------------------- + * + * compression.h + * + * Shared definitions for compression methods and specifications. + * + * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group + * + * IDENTIFICATION + * src/common/compression.h + *------------------------------------------------------------------------- + */ + +#ifndef PG_COMPRESSION_H +#define PG_COMPRESSION_H + +typedef enum pg_compress_algorithm +{ + PG_COMPRESSION_NONE, + PG_COMPRESSION_GZIP, + PG_COMPRESSION_LZ4, + PG_COMPRESSION_ZSTD +} pg_compress_algorithm; + +#define PG_COMPRESSION_OPTION_WORKERS (1 << 0) + +typedef struct pg_compress_specification +{ + pg_compress_algorithm algorithm; + unsigned options; /* OR of PG_COMPRESSION_OPTION constants */ + int level; + int workers; + char *parse_error; /* NULL if parsing was OK, else message */ +} pg_compress_specification; + +extern bool parse_compress_algorithm(char *name, pg_compress_algorithm *algorithm); +extern const char *get_compress_algorithm_name(pg_compress_algorithm algorithm); + +extern void parse_compress_specification(pg_compress_algorithm algorithm, + char *specification, + pg_compress_specification *result); + +extern char *validate_compress_specification(pg_compress_specification *); + +#endif -- cgit v1.2.3