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MySQL 9.0.0
Source Code Documentation
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The interface to the operating system file i/o primitives. More...
#include "buf0checksum.h"
#include "db0err.h"
#include "fil0fil.h"
#include "mach0data.h"
#include "os0file.h"
#include "univ.i"
#include <lz4.h>
#include <zlib.h>
Functions | |
dberr_t | os_file_decompress_page (bool dblwr_read, byte *src, byte *dst, ulint dst_len) |
Decompress the page data contents. More... | |
The interface to the operating system file i/o primitives.
Created 10/21/1995 Heikki Tuuri
Decompress the page data contents.
Page type must be FIL_PAGE_COMPRESSED, if not then the source contents are left unchanged and DB_SUCCESS is returned.
[in] | dblwr_read | true of double write recovery in progress |
[in,out] | src | Data read from disk, decompressed data will be copied to this page |
[in,out] | dst | Scratch area to use for decompression or nullptr. |
[in] | dst_len | If dst is valid, then size of the scratch area in bytes |