Configuration options for WalMmapWriter::open(). More...

#include <wal_mapped_segment.hpp>

Public Attributes
std::string	dir
	Output directory for segment files.

std::string	name_prefix = "wal_mmap"
	Filename prefix for segment files.

size_t	ring_segments = 4
	Number of ring segments (2 to WAL_MMAP_MAX_RING).

size_t	segment_size = WAL_MMAP_DEFAULT_SEGMENT
	Size of each segment in bytes (multiple of 65536).

bool	sync_on_append = false
	If true, flush_async() after every append (HFT: false).

bool	sync_on_flush = false
	If true, use MS_SYNC on flush() instead of MS_ASYNC.

bool	use_large_pages = false
	Enable huge pages (requires OS privileges).

int64_t	start_seq = 0
	Starting sequence number for the first record.

Detailed Description

Configuration options for WalMmapWriter::open().

Defined at namespace scope (not nested in WalMmapWriter) to work around an Apple Clang restriction on default member initializers in nested aggregates.

See also: WalMmapWriter

Definition at line 415 of file wal_mapped_segment.hpp.

Member Data Documentation

◆ dir

std::string signet::forge::WalMmapOptions::dir

Output directory for segment files.

Definition at line 416 of file wal_mapped_segment.hpp.

◆ name_prefix

std::string signet::forge::WalMmapOptions::name_prefix = "wal_mmap"

Filename prefix for segment files.

Definition at line 417 of file wal_mapped_segment.hpp.

◆ ring_segments

size_t signet::forge::WalMmapOptions::ring_segments = 4

Number of ring segments (2 to WAL_MMAP_MAX_RING).

Definition at line 418 of file wal_mapped_segment.hpp.

◆ segment_size

size_t signet::forge::WalMmapOptions::segment_size = WAL_MMAP_DEFAULT_SEGMENT

Size of each segment in bytes (multiple of 65536).

Definition at line 419 of file wal_mapped_segment.hpp.

◆ start_seq

int64_t signet::forge::WalMmapOptions::start_seq = 0

Starting sequence number for the first record.

Definition at line 423 of file wal_mapped_segment.hpp.

◆ sync_on_append

bool signet::forge::WalMmapOptions::sync_on_append = false

If true, flush_async() after every append (HFT: false).

Definition at line 420 of file wal_mapped_segment.hpp.

◆ sync_on_flush

bool signet::forge::WalMmapOptions::sync_on_flush = false

If true, use MS_SYNC on flush() instead of MS_ASYNC.

Definition at line 421 of file wal_mapped_segment.hpp.

◆ use_large_pages

bool signet::forge::WalMmapOptions::use_large_pages = false

Enable huge pages (requires OS privileges).

Definition at line 422 of file wal_mapped_segment.hpp.

The documentation for this struct was generated from the following file:

include/signet/ai/wal_mapped_segment.hpp

Public Attributes