pmemblk API version 1.1

The PMDK repository on GitHub is the ultimate source of information on PMDK from release 2.0! For all questions and to submit eventual issues please follow to that repository. The PMDK documentation collected here should be valid up to the 1.13.1 release but is maintained only on a best-effort basis and may not reflect the latest state of the art.

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO

NAME

pmemblk_set_zero(), pmemblk_set_error() - block management functions

SYNOPSIS

#include <libpmemblk.h>

int pmemblk_set_zero(PMEMblkpool *pbp, long long blockno);
int pmemblk_set_error(PMEMblkpool *pbp, long long blockno);

DESCRIPTION

The pmemblk_set_zero() function writes zeros to block number blockno in persistent memory resident array of blocks pbp. Using this function is faster than actually writing a block of zeros since libpmemblk(7) uses metadata to indicate the block should read back as zero.

The pmemblk_set_error() function sets the error state for block number blockno in persistent memory resident array of blocks pbp. A block in the error state returns errno EIO when read. Writing the block clears the error state and returns the block to normal use.

RETURN VALUE

On success, pmemblk_set_zero() and pmemblk_set_error() return 0. On error, they return -1 and set errno appropriately.

SEE ALSO

libpmemblk(7) and https://pmem.io

The contents of this web site and the associated GitHub repositories are BSD-licensed open source.