Man page - pmemblk_set_zero(3)

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Package: libpmemblk-dev
apt-get install libpmemblk-dev

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libpmemblk-dev

Manual

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO

NAME

pmemblk_set_zero ()(DEPRECATED), pmemblk_set_error ()(DEPRECATED) - 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.