1PMEMBLK_SET_ZERO(3)        PMDK Programmer's Manual        PMEMBLK_SET_ZERO(3)
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NAME

6       pmemblk_set_zero(), pmemblk_set_error() - block management functions
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SYNOPSIS

9              #include <libpmemblk.h>
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11              int pmemblk_set_zero(PMEMblkpool *pbp, long long blockno);
12              int pmemblk_set_error(PMEMblkpool *pbp, long long blockno);
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DESCRIPTION

15       The pmemblk_set_zero() function writes zeros to block number blockno in
16       persistent memory resident array of blocks pbp.  Using this function is
17       faster  than actually writing a block of zeros since libpmemblk(7) uses
18       metadata to indicate the block should read back as zero.
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20       The pmemblk_set_error() function sets the error state for block  number
21       blockno  in persistent memory resident array of blocks pbp.  A block in
22       the error state returns errno EIO when read.  Writing the block  clears
23       the error state and returns the block to normal use.
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RETURN VALUE

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

30       libpmemblk(7) and <http://pmem.io>
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34PMDK - pmemblk API version 1.1    2019-07-10               PMEMBLK_SET_ZERO(3)
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