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>