NAME

       pmem2_errormsg() - returns last error message

SYNOPSIS

              #include <libpmem2.h>

              const char *pmem2_errormsg(void);

DESCRIPTION

       If  an  error  is  detected during the call to a libpmem2(7) function, the application may
       retrieve an error message describing the reason of the failure from pmem2_errormsg().  The
       error  message  buffer is thread-local; errors encountered in one thread do not affect its
       value in other threads.  The buffer is never cleared by any library function; its  content
       is  significant  only  when  the  return  value  of  the  immediately  preceding call to a
       libpmem2(7) function indicated an error.  The application must  not  modify  or  free  the
       error message string.  Subsequent calls to other library functions may modify the previous
       message.

RETURN VALUE

       The pmem2_errormsg() function returns a pointer to a static  buffer  containing  the  last
       error  message  logged  for  the  current thread.  If errno was set, the error message may
       include a description of the corresponding error code as returned by strerror(3).

SEE ALSO

       strerror(3), libpmem2(7) and <https://pmem.io>