NAME    [Toc]    [Back]

     mincore - determine residency of memory pages

SYNOPSIS    [Toc]    [Back]

     #include <sys/types.h>
     #include <sys/mman.h>

     int
     mincore(void *addr, size_t len, char *vec);

DESCRIPTION    [Toc]    [Back]

     The mincore() system call allows a process to obtain  information about
     whether pages are core resident.  Here the current core residency of the
     pages is returned in the character array vec, with  a  value
of 1 meaning
     that the page is in-core.

RETURN VALUES    [Toc]    [Back]

     Upon  successful completion, a value of 0 is returned.  Otherwise, a value
     of -1 is returned and errno is set to indicate the error.

SEE ALSO    [Toc]    [Back]

     madvise(2), minherit(2),  mlock(2),  mprotect(2),  msync(2),
munmap(2)

HISTORY    [Toc]    [Back]

     The mincore() function first appeared in 4.4BSD.

OpenBSD      3.6                           June      9,      1993