MINCORE(2)                OpenBSD Programmer's Manual               MINCORE(2)

NAME
     mincore - determine residency of memory pages



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

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

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

HISTORY
     The mincore() function first appeared in 4.4BSD.

OpenBSD 2.6                      June 9, 1993                                1