#include <sys/mman.h>

     int
     mincore(caddr_t 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.

BSD                              June 9, 1993                              BSD