opendarwin man page for mincore

MINCORE(2)						      BSD System Calls Manual							MINCORE(2)

NAME
     mincore -- determine residency of memory pages

SYNOPSIS
     #include <sys/types.h>
     #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