DragonFly On-Line Manual Pages

MINCORE(2)               DragonFly System Calls Manual              MINCORE(2)

NAME
     mincore -- get advice about use of memory

LIBRARY
     Standard C Library (libc, -lc)

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

     int
     mincore(const 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
     The mincore() function returns the value 0 if successful; otherwise the
     value -1 is returned and the global variable errno is set to indicate the
     error.

ERRORS
     [EINVAL]           The virtual address range specified by the addr and
                        len arguments is not valid.

     [EFAULT]           The vec argument points to an illegal address.

SEE ALSO
     madvise(2), mprotect(2), msync(2), munmap(2)

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

DragonFly 3.5                    June 9, 1993                    DragonFly 3.5