MINCORE(2) BSD System Calls Manual MINCORE(2)NAMEmincore — 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 ALSOmadvise(2), mprotect(2), msync(2), munmap(2)HISTORY
The mincore() function first appeared in 4.4BSD.
BSD June 9, 1993 BSD