NAME
mincore —
determine residency of memory
pages
SYNOPSIS
#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, the value 0 is returned; otherwise the value -1 is returned and the global variable 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.