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

---