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MINCORE(2) System Calls Manual MINCORE(2)

NAME

mincoredetermine 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.
July 2, 2014 OpenBSD-current