MINCORE(2) BSD System Calls Manual MINCORE(2)
mincore -- determine residency of memory pages
mincore(void *addr, size_t len, char *vec);
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.
Upon successful completion, the value 0 is returned; otherwise the
value -1 is returned and the global variable errno is set to indicate the
madvise(2), minherit(2), mlock(2), mprotect(2), msync(2), munmap(2)
The mincore() function first appeared in 4.4BSD.
BSD July 2, 2014 BSD