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MINCORE(2)                  BSD System Calls Manual                 MINCORE(2)

NAME
     mincore -- determine residency of memory pages

SYNOPSIS
     #include <&lt;sys/mman.h>&gt;

     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.

BSD                             March 28, 2017                             BSD