| GETVFSSTAT(2) | System Calls Manual | GETVFSSTAT(2) | 
getvfsstat —
#include <sys/types.h>
#include <sys/statvfs.h>
int
  
  getvfsstat(struct
    statvfs *buf, size_t
    bufsize, int
    flags);
getvfsstat() returns information about all mounted file
  systems. buf is a pointer to an array of
  statvfs structures defined in
  statvfs(5).
The buffer is filled with an array of statvfs structures, one for each mounted file system up to the size specified by bufsize.
If buf is given as
    NULL, getvfsstat() returns
    just the number of mounted file systems.
Normally flags should be specified as
    ST_WAIT. If flags is set to
    ST_NOWAIT, getvfsstat() will
    return the information it has available without requesting an update from
    each file system. Thus, some of the information will be out of date, but
    getvfsstat() will not block waiting for information
    from a file system that is unable to respond.
getvfsstat() fails if one or more of the following are
  true:
getvfsstat() function first appeared in
  NetBSD 3.0 to replace
  getfsstat() which appeared in
  4.4BSD.
| May 19, 2006 | NetBSD 9.3 |