Module rustix::fs::fcntl

The Unix fcntl function is effectively lots of different functions hidden behind a single dynamic dispatch interface. In order to provide a type-safe API, rustix makes them all separate functions so that they can have dedicated static type signatures.

Re-exports

• pub use crate::io::fcntl_dupfd_cloexec;
• pub use crate::io::fcntl_getfd;
• pub use crate::io::fcntl_setfd;

Functions

• fcntl_add_seals
  fcntl(fd, F_ADD_SEALS)
• fcntl_get_seals
  fcntl(fd, F_GET_SEALS)
• fcntl_getfl
  fcntl(fd, F_GETFL)—Returns a file descriptor’s access mode and status.
• fcntl_lock
  fcntl(fd, F_SETLK)—Acquire or release an fcntl-style lock.
• fcntl_setfl
  fcntl(fd, F_SETFL, flags)—Sets a file descriptor’s status.