Trait cap_fs_ext::OpenOptionsSyncExt

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pub trait OpenOptionsSyncExt {
    // Required methods
    fn sync(&mut self, enable: bool) -> &mut Self;
    fn dsync(&mut self, enable: bool) -> &mut Self;
    fn rsync(&mut self, enable: bool) -> &mut Self;
    fn nonblock(&mut self, enable: bool) -> &mut Self;
}
Expand description

Extension trait for cap_primitives::fs::OpenOptions which adds sync, dsync, rsync, and nonblock functions for controlling various I/O modes for the opened file.

Required Methods§

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fn sync(&mut self, enable: bool) -> &mut Self

Requests write operations complete as defined by synchronized I/O file integrity completion.

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fn dsync(&mut self, enable: bool) -> &mut Self

Requests write operations complete as defined by synchronized I/O data integrity completion.

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fn rsync(&mut self, enable: bool) -> &mut Self

Requests read operations complete as defined by the level of integrity specified by sync and dsync.

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fn nonblock(&mut self, enable: bool) -> &mut Self

Requests that I/O operations fail with std::io::ErrorKind::WouldBlock if they would otherwise block.

This option is commonly not implemented for regular files, so blocking may still occur.

Implementors§