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PcscReaders

sioul_sync::securitykey::smartcard

Struct PcscReaders 

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pub struct PcscReaders;
Expand description

The system’s readers, through PC/SC.

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impl Readers for PcscReaders

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fn present(&self) -> Result<Vec<String>, CardError>

The readers holding a key now, by name, without opening any: to see a key go away.
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fn visit( &self, visit: &mut dyn FnMut(&mut dyn Card) -> Visit, ) -> Result<Visited, CardError>

Opens each key present in turn, in shared mode, and gives it to visit until visit is done; each is closed afterwards, which resets it.
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fn wait_change(&self, timeout: Duration)

Waits for the readers to change, timeout at most: a computer looks again after it; a phone wakes as soon as a key is held to it.
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fn taps(&self) -> bool

Whether a key is used in one tap (a phone, over NFC): its PIN asked first, from what Sioul knows of it, then the key read, given its PIN and used while it is held, never read on its own beforehand.
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fn want(&self, _wanted: bool)

A key is wanted now, or no longer: a phone reads keys (NFC’s reader mode, ahead of other apps) only while Sioul asks for one, in front.
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fn by_cable(&self) -> bool

Whether the key in reach now, or the last one used, came by cable (a phone’s USB-C port): its touch is asked as on a computer, and it is unplugged rather than moved away. A computer’s readers say no: their words are the computer’s.
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fn reach_note(&self) -> Option<CardError>

How keys can come now, when one way is missing: a phone without NFC (NoNfc) or with NFC off (NfcOff) still takes a key plugged in.

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