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Comment about GIL while polling with NFC reader

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This commit is contained in:
Ondrej Mikle 2017-10-29 22:28:30 +01:00
parent 84390a7958
commit 91360e7d3c
1 changed files with 2 additions and 0 deletions
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2
nfc_smartcard.cpp
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@ -104,6 +104,8 @@ std::string NFCDevice::scanUID() throw(NFCError)
throw NFCError("NFC device not opened");
}
// We release GIL because otherwise it would block other threads. Since this polling is de-facto sleep and
// doesn't touch any variables, it works as a language without GIL would.
Py_BEGIN_ALLOW_THREADS
res = nfc_initiator_poll_target(_nfcDevice, _modulations, _modulationsLen, pollNr, pollPeriod, &nt);
Py_END_ALLOW_THREADS