[Pcsclite-git-commit] [pcsc-tools] 27/32: pcsc_scan: ignore same state

[Ludovic Rousseau]

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rousseau pushed a commit to branch master
in repository pcsc-tools.

commit e1a76f2a903d101198c70b7f65dd3f3a1157663d
Author: Ludovic Rousseau <ludovic.rousseau at free.fr>
Date:   Sat Apr 8 18:18:04 2017 +0200

    pcsc_scan: ignore same state
    
    On macOS SCardGetStatusChange() set SCARD_STATE_CHANGED even
    if the state has _not_ changed.
    The bit is not reset.
---
 pcsc_scan.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pcsc_scan.c b/pcsc_scan.c
index 70d1c9f..623a772 100644
--- a/pcsc_scan.c
+++ b/pcsc_scan.c
@@ -454,6 +454,12 @@ get_readers:
 		 * happened */
 		for (current_reader=0; current_reader < nbReaders; current_reader++)
 		{
+#ifdef __APPLE__
+			if (rgReaderStates_t[current_reader].dwCurrentState ==
+				rgReaderStates_t[current_reader].dwEventState)
+				continue;
+#endif
+
 			if (rgReaderStates_t[current_reader].dwEventState &
 				SCARD_STATE_CHANGED)
 			{

-- 
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