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authorandrii.davydenko <andrii.davydenko@globallogic.com>2021-11-16 11:51:32 +0200
committerJohn Klug <john.klug@multitech.com>2022-04-18 13:47:07 -0500
commit4322fabc71ddc54c19dd0e54a0b5248da372e9e5 (patch)
tree6eaf7db557e91e1f6b6c29885d5fddc3c584c457 /src/MTS_IO_SerialConnection.cpp
parent166af1c1bd7c9a0368d046261bab2162a37a7dc2 (diff)
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Update MODBUS slave feature, Rogers Certification issue1.0.28
Diffstat (limited to 'src/MTS_IO_SerialConnection.cpp')
-rw-r--r--src/MTS_IO_SerialConnection.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/MTS_IO_SerialConnection.cpp b/src/MTS_IO_SerialConnection.cpp
index 936d28d..d13c565 100644
--- a/src/MTS_IO_SerialConnection.cpp
+++ b/src/MTS_IO_SerialConnection.cpp
@@ -546,6 +546,10 @@ int SerialConnection::doRead(char* pBuffer, const uint32_t& iSize, int32_t& time
} else {
if (FD_ISSET(h, &readfs)) {
result = ::read(h, pBuffer, iSize);
+ if (result == 0) {
+ printTrace("SERIAL| serial port [%s] disconnected", m_sPortName.c_str());
+ result = -1;
+ }
} else {
//socket closed?
result = -1;