#ifndef IUCLC
#define IUCLC 0
#endif
+#else
+#include <lockdev.h>
#endif
+
using namespace std;
using namespace PLATFORM;
+inline bool RemoveLock(const char *strDeviceName)
+{
+ #if !defined(__APPLE__) && !defined(__FreeBSD__)
+ return dev_unlock(strDeviceName, 0) == 0;
+ #endif
+}
+
void CSerialSocket::Close(void)
{
if (IsOpen())
+ {
SocketClose(m_socket);
+ RemoveLock(m_strName.c_str());
+ }
}
void CSerialSocket::Shutdown(void)
{
if (IsOpen())
+ {
SocketClose(m_socket);
+ RemoveLock(m_strName.c_str());
+ }
}
ssize_t CSerialSocket::Write(void* data, size_t len)
{
iTimeoutMs = 0;
if (IsOpen())
+ {
+ m_iError = EINVAL;
return false;
+ }
if (m_iDatabits != SERIAL_DATA_BITS_FIVE && m_iDatabits != SERIAL_DATA_BITS_SIX &&
m_iDatabits != SERIAL_DATA_BITS_SEVEN && m_iDatabits != SERIAL_DATA_BITS_EIGHT)
{
m_strError = "Databits has to be between 5 and 8";
+ m_iError = EINVAL;
return false;
}
if (m_iStopbits != SERIAL_STOP_BITS_ONE && m_iStopbits != SERIAL_STOP_BITS_TWO)
{
m_strError = "Stopbits has to be 1 or 2";
+ m_iError = EINVAL;
return false;
}
if (m_iParity != SERIAL_PARITY_NONE && m_iParity != SERIAL_PARITY_EVEN && m_iParity != SERIAL_PARITY_ODD)
{
m_strError = "Parity has to be none, even or odd";
+ m_iError = EINVAL;
+ return false;
+ }
+
+ #if !defined(__APPLE__) && !defined(__FreeBSD__)
+ if (dev_lock(m_strName.c_str()) != 0)
+ {
+ m_strError = "Couldn't lock the serial port";
+ m_iError = EBUSY;
return false;
}
+ #endif
m_socket = open(m_strName.c_str(), O_RDWR | O_NOCTTY | O_NDELAY);
if (m_socket == INVALID_SERIAL_SOCKET_VALUE)
{
m_strError = strerror(errno);
+ RemoveLock(m_strName.c_str());
return false;
}
if (tcsetattr(m_socket, TCSANOW, &m_options) != 0)
{
m_strError = strerror(errno);
+ RemoveLock(m_strName.c_str());
return false;
}