本文整理汇总了Python中serial.win32.COMSTAT属性的典型用法代码示例。如果您正苦于以下问题：Python win32.COMSTAT属性的具体用法？Python win32.COMSTAT怎么用？Python win32.COMSTAT使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类serial.win32的用法示例。
在下文中一共展示了win32.COMSTAT属性的14个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: in_waiting
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def in_waiting(self):
"""Return the number of bytes currently in the input buffer."""
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException('call to ClearCommError failed')
return comstat.cbInQue 示例2: read
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def read(self, size=1):
"""\
Read size bytes from the serial port. If a timeout is set it may
return less characters as requested. With no timeout it will block
until the requested number of bytes is read."""
if not self._port_handle:
raise portNotOpenError
if size > 0:
win32.ResetEvent(self._overlapped_read.hEvent)
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException('call to ClearCommError failed')
if self.timeout == 0:
n = min(comstat.cbInQue, size)
if n > 0:
buf = ctypes.create_string_buffer(n)
rc = win32.DWORD()
read_ok = win32.ReadFile(self._port_handle, buf, n, ctypes.byref(rc), ctypes.byref(self._overlapped_read))
if not read_ok and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
win32.GetOverlappedResult(self._port_handle, ctypes.byref(self._overlapped_read), ctypes.byref(rc), True)
read = buf.raw[:rc.value]
else:
read = bytes()
else:
buf = ctypes.create_string_buffer(size)
rc = win32.DWORD()
read_ok = win32.ReadFile(self._port_handle, buf, size, ctypes.byref(rc), ctypes.byref(self._overlapped_read))
if not read_ok and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
win32.GetOverlappedResult(self._port_handle, ctypes.byref(self._overlapped_read), ctypes.byref(rc), True)
read = buf.raw[:rc.value]
else:
read = bytes()
return bytes(read) 示例3: out_waiting
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def out_waiting(self):
"""Return how many bytes the in the outgoing buffer"""
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException('call to ClearCommError failed')
return comstat.cbOutQue
# Nur Testfunktion!! 示例4: inWaiting
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def inWaiting(self):
"""Return the number of characters currently in the input buffer."""
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException('call to ClearCommError failed')
return comstat.cbInQue 示例5: read
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def read(self, size=1):
"""Read size bytes from the serial port. If a timeout is set it may
return less characters as requested. With no timeout it will block
until the requested number of bytes is read."""
if not self.hComPort: raise portNotOpenError
if size > 0:
win32.ResetEvent(self._overlappedRead.hEvent)
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException('call to ClearCommError failed')
if self.timeout == 0:
n = min(comstat.cbInQue, size)
if n > 0:
buf = ctypes.create_string_buffer(n)
rc = win32.DWORD()
err = win32.ReadFile(self.hComPort, buf, n, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
err = win32.WaitForSingleObject(self._overlappedRead.hEvent, win32.INFINITE)
read = buf.raw[:rc.value]
else:
read = bytes()
else:
buf = ctypes.create_string_buffer(size)
rc = win32.DWORD()
err = win32.ReadFile(self.hComPort, buf, size, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
err = win32.GetOverlappedResult(self.hComPort, ctypes.byref(self._overlappedRead), ctypes.byref(rc), True)
read = buf.raw[:rc.value]
else:
read = bytes()
return bytes(read) 示例6: outWaiting
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def outWaiting(self):
"""return how many characters the in the outgoing buffer"""
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException('call to ClearCommError failed')
return comstat.cbOutQue
# functions useful for RS-485 adapters 示例7: read
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def read(self, size=1):
"""\
Read size bytes from the serial port. If a timeout is set it may
return less characters as requested. With no timeout it will block
until the requested number of bytes is read.
"""
if not self.is_open:
raise portNotOpenError
if size > 0:
win32.ResetEvent(self._overlapped_read.hEvent)
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException("ClearCommError failed ({!r})".format(ctypes.WinError()))
n = min(comstat.cbInQue, size) if self.timeout == 0 else size
if n > 0:
buf = ctypes.create_string_buffer(n)
rc = win32.DWORD()
read_ok = win32.ReadFile(
self._port_handle,
buf,
n,
ctypes.byref(rc),
ctypes.byref(self._overlapped_read))
if not read_ok and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
raise SerialException("ReadFile failed ({!r})".format(ctypes.WinError()))
result_ok = win32.GetOverlappedResult(
self._port_handle,
ctypes.byref(self._overlapped_read),
ctypes.byref(rc),
True)
if not result_ok:
if win32.GetLastError() != win32.ERROR_OPERATION_ABORTED:
raise SerialException("GetOverlappedResult failed ({!r})".format(ctypes.WinError()))
read = buf.raw[:rc.value]
else:
read = bytes()
else:
read = bytes()
return bytes(read) 示例8: out_waiting
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def out_waiting(self):
"""Return how many bytes the in the outgoing buffer"""
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException('call to ClearCommError failed')
return comstat.cbOutQue 示例9: in_waiting
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def in_waiting(self):
"""Return the number of bytes currently in the input buffer."""
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException("ClearCommError failed ({!r})".format(ctypes.WinError()))
return comstat.cbInQue 示例10: out_waiting
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def out_waiting(self):
"""Return how many bytes the in the outgoing buffer"""
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException("ClearCommError failed ({!r})".format(ctypes.WinError()))
return comstat.cbOutQue 示例11: read
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def read(self, size=1):
"""\
Read size bytes from the serial port. If a timeout is set it may
return less characters as requested. With no timeout it will block
until the requested number of bytes is read."""
if not self._port_handle:
raise portNotOpenError
if size > 0:
win32.ResetEvent(self._overlapped_read.hEvent)
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException('call to ClearCommError failed')
if self.timeout == 0:
n = min(comstat.cbInQue, size)
if n > 0:
buf = ctypes.create_string_buffer(n)
rc = win32.DWORD()
read_ok = win32.ReadFile(self._port_handle, buf, n, ctypes.byref(rc), ctypes.byref(self._overlapped_read))
if not read_ok and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
win32.WaitForSingleObject(self._overlapped_read.hEvent, win32.INFINITE)
read = buf.raw[:rc.value]
else:
read = bytes()
else:
buf = ctypes.create_string_buffer(size)
rc = win32.DWORD()
read_ok = win32.ReadFile(self._port_handle, buf, size, ctypes.byref(rc), ctypes.byref(self._overlapped_read))
if not read_ok and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
win32.GetOverlappedResult(self._port_handle, ctypes.byref(self._overlapped_read), ctypes.byref(rc), True)
read = buf.raw[:rc.value]
else:
read = bytes()
return bytes(read) 示例12: read
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def read(self, size=1):
"""\
Read size bytes from the serial port. If a timeout is set it may
return less characters as requested. With no timeout it will block
until the requested number of bytes is read."""
if not self.hComPort: raise portNotOpenError
if size > 0:
win32.ResetEvent(self._overlappedRead.hEvent)
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException('call to ClearCommError failed')
if self.timeout == 0:
n = min(comstat.cbInQue, size)
if n > 0:
buf = ctypes.create_string_buffer(n)
rc = win32.DWORD()
err = win32.ReadFile(self.hComPort, buf, n, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
err = win32.WaitForSingleObject(self._overlappedRead.hEvent, win32.INFINITE)
read = buf.raw[:rc.value]
else:
read = bytes()
else:
buf = ctypes.create_string_buffer(size)
rc = win32.DWORD()
err = win32.ReadFile(self.hComPort, buf, size, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
err = win32.GetOverlappedResult(self.hComPort, ctypes.byref(self._overlappedRead), ctypes.byref(rc), True)
read = buf.raw[:rc.value]
else:
read = bytes()
return bytes(read) 示例13: outWaiting
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def outWaiting(self):
"""Return how many characters the in the outgoing buffer"""
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException('call to ClearCommError failed')
return comstat.cbOutQue
# functions useful for RS-485 adapters 示例14: read
# 需要导入模块: from serial import win32 [as 别名]
# 或者: from serial.win32 import COMSTAT [as 别名]
def read(self, size=1):
"""Read size bytes from the serial port. If a timeout is set it may
return less characters as requested. With no timeout it will block
until the requested number of bytes is read."""
if not self.hComPort: raise portNotOpenError
if size > 0:
win32.ResetEvent(self._overlappedRead.hEvent)
flags = win32.DWORD()
comstat = win32.COMSTAT()
if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
raise SerialException('call to ClearCommError failed')
if self.timeout == 0:
n = min(comstat.cbInQue, size)
if n > 0:
buf = ctypes.create_string_buffer(n)
rc = win32.DWORD()
err = win32.ReadFile(self.hComPort, buf, n, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
raise SerialException("ReadFile failed (%s)" % ctypes.WinError())
err = win32.WaitForSingleObject(self._overlappedRead.hEvent, win32.INFINITE)
read = buf.raw[:rc.value]
else:
read = bytes()
else:
buf = ctypes.create_string_buffer(size)
rc = win32.DWORD()
err = win32.ReadFile(self.hComPort, buf, size, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
raise SerialException("ReadFile failed (%s)" % ctypes.WinError())
err = win32.GetOverlappedResult(self.hComPort, ctypes.byref(self._overlappedRead), ctypes.byref(rc), True)
read = buf.raw[:rc.value]
else:
read = bytes()
return bytes(read)