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"""Example Python basing logging for SoapySDR.
This permits exceptions to be thrown if the log message is severe enough.
"""
from __future__ import print_function
import sys
import SoapySDR
from SoapySDR import * #SOAPY_SDR_ constants
class SoapyException(Exception):
"""SoapySDR has logged an error message (or worse)."""
def set_python_log_handler(exception_level=None):
"""Replace the default SoapySDR log handler with a Python one.
The python handler sends the log text to stderr.
If the log_level is at exception_level or worse then a SoapyException
is thrown.
"""
log_level_text = {
SOAPY_SDR_FATAL: "FATAL",
SOAPY_SDR_CRITICAL: "CRITICAL",
SOAPY_SDR_ERROR: "ERROR",
SOAPY_SDR_WARNING: "WARNING",
SOAPY_SDR_NOTICE: "NOTICE",
SOAPY_SDR_INFO: "INFO",
SOAPY_SDR_DEBUG: "DEBUG",
SOAPY_SDR_TRACE: "TRACE",
SOAPY_SDR_SSI: "SSI"}
def log_handler(log_level, message):
level_text = log_level_text[log_level]
log_text = "[{}] {}".format(level_text, message)
print(log_text, file=sys.stderr)
if exception_level is not None and log_level <= exception_level:
raise SoapyException(log_text)
SoapySDR.registerLogHandler(log_handler)
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