1# This script parses the logcat lines produced by the Tuning Fork DebugBackend 2# which are base64 encoded serializations of TuningForkLogEvent protos. 3# Usage: 4# adb logcat -d | python parselogcat.py 5 6import sys 7import re 8 9# To generate python files from the proto files: 10# export TF_PROTO_DIR=../../src/tuningfork/proto/ 11# protoc --python_out=. -I$TF_PROTO_DIR $TF_PROTO_DIR/tuningfork.proto 12# protoc --python_out=. -I$TF_PROTO_DIR $TF_PROTO_DIR/tuningfork_clearcut_log.proto 13# export TF_DEV_PROTO_DIR=<somewhere> 14# protoc --python_out=. -I$TF_DEV_PROTO_DIR $TF_DEV_PROTO_DIR/dev_tuningfork.proto 15 16# 'pip install protobuf' if you get a 'No module named protobuf' error 17 18import tuningfork_clearcut_log_pb2 as tcl 19import dev_tuningfork_pb2 as tf 20 21# Example logcat line: 22#11-30 15:32:22.892 13781 16553 I TuningFork.Clearcut: (TCL1/1)GgAqHAgAEgAaFgAAAAAAAAAAAAAAAAAAAAAAAAAAAEg= 23tflogcat_regex = r"(\S+ \S+).*TuningFork.*\(TCL(.+)/(.+)\)(.*)" 24 25def flatten(s): 26 return ', '.join(s.strip().split('\n')) 27 28def prettyPrint(tclevent): 29 fp =tf.FidelityParams() 30 fp.ParseFromString(tclevent.fidelityparams) 31 print "fidelityparams: ", flatten(str(fp)) 32 for h in tclevent.histograms: 33 print "histograms {" 34 print " instrument_id: ", h.instrument_id 35 a = tf.Annotation() 36 a.ParseFromString(h.annotation) 37 print " annotation: ", flatten(str(a)) 38 for c in h.counts: 39 print " counts: ", c 40 print "}" 41 42ser = "" 43def getTCLEvent(i, n, ser_in): 44 global ser 45 if i==1: 46 ser = "" 47 ser += ser_in 48 if i<>n: 49 return 50 l = tcl.TuningForkLogEvent() 51 l.ParseFromString(ser.decode("base64")) 52 return l 53 54def readStdin(): 55 for logcat_lines in sys.stdin.readlines(): 56 m = re.match(tflogcat_regex, logcat_lines) 57 if m: 58 subparts = m.groups() 59 tstamp = subparts[0] 60 tclevent = getTCLEvent(int(subparts[1]),int(subparts[2]),subparts[3]) 61 if tclevent: 62 prettyPrint(tclevent) 63 64def main(): 65 readStdin() 66 67if __name__ == "__main__": 68 main() 69