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#!/usr/bin/python
#
# Copyright (C) 2017 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Test converter of a Config proto.
# Generate with:
# aprotoc -I=system/extras/perfprofd --python_out=system/extras/perfprofd/scripts \
# system/extras/perfprofd/binder_interface/perfprofd_config.proto
#
# Note: it is necessary to do a '*' import to not have to jump through hoops
# with reflective instantiation.
from perfprofd_config_pb2 import *
# Necessary for introspection.
from google.protobuf.descriptor import FieldDescriptor
import sys
PROTO_FIELD_TYPE_NAMES = {
FieldDescriptor.TYPE_DOUBLE: "double",
FieldDescriptor.TYPE_FLOAT: "float",
FieldDescriptor.TYPE_INT64: "int64",
FieldDescriptor.TYPE_UINT64: "uint64",
FieldDescriptor.TYPE_INT32: "int32",
FieldDescriptor.TYPE_FIXED64: "fixed64",
FieldDescriptor.TYPE_FIXED32: "fixed32",
FieldDescriptor.TYPE_BOOL: "bool",
FieldDescriptor.TYPE_STRING: "string",
FieldDescriptor.TYPE_GROUP: "group",
FieldDescriptor.TYPE_MESSAGE: "message",
FieldDescriptor.TYPE_BYTES: "bytes",
FieldDescriptor.TYPE_UINT32: "uint32",
FieldDescriptor.TYPE_ENUM: "enum",
FieldDescriptor.TYPE_SFIXED32: "sfixed32",
FieldDescriptor.TYPE_SFIXED64: "sfixed64",
FieldDescriptor.TYPE_SINT32: "sint32",
FieldDescriptor.TYPE_SINT64: "sint64",
}
def get_type_string(proto_field_type):
if proto_field_type in PROTO_FIELD_TYPE_NAMES:
return PROTO_FIELD_TYPE_NAMES[proto_field_type]
return "unknown type"
def read_message(msg_descriptor, indent):
istr = ' ' * indent
print('%s%s' % (istr, msg_descriptor.name))
# Create an instance
instance = globals()[msg_descriptor.name]()
# Fill fields.
primitive_fields = [None]
message_fields = [None]
for field in msg_descriptor.fields:
if field.type == FieldDescriptor.TYPE_MESSAGE:
message_fields.append(field)
else:
primitive_fields.append(field)
def table_loop(fields, field_fn):
while True:
# Print selection table
maxlen = len(str(len(fields) - 1))
def pad_index(key):
while len(key) < maxlen:
key = ' ' + key
return key
for i in xrange(1, len(fields)):
print('%s%s: %s' % (istr, pad_index(str(i)), fields[i].name))
print('%s%s: done' % (istr, pad_index('0')))
print('%s%s: end' % (istr, pad_index('!')))
sel = raw_input('%s ? ' % (istr))
if sel == '!':
# Special-case input, end argument collection.
return False
try:
sel_int = int(sel)
if sel_int == 0:
return True
if sel_int > 0 and sel_int < len(fields):
field = fields[sel_int]
if not field_fn(field):
return False
else:
print('Not a valid input (%d)!' % (sel_int))
continue
except:
print('Not a valid input! (%s, %s)' % (sel, str(sys.exc_info()[0])))
continue
# # 1) Non-message-type fields.
if len(primitive_fields) > 1:
print('%s(Primitives)' % (istr))
def primitive_fn(field):
input = raw_input('%s -> %s (%s): ' % (istr, field.name, get_type_string(field.type)))
if input == '':
# Skip this field
return True
if input == '!':
# Special-case input, end argument collection.
return False
# Simplification: assume ints or bools or strings, but not floats
if field.type == FieldDescriptor.TYPE_BOOL:
input = input.lower()
set_val = True if input == 'y' or input == 'true' or input == '1' else False
elif field.type == FieldDescriptor.TYPE_STRING:
set_val = input
else:
try:
set_val = int(input)
except:
print('Could not parse input as integer!')
return True
if field.label == FieldDescriptor.LABEL_REPEATED:
getattr(instance, field.name).extend([set_val])
else:
setattr(instance, field.name, set_val)
return True
if not table_loop(primitive_fields, primitive_fn):
return (instance, False)
# 2) Message-type fields.
if len(message_fields) > 1:
print('%s(Nested messages)' % (istr))
def message_fn(field):
sub_msg, cont = read_message(field.message_type, indent + 4)
if sub_msg is not None:
if field.label == FieldDescriptor.LABEL_REPEATED:
# Repeated field, use extend.
getattr(instance, field.name).extend([sub_msg])
else:
# Singular field, copy into.
getattr(instance, field.name).CopyFrom(sub_msg)
return cont
if not table_loop(message_fields, message_fn):
return (instance, False)
return (instance, True)
def collect_and_write(filename):
config, _ = read_message(ProfilingConfig.DESCRIPTOR, 0)
if config is not None:
with open(filename, "wb") as f:
f.write(config.SerializeToString())
def read_and_print(filename):
config = ProfilingConfig()
with open(filename, "rb") as f:
config.ParseFromString(f.read())
print config
def print_usage():
print('Usage: python perf_config_proto.py (read|write) filename')
if __name__ == "__main__":
if len(sys.argv) < 3:
print_usage()
elif sys.argv[1] == 'read':
read_and_print(sys.argv[2])
elif sys.argv[1] == 'write':
collect_and_write(sys.argv[2])
else:
print_usage()
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