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1#!/usr/bin/env python3
2# -*- coding: utf-8 -*-
3"""
4Copyright (c) 2024 Huawei Device Co., Ltd.
5Licensed under the Apache License, Version 2.0 (the "License");
6you may not use this file except in compliance with the License.
7You may obtain a copy of the License at
8
9    http://www.apache.org/licenses/LICENSE-2.0
10
11Unless required by applicable law or agreed to in writing, software
12distributed under the License is distributed on an "AS IS" BASIS,
13WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14See the License for the specific language governing permissions and
15limitations under the License.
16
17Description: Python HeapProfiler Domain Interfaces
18"""
19
20import sys
21import json
22from pathlib import Path
23
24sys.path.append(str(Path(__file__).parent.parent)) # add aw path to sys.path
25
26from all_utils import CommonUtils
27from implement_api.protocol_api import ProtocolImpl
28from cdp import heap_profiler
29from customized_types import ProtocolType
30
31comm_with_debugger_server = CommonUtils.communicate_with_debugger_server
32
33
34class HeapProfilerImpl(ProtocolImpl):
35
36    def __init__(self, id_generator, websocket):
37        super().__init__(id_generator, websocket)
38        self.dispatch_table = {"startTrackingHeapObjects": (self.start_tracking_heap_objects, ProtocolType.send),
39                               "stopTrackingHeapObjects": (self.stop_tracking_heap_objects, ProtocolType.send),
40                               "takeHeapSnapshot": (self.take_heap_snapshot, ProtocolType.send),
41                               "startSampling": (self.start_sampling, ProtocolType.send),
42                               "stopSampling": (self.stop_sampling, ProtocolType.send)}
43
44    async def start_tracking_heap_objects(self, message_id, connection, params):
45        response = await comm_with_debugger_server(self.websocket, connection,
46                                                   heap_profiler.start_tracking_heap_objects(params), message_id)
47        CommonUtils.assert_equal(json.loads(response), {"id": message_id, "result": {}})
48
49    async def stop_tracking_heap_objects(self, message_id, connection, params):
50        response = await comm_with_debugger_server(self.websocket, connection,
51                                                   heap_profiler.stop_tracking_heap_objects(), message_id)
52        while response.startswith('{"method":"HeapProfiler.lastSeenObjectId"') \
53                or response.startswith('{"method":"HeapProfiler.heapStatsUpdate"'):
54            response = await self.websocket.recv_msg_of_debugger_server(connection.instance_id,
55                                                                        connection.received_msg_queue)
56        assert r'\"location_fields\":[\"object_index\",\"script_id\",\"line\",\"column\"]' in response, \
57            f'\"location_fields\":[\"object_index\",\"script_id\",\"line\",\"column\"] not in {response}'
58        pre_response = response
59        while response.startswith('{"method":"HeapProfiler.addHeapSnapshotChunk"') \
60                or response.startswith('{"method":"HeapProfiler.lastSeenObjectId"') \
61                or response.startswith('{"method":"HeapProfiler.heapStatsUpdate"'):
62            if response.startswith('{"method":"HeapProfiler.addHeapSnapshotChunk"'):
63                pre_response = response
64            response = await self.websocket.recv_msg_of_debugger_server(connection.instance_id,
65                                                                        connection.received_msg_queue)
66        assert pre_response.endswith(r'\n]\n}\n"}}'), 'This is not the last message of addHeapSnapshotChunk'
67        CommonUtils.assert_equal(json.loads(response), {"id": message_id, "result": {}})
68
69    async def take_heap_snapshot(self, message_id, connection, params):
70        response = await comm_with_debugger_server(self.websocket, connection,
71                                                   heap_profiler.take_heap_snapshot(), message_id)
72        assert r'\"location_fields\":[\"object_index\",\"script_id\",\"line\",\"column\"]' in response, \
73            'This is not the last message of addHeapSnapshotChunk'
74        pre_response = response
75        while response.startswith('{"method":"HeapProfiler.addHeapSnapshotChunk"'):
76            pre_response = response
77            response = await self.websocket.recv_msg_of_debugger_server(connection.instance_id,
78                                                                        connection.received_msg_queue)
79        assert pre_response.endswith(r'\n]\n}\n"}}'), 'This is not the last message of addHeapSnapshotChunk'
80        CommonUtils.assert_equal(json.loads(response), {"id": message_id, "result": {}})
81
82    async def start_sampling(self, message_id, connection, params):
83        response = await comm_with_debugger_server(self.websocket, connection,
84                                                   heap_profiler.start_sampling(), message_id)
85        CommonUtils.assert_equal(json.loads(response), {"id": message_id, "result": {}})
86
87    async def stop_sampling(self, message_id, connection, params):
88        response = await comm_with_debugger_server(self.websocket, connection,
89                                                   heap_profiler.stop_sampling(), message_id)
90        response = json.loads(response)
91        CommonUtils.assert_equal(response['id'], message_id)
92        return response
93