1 /*
2  * Copyright (C) 2020 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "perfetto/ext/trace_processor/importers/memory_tracker/memory_allocator_node_id.h"
18 
19 #include <inttypes.h>
20 #include <stdio.h>
21 
22 #include "perfetto/base/logging.h"
23 
24 namespace perfetto {
25 namespace trace_processor {
26 
MemoryAllocatorNodeId(uint64_t id)27 MemoryAllocatorNodeId::MemoryAllocatorNodeId(uint64_t id) : id_(id) {}
28 
MemoryAllocatorNodeId()29 MemoryAllocatorNodeId::MemoryAllocatorNodeId() : MemoryAllocatorNodeId(0u) {}
30 
ToString() const31 std::string MemoryAllocatorNodeId::ToString() const {
32   size_t max_size = 19;  // Max uint64 is 0xFFFFFFFFFFFFFFFF + 1 for null byte.
33   std::string buf;
34   buf.resize(max_size);
35   auto final_size = snprintf(&buf[0], max_size, "%" PRIu64, id_);
36   PERFETTO_DCHECK(final_size >= 0);
37   buf.resize(static_cast<size_t>(final_size));  // Cuts off the final null byte.
38   return buf;
39 }
40 
41 }  // namespace trace_processor
42 }  // namespace perfetto
43