1 /*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "flowbuffer_adapter_impl.h"
17
18 #include <cstring>
19 #include <sys/mman.h>
20
21 #include "ashmem.h"
22 #include "nweb_log.h"
23 #include "ohos_adapter_helper.h"
24 #include "res_sched_client_adapter.h"
25 #include "securec.h"
26
27 namespace OHOS::NWeb {
28 namespace {
29 const int64_t PERFORMANCE_PERIOD_MS = 300;
30 }
31
32 int64_t FlowbufferAdapterImpl::timeStamp_ = 0;
33 int64_t FlowbufferAdapterImpl::preTimeStamp_ = 0;
34
~FlowbufferAdapterImpl()35 FlowbufferAdapterImpl::~FlowbufferAdapterImpl()
36 {
37 if (data_ != nullptr) {
38 ::munmap(data_, size_);
39 data_ = nullptr;
40 size_ = 0;
41 }
42 }
43
NeedReportScene()44 bool FlowbufferAdapterImpl::NeedReportScene()
45 {
46 auto currentTime = std::chrono::system_clock::now().time_since_epoch();
47 timeStamp_ = std::chrono::duration_cast<std::chrono::milliseconds>(currentTime).count();
48 if (timeStamp_ - preTimeStamp_ > PERFORMANCE_PERIOD_MS) {
49 preTimeStamp_ = timeStamp_;
50 return true;
51 }
52 return false;
53 }
54
StartPerformanceBoost()55 void FlowbufferAdapterImpl::StartPerformanceBoost()
56 {
57 if (!NeedReportScene()) {
58 return;
59 }
60 OHOS::NWeb::ResSchedClientAdapter::ReportScene(
61 OHOS::NWeb::ResSchedStatusAdapter::WEB_SCENE_ENTER, OHOS::NWeb::ResSchedSceneAdapter::KEY_TASK);
62 }
63
CreateAshmem(size_t size,int mapType,int & fd)64 void* FlowbufferAdapterImpl::CreateAshmem(size_t size, int mapType, int& fd)
65 {
66 fd = AshmemCreate(nullptr, size);
67 if (fd < 0) {
68 WVLOG_E("Create ashmem failed, fd: %{public}d", fd);
69 return nullptr;
70 }
71
72 int result = AshmemSetProt(fd, PROT_READ | PROT_WRITE);
73 if (result < 0) {
74 close(fd);
75 WVLOG_E("Ashmem set port failed, result: %{public}d", result);
76 return nullptr;
77 }
78
79 void *startAddr = ::mmap(nullptr, size, mapType, MAP_SHARED, fd, 0);
80 if (startAddr == MAP_FAILED) {
81 close(fd);
82 WVLOG_E("Map ashmem failed");
83 return nullptr;
84 }
85 data_ = startAddr;
86 size_ = size;
87 return startAddr;
88 }
89
CreateAshmemWithFd(const int fd,size_t size,int mapType)90 void* FlowbufferAdapterImpl::CreateAshmemWithFd(const int fd, size_t size, int mapType)
91 {
92 if (fd < 0) {
93 WVLOG_E("CreateAshmemWithFd failed, fd: %{public}d", fd);
94 return nullptr;
95 }
96
97 int ashmemSize = AshmemGetSize(fd);
98 if (ashmemSize < 0 || size_t(ashmemSize) < size) {
99 WVLOG_E("CreateAshmemWithFd failed, ashmemSize: %{public}d, size: %{public}zu", ashmemSize, size);
100 return nullptr;
101 }
102
103 void *startAddr = ::mmap(nullptr, size, mapType, MAP_SHARED, fd, 0);
104 if (startAddr == MAP_FAILED) {
105 close(fd);
106 WVLOG_E("Map ashmem failed");
107 return nullptr;
108 }
109 data_ = startAddr;
110 size_ = size;
111 return startAddr;
112 }
113 } // namespace OHOS::NWeb
114