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 if (::munmap(data_, size_) != 0) {
39 WVLOG_E("Failed to unmap ashmem region");
40 }
41 data_ = nullptr;
42 size_ = 0;
43 }
44 }
45
NeedReportScene()46 bool FlowbufferAdapterImpl::NeedReportScene()
47 {
48 auto currentTime = std::chrono::system_clock::now().time_since_epoch();
49 timeStamp_ = std::chrono::duration_cast<std::chrono::milliseconds>(currentTime).count();
50 if (timeStamp_ - preTimeStamp_ > PERFORMANCE_PERIOD_MS) {
51 preTimeStamp_ = timeStamp_;
52 return true;
53 }
54 return false;
55 }
56
StartPerformanceBoost()57 void FlowbufferAdapterImpl::StartPerformanceBoost()
58 {
59 if (!NeedReportScene()) {
60 return;
61 }
62 OHOS::NWeb::ResSchedClientAdapter::ReportScene(
63 OHOS::NWeb::ResSchedStatusAdapter::WEB_SCENE_ENTER, OHOS::NWeb::ResSchedSceneAdapter::KEY_TASK);
64 }
65
CreateAshmem(size_t size,int mapType,int & fd)66 void* FlowbufferAdapterImpl::CreateAshmem(size_t size, int mapType, int& fd)
67 {
68 fd = AshmemCreate(nullptr, size);
69 if (fd < 0) {
70 WVLOG_E("Create ashmem failed, fd: %{public}d", fd);
71 return nullptr;
72 }
73
74 int result = AshmemSetProt(fd, PROT_READ | PROT_WRITE);
75 if (result < 0) {
76 close(fd);
77 fd = -1;
78 WVLOG_E("Ashmem set port failed, result: %{public}d", result);
79 return nullptr;
80 }
81
82 void *startAddr = ::mmap(nullptr, size, mapType, MAP_SHARED, fd, 0);
83 if (startAddr == MAP_FAILED) {
84 close(fd);
85 fd = -1;
86 WVLOG_E("Map ashmem failed");
87 return nullptr;
88 }
89 data_ = startAddr;
90 size_ = size;
91 return startAddr;
92 }
93
CreateAshmemWithFd(const int fd,size_t size,int mapType)94 void* FlowbufferAdapterImpl::CreateAshmemWithFd(const int fd, size_t size, int mapType)
95 {
96 if (fd < 0) {
97 WVLOG_E("CreateAshmemWithFd failed, fd: %{public}d", fd);
98 return nullptr;
99 }
100
101 int ashmemSize = AshmemGetSize(fd);
102 if (ashmemSize < 0 || size_t(ashmemSize) < size) {
103 WVLOG_E("CreateAshmemWithFd failed, ashmemSize: %{public}d, size: %{public}zu", ashmemSize, size);
104 return nullptr;
105 }
106
107 void *startAddr = ::mmap(nullptr, size, mapType, MAP_SHARED, fd, 0);
108 if (startAddr == MAP_FAILED) {
109 close(fd);
110 WVLOG_E("Map ashmem failed");
111 return nullptr;
112 }
113 data_ = startAddr;
114 size_ = size;
115 return startAddr;
116 }
117 } // namespace OHOS::NWeb
118