1/*
2 * Copyright (c) 2022-2024 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 "dm_log.h"
17#include "dm_timer.h"
18#include "dm_constants.h"
19
20namespace OHOS {
21namespace DistributedHardware {
22namespace {
23const int32_t MIN_TIME_OUT = 0;
24const int32_t MAX_TIME_OUT = 300;
25const int64_t MICROSECOND_TO_SECOND = 1000000L;
26constexpr const char* TIMER_TASK = "TimerTask";
27}
28
29DmTimer::DmTimer()
30{
31    LOGI("DmTimer constructor");
32    if (queue_ != nullptr) {
33        LOGI("Timer is already init.");
34        return;
35    }
36    queue_ = std::make_shared<ffrt::queue>(TIMER_TASK);
37}
38
39DmTimer::~DmTimer()
40{
41    LOGI("DmTimer destructor");
42    DeleteAll();
43}
44
45int32_t DmTimer::StartTimer(std::string name, int32_t timeOut, TimerCallback callback)
46{
47    if (name.empty() || timeOut <= MIN_TIME_OUT || timeOut > MAX_TIME_OUT || callback == nullptr) {
48        LOGE("DmTimer StartTimer input value invalid");
49        return ERR_DM_INPUT_PARA_INVALID;
50    }
51    CHECK_NULL_RETURN(queue_, ERR_DM_POINT_NULL);
52    LOGI("DmTimer StartTimer start name: %{public}s", name.c_str());
53    std::lock_guard<std::mutex> locker(timerMutex_);
54
55    auto taskFunc = [callback, name] () { callback(name); };
56    ffrt::task_handle handle = queue_->submit_h(taskFunc, ffrt::task_attr().delay(timeOut * MICROSECOND_TO_SECOND));
57    if (handle == nullptr) {
58        LOGE("handle is nullptr.");
59        return ERR_DM_FAILED;
60    }
61    timerVec_[name] = std::move(handle);
62    return DM_OK;
63}
64
65int32_t DmTimer::DeleteTimer(std::string timerName)
66{
67    if (timerName.empty()) {
68        LOGE("DmTimer DeleteTimer timer is null");
69        return ERR_DM_INPUT_PARA_INVALID;
70    }
71    LOGI("DmTimer DeleteTimer start name: %{public}s", timerName.c_str());
72    std::lock_guard<std::mutex> locker(timerMutex_);
73    auto item = timerVec_.find(timerName);
74    if (item == timerVec_.end()) {
75        LOGI("Invalid task.");
76        return ERR_DM_FAILED;
77    }
78    if (item->second != nullptr && queue_ != nullptr) {
79        int32_t ret = queue_->cancel(item->second);
80        if (ret != 0) {
81            LOGE("Cancel failed, errCode: %{public}d.", ret);
82        }
83    }
84    timerVec_.erase(timerName);
85    return DM_OK;
86}
87
88int32_t DmTimer::DeleteAll()
89{
90    LOGI("DmTimer DeleteAll start");
91    std::lock_guard<std::mutex> locker(timerMutex_);
92    for (const auto &name : timerVec_) {
93        if (name.second != nullptr && queue_ != nullptr) {
94            int32_t ret = queue_->cancel(name.second);
95            if (ret != 0) {
96                LOGE("Cancel failed, errCode: %{public}d.", ret);
97            }
98        }
99    }
100    timerVec_.clear();
101    return DM_OK;
102}
103}
104}