1 /*
2 * Copyright (c) 2023 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 #include "tm/cpu_task.h"
16 #include <securec.h>
17 #include "dfx/trace_record/ffrt_trace_record.h"
18 #include "dm/dependence_manager.h"
19
20 #include "internal_inc/osal.h"
21 #include "tm/task_factory.h"
22 #include "util/ffrt_facade.h"
23 #include "util/slab.h"
24
25 namespace {
26 const int TSD_SIZE = 128;
27 }
28
29 namespace ffrt {
SetQos(const QoS & newQos)30 void CPUEUTask::SetQos(const QoS& newQos)
31 {
32 if (newQos == qos_inherit) {
33 if (!this->IsRoot()) {
34 this->qos = parent->qos;
35 } else {
36 this->qos = QoS();
37 }
38 FFRT_LOGD("Change task %s QoS %d", label.c_str(), this->qos());
39 } else {
40 this->qos = newQos;
41 }
42 }
43
FreeMem()44 void CPUEUTask::FreeMem()
45 {
46 BboxCheckAndFreeze();
47 FFRTFacade::GetPPInstance().GetPoller(qos).ClearCachedEvents(this);
48 #ifdef FFRT_TASK_LOCAL_ENABLE
49 TaskTsdDeconstruct(this);
50 #endif
51 ffrt::TaskFactory::Free(this);
52 }
53
Execute()54 void CPUEUTask::Execute()
55 {
56 FFRT_LOGD("Execute task[%lu], name[%s]", gid, label.c_str());
57 FFRTTraceRecord::TaskExecute(&(this->executeTime));
58 UpdateState(TaskState::RUNNING);
59 auto f = reinterpret_cast<ffrt_function_header_t*>(func_storage);
60 auto exp = ffrt::SkipStatus::SUBMITTED;
61 if (likely(__atomic_compare_exchange_n(&skipped, &exp, ffrt::SkipStatus::EXECUTED, 0,
62 __ATOMIC_ACQUIRE, __ATOMIC_RELAXED))) {
63 f->exec(f);
64 }
65 f->destroy(f);
66 FFRT_TASKDONE_MARKER(gid);
67 if (!USE_COROUTINE) {
68 this->UpdateState(ffrt::TaskState::EXITED);
69 } else {
70 this->coRoutine->isTaskDone = true;
71 }
72 }
73
CPUEUTask(const task_attr_private * attr,CPUEUTask * parent,const uint64_t & id,const QoS & qos)74 CPUEUTask::CPUEUTask(const task_attr_private *attr, CPUEUTask *parent, const uint64_t &id,
75 const QoS &qos)
76 : parent(parent), rank(id), qos(qos)
77 {
78 fq_we.task = this;
79 if (attr && !attr->name_.empty()) {
80 label = attr->name_;
81 } else if (IsRoot()) {
82 label = "root";
83 } else if (parent->IsRoot()) {
84 label = "t" + std::to_string(rank);
85 } else {
86 label = parent->label + "." + std::to_string(rank);
87 }
88 if (!IsRoot()) {
89 FFRT_SUBMIT_MARKER(label, gid);
90 }
91
92 taskLocal = false;
93 tsd = nullptr;
94 if (attr && attr->taskLocal_) {
95 tsd = (void **)malloc(TSD_SIZE * sizeof(void *));
96 if (unlikely(tsd == nullptr)) {
97 FFRT_LOGE("task local malloc tsd failed");
98 return;
99 }
100 memset_s(tsd, TSD_SIZE * sizeof(void *), 0, TSD_SIZE * sizeof(void *));
101 taskLocal = attr->taskLocal_;
102 }
103 if (attr) {
104 stack_size = std::max(attr->stackSize_, MIN_STACK_SIZE);
105 }
106 }
107 } /* namespace ffrt */