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