mirror of https://github.com/ARMmbed/mbed-os.git
89 lines
1.9 KiB
C++
89 lines
1.9 KiB
C++
/*
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* Copyright (c) 2018-2019, Arm Limited and affiliates.
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "OperationListBase.h"
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#include "AsyncOp.h"
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#include "mbed_assert.h"
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OperationListBase::OperationListBase()
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{
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}
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OperationListBase::~OperationListBase()
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{
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remove_all();
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}
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bool OperationListBase::empty()
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{
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return _list.head() == NULL;
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}
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void OperationListBase::add(AsyncOp *op)
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{
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bool was_empty = _list.head() == NULL;
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op->_list = this;
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_list.enqueue(op);
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if (was_empty) {
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process();
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}
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}
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void OperationListBase::process()
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{
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while (true) {
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AsyncOp *op = static_cast<AsyncOp *>(_list.head());
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if (op == NULL) {
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// List empty, nothing left to do
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break;
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}
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if (!op->process()) {
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// Processing is in progress
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break;
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}
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_list.dequeue();
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op->complete();
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}
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}
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void OperationListBase::remove(AsyncOp *op)
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{
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bool head = _list.head() == op;
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_list.remove(op);
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if (head) {
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process();
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}
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}
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AsyncOp *OperationListBase::dequeue_raw()
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{
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return static_cast<AsyncOp *>(_list.dequeue());
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}
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void OperationListBase::remove_all()
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{
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while (true) {
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AsyncOp *op = static_cast<AsyncOp *>(_list.head());
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if (op == NULL) {
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// List empty, nothing left to do
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break;
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}
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op->complete();
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}
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}
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