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Fix QPromise snippets: use QScopePointer instead of QPointer

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Change-Id: I2b863e43eb227a80ded3422ca57bd5f5d4209858
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
This commit is contained in:
Andrei Golubev 2020-08-25 14:25:22 +02:00
parent 967f2fbfad
commit afd34d74b8
1 changed files with 7 additions and 7 deletions
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14
tests/auto/corelib/thread/qpromise/snippet_qpromise.cpp
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@ -58,7 +58,7 @@
#include <qfuture.h>
#include <qfuturewatcher.h>
#include <qpromise.h>
#include <qpointer.h>
#include <qscopedpointer.h>
#include <qsharedpointer.h>
class snippet_QPromise
@ -79,7 +79,7 @@ void snippet_QPromise::basicExample()
// of calls: first promise.reportStarted() then future.waitForFinished()
promise.reportStarted(); // notifies QFuture that the computation is started
QPointer<QThread> thread(QThread::create([] (QPromise<int> promise) {
QScopedPointer<QThread> thread(QThread::create([] (QPromise<int> promise) {
promise.addResult(42);
promise.reportFinished(); // notifies QFuture that the computation is finished
}, std::move(promise)));
@ -106,14 +106,14 @@ void snippet_QPromise::multithreadExample()
//! [multithread_main]
// here, QPromise is shared between threads via a smart pointer
QPointer<QThread> threads[] = {
QPointer<QThread>(QThread::create([] (auto sharedPromise) {
QScopedPointer<QThread> threads[] = {
QScopedPointer<QThread>(QThread::create([] (auto sharedPromise) {
sharedPromise->addResult(0, 0); // adds value 0 by index 0
}, sharedPromise)),
QPointer<QThread>(QThread::create([] (auto sharedPromise) {
QScopedPointer<QThread>(QThread::create([] (auto sharedPromise) {
sharedPromise->addResult(-1, 1); // adds value -1 by index 1
}, sharedPromise)),
QPointer<QThread>(QThread::create([] (auto sharedPromise) {
QScopedPointer<QThread>(QThread::create([] (auto sharedPromise) {
sharedPromise->addResult(-2, 2); // adds value -2 by index 2
}, sharedPromise)),
// ...
@ -147,7 +147,7 @@ void snippet_QPromise::suspendExample()
promise.reportStarted();
// Start a computation thread that supports suspension and cancellation
QPointer<QThread> thread(QThread::create([] (QPromise<int> promise) {
QScopedPointer<QThread> thread(QThread::create([] (QPromise<int> promise) {
for (int i = 0; i < 100; ++i) {
promise.addResult(i);
promise.suspendIfRequested(); // support suspension