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ProjectExplorer: Rework the build step run interface

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Originally, the build manager used to run all build steps in a dedicated
thread. Communication between the step and the manager happened via a
QFutureInterface that was passed into the step's run() function.
Later, new steps were added that operated asynchronously, so the build
manager had to differentiate between the different kinds of steps for
starting and stopping.
These days, almost all build and deploy steps work asynchronously, which
made the QFuture-based interface look increasingly odd.
With this patch, all build steps are expected to work asynchronously, so
the build manager no longer needs to differentiate. Steps are started
and requested to stop via the run() and cancel() functions,
respectively, and emit the finished() signal when they are done. Build
step implementors no longer have to deal with a QFutureInterface. For
steps whose implementation is inherently synchronous, the BuildStep base
class offers a runInThread() function.

Change-Id: If905c68b234c5a669f6e19f43142eaa57d594803
Reviewed-by: hjk <hjk@qt.io>
This commit is contained in:
Christian Kandeler
2019-01-25 14:26:34 +01:00
parent 536618b012
commit 966f4ea6a9
52 changed files with 355 additions and 399 deletions
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12
src/plugins/android/androidavdmanager.cpp
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@@ -327,17 +327,18 @@ QString AndroidAvdManager::findAvd(const QString &avdName) const
return QString();
}
QString AndroidAvdManager::waitForAvd(const QString &avdName, const QFutureInterface<bool> &fi) const
QString AndroidAvdManager::waitForAvd(const QString &avdName,
const std::function<bool()> &cancelChecker) const
{
// we cannot use adb -e wait-for-device, since that doesn't work if a emulator is already running
// 60 rounds of 2s sleeping, two minutes for the avd to start
QString serialNumber;
for (int i = 0; i < 60; ++i) {
if (fi.isCanceled())
if (cancelChecker())
return QString();
serialNumber = findAvd(avdName);
if (!serialNumber.isEmpty())
return waitForBooted(serialNumber, fi) ? serialNumber : QString();
return waitForBooted(serialNumber, cancelChecker) ? serialNumber : QString();
QThread::sleep(2);
}
return QString();
@@ -358,11 +359,12 @@ bool AndroidAvdManager::isAvdBooted(const QString &device) const
return value == "stopped";
}
bool AndroidAvdManager::waitForBooted(const QString &serialNumber, const QFutureInterface<bool> &fi) const
bool AndroidAvdManager::waitForBooted(const QString &serialNumber,
const std::function<bool()> &cancelChecker) const
{
// found a serial number, now wait until it's done booting...
for (int i = 0; i < 60; ++i) {
if (fi.isCanceled())
if (cancelChecker())
return false;
if (isAvdBooted(serialNumber)) {
return true;