diff options
| author | isanae <14251494+isanae@users.noreply.github.com> | 2020-07-18 00:35:26 -0400 |
|---|---|---|
| committer | isanae <14251494+isanae@users.noreply.github.com> | 2020-11-03 11:39:01 -0500 |
| commit | b103f297752b170ee4ade6e0e9085c6d31c020ca (patch) | |
| tree | be9c58357e069e4b5e7add1fc24016a0d44d3283 /src/singleinstance.cpp | |
| parent | a7d4f2a0c40d35d547e93994be3f92b6d43a0833 (diff) | |
added --multiple to allow launching multiple instances
Diffstat (limited to 'src/singleinstance.cpp')
| -rw-r--r-- | src/singleinstance.cpp | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/src/singleinstance.cpp b/src/singleinstance.cpp index aa62d40a..d38095df 100644 --- a/src/singleinstance.cpp +++ b/src/singleinstance.cpp @@ -28,33 +28,38 @@ static const int s_Timeout = 5000; using MOBase::reportError;
-SingleInstance::SingleInstance(bool forcePrimary, QObject *parent) :
- QObject(parent), m_PrimaryInstance(false)
+SingleInstance::SingleInstance(Flags flags, QObject *parent) :
+ QObject(parent), m_Ephemeral(false), m_OwnsSM(false)
{
m_SharedMem.setKey(s_Key);
+
if (!m_SharedMem.create(1)) {
- if (forcePrimary) {
+ if (flags.testFlag(ForcePrimary)) {
while (m_SharedMem.error() == QSharedMemory::AlreadyExists) {
Sleep(500);
if (m_SharedMem.create(1)) {
- m_PrimaryInstance = true;
+ m_OwnsSM = true;
break;
}
}
}
if (m_SharedMem.error() == QSharedMemory::AlreadyExists) {
- m_SharedMem.attach();
- m_PrimaryInstance = false;
+ if (!flags.testFlag(AllowMultiple)) {
+ m_SharedMem.attach();
+ m_Ephemeral = true;
+ }
}
+
if ((m_SharedMem.error() != QSharedMemory::NoError) &&
(m_SharedMem.error() != QSharedMemory::AlreadyExists)) {
throw MOBase::MyException(tr("SHM error: %1").arg(m_SharedMem.errorString()));
}
} else {
- m_PrimaryInstance = true;
+ m_OwnsSM = true;
}
- if (m_PrimaryInstance) {
+
+ if (m_OwnsSM) {
connect(&m_Server, SIGNAL(newConnection()), this, SLOT(receiveMessage()), Qt::QueuedConnection);
// has to be called before listen
m_Server.setSocketOptions(QLocalServer::WorldAccessOption);
@@ -65,7 +70,7 @@ SingleInstance::SingleInstance(bool forcePrimary, QObject *parent) : void SingleInstance::sendMessage(const QString &message)
{
- if (m_PrimaryInstance) {
+ if (m_OwnsSM) {
// nobody there to receive the message
return;
}
|