diff options
| author | isanae <14251494+isanae@users.noreply.github.com> | 2020-11-08 22:09:42 -0500 |
|---|---|---|
| committer | isanae <14251494+isanae@users.noreply.github.com> | 2020-11-08 22:09:42 -0500 |
| commit | d7ae42d3775f88d5cd63fa2f8860bd31e18f981e (patch) | |
| tree | c7b5852b28a1a96be7f76b73df70ba9440cf6ff7 /src/multiprocess.h | |
| parent | a5469ae4e0668c36e4bf36bf7395fa25073b0bc6 (diff) | |
renamed singleinstance.h/cpp to multiprocess.h/cpp
Diffstat (limited to 'src/multiprocess.h')
| -rw-r--r-- | src/multiprocess.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/multiprocess.h b/src/multiprocess.h new file mode 100644 index 00000000..810e63d2 --- /dev/null +++ b/src/multiprocess.h @@ -0,0 +1,70 @@ +#ifndef MODORGANIZER_MOMULTIPROCESS_INCLUDED
+#define MODORGANIZER_MOMULTIPROCESS_INCLUDED
+
+#include <QObject>
+#include <QSharedMemory>
+#include <QLocalServer>
+
+
+/**
+ * used to ensure only a single process of Mod Organizer is started and to
+ * allow ephemeral processes to send messages to the primary (visible) one.
+ * This way, other processes can start a download in the primary one
+ **/
+class MOMultiProcess : public QObject
+{
+ Q_OBJECT
+
+public:
+ // `allowMultiple`: if another process is running, run this one
+ // disconnected from the shared memory
+ explicit MOMultiProcess(bool allowMultiple, QObject *parent = 0);
+
+ /**
+ * @return true if this process's job is to forward data to the primary
+ * process through shared memory
+ **/
+ bool ephemeral() const
+ {
+ return m_Ephemeral;
+ }
+
+ // returns true if this is not the primary process, but was allowed because
+ // of the AllowMultiple flag
+ //
+ bool secondary() const
+ {
+ return !m_Ephemeral && !m_OwnsSM;
+ }
+
+ /**
+ * send a message to the primary process. This can be used to transmit download urls
+ *
+ * @param message message to send
+ **/
+ void sendMessage(const QString &message);
+
+signals:
+
+ /**
+ * @brief emitted when an ephemeral process has sent a message (to us)
+ *
+ * @param message the message we received
+ **/
+ void messageSent(const QString &message);
+
+public slots:
+
+private slots:
+
+ void receiveMessage();
+
+private:
+ bool m_Ephemeral;
+ bool m_OwnsSM;
+ QSharedMemory m_SharedMem;
+ QLocalServer m_Server;
+
+};
+
+#endif // MODORGANIZER_MOMULTIPROCESS_INCLUDED
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