FluentUI/example/src/tool/IPC.h

76 lines
1.7 KiB
C
Raw Normal View History

2023-04-22 00:29:47 +08:00
#ifndef IPC_H
#define IPC_H
#include <QMap>
#include <QObject>
#include <QSharedMemory>
#include <QTimer>
#include <ctime>
#include <functional>
using IPCEventHandler = std::function<bool(const QByteArray&)>;
#define IPC_PROTOCOL_VERSION "1"
class IPC : public QObject
{
Q_OBJECT
protected:
static const int EVENT_TIMER_MS = 1000;
static const int EVENT_GC_TIMEOUT = 5;
static const int EVENT_QUEUE_SIZE = 32;
static const int OWNERSHIP_TIMEOUT_S = 5;
public:
IPC(uint32_t profileId);
~IPC();
struct IPCEvent
{
uint32_t dest;
int32_t sender;
char name[16];
char data[128];
time_t posted;
time_t processed;
uint32_t flags;
bool accepted;
bool global;
};
struct IPCMemory
{
uint64_t globalId;
time_t lastEvent;
time_t lastProcessed;
IPCEvent events[IPC::EVENT_QUEUE_SIZE];
};
time_t postEvent(const QString& name, const QByteArray& data = QByteArray(), uint32_t dest = 0);
bool isCurrentOwner();
void registerEventHandler(const QString& name, IPCEventHandler handler);
bool isEventAccepted(time_t time);
bool waitUntilAccepted(time_t time, int32_t timeout = -1);
bool isAttached() const;
public slots:
void setProfileId(uint32_t profileId);
private:
IPCMemory* global();
bool runEventHandler(IPCEventHandler handler, const QByteArray& arg);
IPCEvent* fetchEvent();
void processEvents();
bool isCurrentOwnerNoLock();
private:
QTimer timer;
uint64_t globalId;
uint32_t profileId;
QSharedMemory globalMemory;
QMap<QString, IPCEventHandler> eventHandlers;
};
#endif // IPC_H