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enhancled the App class to support per-instance signal handler

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hyung-hwan
2018-08-31 09:39:12 +00:00
parent f6c60f3c46
commit bb7a03bbc5
3 changed files with 242 additions and 24 deletions
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52
qse/include/qse/si/App.hpp
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@ -38,8 +38,8 @@ QSE_BEGIN_NAMESPACE(QSE)
class App: public Uncopyable, public Types, public Mmged
{
public:
App (Mmgr* mmgr) QSE_CPP_NOEXCEPT: Mmged(mmgr), _root_only(false) {}
~App () QSE_CPP_NOEXCEPT {}
App (Mmgr* mmgr) QSE_CPP_NOEXCEPT;
virtual ~App () QSE_CPP_NOEXCEPT;
int daemonize (bool chdir_to_root = true, int fork_count = 1) QSE_CPP_NOEXCEPT;
@ -51,14 +51,62 @@ public:
int restoreUser () QSE_CPP_NOEXCEPT;
#endif
virtual void on_signal (int sig) { }
protected:
bool _root_only;
private:
App* _prev_app;
App* _next_app;
public:
struct _SigLink
{
enum
{
UNHANDLED,
ACCEPTED,
IGNORED // handled but ignored
};
_SigLink(): _prev(QSE_NULL), _next(QSE_NULL), _state(UNHANDLED) {}
App* _prev;
App* _next;
int _state;
};
_SigLink _sig[QSE_NSIGS];
public:
typedef void (*SignalHandler) (int sig);
static int setSignalHandler (int sig, SignalHandler sighr);
static int unsetSignalHandler (int sig);
static qse_size_t _sighrs[2][QSE_NSIGS];
void handleSignal (int sig, bool accept);
void unhandleSignal (int sig);
};
// functor as a template parameter
template <typename F>
class QSE_EXPORT AppF: public App
{
public:
AppF (Mmgr* mmgr = QSE_NULL) QSE_CPP_NOEXCEPT: App(mmgr) {}
AppF (const F& f, Mmgr* mmgr = QSE_NULL) QSE_CPP_NOEXCEPT: App(mmgr), __lfunc(f) {}
#if defined(QSE_CPP_ENABLE_CPP11_MOVE)
AppF (F&& f, Mmgr* mmgr = QSE_NULL) QSE_CPP_NOEXCEPT: App(mmgr), __lfunc(QSE_CPP_RVREF(f)) {}
#endif
protected:
F __lfunc;
void on_signal (int sig)
{
this->__lfunc(this, sig);
}
};
/////////////////////////////////