wxWidgets/include/wx/private/fswatcher.h
Vadim Zeitlin 5cd9986613 Refactor wxEventLoopSource-related code.
Currently wxEventLoopSource can't be created directly and can only be used to
monitor file descriptors so reduce the API to just wxEventLoop::AddSourceForFD()
and remove AddSource(), RemoveSource() and RemoveAllSources() which couldn't
be implemented for all ports. This makes the code much simpler without any
loss of functionality.

Make wxEventLoopSource responsible for removing itself from the event loop
when it is deleted. This allows to remove IsOk() and Invalidate() methods
making the code simpler and gets rid of various sets/maps which were used
before.

This also allows to support event loop sources in Carbon as well: wxOSX/Carbon
now compiles and works with wxUSE_FSWATCHER==1.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62475 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2009-10-22 11:36:35 +00:00

93 lines
2.6 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/private/fswatcher.h
// Purpose: File system watcher impl classes
// Author: Bartosz Bekier
// Created: 2009-05-26
// RCS-ID: $Id$
// Copyright: (c) 2009 Bartosz Bekier <bartosz.bekier@gmail.com>
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef WX_PRIVATE_FSWATCHER_H_
#define WX_PRIVATE_FSWATCHER_H_
#include "wx/sharedptr.h"
#ifdef wxHAS_INOTIFY
class wxFSWatchEntryUnix;
#define wxFSWatchEntry wxFSWatchEntryUnix
WX_DECLARE_STRING_HASH_MAP(wxSharedPtr<wxFSWatchEntry>,wxFSWatchEntries);
#include "wx/unix/private/fswatcher_inotify.h"
#elif defined(wxHAS_KQUEUE)
class wxFSWatchEntryKq;
#define wxFSWatchEntry wxFSWatchEntryKq
WX_DECLARE_STRING_HASH_MAP(wxSharedPtr<wxFSWatchEntry>,wxFSWatchEntries);
#include "wx/unix/private/fswatcher_kqueue.h"
#elif defined(__WXMSW__)
class wxFSWatchEntryMSW;
#define wxFSWatchEntry wxFSWatchEntryMSW
WX_DECLARE_STRING_HASH_MAP(wxSharedPtr<wxFSWatchEntry>,wxFSWatchEntries);
#include "wx/msw/private/fswatcher.h"
#else
#define wxFSWatchEntry wxFSWatchEntryPolling
#endif
class wxFSWatcherImpl
{
public:
wxFSWatcherImpl(wxFileSystemWatcherBase* watcher) :
m_watcher(watcher)
{
}
virtual ~wxFSWatcherImpl()
{
(void) RemoveAll();
}
virtual bool Init() = 0;
virtual bool Add(const wxFSWatchInfo& winfo)
{
wxCHECK_MSG( m_watches.find(winfo.GetPath()) == m_watches.end(), false,
"Path '%s' is already watched");
// construct watch entry
wxSharedPtr<wxFSWatchEntry> watch(new wxFSWatchEntry(winfo));
if (!DoAdd(watch))
return false;
// add watch to our map (always succeedes, checked above)
wxFSWatchEntries::value_type val(watch->GetPath(), watch);
return m_watches.insert(val).second;
}
virtual bool Remove(const wxFSWatchInfo& winfo)
{
wxFSWatchEntries::iterator it = m_watches.find(winfo.GetPath());
wxCHECK_MSG( it != m_watches.end(), false, "Path '%s' is not watched");
wxSharedPtr<wxFSWatchEntry> watch = it->second;
m_watches.erase(it);
return DoRemove(watch);
}
virtual bool RemoveAll()
{
m_watches.clear();
return true;
}
protected:
virtual bool DoAdd(wxSharedPtr<wxFSWatchEntry> watch) = 0;
virtual bool DoRemove(wxSharedPtr<wxFSWatchEntry> watch) = 0;
wxFSWatchEntries m_watches;
wxFileSystemWatcherBase* m_watcher;
};
#endif /* WX_PRIVATE_FSWATCHER_H_ */