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/////////////////////////////////////////////////////////////////////////////
// Name: wx/private/fswatcher.h
// Purpose: File system watcher impl classes
// Author: Bartosz Bekier
// Created: 2009-05-26
// 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(__WINDOWS__)
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)
{
if ( m_watches.find(winfo.GetPath()) != m_watches.end() )
{
wxLogTrace(wxTRACE_FSWATCHER,
"Path '%s' is already watched", winfo.GetPath());
// This can happen if a dir is watched, then a parent tree added
return true;
}
// 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());
if ( it == m_watches.end() )
{
wxLogTrace(wxTRACE_FSWATCHER,
"Path '%s' is not watched", winfo.GetPath());
// This can happen if a dir is watched, then a parent tree added
return true;
}
wxSharedPtr<wxFSWatchEntry> watch = it->second;
m_watches.erase(it);
return DoRemove(watch);
}
virtual bool RemoveAll()
{
bool ret = true;
for ( wxFSWatchEntries::iterator it = m_watches.begin();
it != m_watches.end();
++it )
{
if ( !DoRemove(it->second) )
ret = false;
}
m_watches.clear();
return ret;
}
// Check whether any filespec matches the file's ext (if present)
bool MatchesFilespec(const wxFileName& fn, const wxString& filespec) const
{
return filespec.empty() || wxMatchWild(filespec, fn.GetFullName());
}
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_ */
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