116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/private/fswatcher.h
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// Purpose: File system watcher impl classes
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// Author: Bartosz Bekier
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// Created: 2009-05-26
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// Copyright: (c) 2009 Bartosz Bekier <bartosz.bekier@gmail.com>
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef WX_PRIVATE_FSWATCHER_H_
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#define WX_PRIVATE_FSWATCHER_H_
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#include "wx/sharedptr.h"
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#ifdef wxHAS_INOTIFY
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class wxFSWatchEntryUnix;
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#define wxFSWatchEntry wxFSWatchEntryUnix
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WX_DECLARE_STRING_HASH_MAP(wxSharedPtr<wxFSWatchEntry>,wxFSWatchEntries);
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#include "wx/unix/private/fswatcher_inotify.h"
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#elif defined(wxHAS_KQUEUE)
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class wxFSWatchEntryKq;
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#define wxFSWatchEntry wxFSWatchEntryKq
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WX_DECLARE_STRING_HASH_MAP(wxSharedPtr<wxFSWatchEntry>,wxFSWatchEntries);
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#include "wx/unix/private/fswatcher_kqueue.h"
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#elif defined(__WINDOWS__)
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class wxFSWatchEntryMSW;
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#define wxFSWatchEntry wxFSWatchEntryMSW
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WX_DECLARE_STRING_HASH_MAP(wxSharedPtr<wxFSWatchEntry>,wxFSWatchEntries);
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#include "wx/msw/private/fswatcher.h"
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#else
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#define wxFSWatchEntry wxFSWatchEntryPolling
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#endif
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class wxFSWatcherImpl
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{
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public:
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wxFSWatcherImpl(wxFileSystemWatcherBase* watcher) :
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m_watcher(watcher)
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{
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}
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virtual ~wxFSWatcherImpl()
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{
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(void) RemoveAll();
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}
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virtual bool Init() = 0;
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virtual bool Add(const wxFSWatchInfo& winfo)
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{
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if ( m_watches.find(winfo.GetPath()) != m_watches.end() )
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{
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wxLogTrace(wxTRACE_FSWATCHER,
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"Path '%s' is already watched", winfo.GetPath());
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// This can happen if a dir is watched, then a parent tree added
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return true;
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}
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// construct watch entry
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wxSharedPtr<wxFSWatchEntry> watch(new wxFSWatchEntry(winfo));
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if (!DoAdd(watch))
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return false;
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// add watch to our map (always succeedes, checked above)
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wxFSWatchEntries::value_type val(watch->GetPath(), watch);
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return m_watches.insert(val).second;
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}
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virtual bool Remove(const wxFSWatchInfo& winfo)
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{
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wxFSWatchEntries::iterator it = m_watches.find(winfo.GetPath());
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if ( it == m_watches.end() )
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{
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wxLogTrace(wxTRACE_FSWATCHER,
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"Path '%s' is not watched", winfo.GetPath());
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// This can happen if a dir is watched, then a parent tree added
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return true;
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}
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wxSharedPtr<wxFSWatchEntry> watch = it->second;
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m_watches.erase(it);
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return DoRemove(watch);
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}
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virtual bool RemoveAll()
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{
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bool ret = true;
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for ( wxFSWatchEntries::iterator it = m_watches.begin();
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it != m_watches.end();
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++it )
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{
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if ( !DoRemove(it->second) )
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ret = false;
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}
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m_watches.clear();
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return ret;
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}
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// Check whether any filespec matches the file's ext (if present)
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bool MatchesFilespec(const wxFileName& fn, const wxString& filespec) const
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{
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return filespec.empty() || wxMatchWild(filespec, fn.GetFullName());
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}
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protected:
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virtual bool DoAdd(wxSharedPtr<wxFSWatchEntry> watch) = 0;
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virtual bool DoRemove(wxSharedPtr<wxFSWatchEntry> watch) = 0;
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wxFSWatchEntries m_watches;
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wxFileSystemWatcherBase* m_watcher;
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};
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#endif /* WX_PRIVATE_FSWATCHER_H_ */
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