108 lines
4.0 KiB
C++
108 lines
4.0 KiB
C++
/*
|
|
* This file is part of RawTherapee.
|
|
*
|
|
* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
|
|
*
|
|
* RawTherapee is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* RawTherapee is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with RawTherapee. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <windirmonitor.h>
|
|
#include <options.h>
|
|
|
|
static void CALLBACK current_directory_monitor_callback (DWORD error, DWORD nBytes, LPOVERLAPPED lpOverlapped) {
|
|
DWORD dwOffset = 0;
|
|
FILE_NOTIFY_INFORMATION* pInfo = NULL;
|
|
|
|
WinDirMonitor::MonitorData* monData = (WinDirMonitor::MonitorData*)lpOverlapped;
|
|
if (!nBytes) {
|
|
delete monData;
|
|
return;
|
|
}
|
|
|
|
bool notify = false;
|
|
// Analysis of the modifications
|
|
do {
|
|
Glib::ustring fname = "";
|
|
int strLen = 0;
|
|
|
|
// Get a pointer to the first change record...
|
|
pInfo = (FILE_NOTIFY_INFORMATION*) &monData->file_notify_buffer[dwOffset];
|
|
|
|
char fnameC[(MAX_PATH+1)*2] = {0};
|
|
strLen = WideCharToMultiByte(CP_UTF8,0,pInfo->FileName,pInfo->FileNameLength/sizeof(WCHAR),fnameC,sizeof(fnameC),0,0);
|
|
fnameC[strLen] = 0;
|
|
fname = fnameC;
|
|
|
|
// See http://msdn.microsoft.com/en-us/library/aa364391(v=vs.85).aspx for available event type if necessary
|
|
if (options.has_retained_extention(fname))
|
|
notify = true;
|
|
|
|
// More than one change may happen at the same time. Load the next change and continue...
|
|
dwOffset += pInfo->NextEntryOffset;
|
|
}
|
|
while (pInfo->NextEntryOffset != 0);
|
|
|
|
// ReadDirectoryChangesW sometimes emits multiple events per change (one for each change type)
|
|
// To make sure it's not flooding update, this gets filtered.
|
|
time_t curTime= ::time(NULL);
|
|
if (notify && monData->listener && ::difftime(curTime, monData->lastTimeUpdateDir)>1.0) {
|
|
monData->listener->winDirChanged ();
|
|
monData->lastTimeUpdateDir = curTime;
|
|
}
|
|
|
|
ReadDirectoryChangesW (monData->hDirectory,
|
|
monData->file_notify_buffer,
|
|
monData->buffer_allocated_bytes,
|
|
FALSE,
|
|
FILE_NOTIFY_CHANGE_FILE_NAME |
|
|
FILE_NOTIFY_CHANGE_DIR_NAME |
|
|
FILE_NOTIFY_CHANGE_LAST_WRITE,
|
|
&monData->buffer_filled_bytes,
|
|
&monData->overlapped,
|
|
current_directory_monitor_callback);
|
|
}
|
|
|
|
WinDirMonitor::WinDirMonitor (Glib::ustring dirName, WinDirChangeListener* listener) : monData(NULL) {
|
|
wchar_t* wdirname = (wchar_t*)g_utf8_to_utf16 (dirName.c_str(), -1, NULL, NULL, NULL);
|
|
HANDLE hDirectory = CreateFileW (wdirname, FILE_LIST_DIRECTORY,FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED, NULL);
|
|
g_free (wdirname);
|
|
|
|
if (hDirectory != INVALID_HANDLE_VALUE) {
|
|
|
|
monData = new MonitorData ();
|
|
monData->listener = listener;
|
|
monData->buffer_allocated_bytes = 32768;
|
|
monData->file_notify_buffer = new char [monData->buffer_allocated_bytes];
|
|
monData->hDirectory = hDirectory;
|
|
monData->lastTimeUpdateDir = ::time(NULL);
|
|
|
|
// printf ("mondata=%d\n", monData);
|
|
ReadDirectoryChangesW (monData->hDirectory,
|
|
monData->file_notify_buffer,
|
|
monData->buffer_allocated_bytes,
|
|
FALSE,
|
|
FILE_NOTIFY_CHANGE_FILE_NAME |
|
|
FILE_NOTIFY_CHANGE_DIR_NAME |
|
|
FILE_NOTIFY_CHANGE_LAST_WRITE,
|
|
&monData->buffer_filled_bytes,
|
|
&monData->overlapped,
|
|
current_directory_monitor_callback);
|
|
}
|
|
}
|
|
|
|
WinDirMonitor::~WinDirMonitor () {
|
|
|
|
if (monData && monData->hDirectory != INVALID_HANDLE_VALUE)
|
|
CloseHandle (monData->hDirectory);
|
|
}
|