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-rw-r--r--RealtimeSync/watcher.cpp202
1 files changed, 0 insertions, 202 deletions
diff --git a/RealtimeSync/watcher.cpp b/RealtimeSync/watcher.cpp
deleted file mode 100644
index 6ef5e924..00000000
--- a/RealtimeSync/watcher.cpp
+++ /dev/null
@@ -1,202 +0,0 @@
-// **************************************************************************
-// * This file is part of the FreeFileSync project. It is distributed under *
-// * GNU General Public License: http://www.gnu.org/licenses/gpl.html *
-// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved *
-// **************************************************************************
-
-#include "watcher.h"
-#include <set>
-#include <zen/tick_count.h>
-#include <zen/file_handling.h>
-#include <zen/stl_tools.h>
-#include <zen/dir_watcher.h>
-#include <zen/thread.h>
-#include <zen/assert_static.h>
-#include <zen/tick_count.h>
-#include <wx+/string_conv.h>
-#include "../lib/resolve_path.h"
-//#include "../library/db_file.h" //SYNC_DB_FILE_ENDING -> complete file too much of a dependency; file ending too little to decouple into single header
-//#include "../library/lock_holder.h" //LOCK_FILE_ENDING
-
-using namespace zen;
-
-
-namespace
-{
-const std::int64_t TICKS_UPDATE_INTERVAL = rts::UI_UPDATE_INTERVAL* ticksPerSec() / 1000;
-TickVal lastExec = getTicks();
-};
-
-bool rts::updateUiIsAllowed()
-{
- const TickVal now = getTicks(); //0 on error
- if (dist(lastExec, now) >= TICKS_UPDATE_INTERVAL) //perform ui updates not more often than necessary
- {
- lastExec = now;
- return true;
- }
- return false;
-}
-
-
-namespace
-{
-const int CHECK_DIR_INTERVAL = 1; //unit: [s]
-
-
-std::vector<Zstring> getFormattedDirs(const std::vector<Zstring>& dirs) //throw FileError
-{
- std::set<Zstring, LessFilename> tmp; //make unique
-
- std::transform(dirs.begin(), dirs.end(), std::inserter(tmp, tmp.end()),
- [](const Zstring& dirnameNonFmt) { return getFormattedDirectoryName(dirnameNonFmt); });
-
- return std::vector<Zstring>(tmp.begin(), tmp.end());
-}
-}
-
-
-rts::WaitResult rts::waitForChanges(const std::vector<Zstring>& dirNamesNonFmt, WaitCallback& statusHandler) //throw FileError
-{
- const std::vector<Zstring> dirNamesFmt = getFormattedDirs(dirNamesNonFmt); //throw FileError
- if (dirNamesFmt.empty()) //pathological case, but we have to check else this function will wait endlessly
- throw zen::FileError(_("A folder input field is empty.")); //should have been checked by caller!
-
- //detect when volumes are removed/are not available anymore
- std::vector<std::pair<Zstring, std::shared_ptr<DirWatcher>>> watches;
-
- for (auto it = dirNamesFmt.begin(); it != dirNamesFmt.end(); ++it)
- {
- const Zstring& dirnameFmt = *it;
- try
- {
- //a non-existent network path may block, so check existence asynchronously!
- auto ftDirExists = async([=] { return zen::dirExists(dirnameFmt); });
- while (!ftDirExists.timed_wait(boost::posix_time::milliseconds(UI_UPDATE_INTERVAL / 2)))
- statusHandler.requestUiRefresh(); //may throw!
- if (!ftDirExists.get())
- return WaitResult(dirnameFmt);
-
- watches.push_back(std::make_pair(dirnameFmt, std::make_shared<DirWatcher>(dirnameFmt))); //throw FileError, ErrorNotExisting
- }
- catch (ErrorNotExisting&) //nice atomic behavior: *no* second directory existence check!!!
- {
- return WaitResult(dirnameFmt);
- }
- catch (FileError&) //play safe: remedy potential FileErrors that should have been ErrorNotExisting (e.g. Linux: errors during directory traversing)
- {
- if (!dirExists(dirnameFmt)) //file system race condition!!
- return WaitResult(dirnameFmt);
- throw;
- }
- }
-
- const std::int64_t TICKS_DIR_CHECK_INTERVAL = CHECK_DIR_INTERVAL * ticksPerSec(); //0 on error
- TickVal lastCheck = getTicks(); //0 on error
- while (true)
- {
- const bool checkDirExistNow = [&]() -> bool //checking once per sec should suffice
- {
- const TickVal now = getTicks(); //0 on error
- if (dist(lastCheck, now) >= TICKS_DIR_CHECK_INTERVAL)
- {
- lastCheck = now;
- return true;
- }
- return false;
- }();
-
-
- for (auto it = watches.begin(); it != watches.end(); ++it)
- {
- const Zstring& dirname = it->first;
- DirWatcher& watcher = *(it->second);
-
- //IMPORTANT CHECK: dirwatcher has problems detecting removal of top watched directories!
- if (checkDirExistNow)
- if (!dirExists(dirname)) //catch errors related to directory removal, e.g. ERROR_NETNAME_DELETED
- return WaitResult(dirname);
-
- try
- {
- std::vector<DirWatcher::Entry> changedItems = watcher.getChanges([&] { statusHandler.requestUiRefresh(); }); //throw FileError, ErrorNotExisting
-
- //remove to be ignored changes
- vector_remove_if(changedItems, [](const DirWatcher::Entry& e)
- {
- return endsWith(e.filename_, Zstr(".ffs_lock")) || //sync.ffs_lock, sync.Del.ffs_lock
- endsWith(e.filename_, Zstr(".ffs_db")); //sync.ffs_db, .sync.tmp.ffs_db
- //no need to ignore temporal recycle bin directory: this must be caused by a file deletion anyway
- });
-
- if (!changedItems.empty())
- {
- /*
- std::for_each(changedItems.begin(), changedItems.end(),
- [](const Zstring& fn) { wxMessageBox(toWx(fn));});
- */
- return WaitResult(changedItems[0]); //directory change detected
- }
-
- }
- catch (ErrorNotExisting&) //nice atomic behavior: *no* second directory existence check!!!
- {
- return WaitResult(dirname);
- }
- catch (FileError&) //play safe: remedy potential FileErrors that should have been ErrorNotExisting (e.g. Linux: errors during directory traversing)
- {
- if (!dirExists(dirname)) //file system race condition!!
- return WaitResult(dirname);
- throw;
- }
- }
-
- boost::this_thread::sleep(boost::posix_time::milliseconds(rts::UI_UPDATE_INTERVAL / 2));
- statusHandler.requestUiRefresh(true); //throw ?: may start sync at this presumably idle time
- }
-}
-
-
-//support for monitoring newly connected directories volumes (e.g.: USB-sticks)
-void rts::waitForMissingDirs(const std::vector<Zstring>& dirNamesNonFmt, WaitCallback& statusHandler) //throw FileError
-{
- while (true)
- {
- //support specifying volume by name => call getFormattedDirectoryName() repeatedly
- const std::vector<Zstring>& dirNamesFmt = getFormattedDirs(dirNamesNonFmt); //throw FileError
-
- bool allExisting = true;
- for (auto it = dirNamesFmt.begin(); it != dirNamesFmt.end(); ++it)
- {
- const Zstring dirnameFmt = *it;
- auto ftDirExisting = async([=]() -> bool
- {
-#ifdef ZEN_WIN
- //1. login to network share, if necessary -> we probably do NOT want multiple concurrent runs: GUI!?
- loginNetworkShare(dirnameFmt, false); //login networks shares, no PW prompt -> is this really RTS's job?
-#endif
- //2. check dir existence
- return zen::dirExists(dirnameFmt);
- });
- while (!ftDirExisting.timed_wait(boost::posix_time::milliseconds(rts::UI_UPDATE_INTERVAL / 2)))
- statusHandler.requestUiRefresh(); //may throw!
-
- if (!ftDirExisting.get())
- {
- allExisting = false;
- break;
- }
- }
- if (allExisting)
- return;
-
- //wait some time...
- const int refreshInterval = UI_UPDATE_INTERVAL / 2;
- assert_static(1000 * CHECK_DIR_INTERVAL % refreshInterval == 0);
- for (int i = 0; i < 1000 * CHECK_DIR_INTERVAL / refreshInterval; ++i)
- {
- boost::this_thread::sleep(boost::posix_time::milliseconds(refreshInterval));
- statusHandler.requestUiRefresh();
- }
- }
-}
bgstack15