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only update subfiles and subdirs list during dir watching sweep when the TS of the dir has changed. Greatly improve cost of regular directory watching process

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This commit is contained in:
cyril soler 2016-10-05 10:59:51 +02:00
parent d020d8d896
commit 854eebb2cb
1 changed files with 55 additions and 43 deletions
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18
libretroshare/src/file_sharing/directory_updater.cc
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@ -137,6 +137,15 @@ void LocalDirectoryUpdater::recursUpdateSharedDir(const std::string& cumulated_p
librs::util::FolderIterator dirIt(cumulated_path);
time_t dir_local_mod_time ;
if(!mSharedDirectories->getDirectoryLocalModTime(indx,dir_local_mod_time))
{
std::cerr << "(EE) Cannot get local mod time for dir index " << indx << std::endl;
return;
}
if(dirIt.dir_modtime() != dir_local_mod_time)
{
// collect subdirs and subfiles
std::map<std::string,DirectoryStorage::FileTS> subfiles ;
@ -184,12 +193,15 @@ void LocalDirectoryUpdater::recursUpdateSharedDir(const std::string& cumulated_p
if(mHashCache->requestHash(cumulated_path + "/" + dit.name(),dit.size(),dit.modtime(),hash,this,*dit) && dit.hash() != hash)
mSharedDirectories->updateHash(*dit,hash);
}
}
#ifdef DEBUG_LOCAL_DIR_UPDATER
else
std::cerr << " directory is unchanged. Keeping existing files and subdirs list." << std::endl;
#endif
// go through the list of sub-dirs and recursively update
DirectoryStorage::DirIterator stored_dir_it(mSharedDirectories,indx) ;
for(std::map<std::string,time_t>::const_iterator real_dir_it(subdirs.begin());real_dir_it!=subdirs.end();++real_dir_it, ++stored_dir_it)
for(DirectoryStorage::DirIterator stored_dir_it(mSharedDirectories,indx) ; stored_dir_it; ++stored_dir_it)
{
#ifdef DEBUG_LOCAL_DIR_UPDATER
std::cerr << " recursing into " << stored_dir_it.name() << std::endl;