qi-hardware/gmenu2x
1
0
Fork 0
mirror of git://projects.qi-hardware.com/gmenu2x.git synced 2024-11-22 13:29:42 +02:00
Code

Avoid moving around entries unless new ones were found

Browse Source 
When scanning multiple directories in succession, it's possible that
in some of them no matches are found. Avoid moving all pre-existing
entries back and forth in that case.

Also use move instead of copy for transferring the pre-existing
entries from the vector to the set.
This commit is contained in:
Maarten ter Huurne 2014-08-13 07:35:29 +02:00
parent 90a5f82b92
commit 13f574bfb2
1 changed files with 21 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
src/filelister.cpp
View File

@ -74,14 +74,10 @@ static void moveNames(set<string, case_less>&& from, vector<string>& to)
void FileLister::browse(const string& path, bool clean)
{
set<string, case_less> directorySet;
set<string, case_less> fileSet;
if (!clean) {
directorySet.insert(directories.begin(), directories.end());
fileSet.insert(files.begin(), files.end());
if (clean) {
directories.clear();
files.clear();
}
directories.clear();
files.clear();
string slashedPath = path;
if (path[path.length() - 1] != '/')
@ -93,6 +89,9 @@ void FileLister::browse(const string& path, bool clean)
return;
}
set<string, case_less> directorySet;
set<string, case_less> fileSet;
while (struct dirent *dptr = readdir(dirp)) {
string file = dptr->d_name;
@ -155,8 +154,21 @@ void FileLister::browse(const string& path, bool clean)
closedir(dirp);
moveNames(move(directorySet), directories);
moveNames(move(fileSet), files);
if (!directorySet.empty()) {
for (string& dir : directories) {
directorySet.emplace(move(dir));
}
directories.clear();
moveNames(move(directorySet), directories);
}
if (!fileSet.empty()) {
for (string& file : files) {
fileSet.emplace(move(file));
}
files.clear();
moveNames(move(fileSet), files);
}
}
unsigned int FileLister::size()