lesderid
/
dtagfs
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Cache tag list, directories, and file status

This commit is contained in:
Les De Ridder 2016-10-24 03:06:09 +02:00
parent 24b869d0f6
commit dd21635050
No known key found for this signature in database
GPG Key ID: 5EC132DFA85DB372
1 changed files with 32 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
source/filesystem.d
View File

@ -20,10 +20,14 @@ class FileSystem : Operations
private string _source;
private TagProvider[] _tagProviders;
private string[][string] _tagCache;
private stat_t _sourceStat;
private string[][string] _tagCache;
private stat_t[string] _statCache;
private string[][string] _dirCache;
private string[] _tagList;
this(string source, TagProvider[] tagProviders)
{
_source = source;
@ -49,6 +53,13 @@ class FileSystem : Operations
_tagCache[file] ~= tagProvider.getTags(file);
}
}
_tagList = _tagCache.byValue()
.joiner
.array
.sort()
.uniq
.array;
}
override void getattr(const(char)[] path, ref stat_t stat)
@ -62,8 +73,16 @@ class FileSystem : Operations
}
else if(isFile(path.baseName))
{
auto file = findFile(path.baseName);
lstat(toStringz(file), &stat);
if(path.baseName in _statCache)
{
stat = _statCache[path.baseName];
}
else
{
auto file = findFile(path.baseName);
lstat(toStringz(file), &stat);
_statCache[path.baseName] = stat;
}
}
else
{
@ -73,7 +92,7 @@ class FileSystem : Operations
bool isTag(const(char)[] name)
{
return _tagCache.values.any!(a => a.canFind(name));
return _tagList.canFind(name);
}
bool isFile(const(char)[] name)
@ -95,12 +114,7 @@ class FileSystem : Operations
{
if(path == "/")
{
return _tagCache.byValue()
.joiner
.array
.sort()
.uniq
.array;
return _tagList;
}
else
{
@ -138,14 +152,19 @@ class FileSystem : Operations
override string[] readdir(const(char)[] path)
{
if(path in _dirCache)
{
return _dirCache[path];
}
//TODO: Don't return tags if only one file (or files with exactly the same set of tags) files?
if (path == "/")
{
return getTags(path) ~ getFiles(path);
return _dirCache[path] = getTags(path) ~ getFiles(path);
}
else
{
return getTags(path) ~ getFiles(path) ~ [".", ".."];
return _dirCache[path] = getTags(path) ~ getFiles(path) ~ [".", ".."];
}
}