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Cache file sizes.

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This commit is contained in:
Glenn Maynard
2003-09-22 05:14:00 +00:00
parent 1f5ca5deed
commit a6671a2d0d
1 changed files with 52 additions and 27 deletions
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stepmania/src/RageUtil_FileDB.cpp
+52 -27
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@@ -21,9 +21,10 @@
struct File {
istring name;
bool dir;
File() { dir=false; }
File(istring fn, bool dir_=false): name(fn), dir(dir) { }
int size;
File() { dir=false; size=-1; }
File( istring fn ): name(fn) { dir=false; size=-1; }
bool operator== (const File &rhs) const { return name==rhs.name; }
bool operator< (const File &rhs) const { return name<rhs.name; }
@@ -47,6 +48,7 @@ struct FileSet
bool DoesFileExist(const CString &path) const;
bool IsADirectory(const CString &path) const;
bool IsAFile(const CString &path) const;
int GetFileSize(const CString &path) const;
};
void FileSet::LoadFromDir(const CString &dir)
@@ -68,6 +70,7 @@ void FileSet::LoadFromDir(const CString &dir)
File f;
f.name=fd.cFileName;
f.dir = !!(fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
f.size = fd.nFileSizeLow;
files.insert(f);
} while( FindNextFile( hFind, &fd ) );
@@ -95,21 +98,18 @@ void FileSet::LoadFromDir(const CString &dir)
File f;
f.name=ent->d_name;
if( ent->d_type == DT_UNKNOWN )
struct stat st;
if( stat(ent->d_name, &st) == -1 )
{
/* d_type isn't implemented; we need to stat. */
struct stat st;
if( stat(ent->d_name, &st) == -1 )
{
/* Huh? */
if(LOG)
LOG->Warn("Got file '%s' in '%s' from list, but can't stat? (%s)",
ent->d_name, dir.c_str(), strerror(errno));
f.dir = false;
} else
f.dir = (st.st_mode & S_IFDIR);
} else
f.dir = ent->d_type == DT_DIR;
/* Huh? */
if(LOG)
LOG->Warn("Got file '%s' in '%s' from list, but can't stat? (%s)",
ent->d_name, dir.c_str(), strerror(errno));
f.dir = false;
} else {
f.dir = (st.st_mode & S_IFDIR);
f.size = st.st_size;
}
files.insert(f);
}
@@ -186,6 +186,14 @@ bool FileSet::IsAFile(const CString &path) const
return !i->dir;
}
int FileSet::GetFileSize(const CString &path) const
{
set<File>::const_iterator i = files.find(File(path.c_str()));
if(i == files.end())
return -1;
return i->size;
}
/* Given "foo/bar/baz/" or "foo/bar/baz", return "foo/bar/" and "baz". */
static void SplitPath( CString Path, CString &Dir, CString &Name )
{
@@ -232,6 +240,7 @@ public:
bool DoesFileExist(const CString &path);
bool IsAFile(const CString &path);
bool IsADirectory(const CString &path);
int GetFileSize(const CString &path);
void FlushDirCache();
};
@@ -260,6 +269,14 @@ bool FilenameDB::IsADirectory( const CString &sPath )
return fs.IsADirectory(Name);
}
int FilenameDB::GetFileSize( const CString &sPath )
{
CString Dir, Name;
SplitPath(sPath, Dir, Name);
FileSet &fs = GetFileSet(Dir.c_str());
return fs.GetFileSize(Name);
}
/* XXX: this won't work right for URIs, eg \\foo\bar */
bool FilenameDB::ResolvePath(CString &path)
@@ -435,11 +452,24 @@ void GetDirListing( CString sPath, CStringArray &AddTo, bool bOnlyDirs, bool bRe
bool ResolvePath(CString &path) { return FDB.ResolvePath(path); }
void FlushDirCache()
{
FDB.FlushDirCache();
}
#if 1
bool DoesFileExist( const CString &sPath ) { return FDB.DoesFileExist(sPath); }
bool IsAFile( const CString &sPath ) { return FDB.IsAFile(sPath); }
bool IsADirectory( const CString &sPath ) { return FDB.IsADirectory(sPath); }
unsigned GetFileSizeInBytes( const CString &sPath )
{
int ret = FDB.GetFileSize(sPath);
LOG->Trace("file '%s' size %i", sPath.c_str(), ret);
if( ret == -1 )
return 0;
return ret;
}
#else
bool DoesFileExist( const CString &sPath )
{
@@ -462,14 +492,6 @@ bool IsADirectory( const CString &sPath )
return !!(st.st_mode & S_IFDIR);
}
#endif
/* XXX */
bool DoStat(CString sPath, struct stat *st)
{
TrimRight(sPath, "/\\");
return stat(sPath.c_str(), st) != -1;
}
unsigned GetFileSizeInBytes( const CString &sFilePath )
{
@@ -479,8 +501,11 @@ unsigned GetFileSizeInBytes( const CString &sFilePath )
return st.st_size;
}
#endif
void FlushDirCache()
/* XXX */
bool DoStat(CString sPath, struct stat *st)
{
FDB.FlushDirCache();
TrimRight(sPath, "/\\");
return stat(sPath.c_str(), st) != -1;
}