fanbinit/rhymix
1
0
Fork 0
mirror of https://github.com/Lastorder-DC/rhymix.git synced 2026-01-05 09:41:40 +09:00
Code Issues Projects Releases Packages Wiki Activity

Use lockfile instead of empty file

Browse source
This commit is contained in:
Kijin Sung 2015-09-17 16:35:34 +09:00
parent 8d92b0eeb9
commit 91b0680c21
2 changed files with 48 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

42
modules/document/document.item.php
View file

@ -818,19 +818,28 @@ class documentItem extends Object
}
$thumbnail_type = $config->thumbnail_type;
}
// Define thumbnail information
$thumbnail_path = sprintf('files/thumbnails/%s',getNumberingPath($this->document_srl, 3));
$thumbnail_file = sprintf('%s%dx%d.%s.jpg', $thumbnail_path, $width, $height, $thumbnail_type);
$thumbnail_lockfile = sprintf('%s%dx%d.%s.lock', $thumbnail_path, $width, $height, $thumbnail_type);
$thumbnail_url = Context::getRequestUri().$thumbnail_file;
// Return false if thumbnail file exists and its size is 0. Otherwise, return its path
if(file_exists($thumbnail_file))
if(file_exists($thumbnail_file) || file_exists($thumbnail_lockfile))
{
if(filesize($thumbnail_file)<1) return false;
else return $thumbnail_url;
if(filesize($thumbnail_file) < 1)
{
return FALSE;
}
else
{
return $thumbnail_url;
}
}
// Prevent race condition
FileHandler::writeFile($thumbnail_file, '', 'w');
// Create lockfile to prevent race condition
FileHandler::writeFile($thumbnail_lockfile, '', 'w');
// Target File
$source_file = null;
@ -906,9 +915,26 @@ class documentItem extends Object
{
$output = FileHandler::createImageFile($source_file, $thumbnail_file, $width, $height, 'jpg', $thumbnail_type);
}
if($is_tmp_file) FileHandler::removeFile($source_file);
// Return its path if a thumbnail is successfully genetated
if($output) return $thumbnail_url;
// Remove source file if it was temporary
if($is_tmp_file)
{
FileHandler::removeFile($source_file);
}
// Remove lockfile
FileHandler::removeFile($thumbnail_lockfile);
// Return the thumbnail path if it was successfully generated
if($output)
{
return $thumbnail_url;
}
// Create an empty file if thumbnail generation failed
else
{
FileHandler::writeFile($thumbnail_file, '','w');
}
return;
}