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[HttpKernel] Update FileProfileStorage to search from EOF

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This commit is contained in:
alexandresalome 2011-08-29 15:34:31 +02:00
parent 188a5fa1ab
commit b7032bc971
1 changed files with 63 additions and 8 deletions
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71
src/Symfony/Component/HttpKernel/Profiler/FileProfilerStorage.php
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@ -54,11 +54,28 @@ class FileProfilerStorage implements ProfilerStorageInterface
return array();
}
$file = fopen($file, 'r');
$file = fopen($file, 'r');
fseek($file, 0, SEEK_END);
$result = array();
while (!feof($file) && $limit > 0) {
list($csvToken, $csvIp, $csvUrl, $csvTime, $csvParent) = fgetcsv($file);
while ($limit > 0) {
$line = $this->readLineFromFile($file);
if (false === $line) {
break;
}
if ($line === "") {
continue;
}
list($csvToken, $csvIp, $csvUrl, $csvTime, $csvParent) = str_getcsv($line);
if ($ip && false === strpos($csvIp, $ip) || $url && false === strpos($csvUrl, $url)) {
continue;
}
$row = array(
'token' => $csvToken,
'ip' => $csvIp,
@ -67,10 +84,6 @@ class FileProfilerStorage implements ProfilerStorageInterface
'parent' => $csvParent
);
if ($ip && false === strpos($csvIp, $ip) || $url && false === strpos($csvUrl, $url)) {
continue;
}
$result[] = $row;
$limit--;
}
@ -118,6 +131,7 @@ class FileProfilerStorage implements ProfilerStorageInterface
public function write(Profile $profile)
{
$file = $this->getFilename($profile->getToken());
$exists = file_exists($file);
// Create directory
$dir = dirname($file);
@ -139,7 +153,7 @@ class FileProfilerStorage implements ProfilerStorageInterface
));
fclose($file);
return true;
return ! $exists;
}
/**
@ -165,4 +179,45 @@ class FileProfilerStorage implements ProfilerStorageInterface
{
return $this->folder.'/'.'index.csv';
}
/**
* Reads a line in the file, ending with the current position.
*
* This function automatically skips the empty lines and do not include the line return in result value.
*
* @param resource $file The file resource, with the pointer placed at the end of the line to read
*
* @return mixed A string representating the line or FALSE if beginning of file is reached
*/
protected function readLineFromFile($file)
{
if (ftell($file) === 0) {
return false;
}
fseek($file, -1, SEEK_CUR);
$str = '';
while (true) {
$char = fgetc($file);
if ($char === "\n") {
// Leave the file with cursor before the line return
fseek($file, -1, SEEK_CUR);
break;
}
$str = $char . $str;
if (ftell($file) === 1) {
// All file is read, so we move cursor to the position 0
fseek($file, -1, SEEK_CUR);
break;
}
fseek($file, -2, SEEK_CUR);
}
return $str === "" ? $this->readLineFromFile($file) : $str;
}
}