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--TEST--
GH-13071 (Copying large files using mmap-able source streams may exhaust available memory and fail)
--FILE--
<?php
class CustomStream {
public $context;
protected $file;
protected $seekable;
public static int $writes = 0;
public function stream_open($path, $mode, $options, &$opened_path) {
$path = $this->trim_path($path);
$this->file = fopen($path, $mode);
return true;
}
public function stream_close() {
fclose($this->file);
return true;
}
public function stream_write($data) {
self::$writes++;
return fwrite($this->file, $data);
}
public function url_stat($path, $flags) {
return false;
}
private function trim_path(string $path): string {
return substr($path, strlen("up://"));
}
}
file_put_contents(__DIR__ . "/gh13071.tmp", str_repeat("a", 1024 * 1024 * 8));
stream_wrapper_register("up", CustomStream::class, STREAM_IS_URL);
$old_limit = ini_get("memory_limit");
ini_set("memory_limit", memory_get_usage(true) + 5 * 1024 * 1024);
copy(__DIR__ . "/gh13071.tmp", "up://" . __DIR__ . "/gh13071.out.tmp");
ini_set("memory_limit", $old_limit);
echo "Done ", CustomStream::$writes, " writes\n";
?>
--CLEAN--
<?php
@unlink(__DIR__ . "/gh13071.tmp");
@unlink(__DIR__ . "/gh13071.out.tmp");
?>
--EXPECT--
Done 1024 writes
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