(PECL eio >= 0.0.1dev)
eio_mknod — Create a special or ordinary file
$path,$mode,$dev,$pri = EIO_PRI_DEFAULT,$callback = NULL,$data = NULLeio_mknod() creates ordinary or special(often) file.
本函数还未编写文档，仅有参数列表。
pathPath for the new node(file).
mode
Specifies both the permissions to use and the type of node to be
created. It should be a combination (using bitwise OR) of one of the
file types listed below and the permissions for the new node(e.g. 0640).
Possible file types are: EIO_S_IFREG(regular file),
EIO_S_IFCHR(character file),
EIO_S_IFBLK(block special file),
EIO_S_IFIFO(FIFO - named pipe) and
EIO_S_IFSOCK(UNIX domain socket).
To specify permissions EIO_S_I* constants could be
used.
dev
If the file type is EIO_S_IFCHR or
EIO_S_IFBLK then dev specifies the major and minor
numbers of the newly created device special file. Otherwise
dev ignored. See mknod(2) man page for
details.
pri请求的优先级：EIO_PRI_DEFAULT，EIO_PRI_MIN，EIO_PRI_MAX 或 null。如果是
null，pri 将设为
EIO_PRI_DEFAULT。
callback
callback
函数在请求完成时被调用。其应匹配一下原型：
void callback(mixed $data, int $result[, resource $req]);data传递给请求的用户数据。
result针对请求的结果的值。通常是相应的系统调用返回的值。
req可选的请求资源，可被 eio_get_last_error() 之类的函数使用。
data
Arbitrary variable passed to callback.
eio_mknod() returns request resource on success, 或者在失败时返回 false.
示例 #1 eio_mknod() example
<?php
// FIFO name
$temp_filename = "/tmp/eio-temp-fifo";
/* Is called when eio_mknod() finishes */
function my_mknod_callback($data, $result) {
$s = stat($data);
var_dump($s);
if ($result == 0) {
echo "eio_mknod_ok";
}
@unlink($data);
}
eio_mknod($temp_filename, EIO_S_IFIFO, 0,
EIO_PRI_DEFAULT, "my_mknod_callback", $temp_filename);
eio_event_loop();
?>以上示例的输出类似于：
array(26) {
[0]=>
int(17)
[1]=>
int(2337608)
[2]=>
int(4096)
[3]=>
int(1)
[4]=>
int(1000)
[5]=>
int(100)
[6]=>
int(0)
[7]=>
int(0)
[8]=>
int(1318241261)
[9]=>
int(1318241261)
[10]=>
int(1318241261)
[11]=>
int(4096)
[12]=>
int(0)
["dev"]=>
int(17)
["ino"]=>
int(2337608)
["mode"]=>
int(4096)
["nlink"]=>
int(1)
["uid"]=>
int(1000)
["gid"]=>
int(100)
["rdev"]=>
int(0)
["size"]=>
int(0)
["atime"]=>
int(1318241261)
["mtime"]=>
int(1318241261)
["ctime"]=>
int(1318241261)
["blksize"]=>
int(4096)
["blocks"]=>
int(0)
}
eio_mknod_ok