Weibing Wang

Fix #1772

Add lazy stat and readlink function

1

Change-Id: Ifd99d64466657e0c0d0517312835fa8b0e173f2e Add fb_lazy_stat() and fb_lazy_readlink() function, for faster access to file system information.

Change-Id: I7c6d98db13ea0dece449597347f31761486f1aa7 When StaticContentCache::TheFileCache is empty, it is no need to call access(). This will save 30% cost of some file system functions such as file_exist(), is_file(), etc.

Change-Id: I6a8322e7030060c619397cd39a94c660c1f214ce This resolve #1230. `fastcgi_finish_request()` is very useful to send response instantly and do the rest thing in background. `register_postsend_function()` can do the same thing, but it is not...

add admin server type in runtime options

1

Change-Id: Ie00658b19606c9238ee71c5ab66434481c22202d We always use fastcgi server for compatibility, but we don't want the admin server to be fastcgi. It is not convenient to visit. So we add a patch...

fix file not reload when file size changed but mtime is not changed

1

Change-Id: I3a95efcc3ec1040630288656d028ef7513797269 fix #1447.