module Mongrel::Const
Frequently used constants when constructing requests or responses. Many times the constant just refers to a string with the same contents. Using these constants gave about a 3% to 10% performance improvement over using the strings directly. Symbols did not really improve things much compared to constants.
While Mongrel does try to emulate the CGI/1.2 protocol, it does not use the REMOTE_IDENT, REMOTE_USER, or REMOTE_HOST parameters since those are either a security problem or too taxing on performance.
Constants
- CHUNK_SIZE
-
The basic max request size we’ll try to read.
- CONTENT_LENGTH
- CONTENT_TYPE
- DATE
- ERROR_404_RESPONSE
-
The standard empty 404 response for bad requests. Use Error4040Handler for custom stuff.
- ERROR_503_RESPONSE
-
A common header for indicating the server is too busy. Not used yet.
- ETAG
- ETAG_FORMAT
-
ETag is based on the apache standard of hex mtime-size-inode (inode is 0 on win32)
- GET
- HEAD
- HEADER_FORMAT
- HOST
- HTTP_IF_MODIFIED_SINCE
- HTTP_IF_NONE_MATCH
- HTTP_X_FORWARDED_FOR
- LAST_MODIFIED
- LINE_END
- MAX_BODY
-
Maximum request body size before it is moved out of memory and into a tempfile for reading.
- MAX_HEADER
-
This is the maximum header that is allowed before a client is booted. The parser detects this, but we’d also like to do this as well.
- MONGREL_TMP_BASE
- MONGREL_VERSION
- PATH_INFO
-
This is the part of the path after the
SCRIPT_NAME.URIClassifierwill determine this. - REDIRECT
- REMOTE_ADDR
- REQUEST_METHOD
- REQUEST_PATH
- REQUEST_URI
-
The original URI requested by the client. Passed to
URIClassifierto buildPATH_INFOandSCRIPT_NAME. - SCRIPT_NAME
-
This is the initial part that your handler is identified as by
URIClassifier. - SLASH
- STATUS_FORMAT
-
A frozen format for this is about 15% faster