Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

blk_update_request(9) [centos man page]

BLK_UPDATE_REQUEST(9)						   Block Devices					     BLK_UPDATE_REQUEST(9)

blk_update_request - Special helper function for request stacking drivers SYNOPSIS
bool blk_update_request(struct request * req, int error, unsigned int nr_bytes); ARGUMENTS
req the request being processed error 0 for success, < 0 for error nr_bytes number of bytes to complete req DESCRIPTION
Ends I/O on a number of bytes attached to req, but doesn't complete the request structure even if req doesn't have leftover. If req has leftover, sets it up for the next range of segments. This special helper function is only for request stacking drivers (e.g. request-based dm) so that they can handle partial completion. Actual device drivers should use blk_end_request instead. Passing the result of blk_rq_bytes as nr_bytes guarantees false return from this function. RETURN
false - this request doesn't have any more data true - this request has more data COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 BLK_UPDATE_REQUEST(9)

Check Out this Related Man Page

Mojo::Message::Request(3pm)				User Contributed Perl Documentation			       Mojo::Message::Request(3pm)

Mojo::Message::Request - HTTP 1.1 request container SYNOPSIS
use Mojo::Message::Request; # Parse my $req = Mojo::Message::Request->new; $req->parse("GET /foo HTTP/1.0x0ax0d"); $req->parse("Content-Length: 12x0ax0dx0ax0d"); $req->parse("Content-Type: text/plainx0ax0dx0ax0d"); $req->parse('Hello World!'); say $req->body; # Build my $req = Mojo::Message::Request->new; $req->url->parse(''); $req->method('GET'); say $req->to_string; DESCRIPTION
Mojo::Message::Request is a container for HTTP 1.1 requests as described in RFC 2616. EVENTS
Mojo::Message::Request inherits all events from Mojo::Message. ATTRIBUTES
Mojo::Message::Request inherits all attributes from Mojo::Message and implements the following new ones. "env" my $env = $req->env; $req = $req->env({}); Direct access to the "CGI" or "PSGI" environment hash if available. # Check CGI version my $version = $req->env->{GATEWAY_INTERFACE}; # Check PSGI version my $version = $req->env->{'psgi.version'}; "method" my $method = $req->method; $req = $req->method('POST'); HTTP request method, defaults to "GET". "url" my $url = $req->url; $req = $req->url(Mojo::URL->new); HTTP request URL, defaults to a Mojo::URL object. my $foo = $req->url->query->to_hash->{foo}; METHODS
Mojo::Message::Request inherits all methods from Mojo::Message and implements the following new ones. "clone" my $clone = $req->clone; Clone request if possible, otherwise return "undef". "cookies" my $cookies = $req->cookies; $req = $req->cookies(Mojo::Cookie::Request->new); $req = $req->cookies({name => 'foo', value => 'bar'}); Access request cookies, usually Mojo::Cookie::Request objects. say $req->cookies->[1]->value; "fix_headers" $req = $req->fix_headers; Make sure request has all required headers for the current HTTP version. "is_secure" my $success = $req->is_secure; Check if connection is secure. "is_xhr" my $success = $req->is_xhr; Check "X-Requested-With" header for "XMLHttpRequest" value. "param" my @names = $req->param; my $foo = $req->param('foo'); my @foo = $req->param('foo'); Access "GET" and "POST" parameters. Note that this method caches all data, so it should not be called before the entire request body has been received. "params" my $p = $req->params; All "GET" and "POST" parameters, usually a Mojo::Parameters object. say $req->params->param('foo'); "parse" $req = $req->parse('GET /foo/bar HTTP/1.1'); $req = $req->parse(REQUEST_METHOD => 'GET'); $req = $req->parse({REQUEST_METHOD => 'GET'}); Parse HTTP request chunks or environment hash. "proxy" my $proxy = $req->proxy; $req = $req->proxy('http://foo:bar@'); $req = $req->proxy(Mojo::URL->new('')); Proxy URL for request. # Disable proxy $req->proxy(0); "query_params" my $p = $req->query_params; All "GET" parameters, usually a Mojo::Parameters object. say $req->query_params->to_hash->{'foo'}; SEE ALSO
Mojolicious, Mojolicious::Guides, <>. perl v5.14.2 2012-09-05 Mojo::Message::Request(3pm)
Man Page