BLK_END_BIDI_REQUEST(9) Block Devices BLK_END_BIDI_REQUEST(9)NAME
blk_end_bidi_request - Complete a bidi request
SYNOPSIS
bool blk_end_bidi_request(struct request * rq, int error, unsigned int nr_bytes, unsigned int bidi_bytes);
ARGUMENTS
rq
the request to complete
error
0 for success, < 0 for error
nr_bytes
number of bytes to complete rq
bidi_bytes
number of bytes to complete rq->next_rq
DESCRIPTION
Ends I/O on a number of bytes attached to rq and rq->next_rq. Drivers that supports bidi can safely call this member for any type of
request, bidi or uni. In the later case bidi_bytes is just ignored.
RETURN
false - we are done with this request true - still buffers pending for this request
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 BLK_END_BIDI_REQUEST(9)
Check Out this Related Man Page
RpcHdr(3I) InterViews Reference Manual RpcHdr(3I)NAME
RpcHdr - header for remote procedure calls
SYNOPSIS
#include <Dispatch/rpchdr.h>
DESCRIPTION
An RpcHdr enables an RPC request to be sent or received. To send an RPC request, you would insert an RpcHdr into an rpcstream followed by
any arguments and then flush the rpcstream if you wanted the request to be sent immediately. The rpcstream automatically fills in each RPC
request's length field. To receive an RPC request, you would extract an RpcHdr from an rpcstream and examine the ``request()'' member to
determine which additional arguments need to be extracted as well. You can examine the ``ndata()'' member too if you need to estimate how
much space to allocate.
CONSTRUCTORS
RpcHdr(void* writer, int request)
RpcHdr(int request)
RpcHdr()
Construct an initialized header for an outgoing RPC request (first two constructors) or construct an uninitialized header for an
incoming RPC request (third constructor). To initialize the header, you'll have to store the request's protocol number. You can
also store the address of the writer sending the RPC request if you want to route the RPC request to a specific reader on the peer's
side.
PUBLIC OPERATIONS
unsigned long reader()
int request()
unsigned int ndata()
Get information about the RPC request. ``reader()'' identifies the reader which should handle the RPC request. ``request()'' iden-
tifies the action that should be performed. ``ndata()'' gives the number of data bytes following the header, which may be useful
for estimating the amount of space that must be allocated to store an argument.
SEE ALSO RpcReader(3I), RpcWriter(3I), rpcstream(3I)InterViews 27 March 1991 RpcHdr(3I)
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