IpcIoMsg Class Reference

converts DiskIO requests to IPC queue messages More...

#include <IpcIoFile.h>

Collaboration diagram for IpcIoMsg:

Public Member Functions
	IpcIoMsg ()
void	stat (std::ostream &)
	prints message parameters; suitable for cache manager reports More...

Public Attributes
unsigned int	requestId
	unique for requestor; matches request w/ response More...
off_t	offset
size_t	len
Ipc::Mem::PageId	page
pid_t	workerPid
	the process ID of the I/O requestor More...
IpcIo::Command	command
	what disker is supposed to do or did More...
struct timeval	start
	when the I/O request was converted to IpcIoMsg More...
int	xerrno
	I/O error code or zero. More...

Detailed Description

Definition at line 40 of file IpcIoFile.h.

Constructor & Destructor Documentation

IpcIoMsg()

IpcIoMsg::IpcIoMsg

(

)

Definition at line 676 of file IpcIoFile.cc.

References start.

Member Function Documentation

stat()

void IpcIoMsg::stat

(

std::ostream &

os

)

Definition at line 689 of file IpcIoFile.cc.

References command, current_time, len, offset, page, requestId, start, tvSub(), workerPid, and xerrno.

Member Data Documentation

command

IpcIo::Command IpcIoMsg::command

Definition at line 56 of file IpcIoFile.h.

Referenced by IpcIoFile::DiskerHandleRequest(), operator<<(), IpcIoFile::push(), stat(), and IpcIoFile::WaitBeforePop().

len

size_t IpcIoMsg::len

Definition at line 52 of file IpcIoFile.h.

Referenced by IpcIoFile::DiskerHandleRequest(), diskerRead(), diskerWriteAttempts(), IpcIoFile::push(), IpcIoFile::readCompleted(), stat(), and IpcIoFile::writeCompleted().

offset

off_t IpcIoMsg::offset

Definition at line 51 of file IpcIoFile.h.

Referenced by IpcIoFile::DiskerHandleRequest(), diskerRead(), diskerWriteAttempts(), IpcIoFile::push(), and stat().

page

Ipc::Mem::PageId IpcIoMsg::page

Definition at line 53 of file IpcIoFile.h.

Referenced by diskerRead(), diskerWrite(), diskerWriteAttempts(), IpcIoFile::push(), IpcIoFile::readCompleted(), and stat().

requestId

unsigned int IpcIoMsg::requestId

Definition at line 49 of file IpcIoFile.h.

Referenced by IpcIoFile::DiskerHandleRequest(), IpcIoFile::handleResponse(), operator<<(), IpcIoFile::push(), and stat().

start

struct timeval IpcIoMsg::start

Definition at line 57 of file IpcIoFile.h.

Referenced by IpcIoFile::canWait(), IpcIoMsg(), IpcIoFile::push(), and stat().

workerPid

pid_t IpcIoMsg::workerPid

Definition at line 54 of file IpcIoFile.h.

Referenced by IpcIoFile::DiskerHandleRequest(), IpcIoFile::push(), and stat().

xerrno

int IpcIoMsg::xerrno

Definition at line 59 of file IpcIoFile.h.

Referenced by diskerRead(), diskerWriteAttempts(), IpcIoFile::readCompleted(), stat(), and IpcIoFile::writeCompleted().

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The documentation for this class was generated from the following files:

• src/DiskIO/IpcIo/IpcIoFile.h
• src/DiskIO/IpcIo/IpcIoFile.cc