ModSelect.cc File Reference

#include "squid.h"
#include "anyp/PortCfg.h"
#include "comm/Connection.h"
#include "comm/Loops.h"
#include "compat/select.h"
#include "fde.h"
#include "globals.h"
#include "ICP.h"
#include "mgr/Registration.h"
#include "SquidConfig.h"
#include "StatCounters.h"
#include "StatHist.h"
#include "Store.h"
#include <cerrno>

Include dependency graph for ModSelect.cc:

Go to the source code of this file.

Macros
#define	howmany(x, y)   (((x)+((y)-1))/(y))
#define	NBBY   8
#define	FD_MASK_BYTES   sizeof(fd_mask)
#define	FD_MASK_BITS   (FD_MASK_BYTES*NBBY)

Functions
static int	examine_select (fd_set *, fd_set *)
static int	fdIsTcpListener (int fd)
static int	fdIsUdpListener (int fd)
static int	fdIsDns (int fd)
static int	comm_check_incoming_select_handlers (int nfds, int *fds)
static void	comm_select_dns_incoming (void)
static void	commUpdateReadBits (int fd, PF *handler)
static void	commUpdateWriteBits (int fd, PF *handler)
static void	comm_select_udp_incoming (void)
static void	comm_select_tcp_incoming (void)
static void	commIncomingStats (StoreEntry *sentry)

Variables
static int	MAX_POLL_TIME = 1000
static OBJH	commIncomingStats
static struct timeval	zero_tv
static fd_set	global_readfds
static fd_set	global_writefds
static int	nreadfds
static int	nwritefds

Macro Definition Documentation

FD_MASK_BITS

#define FD_MASK_BITS   (FD_MASK_BYTES*NBBY)

Definition at line 42 of file ModSelect.cc.

FD_MASK_BYTES

#define FD_MASK_BYTES   sizeof(fd_mask)

Definition at line 41 of file ModSelect.cc.

howmany

#define howmany	(		x,
			y
	)		(((x)+((y)-1))/(y))

Definition at line 36 of file ModSelect.cc.

NBBY

#define NBBY   8

Definition at line 39 of file ModSelect.cc.

Function Documentation

comm_check_incoming_select_handlers()

static int comm_check_incoming_select_handlers ( int  nfds, int *  fds  )

static

Definition at line 123 of file ModSelect.cc.

References commUpdateReadBits(), commUpdateWriteBits(), DBG_IMPORTANT, debugs, fd_table, getCurrentTime(), incoming_sockets_accepted, StatCounters::selects, statCounter, StatCounters::syscalls, xselect(), and zero_tv.

Referenced by comm_select_dns_incoming(), comm_select_tcp_incoming(), and comm_select_udp_incoming().

comm_select_dns_incoming()

static void comm_select_dns_incoming ( void  )

static

Definition at line 491 of file ModSelect.cc.

References comm_check_incoming_select_handlers(), StatCounters::comm_dns, SquidConfig::comm_incoming, Config, SquidConfig::CommIncoming::dns, DnsSocketA, DnsSocketB, Comm::Incoming::finishPolling(), Comm::Incoming::startPolling(), and statCounter.

comm_select_tcp_incoming()

static void comm_select_tcp_incoming ( void  )

static

Definition at line 213 of file ModSelect.cc.

References comm_check_incoming_select_handlers(), SquidConfig::comm_incoming, StatCounters::comm_tcp, Config, Comm::Incoming::finishPolling(), HttpPortList, Comm::IsConnOpen(), MAXTCPLISTENPORTS, Comm::Incoming::startPolling(), statCounter, and SquidConfig::CommIncoming::tcp.

comm_select_udp_incoming()

static void comm_select_udp_incoming ( void  )

static

Definition at line 191 of file ModSelect.cc.

References comm_check_incoming_select_handlers(), SquidConfig::comm_incoming, StatCounters::comm_udp, Config, Comm::Incoming::finishPolling(), icpIncomingConn, icpOutgoingConn, Comm::IsConnOpen(), Comm::Incoming::startPolling(), statCounter, and SquidConfig::CommIncoming::udp.

commIncomingStats()

static void commIncomingStats ( StoreEntry *  sentry )

static

Definition at line 599 of file ModSelect.cc.

References StatCounters::comm_dns, StatCounters::comm_tcp, StatCounters::comm_udp, StatHist::dump(), Comm::Incoming::Factor, Comm::Incoming::history, Comm::Incoming::interval, statCounter, statHistIntDumper, and storeAppendPrintf().

commUpdateReadBits()

void commUpdateReadBits ( int  fd, PF *  handler  )

static

Definition at line 618 of file ModSelect.cc.

References global_readfds, and nreadfds.

Referenced by comm_check_incoming_select_handlers().

commUpdateWriteBits()

void commUpdateWriteBits ( int  fd, PF *  handler  )

static

Definition at line 630 of file ModSelect.cc.

References global_writefds, and nwritefds.

Referenced by comm_check_incoming_select_handlers().

examine_select()

static int examine_select ( fd_set *  readfds, fd_set *  writefds  )

static

Definition at line 537 of file ModSelect.cc.

References fde::closeHandler, commCallCloseHandlers(), DBG_CRITICAL, debugs, fde::desc, fd_table, fdTypeStr, AsyncCall::Next(), fde::read_handler, ScheduleCallHere, StatCounters::selects, Squid_MaxFD, statCounter, StatCounters::syscalls, fde::timeoutHandler, fde::type, fde::write_handler, and xstrerr().

fdIsDns()

static int fdIsDns ( int  fd )

static

Definition at line 100 of file ModSelect.cc.

References DnsSocketA, and DnsSocketB.

fdIsTcpListener()

static int fdIsTcpListener ( int  fd )

static

Definition at line 112 of file ModSelect.cc.

References HttpPortList.

fdIsUdpListener()

static int fdIsUdpListener ( int  fd )

static

Definition at line 88 of file ModSelect.cc.

References icpIncomingConn, and icpOutgoingConn.

Variable Documentation

commIncomingStats

OBJH commIncomingStats

static

Definition at line 49 of file ModSelect.cc.

global_readfds

fd_set global_readfds

static

Definition at line 56 of file ModSelect.cc.

Referenced by commUpdateReadBits().

global_writefds

fd_set global_writefds

static

Definition at line 57 of file ModSelect.cc.

Referenced by commUpdateWriteBits().

MAX_POLL_TIME

int MAX_POLL_TIME = 1000

static

Definition at line 33 of file ModSelect.cc.

nreadfds

int nreadfds

static

Definition at line 58 of file ModSelect.cc.

Referenced by commUpdateReadBits().

nwritefds

int nwritefds

static

Definition at line 59 of file ModSelect.cc.

Referenced by commUpdateWriteBits().

zero_tv

struct timeval zero_tv

static

Definition at line 55 of file ModSelect.cc.

Referenced by comm_check_incoming_select_handlers().