ModSelectWin32.cc File Reference

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

Include dependency graph for ModSelectWin32.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)
#define	MAX_INCOMING_INTEGER   256
#define	INCOMING_FACTOR   5
#define	MAX_INCOMING_INTERVAL   (MAX_INCOMING_INTEGER << INCOMING_FACTOR)
#define	commCheckUdpIncoming   (++udp_io_events > (incoming_udp_interval>> INCOMING_FACTOR))
#define	commCheckDnsIncoming   (++dns_io_events > (incoming_dns_interval>> INCOMING_FACTOR))
#define	commCheckTcpIncoming   (++tcp_io_events > (incoming_tcp_interval>> INCOMING_FACTOR))
#define	DEBUG_FDBITS   0

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
static int	udp_io_events = 0
static int	dns_io_events = 0
static int	tcp_io_events = 0
static int	incoming_udp_interval = 16 << INCOMING_FACTOR
static int	incoming_dns_interval = 16 << INCOMING_FACTOR
static int	incoming_tcp_interval = 16 << INCOMING_FACTOR

Macro Definition Documentation

commCheckDnsIncoming

#define commCheckDnsIncoming   (++dns_io_events > (incoming_dns_interval>> INCOMING_FACTOR))

Definition at line 113 of file ModSelectWin32.cc.

commCheckTcpIncoming

#define commCheckTcpIncoming   (++tcp_io_events > (incoming_tcp_interval>> INCOMING_FACTOR))

Definition at line 114 of file ModSelectWin32.cc.

commCheckUdpIncoming

#define commCheckUdpIncoming   (++udp_io_events > (incoming_udp_interval>> INCOMING_FACTOR))

Definition at line 112 of file ModSelectWin32.cc.

DEBUG_FDBITS

#define DEBUG_FDBITS   0

Definition at line 314 of file ModSelectWin32.cc.

FD_MASK_BITS

#define FD_MASK_BITS   (FD_MASK_BYTES*NBBY)

Definition at line 36 of file ModSelectWin32.cc.

FD_MASK_BYTES

#define FD_MASK_BYTES   sizeof(fd_mask)

Definition at line 35 of file ModSelectWin32.cc.

howmany

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

Definition at line 30 of file ModSelectWin32.cc.

INCOMING_FACTOR

#define INCOMING_FACTOR   5

Definition at line 104 of file ModSelectWin32.cc.

Referenced by commIncomingStats().

MAX_INCOMING_INTEGER

#define MAX_INCOMING_INTEGER   256

Definition at line 103 of file ModSelectWin32.cc.

MAX_INCOMING_INTERVAL

#define MAX_INCOMING_INTERVAL   (MAX_INCOMING_INTEGER << INCOMING_FACTOR)

Definition at line 105 of file ModSelectWin32.cc.

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

NBBY

#define NBBY   8

Definition at line 33 of file ModSelectWin32.cc.

Function Documentation

comm_check_incoming_select_handlers()

static int comm_check_incoming_select_handlers ( int  nfds, int *  fds  )

static

Definition at line 178 of file ModSelectWin32.cc.

References commUpdateReadBits(), commUpdateWriteBits(), DBG_IMPORTANT, debugs, fd_table, getCurrentTime(), i, incoming_sockets_accepted, maxfd, nfds, NULL, StatCounters::selects, statCounter, StatCounters::syscalls, 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 626 of file ModSelectWin32.cc.

References comm_check_incoming_select_handlers(), StatCounters::comm_dns_incoming, SquidConfig::comm_incoming, commIncomingStats, Config, StatHist::count(), SquidConfig::dns, dns_io_events, DnsSocketA, DnsSocketB, global_readfds, global_writefds, incoming_dns_interval, INCOMING_DNS_MAX, MAX_INCOMING_INTERVAL, nfds, nreadfds, nwritefds, Mgr::RegisterAction(), Comm::SelectLoopInit(), statCounter, and zero_tv.

comm_select_tcp_incoming()

static void comm_select_tcp_incoming ( void  )

static

Definition at line 283 of file ModSelectWin32.cc.

References comm_check_incoming_select_handlers(), SquidConfig::comm_incoming, StatCounters::comm_tcp_incoming, Config, StatHist::count(), HttpPortList, incoming_tcp_interval, INCOMING_TCP_MAX, Comm::IsConnOpen(), MAX_INCOMING_INTERVAL, MAXTCPLISTENPORTS, nfds, NULL, statCounter, SquidConfig::tcp, and tcp_io_events.

comm_select_udp_incoming()

static void comm_select_udp_incoming ( void  )

static

Definition at line 246 of file ModSelectWin32.cc.

References comm_check_incoming_select_handlers(), SquidConfig::comm_incoming, StatCounters::comm_udp_incoming, Config, StatHist::count(), Comm::Connection::fd, icpIncomingConn, icpOutgoingConn, incoming_udp_interval, INCOMING_UDP_MAX, Comm::IsConnOpen(), MAX_INCOMING_INTERVAL, nfds, statCounter, SquidConfig::udp, and udp_io_events.

commIncomingStats()

static void commIncomingStats ( StoreEntry *  sentry )

static

Definition at line 752 of file ModSelectWin32.cc.

References StatCounters::comm_dns_incoming, StatCounters::comm_tcp_incoming, StatCounters::comm_udp_incoming, StatHist::dump(), incoming_dns_interval, INCOMING_FACTOR, incoming_tcp_interval, incoming_udp_interval, statCounter, statHistIntDumper, and storeAppendPrintf().

commUpdateReadBits()

void commUpdateReadBits ( int  fd, PF *  handler  )

static

Definition at line 771 of file ModSelectWin32.cc.

References global_readfds, and nreadfds.

Referenced by comm_check_incoming_select_handlers().

commUpdateWriteBits()

void commUpdateWriteBits ( int  fd, PF *  handler  )

static

Definition at line 783 of file ModSelectWin32.cc.

References global_writefds, MAX_POLL_TIME, nwritefds, and Comm::QuickPollRequired().

Referenced by comm_check_incoming_select_handlers().

examine_select()

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

static

Definition at line 690 of file ModSelectWin32.cc.

References fde::closeHandler, commCallCloseHandlers(), DBG_CRITICAL, debugs, fde::desc, F(), fd_table, fdTypeStr, NULL, 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 155 of file ModSelectWin32.cc.

References DnsSocketA, and DnsSocketB.

fdIsTcpListener()

static int fdIsTcpListener ( int  fd )

static

Definition at line 167 of file ModSelectWin32.cc.

References HttpPortList, and NULL.

fdIsUdpListener()

static int fdIsUdpListener ( int  fd )

static

Definition at line 143 of file ModSelectWin32.cc.

References Comm::Connection::fd, icpIncomingConn, icpOutgoingConn, and NULL.

Variable Documentation

commIncomingStats

OBJH commIncomingStats

static

Definition at line 43 of file ModSelectWin32.cc.

Referenced by comm_select_dns_incoming().

dns_io_events

int dns_io_events = 0

static

Definition at line 107 of file ModSelectWin32.cc.

Referenced by comm_select_dns_incoming().

global_readfds

fd_set global_readfds

static

Definition at line 50 of file ModSelectWin32.cc.

Referenced by comm_select_dns_incoming(), and commUpdateReadBits().

global_writefds

fd_set global_writefds

static

Definition at line 51 of file ModSelectWin32.cc.

Referenced by comm_select_dns_incoming(), and commUpdateWriteBits().

incoming_dns_interval

int incoming_dns_interval = 16 << INCOMING_FACTOR

static

Definition at line 110 of file ModSelectWin32.cc.

Referenced by comm_select_dns_incoming(), and commIncomingStats().

incoming_tcp_interval

int incoming_tcp_interval = 16 << INCOMING_FACTOR

static

Definition at line 111 of file ModSelectWin32.cc.

Referenced by comm_select_tcp_incoming(), and commIncomingStats().

incoming_udp_interval

int incoming_udp_interval = 16 << INCOMING_FACTOR

static

Definition at line 109 of file ModSelectWin32.cc.

Referenced by comm_select_udp_incoming(), and commIncomingStats().

MAX_POLL_TIME

int MAX_POLL_TIME = 1000

static

Definition at line 27 of file ModSelectWin32.cc.

Referenced by commUpdateWriteBits().

nreadfds

int nreadfds

static

Definition at line 52 of file ModSelectWin32.cc.

Referenced by comm_select_dns_incoming(), and commUpdateReadBits().

nwritefds

int nwritefds

static

Definition at line 53 of file ModSelectWin32.cc.

Referenced by comm_select_dns_incoming(), and commUpdateWriteBits().

tcp_io_events

int tcp_io_events = 0

static

Definition at line 108 of file ModSelectWin32.cc.

Referenced by comm_select_tcp_incoming().

udp_io_events

int udp_io_events = 0

static

Definition at line 106 of file ModSelectWin32.cc.

Referenced by comm_select_udp_incoming().

zero_tv

struct timeval zero_tv

static

Definition at line 49 of file ModSelectWin32.cc.

Referenced by comm_check_incoming_select_handlers(), and comm_select_dns_incoming().