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

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

Definition at line 113 of file ModSelectWin32.cc.

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

Definition at line 114 of file ModSelectWin32.cc.

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

Definition at line 112 of file ModSelectWin32.cc.

#define DEBUG_FDBITS   0

Definition at line 314 of file ModSelectWin32.cc.

#define FD_MASK_BITS   (FD_MASK_BYTES*NBBY)

Definition at line 36 of file ModSelectWin32.cc.

#define FD_MASK_BYTES   sizeof(fd_mask)

Definition at line 35 of file ModSelectWin32.cc.

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

Definition at line 30 of file ModSelectWin32.cc.

#define INCOMING_FACTOR   5

Definition at line 104 of file ModSelectWin32.cc.

Referenced by commIncomingStats().

#define MAX_INCOMING_INTEGER   256

Definition at line 103 of file ModSelectWin32.cc.

#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().

#define NBBY   8

Definition at line 33 of file ModSelectWin32.cc.

Function Documentation

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().

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, Config, StatHist::count(), SquidConfig::dns, dns_io_events, DnsSocketA, DnsSocketB, incoming_dns_interval, INCOMING_DNS_MAX, MAX_INCOMING_INTERVAL, nfds, and statCounter.

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.

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.

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().

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().

void commUpdateWriteBits ( int  fd, PF *  handler  )

static

Definition at line 783 of file ModSelectWin32.cc.

References global_writefds, and nwritefds.

Referenced by comm_check_incoming_select_handlers().

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().

static int fdIsDns ( int  fd )

static

Definition at line 155 of file ModSelectWin32.cc.

References DnsSocketA, and DnsSocketB.

static int fdIsTcpListener ( int  fd )

static

Definition at line 167 of file ModSelectWin32.cc.

References HttpPortList, and NULL.

static int fdIsUdpListener ( int  fd )

static

Definition at line 143 of file ModSelectWin32.cc.

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

Variable Documentation

OBJH commIncomingStats

static

Definition at line 43 of file ModSelectWin32.cc.

int dns_io_events = 0

static

Definition at line 107 of file ModSelectWin32.cc.

Referenced by comm_select_dns_incoming().

fd_set global_readfds

static

Definition at line 50 of file ModSelectWin32.cc.

Referenced by commUpdateReadBits().

fd_set global_writefds

static

Definition at line 51 of file ModSelectWin32.cc.

Referenced by commUpdateWriteBits().

int incoming_dns_interval = 16 << INCOMING_FACTOR

static

Definition at line 110 of file ModSelectWin32.cc.

Referenced by comm_select_dns_incoming(), and commIncomingStats().

int incoming_tcp_interval = 16 << INCOMING_FACTOR

static

Definition at line 111 of file ModSelectWin32.cc.

Referenced by comm_select_tcp_incoming(), and commIncomingStats().

int incoming_udp_interval = 16 << INCOMING_FACTOR

static

Definition at line 109 of file ModSelectWin32.cc.

Referenced by comm_select_udp_incoming(), and commIncomingStats().

int MAX_POLL_TIME = 1000

static

Definition at line 27 of file ModSelectWin32.cc.

int nreadfds

static

Definition at line 52 of file ModSelectWin32.cc.

Referenced by commUpdateReadBits().

int nwritefds

static

Definition at line 53 of file ModSelectWin32.cc.

Referenced by commUpdateWriteBits().

int tcp_io_events = 0

static

Definition at line 108 of file ModSelectWin32.cc.

Referenced by comm_select_tcp_incoming().

int udp_io_events = 0

static

Definition at line 106 of file ModSelectWin32.cc.

Referenced by comm_select_udp_incoming().

struct timeval zero_tv

static

Definition at line 49 of file ModSelectWin32.cc.

Referenced by comm_check_incoming_select_handlers().